JPWO2012147398A1 - Anthraquinone derivative and positive electrode active material for lithium ion secondary battery containing the same - Google Patents

Abstract

An object of the present invention is to provide an anthraquinone derivative capable of simultaneously achieving weight reduction, high capacity and long life (cycle suitability) of a lithium ion secondary battery, and a lithium ion secondary battery containing an anthraquinone derivative And a lithium ion secondary battery having a positive electrode as a constituent element. The positive electrode active material for a lithium ion secondary battery according to the present invention is characterized by containing the anthraquinone derivatives A, B, C1, C2 and D according to the present invention.

Description

  The present invention relates to an anthraquinone derivative, a positive electrode active material for a lithium ion secondary battery containing the anthraquinone derivative, a positive electrode including the positive electrode active material, and a lithium ion secondary battery including the positive electrode as a constituent element.

  With the downsizing and higher functionality of electronic devices such as notebook computers and mobile phones, there are increasing demands for lighter, higher capacity and longer life (cycle suitability) of lithium ion secondary batteries used in these devices. Yes. However, since the positive electrode active material of the lithium ion secondary battery that is currently used mainly uses cobalt or manganese oxide having a large specific gravity, the total weight of the lithium ion secondary battery is large. Therefore, in order to reduce the weight of the entire lithium ion secondary battery, it is conceivable to reduce the proportion of the positive electrode active material in the entire lithium ion secondary battery. Longer life and longer life (cycle suitability) are unlikely to be desired.

  In recent years, it has been actively studied whether or not organic compounds composed of lightweight elements can be applied as electrode active materials. In particular, a π-electron conjugated conductive polymer is promising as an electrode active material. For example, Patent Document 1 describes a novel polyaniline derivative compound of a conductive polymer capable of one-step two-electron transfer and a secondary battery using a protonated version of the compound as a positive electrode. According to Patent Document 1, since the electrode material using the compound of the novel polyaniline derivative has a high energy density, the use of the electrode material as a positive electrode means that a zinc plate is used as a negative electrode and a zinc sulfate aqueous solution is used as an electrolyte. It is stated to be useful in secondary batteries.

Japanese Patent Laid-Open No. 2005-2278

  However, in order to achieve further higher capacity and longer life (cycle suitability) while reducing the weight of the lithium ion secondary battery, further improvement of the electrode active material for the lithium ion secondary battery has been made. What is desired is the current situation. Therefore, active research is being conducted on whether or not novel organic compounds can be applied to electrode active materials for lithium secondary batteries.

  An object of the present invention is to provide an anthraquinone derivative capable of simultaneously achieving weight reduction, high capacity and long life (cycle suitability) of a lithium ion secondary battery, and lithium containing an anthraquinone derivative. It aims at providing the positive electrode active material for ion secondary batteries, the positive electrode provided with a positive electrode active material, and the lithium ion secondary battery which uses a positive electrode as a component.

  As a result of intensive studies to achieve the above-mentioned object, the present inventors have found that structural conversion of the ethylenedianiline moiety can be performed on a compound comprising an anthracene skeleton and an ethylenedianiline unit, A new anthraquinone derivative A was synthesized to complete the present invention.

  In addition, the present inventors have conducted extensive research to achieve the above object, and as a result, substituted or unsubstituted at the 2-position of the starting material anthraquinone with respect to a compound comprising an anthracene skeleton and an ethylenedianiline unit. The present inventors have found that a structural transformation can be carried out by introducing a hydrocarbon group, and a novel anthraquinone derivative B was synthesized to complete the present invention.

  Furthermore, as a result of intensive studies to achieve the above object, the inventors of the present invention have found that the starting material anthraquinone 2-position or 2-position 6 and 6 with respect to a compound composed of anthracene skeleton and ethylenedianiline unit. The present inventors have found that structural transformation can be performed by introducing a substituted or unsubstituted alkoxy group into the position, and have completed the present invention by synthesizing novel anthraquinone derivatives C1 and C2.

  Furthermore, the present inventors have conducted extensive research to achieve the above object, and as a result, introduced an unsubstituted anthraquinone as a starting material and a substituted or unsubstituted alkoxy group at the 2-position of the anthraquinone to convert the structure. It was surprisingly found that the substituted anthraquinone can be copolymerized, and a novel anthraquinone derivative D was synthesized to complete the present invention.

Specific means for achieving the above object are as follows.
(1) Anthraquinone derivative A, which is represented by the following general formula (A-1).
(In the general formula (A-1), R ₁ represents a substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group, and n ₁ is an integer of ₁ to 100. .)
(2) The anthraquinone derivative A according to item (1), wherein R ₁ is a substituted or unsubstituted phenylene group or a substituted or unsubstituted thienylene group.
(3) A positive electrode active material for a lithium ion secondary battery, comprising the anthraquinone derivative A according to (1) or (2).
(4) Anthraquinone derivative B, which is represented by the following general formula (B-1).
(In the general formula (B-1), R ₂ is represented by a substituted or unsubstituted aliphatic hydrocarbon group, a substituted or unsubstituted aromatic hydrocarbon group, or the following general formula (B-2). And n ₂ is an integer of 1 to 100.)
(In the general formula (B-2), R ₃ represents a linking group or a single bond, and m ₁ is an integer of ₁ to 10.)
(5) The anthraquinone derivative B according to item (4), wherein R ₃ is a substituted or unsubstituted phenylene group.
(6) A positive electrode active material for a lithium ion secondary battery, comprising the anthraquinone derivative B according to (4) or (5).
(7) An anthraquinone derivative C1 represented by the following general formula (C-1).
(In the general formula (C-1), R ₄ represents a substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group, and n ₃ is an integer of 1 to 100. .)
(8) The anthraquinone derivative C1 according to item (7), wherein R ₄ is a methoxymethyl group or a p-methoxybenzyl group.
(9) An anthraquinone derivative C2 represented by the following general formula (C-2).
(The general formula (C-2) R ₄ in has the same meaning as R ₄ in the in the general formula (C-1), the In formula (C-2), R ₅ is a substituted or unsubstituted aliphatic An aromatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group, and n ₃ is an integer of 1 to 100.)
(10) The anthraquinone derivative C2 according to item (9), wherein R ₄ and / or R ₅ thereof is a methoxymethyl group and / or a p-methoxybenzyl group.
(11) A positive electrode active material for a lithium ion secondary battery, comprising the anthraquinone derivative C1 according to (7) or (8).
(12) A positive electrode active material for a lithium ion secondary battery, comprising the anthraquinone derivative C2 according to (9) or (10).
(13) An anthraquinone derivative D, which is represented by the following general formula (D-1).
(In the general formula (D-1), R ₆ is represented by a substituted or unsubstituted aliphatic hydrocarbon group, a substituted or unsubstituted aromatic hydrocarbon group, or the following general formula (D-2). A group, n ₄ is an integer of 1 to 100, and m ₂ is 0 or an integer of 1 to 100.)
(In the general formula (D-2), R ₇ represents a substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group.)
(14) The anthraquinone derivative D according to item (13), wherein R ₆ is a substituent having a hetero atom.
(15) The anthraquinone derivative D according to (13) or (14), wherein R ₇ is a substituent having a hetero atom.
(16) A positive electrode active material for a lithium ion secondary battery, comprising the anthraquinone derivative D according to any one of (13) to (15).
(17) The positive electrode active material according to (3), (6), (11), (12), or (16) is provided on at least the surface of the current collector. A positive electrode for a lithium ion secondary battery.
(18) A lithium ion secondary battery comprising a positive electrode, a negative electrode, and an electrolyte as at least constituent elements, wherein the positive electrode is the positive electrode described in (17).
(19) A vehicle equipped with the lithium ion secondary battery according to item (18).

  According to the present invention, an anthraquinone derivative excellent in multi-electron mobility and suitable for a lithium ion secondary battery application is provided, and a positive electrode active material and a positive electrode active material for a lithium ion secondary battery containing an anthraquinone derivative are provided. Provided are a positive electrode and a lithium ion secondary battery having the positive electrode as a constituent element.

FIG. 1 is a graph showing the results of battery characteristic evaluation of the anthraquinone derivative A of the present invention carried out in Example A. FIG. 2 is a diagram showing the results of battery characteristic evaluation of an anthraquinone polymer of a comparative example, which was performed in Example A. FIG. 3 is a graph showing the results of battery characteristic evaluation of the anthraquinone derivative B of the present invention carried out in Example B. 4 is a graph showing the results of battery characteristic evaluation of an anthraquinone polymer of a comparative example, which was performed in Example B. FIG. FIG. 5 is a graph showing the results of the battery capacity at the 100th cycle of the anthraquinone derivative B of the present invention and the anthraquinone polymer of the comparative example, which were carried out in Example B. FIG. 6 is a graph showing the results of battery characteristic evaluation of the anthraquinone derivatives C1 and C2 of the present invention carried out in Example C. FIG. 7 is a graph showing the results of the battery characteristic evaluation of the anthraquinone derivative C1 of the present invention carried out in Example C. FIG. 8 is a graph showing the results of battery characteristic evaluation of the anthraquinone derivative C1 of the present invention carried out in Example C. FIG. 9 is a diagram showing the results of battery characteristic evaluation of the anthraquinone polymer of the comparative example, which was performed in Example C. FIG. 10 is a graph showing the results of the battery capacity at the 100th cycle of the anthraquinone derivative C1 of the present invention and the anthraquinone polymer of the comparative example, which were performed in Example C. FIG. 11 is a diagram showing the results of battery characteristic evaluation of the anthraquinone derivative D of the present invention carried out in Example D. FIG. 12 is a diagram showing the results of battery characteristic evaluation of the anthraquinone derivative D of the present invention carried out in Example D. FIG. 13 is a diagram showing the results of battery characteristic evaluation of an anthraquinone polymer of a comparative example, which was performed in Example D. FIG. 14 is a graph showing the results of the battery capacity at the 100th cycle of the anthraquinone derivative D of the present invention and the anthraquinone polymer of the comparative example implemented in Example D.

  Hereinafter, the present invention will be described in more detail.

(1) Anthraquinone derivative A
Anthraquinone derivative A according to the present invention is represented by the following general formula (A-1).

In General Formula (A-1), R ₁ represents a substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group, and n ₁ is an integer of ₁ to 100. Here, the substituted aliphatic hydrocarbon group or the substituted aromatic hydrocarbon group means that the aliphatic hydrocarbon group or the aromatic hydrocarbon group is further substituted with a substituent, for example, When it is a substituted arylene group or a substituted cyclic substituent, it means that it has at least one substituent in the arylene group portion or on the ring portion of the cyclic substituent.

R ₁ is not particularly limited as long as it is a divalent substituted or unsubstituted aliphatic hydrocarbon group, or a divalent substituted or unsubstituted aromatic hydrocarbon group. Substituted methylene group, substituted or unsubstituted ethylene group, substituted or unsubstituted propylene group, substituted or unsubstituted ether group, substituted or unsubstituted thioether group, substituted or unsubstituted phenylene group, substituted or unsubstituted Examples include a biphenylene group, a substituted or unsubstituted thiophenylene group, a substituted or unsubstituted thienylene group, a substituted or unsubstituted furylene group, a substituted or unsubstituted pyrrolylene group.

The substituent when R ₁ is substituted with a substituent is not particularly limited, and examples thereof include a substituted or unsubstituted methyl group, a substituted or unsubstituted ethyl group, a substituted or unsubstituted propyl Group, substituted or unsubstituted phenyl group, substituted or unsubstituted biphenyl group, substituted or unsubstituted thiophenyl group, substituted or unsubstituted thienyl group, substituted or unsubstituted furanyl group, substituted or unsubstituted pyrrolyl group, etc. Is mentioned.

R ₁ is preferably a substituted or unsubstituted phenylene group or a substituted or unsubstituted thienylene group, and more preferably an unsubstituted phenylene group or an unsubstituted thienylene group.

n ₁ is an integer of 1 to 100 indicating the degree of polymerization. n ₁ is preferably an integer of 2 or more.

  Although the preferable specific exemplary compound of the anthraquinone derivative A by this invention is shown, the anthraquinone derivative A by this invention is not limited to these compounds.

  Next, a method for synthesizing the anthraquinone derivative A according to the present invention will be described. The synthesis route of the anthraquinone derivative A according to the present invention is as follows.

  The method for synthesizing anthraquinone derivative A according to the present invention comprises adding a titanium (IV) chloroform solution to a chloroform solution of anthraquinone (Aa), 4-bromoaniline and 1,4-diazabicyclo [2,2,2] octane. Then, an imine (Ab) is synthesized (step A-1), and a Pd catalyst is added to a solution of the imine (Ab), the substituted diboronic acid, and a base to obtain the present invention. An anthraquinone derivative (A-1) is synthesized (step A-2).

(2) Cathode Active Material Containing Anthraquinone Derivative A for Lithium Ion Secondary Battery A cathode active material for a lithium ion secondary battery according to the present invention is characterized by containing an anthraquinone derivative A according to the present invention. Here, the positive electrode active material containing the anthraquinone derivative A for a lithium ion secondary battery directly contributes to the positive electrode of the lithium ion secondary battery in an electrode reaction such as a charge reaction and a discharge reaction of the lithium ion secondary battery. It means a substance.

(3) Anthraquinone derivative B
The anthraquinone derivative B according to the present invention is represented by the following general formula (B-1).

In general formula (B-1), R ₂ represents a substituted or unsubstituted aliphatic hydrocarbon group, a substituted or unsubstituted aromatic hydrocarbon group, or a group represented by the following general formula (B-2). N ₂ is an integer from 1 to 100. Here, the substituted aliphatic hydrocarbon group or the substituted aromatic hydrocarbon group in R ₂ means that the aliphatic hydrocarbon group or the aromatic hydrocarbon group is further substituted with a substituent. For example, in the case of a substituted aryl group or a substituted cyclic substituent, it means that the aryl group portion or the cyclic substituent has an at least one substituent on the ring.

In general formula (B-2), R < ₃ > shows a coupling group or a single bond, and m < ₁ > is an integer of 1-10.

When R ₂ is a substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group, a monovalent substituted or unsubstituted aliphatic hydrocarbon group, substituted or unsubstituted aromatic carbonization Although it is not particularly limited as long as it is a hydrogen group, for example, a substituted or unsubstituted methyl group, a substituted or unsubstituted ethyl group, a substituted or unsubstituted n-propyl group, a substituted or unsubstituted isopropyl group Substituted or unsubstituted n-butyl group, substituted or unsubstituted sec-butyl group, substituted or unsubstituted isobutyl group, substituted or unsubstituted tert-butyl group, substituted or unsubstituted n-pentyl group, substituted Or a substituted or unsubstituted alkyl group such as an unsubstituted isopentyl group, a substituted or unsubstituted cyclopentyl group, a substituted or unsubstituted cyclic alkyl group such as a substituted or unsubstituted cyclohexyl group, a substituted Is a substituted or unsubstituted alkenyl group such as an unsubstituted vinyl group, a substituted or unsubstituted allyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted tolyl group, a substituted or unsubstituted naphthyl group, etc. Or an unsubstituted aryl group is mentioned.

When R ₂ is a substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group, the substituent when further substituted with a substituent is not particularly limited. For example, a substituted or unsubstituted phenyl group, a substituted or unsubstituted tolyl group, a substituted or unsubstituted aryl group such as a substituted or unsubstituted naphthyl group, a substituted or unsubstituted methoxy group, a substituted or unsubstituted ethoxy A substituted or unsubstituted propioxy group, a substituted or unsubstituted isopropoxy group, a substituted or unsubstituted butoxy group, a substituted or unsubstituted sec-butoxy group, a substituted or unsubstituted tert-butoxy group, or the like An unsubstituted alkoxy group is mentioned.

When R ₂ is a substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group, R ₂ preferably has the following structural formula.

When R ₂ is a group represented by the general formula (B-2), R ₃ represents a linking group or a single bond. When R ₃ is a linking group, it is not particularly limited as long as it is a divalent substituent, for example, a substituted or unsubstituted methylene group, a substituted or unsubstituted ethylene group, a substituted or unsubstituted group Propylene group, substituted or unsubstituted ether group, substituted or unsubstituted thioether group, substituted or unsubstituted phenylene group, substituted or unsubstituted biphenylene group, substituted or unsubstituted thiophenylene group, substituted or unsubstituted thienylene Group, substituted or unsubstituted furylene group, substituted or unsubstituted pyrrolylene group, substituted or unsubstituted amide group, and the like. Here, the substituted methylene group or the like means that the methylene group part or the like further has at least one substituent.

When R ₃ is a divalent substituent, the substituent when further substituted with a substituent is not particularly limited, and examples thereof include a substituted or unsubstituted methyl group, substituted or unsubstituted Ethyl group, substituted or unsubstituted propyl group, substituted or unsubstituted phenyl group, substituted or unsubstituted biphenyl group, substituted or unsubstituted thiophenyl group, substituted or unsubstituted thienyl group, substituted or unsubstituted furanyl Group, substituted or unsubstituted pyrrolyl group and the like.

R ₃ is preferably a substituted or unsubstituted phenylene group, and more preferably an unsubstituted phenylene group.

n ₂ is an integer of 1 to 100 indicating the degree of polymerization. n ₂ is preferably an integer of 6 or more.

m ₁ is an integer of 1 to 10 indicating the degree of polymerization. m ₁ is preferably an integer of 2 or more.

  Although the preferable specific exemplary compound of the anthraquinone derivative B by this invention is shown, the anthraquinone derivative B by this invention is not limited to these compounds.

  Next, a method for synthesizing the anthraquinone derivative B according to the present invention will be described. The synthesis route of the anthraquinone derivative B according to the present invention is as follows.

  Tetrakis [triphenylphosphine] palladium (0) was added to a toluene solution of 2-bromoanthraquinone (Ba), 4-vinylphenylboronic acid and sodium phosphate tribasic 12 water at room temperature to add quinine (B- b) was synthesized (step B-1), and quinine (Bb), 1,4-diazabicyclo [2,2,2] octane (78 mg, 0.70 mmol), and aniline in a chlorobenzene solution were combined with titanium chloride. (IV) A chlorobenzene solution is added to synthesize an anthraquinone derivative (B-1) (step B-2).

  Further, as Step B-3 (not shown in the above synthesis route), 2,2′-azobis (isobutyronitrile) was added to a tetrahydrofuran solution (2 ml) of an anthraquinone derivative (B-1) into which an olefin was introduced. ) (10 mg, 0.06 mmol) can be added at room temperature to crosslink the olefin part of the anthraquinone derivative (B-1).

(4) Cathode Active Material Containing Anthraquinone Derivative B for Lithium Ion Secondary Battery The cathode active material for a lithium ion secondary battery according to the present invention is characterized by containing the anthraquinone derivative B according to the present invention. Here, the positive electrode active material containing the anthraquinone derivative B for a lithium ion secondary battery directly contributes to the positive electrode of the lithium ion secondary battery in an electrode reaction such as a charge reaction and a discharge reaction of the lithium ion secondary battery. It means a substance.

(5) Anthraquinone derivatives C1 and C2
The anthraquinone derivative C1 according to the present invention is represented by the following general formula (C-1).

In General Formula (C-1), R ₄ represents a substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group, and n ₃ is an integer of 1 to 100. Here, the substituted aliphatic hydrocarbon group or the substituted aromatic hydrocarbon group in R ₄ means that the aliphatic hydrocarbon group or the aromatic hydrocarbon group is further substituted with a substituent. For example, in the case of a substituted aryl group or a substituted cyclic substituent, it means that the aryl group portion or the cyclic substituent has an at least one substituent on the ring.

R ₄ is not particularly limited as long as it is a monovalent substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group. For example, R ₄ is a substituted or unsubstituted methyl group. Substituted or unsubstituted ethyl group, substituted or unsubstituted n-propyl group, substituted or unsubstituted isopropyl group, substituted or unsubstituted n-butyl group, substituted or unsubstituted sec-butyl group, substituted or unsubstituted A substituted or unsubstituted alkyl group, a substituted or unsubstituted cyclopentyl group, such as a substituted isobutyl group, a substituted or unsubstituted tert-butyl group, a substituted or unsubstituted n-pentyl group, a substituted or unsubstituted isopentyl group, A substituted or unsubstituted cyclic alkyl group such as a substituted or unsubstituted cyclohexyl group, a substituted or unsubstituted vinyl group, a substituted or unsubstituted alkenyl group such as a substituted or unsubstituted allyl group, substituted or unsubstituted Substituted or unsubstituted aryl group such as unsubstituted phenyl group, substituted or unsubstituted tolyl group, substituted or unsubstituted naphthyl group, substituted or unsubstituted aromatic alkyl group such as substituted or unsubstituted benzyl group, etc. Is mentioned.

The substituent when R ₄ is further substituted with a substituent is not particularly limited, and examples thereof include a substituted or unsubstituted phenyl group, a substituted or unsubstituted tolyl group, a substituted or unsubstituted group. A substituted or unsubstituted aryl group such as a naphthyl group, a substituted or unsubstituted methoxy group, a substituted or unsubstituted ethoxy group, a substituted or unsubstituted propioxy group, a substituted or unsubstituted isopropoxy group, a substituted or unsubstituted Examples include butoxy group, substituted or unsubstituted sec-butoxy group, substituted or unsubstituted alkoxy group such as substituted or unsubstituted tert-butoxy group, substituted or unsubstituted dioxolanyl group, substituted or unsubstituted dioxanyl group, etc. It is done.

R ₄ preferably has the following structural formulas (CA to CK), more preferably structural formulas CA (methoxymethyl group) and CK (p-methoxybenzyl group).

  The anthraquinone derivative C2 according to the present invention is represented by the following general formula (C-2).

Formula (C-2) R ₄ in the general formula (1) it has the same meaning as R _4, its in the general formula (2), R ₅ represents a substituted or unsubstituted aliphatic hydrocarbon group, or a substituted or show the unsubstituted aromatic hydrocarbon group, n ₃ is an integer from 1 to 100. Here, the substituted aliphatic hydrocarbon group or the substituted aromatic hydrocarbon group in R ₅ is an aliphatic hydrocarbon group or an aromatic hydrocarbon group as described above for R ₄ . For example, in the case of a substituted aryl group or a substituted cyclic substituent, it has at least one substituent on the ring portion of the aryl group or the cyclic substituent. Means that.

R ₅ is not particularly limited as long as it is a monovalent substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group, for example, a substituted or unsubstituted methyl group Substituted or unsubstituted ethyl group, substituted or unsubstituted n-propyl group, substituted or unsubstituted isopropyl group, substituted or unsubstituted n-butyl group, substituted or unsubstituted sec-butyl group, substituted or unsubstituted A substituted or unsubstituted alkyl group, a substituted or unsubstituted cyclopentyl group, such as a substituted isobutyl group, a substituted or unsubstituted tert-butyl group, a substituted or unsubstituted n-pentyl group, a substituted or unsubstituted isopentyl group, A substituted or unsubstituted cyclic alkyl group such as a substituted or unsubstituted cyclohexyl group, a substituted or unsubstituted vinyl group, a substituted or unsubstituted alkenyl group such as a substituted or unsubstituted allyl group, substituted or unsubstituted Substituted or unsubstituted aryl group such as unsubstituted phenyl group, substituted or unsubstituted tolyl group, substituted or unsubstituted naphthyl group, substituted or unsubstituted aromatic alkyl group such as substituted or unsubstituted benzyl group, etc. Is mentioned.

The substituent when R ₅ is further substituted with a substituent is not particularly limited, and examples thereof include a substituted or unsubstituted phenyl group, a substituted or unsubstituted tolyl group, a substituted or unsubstituted group. A substituted or unsubstituted aryl group such as a naphthyl group, a substituted or unsubstituted methoxy group, a substituted or unsubstituted ethoxy group, a substituted or unsubstituted propioxy group, a substituted or unsubstituted isopropoxy group, a substituted or unsubstituted Examples include butoxy group, substituted or unsubstituted sec-butoxy group, substituted or unsubstituted alkoxy group such as substituted or unsubstituted tert-butoxy group, substituted or unsubstituted dioxolanyl group, substituted or unsubstituted dioxanyl group, etc. It is done.

R ₅ is preferably the following structural formulas (CA to CK), more preferably structural formulas CA (methoxymethyl group) and CK (p-methoxybenzyl group).

More preferably, R ₄ and R ₅ are structural formula A (methoxymethyl group) and / or structural formula K (p-methoxybenzyl group).

n ₃ is an integer of 1 to 100 indicating the degree of polymerization. n ₃ is preferably an integer of 6 or more.

  Preferred specific exemplary compounds (C-1-A to C-1-K, C-2-A to C-2-K) of anthraquinone derivatives C1 and C2 according to the present invention are shown. C2 is not limited to these compounds.

  Next, a method for synthesizing the anthraquinone derivatives C1 and C2 according to the present invention will be described.

  The synthesis route of the anthraquinone derivative C1 represented by the general formula (C-1) according to the present invention is as follows.

Sodium hydride is added to a dimethylformamide solution of 2-hydroxyanthraquinone (C-a) at 0 ° C., and a halide (R ₄ -X) is added to the reaction mixture to have a substituent of R _4. Anthraquinone (Cb) was synthesized (step C-1), anthraquinone (Cb) having an R ₄ substituent at the 2-position, ethylenedianiline, 1,4-diazabicyclo [2,2, 2] A titanium (IV) chlorobenzene solution is added to a chlorobenzene solution with octane to synthesize an anthraquinone derivative (C-1).

  The synthesis route of the anthraquinone derivative C2 represented by the general formula (C-2) according to the present invention is as follows.

To a solution of 2,6-dihydroxyanthraquinone (Cc) in dimethylformamide, sodium hydride is added at 0 ° C., and two halides (R ₄ -X, R ₅ -X) are added to the reaction mixture. Then, an anthraquinone (Cd) having an R ₄ substituent at the 2-position and an R ₅ substituent at the 6-position is synthesized (step C-3), and an R ₄ substituent is located at the 2-position. In addition, titanium (IV) chloride is added to a chlorobenzene solution of anthraquinone (Cd) having an R ₅ substituent at the 6-position, ethylenedianiline, and 1,4-diazabicyclo [2,2,2] octane. A chlorobenzene solution was added to synthesize an anthraquinone derivative (C-2).

(6) Cathode Active Material Containing Anthraquinone Derivative C1 for Lithium Ion Secondary Battery A cathode active material for a lithium ion secondary battery according to the present invention contains an anthraquinone derivative C1 according to the present invention. Here, the positive electrode active material containing the anthraquinone derivative C1 for a lithium ion secondary battery directly contributes to the positive electrode of the lithium ion secondary battery in an electrode reaction such as a charge reaction and a discharge reaction of the lithium ion secondary battery. It means a substance.

(7) Cathode Active Material Containing Anthraquinone Derivative C2 for Lithium Ion Secondary Battery A cathode active material for a lithium ion secondary battery according to the present invention contains an anthraquinone derivative C2 according to the present invention. Here, the positive electrode active material containing the anthraquinone derivative C2 for a lithium ion secondary battery directly contributes to the positive electrode of the lithium ion secondary battery in an electrode reaction such as a charge reaction and a discharge reaction of the lithium ion secondary battery. It means a substance.

(8) Anthraquinone derivative D
The anthraquinone derivative D according to the present invention is represented by the following general formula (D-1).

In general formula (D-1), R ₆ represents a substituted or unsubstituted aliphatic hydrocarbon group, a substituted or unsubstituted aromatic hydrocarbon group, or a group represented by the following general formula (D-2). N ₄ and m ₂ are integers from 1 to 100. Here, the substituted aliphatic hydrocarbon group or the substituted aromatic hydrocarbon group in R ₆ means that the aliphatic hydrocarbon group or the aromatic hydrocarbon group is further substituted with a substituent. For example, in the case of a substituted aryl group or a substituted cyclic substituent, it means that the aryl group portion or the cyclic substituent has an at least one substituent on the ring.

In General Formula (D-2), R ₇ represents a substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group. Here, the substituted aliphatic hydrocarbon group or the substituted aromatic hydrocarbon group in R ₇ means that the aliphatic hydrocarbon group or the aromatic hydrocarbon group is further substituted with a substituent. For example, in the case of a substituted aryl group or a substituted cyclic substituent, it means that the aryl group portion or the cyclic substituent has an at least one substituent on the ring.

When R ₆ is a substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group, a monovalent substituted or unsubstituted aliphatic hydrocarbon group, substituted or unsubstituted aromatic carbonization Although it is not particularly limited as long as it is a hydrogen group, for example, a substituted or unsubstituted methyl group, a substituted or unsubstituted ethyl group, a substituted or unsubstituted n-propyl group, a substituted or unsubstituted isopropyl group Substituted or unsubstituted n-butyl group, substituted or unsubstituted sec-butyl group, substituted or unsubstituted isobutyl group, substituted or unsubstituted tert-butyl group, substituted or unsubstituted n-pentyl group, substituted Or a substituted or unsubstituted alkyl group such as an unsubstituted isopentyl group, a substituted or unsubstituted cyclopentyl group, a substituted or unsubstituted cyclic alkyl group such as a substituted or unsubstituted cyclohexyl group, a substituted Is a substituted or unsubstituted alkenyl group such as an unsubstituted vinyl group, a substituted or unsubstituted allyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted tolyl group, a substituted or unsubstituted naphthyl group, etc. Or an unsubstituted aryl group etc. are mentioned.

When R ₆ is a substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group, the substituent when further substituted with a substituent is not particularly limited. For example, a substituted or unsubstituted phenyl group, a substituted or unsubstituted tolyl group, a substituted or unsubstituted aryl group such as a substituted or unsubstituted naphthyl group, a substituted or unsubstituted methoxy group, a substituted or unsubstituted ethoxy A substituted or unsubstituted propioxy group, a substituted or unsubstituted isopropoxy group, a substituted or unsubstituted butoxy group, a substituted or unsubstituted sec-butoxy group, a substituted or unsubstituted tert-butoxy group, or the like An unsubstituted alkoxy group etc. are mentioned.

When R ₆ is a group represented by the general formula (D-2), R ₇ is a monovalent substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group. Although not particularly limited, for example, a substituted or unsubstituted methyl group, a substituted or unsubstituted ethyl group, a substituted or unsubstituted n-propyl group, a substituted or unsubstituted isopropyl group, a substituted or unsubstituted N-butyl group, substituted or unsubstituted sec-butyl group, substituted or unsubstituted isobutyl group, substituted or unsubstituted tert-butyl group, substituted or unsubstituted n-pentyl group, substituted or unsubstituted isopentyl A substituted or unsubstituted alkyl group such as a group, a substituted or unsubstituted cyclopentyl group, a substituted or unsubstituted cycloalkyl group such as a substituted or unsubstituted cyclohexyl group, a substituted or unsubstituted vinyl group, a substituted or unsubstituted Ant Substituted or unsubstituted alkenyl groups, substituted or unsubstituted phenyl groups, substituted or unsubstituted tolyl groups, substituted or unsubstituted naphthyl groups, substituted or unsubstituted aryl groups, substituted or unsubstituted Examples include substituted or unsubstituted aromatic alkyl groups such as a benzyl group.

The substituent when R ₇ is further substituted with a substituent is not particularly limited, and examples thereof include a substituted or unsubstituted phenyl group, a substituted or unsubstituted tolyl group, a substituted or unsubstituted group. A substituted or unsubstituted aryl group such as a naphthyl group, a substituted or unsubstituted methoxy group, a substituted or unsubstituted ethoxy group, a substituted or unsubstituted propioxy group, a substituted or unsubstituted isopropoxy group, a substituted or unsubstituted Examples include butoxy group, substituted or unsubstituted sec-butoxy group, substituted or unsubstituted alkoxy group such as substituted or unsubstituted tert-butoxy group, substituted or unsubstituted dioxolanyl group, substituted or unsubstituted dioxanyl group, etc. It is done.

R ₆ is preferably a substituent having a hetero atom.

R ₇ is preferably a substituent having a hetero atom, more preferably the following structural formulas (DA to DL), and further the structural formula DA (methoxymethyl group). It is more preferable.

n ₄ is an integer of 1 to 100 indicating the degree of polymerization. n ₄ is preferably an integer of 2 or more.

m ₂ is 1 to 100 integer of 0 or degree of polymerization. m ₂ is preferably an integer of 2 or more.

The ratio of n ₄ to m ₂ (n ₄ : m ₂ ) may be any ratio value, but preferably n ₄ : m ₂ = 1: 5.

  Next, preferred specific exemplary compounds (D-1-A to D-1-M) of the anthraquinone derivative D according to the present invention are shown, but the anthraquinone derivative D according to the present invention is not limited to these compounds. .

  Next, a method for synthesizing the anthraquinone derivative D according to the present invention will be described. The synthesis route of the anthraquinone derivative (D-1) according to the present invention is as follows.

  To a solution of anthraquinone (Da), quinone (Db), 4,4′-ethylenedianiline and 1,4-diazabicyclo [2,2,2] octane (323 mg, 2.88 mmol) in chlorobenzene (3 ml), A chlorobenzene solution of titanium (IV) chloride is added to synthesize an anthraquinone derivative (D-1).

(9) Positive electrode active material containing anthraquinone derivative D for lithium ion secondary battery The positive electrode active material for a lithium ion secondary battery according to the present invention contains an anthraquinone derivative D according to the present invention. The positive electrode active material containing an anthraquinone derivative D for a lithium ion secondary battery is a substance that directly contributes to the positive electrode of a lithium ion secondary battery in an electrode reaction such as a charge reaction and a discharge reaction of the lithium ion secondary battery. I mean.

(10) Positive electrode for lithium ion secondary battery The positive electrode for a lithium ion secondary battery according to the present invention is characterized in that the positive electrode active material for a lithium ion secondary battery according to the present invention is provided on at least the surface of the current collector. And

  A current collector is a chemically inert electronic high conductor that keeps a current flowing through an electrode during discharge or charging of a lithium ion secondary battery. The current collector is in the form of a foil, a plate or the like formed of the electronic high conductor. Although it will not specifically limit if it is the shape according to the objective, For example, copper foil, aluminum foil, and aluminum mesh are mentioned.

  One method for providing the positive electrode active material on at least the surface of the current collector includes, for example, applying the positive electrode active material to the surface of the current collector. Here, coating means placing a positive electrode active material on a current collector. Examples of the coating method include a roll coating method, a dip coating method, a doctor blade method, a spray coating method, a curtain coating method, and the like, which are generally used when producing an electrode for a lithium ion secondary battery. If it is a coating method, it will not specifically limit.

  The positive electrode for a lithium ion secondary battery according to the present invention may include a conductive additive in combination with the positive electrode active material of the present invention on at least the surface of the current collector. The conductive auxiliary agent is added to increase conductivity. Examples of the conductive assistant include carbon black, graphite, acetylene black, ketjen black, and carbon fiber, which are carbonaceous fine particles. They may be added alone or in combination of two or more. The amount added is preferably 10 to 2000 parts by mass, more preferably 100 to 1000 parts by mass, and still more preferably 200 to 800 parts by mass per 100 parts by mass of the positive electrode active material of the present invention.

(11) Lithium Ion Secondary Battery A lithium ion secondary battery according to the present invention is characterized in that it comprises at least constituent elements of a positive electrode, a negative electrode, and an electrolyte, and the positive electrode is the positive electrode of the present invention.

  The negative electrode of the lithium ion secondary battery according to the present invention is preferably a lithium-based negative electrode. The lithium-based negative electrode can be composed of a lithium-based metal material such as metal lithium or a lithium alloy (for example, a Li—Al alloy), or a lithium intercalation carbon material. The lithium-based metallic material is preferably used in the form of a foil from the viewpoint of reducing the weight of the battery.

The electrolyte of the lithium ion secondary battery according to the present invention may be disposed between the positive electrode and the negative electrode, or may be disposed as an electrolyte layer. The electrolyte is preferably composed of a polymer gel containing an electrolyte solution (polymer gel electrolyte). Examples of the electrolyte contained in the polymer electrolyte include CF ₃ SO ₃ Li, C ₄ F ₉ SO ₃ Li, (CF ₃ SO ₂ ) ₂ NLi, (CF ₃ SO ₂ ) ₃ CLi, LiBF ₄ , LiPF ₆ , and LiClO. _And lithium salts such as ₄ . The solvent that dissolves the electrolyte is preferably a non-aqueous solvent. Such non-aqueous solvents include chain carbonates, cyclic carbonates, cyclic esters, nitrile compounds, acid anhydrides, amide compounds, phosphate compounds, amine compounds, and the like. Specific examples of the non-aqueous solvent include, for example, ethylene carbonate, propylene carbonate, diethyl carbonate, dimethoxyethane, γ-butyrolactone, N-methylpyrrolidinone, N, N′-dimethylacetamide, a mixture of propylene carbonate and dimethoxyethane, ethylene Examples thereof include a mixture of carbonate and diethyl carbonate, and a mixture of sulfolane and tetrahydrofuran.

  As the polymer gel, it is preferable to use a prepolymer TA210 (polyfunctional acrylate polymer having a polyoxyalkylene chain) that is polymerized with a photopolymerization initiator (for example, IRGACURE 184). In addition, acrylonitrile and methyl acrylate are used. Alternatively, it is also preferable to use a copolymer with methacrylic acid. The polymer gel electrolyte can be obtained by immersing the polymer in the electrolyte solution or polymerizing the polymer structural unit (monomer / compound) in the presence of the electrolyte solution. Furthermore, a polyolefin gel described in JP-A No. 2002-198095 is also preferably used. This gel is a gel of a non-crosslinked polymer in which about 10% by mole of polyethylene is grafted with a compound containing an oligomer of polyethylene oxide such as polyethylene glycol. This polymer has completely different physical properties from non-grafted polyethylene and has the ability to absorb and gel a large amount of organic electrolyte and retain the absorbed solution. Therefore, a gel electrolyte can be obtained by immersing the polymer in an electrolyte solution. In addition, by applying a reaction mixture obtained by adding a crosslinkable monomer to a solution obtained by dissolving the above-mentioned non-crosslinked polymer in an electrolyte solution in an organic solvent to a substrate, and subjecting to a reaction condition for crosslinking polymerization of the crosslinkable monomer A polymer gel electrolyte integrated with the substrate can also be obtained.

  The lithium ion secondary battery according to the present invention may include a separator as one component. The separator can be used for the purpose of preventing the positive electrode and the negative electrode of the lithium ion secondary battery from contacting each other, and may include an electrolyte. And as a separator, a polypropylene porous film and a nonwoven fabric are mentioned, for example, A polypropylene porous film is preferable.

  The configuration form (stacked form) of the lithium ion secondary battery according to the present invention may be arbitrary. For example, the electrolyte solution is impregnated with the positive electrode of the present invention, a separator and a glass filter are laminated on the positive electrode, and a negative electrode is further laminated. Further, the positive electrode, the separator containing the electrolyte, and the negative electrode are sequentially stacked. A form is mentioned.

  The shape of the lithium ion secondary battery according to the present invention may be a known shape. For example, the electrode laminate, the wound body may be a metal case, a resin case, or a laminate film composed of a metal foil such as an aluminum foil and a synthetic resin film. What was sealed is mentioned. Furthermore, examples of the external shape of the lithium ion secondary battery include a cylindrical shape, a square shape, a coin shape, and a sheet shape, but are not limited thereto.

(12) Vehicle A vehicle according to the present invention is equipped with the lithium ion secondary battery according to the present invention.

  Examples of the vehicle include an automobile, a motorbike, a light vehicle, a trolley bus, a railway vehicle, a military vehicle, a construction vehicle, an agricultural vehicle, and an industrial vehicle.

  Hereinafter, an example for explaining the present invention more concretely is provided. In addition, this invention is not limited to a following example in the range which does not deviate from the objective and the main point.

Example A
(Example A-1)
(Example A-1-1)
<Synthesis Example A-1: Synthesis of anthraquinone derivative (A-1-1)>

(Step A-1-1) Synthesis of imine (Ab-1) Anthraquinone (1.0 g, 4.8 mmol) (Aa), 4-bromoaniline (1.65 g, 9.6 mmol) and 1,4-diazabicyclo [ To a solution of 2,2,2] octane (2.7 g, 24.0 mmol) in chloroform (45 ml), titanium chloride (IV) (1.3 ml, 12.0 mmol) in chloroform (5 ml) was added at 50 ° C. for 1 day. Stirred under Ar at 75 ° C. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (chloroform) to give imine (Ab-1) (2.14 g, yield: 86%, spectral data: 1H NMR (500 MHz, CDCl3) d 6.81 ( d, J = 8.6 Hz, 4H), 7.08-7.19 (m, 4H), 7.45-7.52 (m, 5H), 7.61 (br, 1H), 8.30 (br, 2H); 13C-NMR (125 MHz, CDCl3 ) D 121.1, 121.5, 127.0, 128.3, 129.1, 129.4, 130.6, 132.5, 144.1, 150.0, 157.1).

(Step A-2-1) Synthesis of anthraquinone derivative (A-1-1) At room temperature, imine (Ab-1) (1 eq. (Equivalent)), 1,4-benzenediboronic acid (1 eq. Eq)) and base (3.5 eq. (Eq)) in a solution of solvent (0.1 M) was added Pd catalyst (0.04 eq. (Eq)) and the mixture was stirred at 80 ° C. for 18 h. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to obtain an anthraquinone derivative (A-1-1).

(Example A-1-2)
<Synthesis Example A-2: Synthesis of anthraquinone derivative (A-1-2)>

(Step A-1-2) Synthesis of imine (Ab-2) Anthraquinone (1.0 g, 4.8 mmol) (Aa), 4-bromoaniline (1.65 g, 9.6 mmol) and 1,4-diazabicyclo [ To a solution of 2,2,2] octane (2.7 g, 24.0 mmol) in chloroform (45 ml), titanium chloride (IV) (1.3 ml, 12.0 mmol) in chloroform (5 ml) was added at 50 ° C. for 1 day. Stirred under Ar at 75 ° C. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (chloroform) to give imine (Ab-2) (2.14 g, yield: 86%, spectral data: 1H NMR (500 MHz, CDCl3) d 6.81 ( d, J = 8.6 Hz, 4H), 7.08-7.19 (m, 4H), 7.45-7.52 (m, 5H), 7.61 (br, 1H), 8.30 (br, 2H); 13C-NMR (125 MHz, CDCl3 ) D 121.1, 121.5, 127.0, 128.3, 129.1, 129.4, 130.6, 132.5, 144.1, 150.0, 157.1).

(Step A-2-2) Synthesis of anthraquinone derivative (A-1-2) At room temperature, imine (Ab-2) (1 eq. (Equivalent)), 1,4-thiophenediboronic acid (1 eq. Eq)) and base (3.5 eq. (Eq)) in a solution of solvent (0.1 M) was added Pd catalyst (0.04 eq. (Eq)) and the mixture was stirred at 80 ° C. for 18 h. . The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to obtain an anthraquinone derivative (A-1-2).

(Example A-2) <Battery characteristics evaluation>
Example A-2-1
<Preparation of positive electrode for lithium ion secondary battery>
Anthraquinone derivative (A-1-1) (2 mg) synthesized above, Ketjen black (Ketjen Black International Co., Ltd.) (4 mg), conductive binder (TAB-2) (made by Hosen) (4 mg) ) To form a sheet and pressed onto the surface of an aluminum mesh (14φ) (manufactured by Niraco) as a current collector. It was vacuum-dried at 120 ° C. for 6 hours to produce an electrode provided with an anthraquinone derivative (A-1-1).

<Production of coin-type lithium ion secondary battery>
The above electrode is used as a positive electrode of a coin-type lithium ion secondary battery, and ethylene carbonate (EC) / diethyl carbonate (DEC) (EC: DEC) containing 1 M (mol / l) LiPF ₆ (lithium hexafluorophosphate) electrolyte salt. = 1: 1 (volume ratio)) The positive electrode was impregnated with an electrolytic solution (manufactured by Kishida Chemical). Then, a separator (manufactured by Celgard) made of a polypropylene porous film and a glass filter (manufactured by Advantech) were laminated on the positive electrode, and a lithium foil (manufactured by Honjo Metal) that became the negative electrode was further laminated. Thereafter, the outer casing of the coin-type battery is overlaid with an insulating packing disposed around it, and pressurized with a crimping machine, and sealed using anthraquinone derivative (A-1-1) as the positive electrode active material and metallic lithium as the negative electrode active material. Type coin-type lithium ion secondary battery was fabricated.

(Example A-2-2)
<Preparation of positive electrode for lithium ion secondary battery>
The anthraquinone derivative (A-1-2) is prepared in the same manner as in Example A-2-1 except that the anthraquinone derivative (A-1-2) is used instead of the anthraquinone derivative (A-1-1). An electrode was prepared.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example A-2-1, the above electrode was used as the positive electrode of a coin-type battery, an anthraquinone derivative (A-1-2) as the positive electrode active material, and a sealed coin using metal lithium as the negative electrode active material Type lithium ion secondary battery was produced.

(Comparative Example A-1)
<Preparation of positive electrode for lithium ion secondary battery>
An electrode having an anthraquinone polymer was produced in the same manner as in Example A-2-1 except that an anthraquinone polymer was used instead of the anthraquinone derivative (A-1-1).

<Production of coin-type lithium ion secondary battery>
A sealed coin-type lithium ion secondary battery using the above electrode as a positive electrode of a coin-type battery, an anthraquinone polymer as a positive electrode active material, and metallic lithium as a negative electrode active material in exactly the same manner as in Example A-2-1 Was made.

  <Battery characteristics evaluation using coin-type lithium ion secondary batteries produced in Examples A-2-1 to A-2-2 and Comparative Example A-1>

  Using the coin-type lithium ion secondary batteries produced in Examples A-2-1 to A-2-2 and Comparative Example A-1, a charge / discharge test was conducted according to the following method.

  Until the voltage of the coin-type lithium ion secondary battery produced in Examples A-2-1 to A-2-2 reaches 2 volts (V) at a constant current of 0.05 milliampere (mA) in an environment at a temperature of 25 ° C. After discharging for 5 minutes, the battery was charged with a constant current of 0.05 milliampere (mA) until it reached 4 volts (V). With this as one cycle, a charge / discharge test was conducted up to 100 cycles.

  Under the environment of a temperature of 25 ° C., the coin-type lithium ion secondary battery produced in Comparative Example A-1 was discharged at a constant current of 0.05 milliampere (mA) until it reached 2 volts (V).

  <Evaluation results of battery characteristics of coin-type lithium ion secondary batteries produced in Examples A-2-1 to A-2-2 and Comparative Example A-1>

  The results of a charge / discharge test using the coin-type lithium ion secondary battery produced in Examples A-2-1 and A-2-2 are shown in FIG. FIG. 1 shows a charge / discharge curve (charge / discharge capacity value (mAh / g)) vs. 30th cycle. Voltage (V)). Next, the result of the discharge test using the coin-type lithium ion secondary battery produced in Comparative Example A-1 is shown in FIG. FIG. 2 shows a discharge curve (discharge capacity value (mAh / g)) vs.. Voltage (V)). As is clear from FIGS. 1 and 2, the coin-type lithium ion secondary battery produced in Examples A-2-1 and A-2-2 is the same as the coin-type lithium ion secondary battery produced in Comparative Example A-1. The average voltage was lower than that of the battery.

  When the coin-type lithium ion secondary battery produced in Example A-2-1 to A-2-2 was mounted on a vehicle such as an automobile, it was produced in Example A-2-1 to A-2-2. We confirmed that the coin-type lithium ion secondary battery plays an important role as a reliable and stable power source.

Example B
(Example B-1)
(Example B-1-1)
<Synthesis Example B-1: Synthesis of anthraquinone derivative (B-1-A)>

(Step B-1-1) Synthesis of quinone (B-B-A)
To a toluene solution (7 ml) of 2-bromoanthraquinone (200 mg, 0.70 mmol), 4-vinylphenylboronic acid (103 mg, 0.70 mmol) and sodium phosphate tribasic 12 water (927 mg, 2.44 mmol), tetrakis [tri Phenylphosphine] palladium (0) (40 mg, 0.03 mmol) was added at room temperature and the mixture was stirred at 100 ° C. for 1 day. The reaction mixture was cooled to room temperature and evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane: ethyl acetate = 10: 1) to obtain quinone (B-B-A) (175 mg, 81%, spectral data: 1H NMR (500 MHz, CDCl3). d 3.50 (s, 6H), 4.20 (d, J = 5.2 Hz, 2H), 4.79 (t, J = 5.2 Hz, 1H), 7.32 (dd, J = 2.9, 8.6 Hz, 1H), 7.75-7.80 ( m, 3H), 8.27 (d, J = 8.6 Hz, 1H), 8.28-8.31 (m, 2H); 13C-NMR (125 MHz, CDCl3) d 54.4, 68.1, 101.8, 110.7, 121.5, 127.2, 127.4, 129.8, 133.5, 133.6, 133.7, 134.2, 135.5, 163.2, 182.1, 183.1)).

(Step B-2-1) Synthesis of anthraquinone derivative (B-1-A ′) Quinone (BbA) (36 mg, 0.12 mmol), 1,4-diazabicyclo [2,2,2] octane (78 mg 0.70 mmol) and aniline (21 ml, 0.23 mmol) in chlorobenzene solution (1 ml) and titanium chloride (IV) (32 ml, 0.29 mmol) in chlorobenzene solution (1 ml) were added at 90 ° C for 1 day at 130 ° C Ar Stir below. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (hexane: ethyl acetate = 10: 1) to obtain an anthraquinone derivative (B-1-A ′) (46 mg, yield: 86%, spectral data: 1H NMR (500 MHz, CDCl3) d 5.27-5.31 (m, 1H), 5.77-5.82 (m, 1H), 6.64-6.82 (m, 1H), 6.84-7.93 (m, 19H) , 8.34-8.8.42 (m, 2H)).

(Step B-3-1) Synthesis of anthraquinone derivative (B-1-A) To a tetrahydrofuran solution (2 ml) of an anthraquinone derivative (B-1-A ′) (40 mg, 0.09 mmol), 2,2′-azobis ( Isobutyronitrile) (10 mg, 0.06 mmol) was added at room temperature and the mixture was stirred at 70 ° C. for 2 days. The reaction mixture was cooled to room temperature and evaporated under reduced pressure to obtain anthraquinone derivative (B-1-A) (35 mg, yield: 93%).

(Example B-1-2)
<Synthesis Example B-2: Synthesis of anthraquinone derivative (B-1-B)>

(Step B-1-2) Synthesis of quinone (Bbb) 2-bromoanthraquinone (200 mg, 0.70 mmol), 2-allenyl-4,4,5,5-tetramethyl-1,3,2- Tetrakis [triphenylphosphine] palladium (0) (40 mg, 0.03 mmol) was added to a toluene solution (7 ml) of dioxaborolane (107 mg, 0.70 mmol) and sodium phosphate tribasic 12 water (927 mg, 2.44 mmol) at room temperature The mixture was stirred at 100 ° C. for 1 day. The reaction mixture was cooled to room temperature and evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane: ethyl acetate = 10: 1) to obtain quinone (B-B-B) (138 mg, yield: 85%, spectral data: 1H NMR (500 MHz) , CDCl3) d 5.53 (d, J = 10.9 Hz, 1H), 6.04 (d, J = 17.8 Hz, 1H), 6.87 (dd, J = 10.9, 17.8 Hz, 1H), 7.80-7.84 (m, 3H) , 8.28 (d, J = 8.5 Hz, 1H), 8.31-8.33 (m, 3H); 13C-NMR (125 MHz, CDCl3) d 118.4, 124.8, 127.2, 127.3, 127.8, 131.4, 132.6, 133.7, 133.8, 134.0, 134.2, 135.4, 143.3, 182.7, 183.).

(Step B-2-2) Synthesis of anthraquinone derivative (B-1-B ′) Quinone (Bbb) (73 mg, 0.31 mmol), 4,4′-ethylenedianiline (66 mg, 0.31 mmol) and To a chlorobenzene solution (2 ml) of 1,4-diazabicyclo [2,2,2] octane (208 mg, 0.77 mmol) was added titanium chloride (IV) (85 ml, 0.77 mmol) chlorobenzene solution (1 ml) at 90 ° C. Stir for 1 day under Ar at 130 ° C. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to obtain an anthraquinone derivative (B-1-B ′) (22 mg, yield: 17%).

(Step B-3-2) Synthesis of anthraquinone derivative (B-1-B) To a tetrahydrofuran solution (2 ml) of an anthraquinone derivative (B-1-B ′) (12 mg, 0.03 mmol), 2,2′-azobis ( Isobutyronitrile) (10 mg, 0.06 mmol) was added at room temperature and the mixture was stirred at 70 ° C. for 2 days. The reaction mixture was cooled to room temperature and evaporated under reduced pressure to obtain anthraquinone derivative (B-1-B) (11 mg, yield: 93%).

(Example B-2) <Evaluation of battery characteristics>
(Example B-2-1)
<Preparation of positive electrode for lithium ion secondary battery>
Anthraquinone derivative (B-1-A) (2 mg) synthesized above, Ketjen black (Ketjen Black International Co., Ltd.) (4 mg), conductive binder (TAB-2) (made by Hosen) (4 mg) ) To form a sheet and pressed onto the surface of an aluminum mesh (14φ) (manufactured by Niraco) as a current collector. It was vacuum-dried at 120 ° C. for 6 hours to produce an electrode equipped with an anthraquinone derivative (B-1-A).

<Production of coin-type lithium ion secondary battery>
The above electrode is used as a positive electrode of a coin-type lithium ion secondary battery, and ethylene carbonate (EC) / diethyl carbonate (DEC) (EC: DEC) containing 1 M (mol / l) LiPF ₆ (lithium hexafluorophosphate) electrolyte salt. = 1: 1 (volume ratio)) The positive electrode was impregnated with an electrolytic solution (manufactured by Kishida Chemical). Then, a separator (manufactured by Celgard) made of a polypropylene porous film and a glass filter (manufactured by Advantech) were laminated on the positive electrode, and a lithium foil (manufactured by Honjo Metal) that became the negative electrode was laminated. Thereafter, the outer casing of the coin-type battery is overlaid with an insulating packing disposed around it, and pressurized with a crimping machine, and sealed using anthraquinone derivative (B-1-A) as the positive electrode active material and metallic lithium as the negative electrode active material. Type coin-type lithium ion secondary battery was fabricated.

(Example B-2-2)
<Preparation of positive electrode for lithium ion secondary battery>
The anthraquinone derivative (B-1-B) is prepared in the same manner as in Example B-2-1 except that the anthraquinone derivative (B-1-B) is used instead of the anthraquinone derivative (B-1-A). An electrode was prepared.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example B-2-1, the above electrode was used as a positive electrode of a coin-type battery, an anthraquinone derivative (B-1-B) as a positive electrode active material, and a sealed coin using metallic lithium as a negative electrode active material Type lithium ion secondary battery was produced.

(Example B-2-3)
<Preparation of positive electrode for lithium ion secondary battery>
The anthraquinone derivative (B-1-C) is prepared in the same manner as in Example B-2-1 except that the anthraquinone derivative (B-1-C) is used instead of the anthraquinone derivative (B-1-A). An electrode was prepared.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example B-2-1, the above electrode was used as a positive electrode of a coin-type battery, an anthraquinone derivative (B-1-C) as a positive electrode active material, and a sealed coin using metallic lithium as a negative electrode active material Type lithium ion secondary battery was produced.

(Example B-2-4)
<Preparation of positive electrode for lithium ion secondary battery>
The anthraquinone derivative (B-1-D) is prepared in the same manner as in Example B-2-1 except that the anthraquinone derivative (B-1-D) is used instead of the anthraquinone derivative (B-1-A). An electrode was prepared.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example B-2-1, the above electrode was used as a positive electrode of a coin-type battery, an anthraquinone derivative (B-1-D) as a positive electrode active material, and a sealed coin using metallic lithium as a negative electrode active material Type lithium ion secondary battery was produced.

(Example B-2-5)
<Preparation of positive electrode for lithium ion secondary battery>
The anthraquinone derivative (B-1-E) is prepared in the same manner as in Example B-2-1 except that the anthraquinone derivative (B-1-E) is used instead of the anthraquinone derivative (B-1-A). An electrode was prepared.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example B-2-1, the above electrode was used as a positive electrode of a coin-type battery, an anthraquinone derivative (B-1-E) as a positive electrode active material, and a sealed coin using metal lithium as a negative electrode active material Type lithium ion secondary battery was produced.

(Comparative Example B-1)
<Preparation of positive electrode for lithium ion secondary battery>
An electrode having an anthraquinone polymer was produced in the same manner as in Example B-2-1 except that an anthraquinone polymer was used instead of the anthraquinone derivative (B-1-A).

<Production of coin-type lithium ion secondary battery>
A sealed coin-type lithium ion secondary battery using the above electrode as a positive electrode of a coin-type battery, an anthraquinone polymer as a positive electrode active material, and metallic lithium as a negative electrode active material in exactly the same manner as in Example B-2-1 Was made.

  <Battery characteristics evaluation using coin-type lithium ion secondary batteries produced in Examples B-2-1 to B-2-5 and Comparative Example B-1>

  Using the coin-type lithium ion secondary batteries produced in Examples B-2-1 to B-2-5 and Comparative Example B-1, charge / discharge or discharge tests were performed according to the following method.

  In an environment at a temperature of 25 ° C., until the coin-type lithium ion secondary battery produced in Examples B-2-1 to B-2-5 reaches 2 volts (V) at a constant current of 0.05 milliampere (mA). After discharging for 5 minutes, the battery was charged with a constant current of 0.05 milliampere (mA) until it reached 4 volts (V). With this as one cycle, a charge / discharge test was conducted up to 100 cycles.

  Under an environment of a temperature of 25 ° C., the coin-type lithium ion secondary battery produced in Comparative Example B-1 was discharged at a constant current of 0.05 milliampere (mA) until it reached 2 volts (V).

  <Evaluation results of battery characteristics of coin-type lithium ion secondary batteries produced in Examples B-2-1 to B-2-5 and Comparative Example B-1>

  The result of the charge / discharge test using the coin-type lithium ion secondary battery produced in Example B-2-2 is shown in FIG. FIG. 3 shows charge / discharge curves (charge / discharge capacity value (mAh / g)) vs. 1st cycle and 20th cycle. Voltage (V)). Next, the result of the discharge test using the coin-type lithium ion secondary battery produced in Comparative Example B-1 is shown in FIG. The result of the charging / discharging test using the coin-type lithium ion secondary battery produced in Examples B-2-1 to B-2-5 and Comparative Example B-1 is shown in FIG. FIG. 5 shows a coin-type lithium ion secondary battery using the anthraquinone derivative (B-1-A to B-1-E) of the present invention and a coin-type lithium ion secondary battery using the anthraquinone polymer of the comparative example. This is a result of the battery capacity at the 100th cycle. The battery capacity value of the coin-type lithium ion secondary battery using the anthraquinone derivative (B-1-A to B-1-E) of the present invention is the battery capacity of the coin-type lithium ion secondary battery using the anthraquinone polymer. It is a ratio value when the value is 1.0.

  As apparent from FIGS. 3 and 4, the coin-type lithium ion secondary battery produced in Example B-2-2 has an average voltage higher than that of the coin-type lithium ion secondary battery produced in Comparative Example B-1. Showed low characteristics. Also, referring to FIG. 5, the battery capacity value of the coin-type lithium ion secondary battery produced in Example B-2-5 shows the highest value, and the increase in capacity and extension of life (cycle suitability) are shown. It was confirmed that both were achieved.

  When the coin-type lithium ion secondary battery prepared in Example B-2-1 to B-2-5 was mounted on a vehicle such as an automobile, it was manufactured in Example B-2-1 to B-2-5. We confirmed that the coin-type lithium ion secondary battery plays an important role as a reliable and stable power source.

Example C
(Example C-1)
(Example C-1-1)
<Synthesis Example C-1: Synthesis of anthraquinone derivative (C-1-A)>

(Step C-1-1) Synthesis of 2-methoxymethylanthraquinone (CbA)
Sodium hydride (290 mg, 6.69 mmol) was added to a dimethylformamide solution (40 ml) of 2-hydroxyanthraquinone (Ca) (1.0 g, 4.46 mmol) at 0 ° C. and stirred for 10 minutes. After stirring, methoxymethyl chloride (0.4 ml, 5.35 mmol) was added to the reaction mixture at 0 ° C., and the mixture was stirred at 70 ° C. for 1 day. The reaction mixture was cooled to room temperature and evaporated under reduced pressure. The residue was extracted three times with chloroform, dried over MgSO4 and filtered. The filtrate was evaporated under reduced pressure and the mixture was purified by column chromatography (silica gel, chloroform) to give 2-methoxymethylanthraquinone (b-A) (1.1 g, 93%, spectral data:%). ¹ H NMR (500 MHz, DMSO-d6) δ3.44 (s, 3H), 5.43 (s, 2H), 7.52 (dd, J = 2.9, 8.6 Hz, 1H), 7.74 (d, J = 2.3 Hz , 1H), 7.0-7.95 (m, 2H), 8.20 (t, J = 6.9 Hz, 1H), 8.20 (d, J = 6.9 Hz, 2H); ¹³ C-NMR (125 MHz, DMSO-d6) δ56 .0, 93.9, 112.2, 112.2, 126.6, 126.7, 127.1, 129.4, 133.0, 134.2, 134.5, 134.9, 161.4, 181.3, 182.2; Elem. Anal.Calcd for C ₁₆ H ₁₂ O ₄ : C, 71.64; H, 4.51. Found: C, 71.8; H, 4.8.).

  (Step C-2-1) Synthesis of MOM (methoxymethyl) anthraquinone derivative (C-1-A)

  Chlorobenzene of 2-methoxymethylanthraquinone (CbA) (300 mg, 1.12 mmol), ethylenedianiline (237 mg, 1.12 mmol) and 1,4-diazabicyclo [2,2,2] octane (753 mg, 6.71 mmol) To the (10 ml) solution was added titanium (IV) chloride (0.18 ml, 1.68 mmol) chlorobenzene solution (2 ml) at 90 ° C. and stirred for 1 day under Ar at 125 ° C. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to obtain MOM (methoxymethylanthraquinone derivative (C-1-A) (291 mg, yield: 58, MW = 8800, Mw / Mn = 1.437). .

(Example C-1-2)
<Synthesis Example C-2: Synthesis of di-MOM (methoxymethyl) anthraquinone derivative (C-2-A)>

(Step C-3-1) Synthesis of 2,6-dimethoxymethylanthraquinone (CdA)
Sodium hydride (450 mg, 10.4 mmol) was added at 0 ° C. to a dimethylformamide solution (40 ml) of 2,6-dihydroxyanthraquinone (Cc) (1.0 g, 4.16 mmol) and stirred for 10 minutes. After stirring, methoxymethyl chloride (0.78 ml, 10.4 mmol) was added to the reaction mixture at 0 ° C., and the mixture was stirred at 70 ° C. for 1 day. The reaction mixture was cooled to room temperature and evaporated under reduced pressure. The residue was extracted three times with chloroform, dried over MgSO4 and filtered. The filtrate was evaporated under reduced pressure and the mixture was purified by column chromatography (silica gel, chloroform) to give 2,6-dimethoxymethylanthraquinone (CdA) (1.5 g, appropriate amount, spectral data). : 1H NMR (500 MHz, CDCl3) d 3.52 (s, 6H), 5.34 (s, 4H), 7.37 (dd, J = 2.9, 8.6 Hz, 2H), 7.87 (d, J = 2.9 Hz, 2H), 8.25 (d, J = 8.6 Hz, 2H)).

  (Step C-4-1) Synthesis of di-MOM (methoxymethyl) anthraquinone derivative (C-2-A)

  2,6-dimethoxymethylanthraquinone (CdA) (250 mg, 0.76 mmol), ethylenedianiline (162 mg, 0.76 mmol) and 1,4-diazabicyclo [2,2,2] octane (510 mg, 4.57 mmol) To a chlorobenzene (5 ml) solution was added titanium (IV) chloride (0.13 ml, 1.14 mmol) chlorobenzene solution (2 ml) at 90 ° C. and stirred for 1 day under Ar at 130 ° C. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to obtain di-MOM (methoxymethyl) anthraquinone derivative (C-2-A) (68 mg, yield: 18%, MW = 34340, Mw / Mn = 1.244).

(Example C-1-3)
<Synthesis Example C-3: Synthesis of di-PMB (p-methoxybenzyl) anthraquinone derivative (C-2-K)>

  (Step C-3-2) Synthesis of 2,6-di- (p-methoxybenzyl) anthraquinone (CdK)

  Sodium hydride (110 mg, 2.75 mmol) was added to a dimethylformamide solution (12 ml) of 2,6-dihydroxyanthraquinone (Cc) (300 mg, 1.25 mmol) at 0 ° C. and stirred for 10 minutes. After stirring, p-methoxybenzyl chloride (0.37 ml, 2.75 mmol) was added to the reaction mixture at 0 ° C., and the mixture was stirred at 70 ° C. for 1 day. The reaction mixture was cooled to room temperature and evaporated under reduced pressure. The residue was extracted three times with chloroform, dried over MgSO4 and filtered. The filtrate was evaporated under reduced pressure to give 2,6-di- (p-methoxybenzyl) anthraquinone (dK) (600 mg, appropriate amount, spectral data: 13C-NMR (125 MHz, DMSO-d6) d 56.0, 93.9, 112.2, 112.2, 126.6, 126.7, 127.1, 129.4, 133.0, 134.2, 134.5, 134.9, 161.4, 181.3, 182.2).

  (Step C-4-2) Synthesis of di-PMB (p-methoxybenzyl) anthraquinone derivative (C-2-K)

  2,6-di- (p-methoxybenzyl) anthraquinone (CdK) (100 mg, 0.21 mmol), ethylenedianiline (44 mg, 0.21 mmol) and 1,4-diazabicyclo [2,2,2] octane To a solution of (140 mg, 1.25 mmol) in chlorobenzene (1 ml) was added titanium chloride (IV) (35 ml, 0.31 mmol) chlorobenzene solution (1 ml) at 90 ° C. and stirred for 1 day under 130 ° C. Ar. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to give di-PMB (p-methoxybenzyl) anthraquinone derivative (C-2-K) (21 mg, 18% yield, MW = 9870, Mw /Mn=1.178).

(Example C-2) <Battery characteristics evaluation>
(Example C-2-1)
<Preparation of positive electrode for lithium ion secondary battery>
Anthraquinone derivative (C-1-A) (2 mg) synthesized in Example C-1-1 above, Ketjen Black (Ketjen Black International) (4 mg), and conductive binder (TAB-2) (Made by Hosen) (4 mg) was mixed to form a sheet, which was crimped onto the surface of an aluminum mesh (14φ) (made by Niraco) as a current collector. It was vacuum-dried at 120 ° C. for 6 hours to produce an electrode equipped with an anthraquinone derivative (C-1-A).

<Production of coin-type lithium ion secondary battery>
The above electrode is used as a positive electrode of a coin-type lithium ion secondary battery, and ethylene carbonate (EC) / diethyl carbonate (DEC) (EC: DEC) containing 1 M (mol / l) LiPF ₆ (lithium hexafluorophosphate) electrolyte salt. = 1: 1 (volume ratio)) The positive electrode was impregnated with an electrolytic solution (manufactured by Kishida Chemical). Then, a separator (manufactured by Celgard) made of a polypropylene porous film and a glass filter (manufactured by Advantech) were laminated on the positive electrode, and a lithium foil (manufactured by Honjo Metal) that became the negative electrode was further laminated. Thereafter, the outer casing of the coin-type battery is overlaid with an insulating packing disposed around it, and pressurized with a crimping machine, and sealed using anthraquinone derivative (C-1-A) as the positive electrode active material and metallic lithium as the negative electrode active material. Type coin-type lithium ion secondary battery was fabricated.

(Example C-2-2)
<Preparation of positive electrode for lithium ion secondary battery>
A method similar to Example C-2-1 except that the anthraquinone derivative (C-2-A) synthesized in Example C-1-2 was used instead of the anthraquinone derivative (C-1-A). The electrode provided with the anthraquinone derivative (C-2-A) was prepared.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example C-2-1, the above electrode was used as a positive electrode of a coin-type battery, an anthraquinone derivative (C-2-A) as a positive electrode active material, and a sealed coin using metallic lithium as a negative electrode active material Type lithium ion secondary battery was produced.

(Example C-2-3)
<Preparation of positive electrode for lithium ion secondary battery>
A method similar to Example C-2-1 except that the anthraquinone derivative (C-2-K) synthesized in Example C-1-3 was used instead of the anthraquinone derivative (C-1-A). An electrode equipped with an anthraquinone derivative (C-2-K) was prepared.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example C-2-1, the above electrode was used as a positive electrode of a coin-type battery, an anthraquinone derivative (C-2-K) as a positive electrode active material, and a sealed coin using metal lithium as a negative electrode active material Type lithium ion secondary battery was produced.

(Example C-2-4)
<Preparation of positive electrode for lithium ion secondary battery>
Instead of the anthraquinone derivative (C-1-A), Example C-2-B was used except that the anthraquinone derivative (C-1-B) synthesized with reference to the synthesis method of Example C-1-1 was used. The electrode provided with the anthraquinone derivative (C-1-B) by the method similar to 1 was produced.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example C-2-1, the above electrode was used as a positive electrode of a coin-type battery, an anthraquinone derivative (C-1-B) as a positive electrode active material, and a sealed coin using metal lithium as a negative electrode active material Type lithium ion secondary battery was produced.

(Example C-2-5)
<Preparation of positive electrode for lithium ion secondary battery>
Instead of the anthraquinone derivative (C-1-A), Example C-2-C was used except that the anthraquinone derivative (C-1-C) synthesized with reference to the synthesis method of Example C-1-1 was used. The electrode provided with the anthraquinone derivative (C-1-C) by the method similar to 1 was produced.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example C-2-1, the above electrode was used as a positive electrode of a coin-type battery, an anthraquinone derivative (C-1-C) as a positive electrode active material, and a sealed coin using metallic lithium as a negative electrode active material Type lithium ion secondary battery was produced.

(Example C-2-6)
<Preparation of positive electrode for lithium ion secondary battery>
Instead of the anthraquinone derivative (C-1-A), an example C-2-D was used except that the anthraquinone derivative (C-1-D) synthesized with reference to the synthesis method of Example C-1-1 was used. The electrode provided with the anthraquinone derivative (C-1-D) by the method similar to 1 was produced.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example C-2-1, the above electrode was used as a positive electrode of a coin-type battery, an anthraquinone derivative (C-1-D) as a positive electrode active material, and a sealed coin using metal lithium as a negative electrode active material Type lithium ion secondary battery was produced.

(Example C-2-7)
<Preparation of positive electrode for lithium ion secondary battery>
Example C-2-E was used except that the anthraquinone derivative (C-1-E) synthesized with reference to the synthesis method of Example C-1-1 was used instead of the anthraquinone derivative (C-1-A). The electrode provided with the anthraquinone derivative (C-1-E) by the method similar to 1 was produced.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example C-2-1, the above electrode was used as the positive electrode of a coin-type battery, an anthraquinone derivative (C-1-E) as the positive electrode active material, and a sealed coin using metal lithium as the negative electrode active material Type lithium ion secondary battery was produced.

(Example C-2-8)
<Preparation of positive electrode for lithium ion secondary battery>
Instead of the anthraquinone derivative (C-1-A), an example C-2-F was used except that the anthraquinone derivative (C-1-F) synthesized with reference to the synthesis method of Example C-1-1 was used. 1 was used to prepare an electrode provided with an anthraquinone derivative (C-1-F).

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example C-2-1, the above electrode was used as the positive electrode of a coin-type battery, an anthraquinone derivative (C-1-F) as the positive electrode active material, and a sealed coin using metal lithium as the negative electrode active material Type lithium ion secondary battery was produced.

(Example C-2-9)
<Preparation of positive electrode for lithium ion secondary battery>
Instead of the anthraquinone derivative (C-1-A), an example C-2-G was used except that the anthraquinone derivative (C-1-G) synthesized with reference to the synthesis method of Example C-1-1 was used. The electrode provided with the anthraquinone derivative (C-1-G) by the method similar to 1 was produced.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example C-2-1, the above electrode was used as a positive electrode of a coin-type battery, an anthraquinone derivative (C-1-G) as a positive electrode active material, and a sealed coin using metal lithium as a negative electrode active material Type lithium ion secondary battery was produced.

(Example C-2-10)
<Preparation of positive electrode for lithium ion secondary battery>
Instead of the anthraquinone derivative (C-1-A), an example C-2-H was used except that the anthraquinone derivative (C-1-H) synthesized with reference to the synthesis method of Example C-1-1 was used. The electrode provided with the anthraquinone derivative (C-1-H) by the method similar to 1 was produced.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example C-2-1, the above electrode was used as a positive electrode of a coin-type battery, an anthraquinone derivative (C-1-H) as a positive electrode active material, and a sealed coin using metal lithium as a negative electrode active material Type lithium ion secondary battery was produced.

(Example C-2-11)
<Preparation of positive electrode for lithium ion secondary battery>
Instead of the anthraquinone derivative (C-1-A), Example C-2-I was used except that the anthraquinone derivative (C-1-I) synthesized with reference to the synthesis method of Example C-1-1 was used. The electrode provided with the anthraquinone derivative (C-1-I) by the method similar to 1 was produced.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example C-2-1, the above electrode was used as a positive electrode of a coin-type battery, an anthraquinone derivative (C-1-I) as a positive electrode active material, and a sealed coin using metallic lithium as a negative electrode active material Type lithium ion secondary battery was produced.

(Example C-2-12)
<Preparation of positive electrode for lithium ion secondary battery>
Instead of the anthraquinone derivative (C-1-A), an example C-2-J was used except that the anthraquinone derivative (C-1-J) synthesized with reference to the synthesis method of Example C-1-1 was used. The electrode provided with the anthraquinone derivative (C-1-J) by the method similar to 1 was produced.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example C-2-1, the above electrode was used as a positive electrode of a coin-type battery, an anthraquinone derivative (C-1-J) as a positive electrode active material, and a sealed coin using metallic lithium as a negative electrode active material Type lithium ion secondary battery was produced.

(Comparative Example C-1)
<Preparation of positive electrode for lithium ion secondary battery>
An electrode having an anthraquinone polymer was produced in the same manner as in Example 2-1, except that an anthraquinone polymer was used instead of the anthraquinone derivative (1-A).

<Production of coin-type lithium ion secondary battery>
A sealed coin-type lithium ion secondary battery using the above electrode as a positive electrode of a coin-type battery, an anthraquinone polymer as a positive electrode active material, and metallic lithium as a negative electrode active material in exactly the same manner as in Example C-2-1 Was made.

  <Battery characteristics evaluation using coin-type lithium ion secondary batteries produced in Examples C-2-1 to C-2-12 and Comparative Example C-1>

  Using the coin-type lithium ion secondary battery produced in Examples C-2-1 to C-2-12 and Comparative Example C-1, a discharge test or a charge / discharge test was performed according to the following method.

  Under an environment of a temperature of 25 ° C., the coin-type lithium ion secondary batteries produced in Examples C-2-1 to C-2-12 and Comparative Example C-1 were 2 at a constant current of 0.05 milliampere (mA). The battery was discharged until it reached volts (V).

  The coin-type lithium ion secondary battery produced in Examples C-2-1, C-2-5, and C-2-8 under the temperature of 25 ° C. is 2 volts at a constant current of 0.05 milliampere (mA). The battery was discharged until it reached (V), and after 5 minutes of rest, it was charged with a constant current of 0.05 milliampere (mA) until it reached 4 volts (V). With this as one cycle, a charge / discharge test was conducted up to 100 cycles.

  <Evaluation results of battery characteristics of coin-type lithium ion secondary batteries produced in Examples C-2-1 to C-2-12 and Comparative Example C-1>

  The result of the discharge test using the coin-type lithium ion secondary battery produced in Examples C-2-1 to C-2-3 is shown in FIG. FIG. 6 shows a discharge curve (discharge capacity value (mAh / g)) vs. Voltage (V)). FIG. 7 shows the results of a discharge test using the coin-type lithium ion secondary batteries produced in Examples C-2-1 and C-2-4 to C-2-8. FIG. 7 shows a discharge curve (discharge capacity value (mAh / g)) vs. Voltage (V)). FIG. 8 shows the results of a discharge test using the coin-type lithium ion secondary batteries produced in Examples C-2-9 to C-2-12. FIG. 8 shows a discharge curve (discharge capacity value (mAh / g)) vs.. Voltage (V)). The result of the discharge test using the coin-type lithium ion secondary battery produced in Comparative Example C-1 is shown in FIG. FIG. 9 shows a discharge curve (discharge capacity value (mAh / g)) vs.. Voltage (V)). FIG. 10 shows the results of a charge / discharge test using the coin-type lithium ion secondary batteries produced in Examples C-2-1, C-2-5, C-2-8 and Comparative Example C-1. FIG. 10 shows a coin-type lithium using a coin-type lithium ion secondary battery using the anthraquinone derivatives (C-1-A, C-1-C and C-1-F) of the present invention and an anthraquinone polymer of a comparative example. It is a result of the battery capacity of the 100th cycle with an ion secondary battery. The value of the battery capacity of the coin-type lithium ion secondary battery using the anthraquinone derivatives (C-1-A, C-1-C and C-1-F) of the present invention is the same as that of the coin using the anthraquinone polymer of the comparative example. It is a ratio value when the battery capacity value of the lithium ion secondary battery is 1.0.

  As is apparent from FIGS. 6 and 9, the battery capacity of the coin-type lithium ion secondary battery using the anthraquinone derivative (C-1-A) of Example C-2-1 increased, and Comparative Example C-1 The value was 1.3 times the battery capacity of the coin-type lithium ion secondary battery using the anthraquinone polymer. The battery capacity of the coin-type lithium ion secondary battery using the anthraquinone derivatives (C-2-A and C-2-K) of Examples C-2-2 and C-2-3 is the same as that of Comparative Example C-1. The value was almost the same as the battery capacity of a coin-type lithium ion secondary battery using an anthraquinone polymer.

  As is clear from FIGS. 7, 8 and 9, the battery capacity of the coin-type lithium ion secondary battery using the anthraquinone derivative (C-1-I) of Example C-2-11 is as shown in Example C- The battery capacity of the coin-type lithium ion secondary battery using the 2-1 anthraquinone derivative (C-1-A) was almost the same as the battery capacity and was very good. Also, coin-type lithium ions using the anthraquinone derivatives (C-1-B to C-1-H, C-1-J) of Examples C-2-4 to C-2-10 and C-2-12 The battery capacity of the secondary battery was also good, almost the same value as the battery capacity of the coin-type lithium ion secondary battery using the anthraquinone polymer of Comparative Example C-1.

  Referring to FIG. 10, the battery capacity value of the coin-type lithium ion secondary battery using the anthraquinone derivative (C-1-A) of Example C-2-1 shows the highest value. It was confirmed that both lifespan (cycle suitability) was achieved at the same time. Moreover, the battery capacity value of the coin-type lithium ion secondary battery using the anthraquinone derivatives (C-1-C and C-1-F) of Examples C-2-5 and C-2-8 is Comparative Example C- The battery capacity of the coin-type lithium ion secondary battery using 1 anthraquinone polymer was slightly higher to slightly lower level, and it was confirmed that there was no problem in cycle suitability.

  When the coin-type lithium ion secondary battery prepared in Example C-2-1 to C-2-12 was mounted on a vehicle such as an automobile, it was manufactured in Example C-2-1 to C-2-12. We confirmed that the coin-type lithium ion secondary battery plays an important role as a reliable and stable power source.

Example D
(Example D-1)
(Example D-1-1)
<Synthesis Example D-1: Synthesis of anthraquinone derivative (D-1-A)>

Synthesis of quinone (DbA)
To a solution of 2-hydroxyanthraquinone (1.0 g, 4.46 mmol) in dimethylformamide (40 ml) was added sodium hydride (290 mg, 6.69 mmol) at 0 ° C. and stirred for 10 minutes. After stirring, methoxymethyl chloride (0.4 ml, 5.35 mmol) was added to the reaction mixture at 0 ° C., and the mixture was stirred at 70 ° C. for 1 day. The reaction mixture was cooled to room temperature and evaporated under reduced pressure. The residue was extracted 3 times with chloroform, dried over MgSO ₄ and filtered. The filtrate was evaporated under reduced pressure and the mixture was purified by column chromatography (silica gel, chloroform) to give quinone (b-A) (1.1 g, yield: 93%, spectral data: ¹ H NMR). (500 MHz, DMSO-d6) δ 3.44 (s, 3H), 5.43 (s, 2H), 7.52 (dd, J = 2.9, 8.6 Hz, 1H), 7.74 (d, J = 2.3 Hz, 1H), 7.0 -7.95 (m, 2H), 8.20 (t, J = 6.9 Hz, 1H), 8.20 (d, J = 6.9 Hz, 2H); ¹³ C-NMR (125 MHz, DMSO-d6) δ 56.0, 93.9, 112.2 , 112.2, 126.6, 126.7, 127.1, 129.4, 133.0, 134.2, 134.5, 134.9, 161.4, 181.3, 182.2; Elem. Anal. Calcd for C ₁₆ H ₁₂ O ₄ : C, 71.64; H, 4.51. Found: C, 71.8; H, 4.8).

(Step D-1-1) Synthesis of anthraquinone derivative (D-1-A) Anthraquinone (100 mg, 0.48 mmol), quinone (DbA) (29 mg, 0.10 mmol), 4,4′-ethylenedianiline (122 mg, 0.58 mmol) and 1,4-diazabicyclo [2,2,2] octane (323 mg, 2.88 mmol) in chlorobenzene (3 ml) to titanium (IV) chloride (0.16 ml, 1.44 mmol) in chlorobenzene (2 ml) ) The solution was added at 90 ° C. and stirred for 1 day under Ar at 125 ° C. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to obtain an anthraquinone derivative (D-1-A) (Mw = 3200; Mw / Mn = 1.32. Elem. Anal. Calcd for C ₃₆ H ₂₈ N ₂ O: C, 85.69; H, 5.59; N, 5.55).

(Example D-1-2)
<Synthesis Example D-2: Synthesis of anthraquinone derivative (D-1-B)>

Synthesis of quinone (Db-B)
To a solution of 2-hydroxyanthraquinone (500 mg, 2.23 mmol) in dimethylformamide (22 ml), sodium hydride (146 mg, 3.35 mmol) was added at 0 ° C. and stirred for 10 minutes. After stirring, diethyl chloroacetal (0.51 ml, 3.35 mmol) was added to the reaction mixture at 0 ° C., and the mixture was stirred at 70 ° C. for 1 day. The reaction mixture was cooled to room temperature and evaporated under reduced pressure. The residue was extracted 3 times with chloroform, dried over MgSO ₄ and filtered. The filtrate was evaporated under reduced pressure and the mixture was purified by column chromatography (silica gel, chloroform) to give quinone (b-B) (487 mg, yield: 64%, spectral data: ¹ H NMR ( 500 MHz, CDCl ₃ ) δ 1.28 (t, J = 6.9 Hz, 6H), 3.67 (dq, J = 9.2, 6.2 Hz, 2H), 3.81 (dq, J = 9.8, 6.9 Hz, 2H), 4.20 (d , J = 5.2 Hz, 2H), 4.90 (t, J = 5.2 Hz, 1H), 7.31 (dd, J = 2.9, 8.6 Hz, 1H), 7.75 (d, J = 2.0 Hz, 1H), 7.77-7.82 (M, 2H), 8.27 (d, J = 8.0 Hz, 1H), 8.29-8.31 (m, 2H); ¹³ C-NMR (125 MHz, CDCl ₃ ) d 15.3, 29.7, 62.9, 69.0, 100.2, 110.9 , 121.4, 127.1, 127.3, 129.8, 133.5, 133.6, 133.7, 134.2, 135.5, 163.3, 182.2, 183.1; Elem. Anal. Calcd for C ₂₀ H ₂₀ O ₅ : C, 70.57; H, 5.92; O, 23.5. Found: C, 71.7; H, 6.6).

(Step D-1-2) Synthesis of anthraquinone derivative (D-1-B) Anthraquinone (150 mg, 0.72 mmol), quinone (Dbb) (49 mg, 0.14 mmol), 4,4′-ethylenedianiline (184 mg, 0.86 mmol) and 1,4-diazabicyclo [2,2,2] octane (565 mg, 5.04 mmol) in chlorobenzene (5 ml) to a solution of titanium (IV) chloride (0.16 ml, 1.44 mmol) in chlorobenzene (2 ml ) The solution was added at 90 ° C. and stirred for 2 days under Ar at 130 ° C. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to obtain anthraquinone derivative (D-1-B) (251 mg, yield: 72%, Mw = 9600; Mw / Mn = 1.63. Elem. Anal). Calcd for C ₁₇₄ H ₁₃₂ N ₁₂ O ₃ : C, 85.69; H, 5.46; N, 6.89. Found: C, 79.3; H, 5.3; N, 6.3.).

(Example D-1-3)
<Synthesis Example D-3: Synthesis of anthraquinone derivative (D-1-C)>

Synthesis of quinone (DbC)
To a solution of 2-hydroxyanthraquinone (500 mg, 2.23 mmol) in dimethylformamide (22 ml), sodium hydride (146 mg, 3.35 mmol) was added at 0 ° C. and stirred for 10 minutes. After stirring, 2,2-dimethoxyethyl bromide (0.4 ml, 3.35 mmol) was added to the reaction mixture at 0 ° C., and the mixture was stirred at 130 ° C. for 1 day. The reaction mixture was cooled to room temperature and evaporated under reduced pressure. The residue was extracted 3 times with chloroform, dried over MgSO ₄ and filtered. The filtrate was evaporated under reduced pressure and the mixture was purified by column chromatography (silica gel, chloroform) to give quinone (Db-C) (532 mg, yield: 76%, spectral data: ¹ H NMR (500 MHz, CDCl ₃ ) δ 3.50 (s, 6H), 4.20 (d, J = 5.2 Hz, 2H), 4.79 (t, J = 5.2 Hz, 1H), 7.32 (dd, J = 2.9, 8.6 Hz , 1H), 7.75-7.80 (m, 3H), 8.27 (d, J = 8.6 Hz, 1H), 8.28-8.31 (m, 2H); ¹³ C-NMR (125 MHz, CDCl ₃ ) δ 54.4, 68.1, 101.8, 110.7, 121.5, 127.2, 127.4, 129.8, 133.5, 133.6, 133.7, 134.2, 135.5, 163.2, 182.1, 183.1; Elem. Anal. Calcd for C ₁₈ H ₁₆ O ₅ : C, 69.22; H, 5.16. : C, 69.0; H, 5.1).

(Step D-1-3) Synthesis of anthraquinone derivative (D-1-C) Anthraquinone (100 mg, 0.48 mmol), quinone (DbC) (30 mg, 0.10 mmol), 4,4′-ethylenedianiline (122 mg, 0.58 mmol) and 1,4-diazabicyclo [2,2,2] octane (323 mg, 2.88 mmol) in chlorobenzene (2 ml) to a solution of titanium (IV) chloride (0.1 ml, 0.96 mmol) in chlorobenzene (2 ml ) The solution was added at 90 ° C. and stirred for 1 day under Ar at 130 ° C. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to give the anthraquinone derivative (D-1-C) (162 mg, yield: 70%, Mw = 7800; Mw / Mn = 1.57. Elem. Anal Calcd for C ₁₇₂ H ₁₂₈ N ₁₂ O ₃ : C, 85.69; H, 5.35; N, 6.97. Found: C, 80.4; H, 5.2; N, 6.4).

(Example D-1-4)
<Synthesis Example D-4: Synthesis of anthraquinone derivative (D-1-D)>

Synthesis of quinone (DbD)
To a solution of 2-hydroxyanthraquinone (500 mg, 2.23 mmol) in dimethylformamide (22 ml), sodium hydride (146 mg, 3.35 mmol) was added at 0 ° C. and stirred for 10 minutes. After stirring, 2- (2-bromoethyl) -1,3-dioxane (0.45 ml, 3.35 mmol) was added to the reaction mixture at 0 ° C., and the mixture was stirred at 130 ° C. for 1 day. The reaction mixture was cooled to room temperature and evaporated under reduced pressure. The residue was extracted 3 times with chloroform, dried over MgSO ₄ and filtered. The filtrate was evaporated under reduced pressure and the mixture was purified by column chromatography (silica gel, chloroform) to give quinone (DbD) (532 mg, yield: 76%, spectral data: ¹ H NMR (500 MHz, CDCl ₃ ) δ 1.37-1.40 (m, 1H), 2.08-2.17 (m, 3H), 3.81 (dt, J = 2.3, 12.6 Hz, 2H), 4.14 (dd, J = 5.2, 10.3 Hz, 2H), 4.27 (dd, J = 6.3, 6.3 Hz, 2H), 4.81 (t, J = 5.2 Hz, 1H), 7.27 (dd, J = 2.3, 8.6 Hz, 1H), 7.74-7.81 (m , 3H), 8.25 (d, J = 8.6 Hz, 1H), 8.28-8.31 (m, 2H); Elem. Anal. Calcd for C ₂₀ H ₁₈ O ₅ : C, 70.99; H, 5.36. Found: C, 71.1; H, 5.4).

(Step D-1-4) Synthesis of anthraquinone derivative (D-1-D) Anthraquinone (150 mg, 0.72 mmol), quinone (DbD) (49 mg, 0.14 mmol), 4,4′-ethylenedianiline (184 mg, 0.86 mmol) and 1,4-diazabicyclo [2,2,2] octane (565 mg, 5.04 mmol) in chlorobenzene (5 ml) to a solution of titanium (IV) chloride (0.16 ml, 1.44 mmol) in chlorobenzene (2 ml ) The solution was added at 90 ° C. and stirred for 1 day under Ar at 130 ° C. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to give the anthraquinone derivative (D-1-D) (256 mg, yield: 73%, Mw = 9300; Mw / Mn = 1.53. Elem. Anal Calcd for C ₁₇₃ H ₁₂₈ N ₁₂ O ₃ : C, 85.76; H, 5.38; N, 6.90. Found: C, 80.8; H, 5.2; N, 6.3).

(Example D-1-5)
<Synthesis Example D-5: Synthesis of anthraquinone derivative (D-1-E)>

Synthesis of quinone (DbE)
To a solution of 2-hydroxyanthraquinone (500 mg, 2.23 mmol) in dimethylformamide (22 ml), sodium hydride (146 mg, 3.35 mmol) was added at 0 ° C. and stirred for 10 minutes. After stirring, 2-bromomethyl-1,3-dioxolane (0.35 ml, 3.35 mmol) was added to the reaction mixture at 0 ° C., and the mixture was stirred at 130 ° C. for 1 day. The reaction mixture was cooled to room temperature and evaporated under reduced pressure. The residue was extracted 3 times with chloroform, dried over MgSO ₄ and filtered. The filtrate was evaporated under reduced pressure and the mixture was purified by column chromatography (silica gel, chloroform) to give quinone (Db-E) (560 mg, yield: 81%, spectral data: ¹ H NMR (500 MHz, CDCl ₃ ) δ 3.99-4.04 (m, 2H), 4.06-4.11 (m, 2H), 4.23 (d, J = 3.5 Hz, 2H), 5.37 (t, J = 3.5 Hz, 1H) , 7.33 (dd, J = 2.9, 8.6 Hz, 1H), 7.76-7.81 (m, 3H), 8.26-8.31 (m, 3H); ¹³ C-NMR (125 MHz, CDCl ₃ ), Elem. Anal. Calcd for C ₁₈ H ₁₄ O ₅ : C, 69.67; H, 4.55. Found: C, 69.2; H, 4.5).

(Step D-1-5) Synthesis of anthraquinone derivative (D-1-E) Anthraquinone (100 mg, 0.48 mmol), quinone (DbE) (30 mg, 0.10 mmol), 4,4′-ethylenedianiline (122 mg, 0.58 mmol) and 1,4-diazabicyclo [2,2,2] octane (337 mg, 3.36 mmol) in chlorobenzene (4 ml) solution with titanium (IV) chloride (0.1 ml, 0.86 mmol) in chlorobenzene (2 ml ) The solution was added at 90 ° C. and stirred for 1 day under Ar at 130 ° C. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to obtain anthraquinone derivative (D-1-E) (183 mg, yield: 79%, Mw = 8800; Mw / Mn = 1.58. Elem. Anal). Calcd for C ₁₇₂ H ₁₂₆ N ₁₂ O ₃ : C, 85.76; H, 5.27; N, 6.98. Found: C, 80.2; H, 5.1; N, 6.4).

(Example D-1-6)
<Synthesis Example D-6: Synthesis of anthraquinone derivative (D-1-F)>

Synthesis of quinone (DbF)
To a solution of 2-hydroxyanthraquinone (500 mg, 2.23 mmol) in dimethylformamide (22 ml) was added sodium hydride (117 mg, 2.68 mmol) at 0 ° C., and the mixture was stirred for 10 minutes. After stirring, 1-bromo-3-methoxypropane (0.3 ml, 2.68 mmol) was added to the reaction mixture at 0 ° C., and the mixture was stirred at 130 ° C. for 1 day. The reaction mixture was cooled to room temperature and evaporated under reduced pressure. The residue was extracted 3 times with chloroform, dried over MgSO ₄ and filtered. The filtrate was evaporated under reduced pressure and the mixture was purified by column chromatography (silica gel, chloroform) to give quinone (DbF) (619 mg, yield: 94%, spectral data: ¹ H NMR (500 MHz, CDCl ₃ ) δ 2.13 (ddd, J = 6.3 Hz, 2H), 3.38 (s, 3H), 3.59 (t, J = 6.3 Hz, 2H), 4.26 (t, J = 6.3 Hz, 2H ), 7.27 (dd, J = 2.9, 8.6 Hz, 1H), 7.74 (d, J = 2.9 Hz, 1H), 7.75-7.81 (m, 2H), 8.26 (d, J = 8.6 Hz, 1H), 8.29 (M, 2H); ¹³ C-NMR (125 MHz, CDCl ₃ ) δ 29.4, 58.8, 65.7, 68.8, 110.7, 121.3, 129.7, 133.6, 133.6, 133.7, 134.1, 135.6, 163.8, 183.3; Elem. Anal. Calcd for C ₁₈ H ₁₆ O ₄ : C, 72.96; H, 5.44. Found: C, 73.0; H, 5.4).

(Step D-1-6) Synthesis of anthraquinone derivative (D-1-F) Anthraquinone (100 mg, 0.48 mmol), quinone (DbF) (29 mg, 0.10 mmol), 4,4′-ethylenedianiline (122 mg, 0.58 mmol) and 1,4-diazabicyclo [2,2,2] octane (323 mg, 2.88 mmol) in chlorobenzene (4 ml) with titanium (IV) chloride (0.1 ml, 0.86 mmol) in chlorobenzene (2 ml ) The solution was added at 90 ° C. and stirred for 1 day under Ar at 130 ° C. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to give anthraquinone derivative (D-1-F) (198 mg, yield: 86%, Mw = 11300; Mw / Mn = 1.72 Elem. Anal). Calcd for C ₁₇₂ H ₁₂₈ N ₁₂ O ₂ : C, 86.26; H, 5.39; N, 7.02).

(Example D-1-7)
<Synthesis Example D-7: Synthesis of anthraquinone derivative (D-1-G)>

Synthesis of quinone (DbG)
To a solution of 2-hydroxyanthraquinone (500 mg, 2.23 mmol) in dimethylformamide (22 ml) was added sodium hydride (117 mg, 2.68 mmol) at 0 ° C., and the mixture was stirred for 10 minutes. After stirring, methyl iodide (0.17 ml, 2.68 mmol) was added to the reaction mixture at 0 ° C., and the mixture was stirred at 130 ° C. for 1 day. The reaction mixture was cooled to room temperature and evaporated under reduced pressure. The residue was extracted 3 times with chloroform, dried over MgSO ₄ and filtered. The filtrate was evaporated under reduced pressure and the mixture was purified by column chromatography (silica gel, chloroform) to give quinone (DbG) (503 mg, yield: 95%, spectral data: ¹ H NMR (500 MHz, CDCl ₃ ) δ 3.99 (s, 3H), 7.27 (dd, J = 2.9, 8.6 Hz, 1H), 7.73 (d, J = 2.9 Hz, 1H), 7.75-7.81 (m, 2H) , 8.26 (d, J = 8.6 Hz, 1H), 8.28-8.31 (m, 2H); ¹³ C-NMR (125 MHz, CDCl ₃ ) δ 56.0, 109.9, 121.2, 127.1, 129.8, 133.6, 133.7, 134.2, 135.6, 164.3, 182.2, 183.3; Elem Anal Calcd for C 15 H 10 O 3:... C, 75.62; H, 4.23 Found: C, 76.2; H, 4.8).

(Step D-1-7) Synthesis of anthraquinone derivative (D-1-G) Anthraquinone (100 mg, 0.48 mmol), quinone (DbG) (23 mg, 0.10 mmol), 4,4′-ethylenedianiline (122 mg, 0.58 mmol) and 1,4-diazabicyclo [2,2,2] octane (323 mg, 2.88 mmol) in chlorobenzene (4 ml) with titanium (IV) chloride (0.1 ml, 0.86 mmol) in chlorobenzene (2 ml ) The solution was added at 90 ° C. and stirred for 1 day under Ar at 130 ° C. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to give anthraquinone derivative (D-1-F) (171 mg, yield: 76%, Mw = 10700; Mw / Mn = 1.58. Elem. Anal Calcd for C ₁₆₉ H ₁₂₂ N ₁₂ O: C, 86.86; H, 5.26; N, 7.19).

(Example D-1-8)
<Synthesis Example D-8: Synthesis of anthraquinone derivative (D-1-H)>

Synthesis of quinone (DbH)
To a solution of 2-hydroxyanthraquinone (500 mg, 2.23 mmol) in dimethylformamide (22 ml) was added sodium hydride (117 mg, 2.68 mmol) at 0 ° C., and the mixture was stirred for 10 minutes. After stirring, 1-bromopropane (0.24 ml, 2.68 mmol) was added to the reaction mixture at 0 ° C., and the mixture was stirred at 130 ° C. for 1 day. The reaction mixture was cooled to room temperature and evaporated under reduced pressure. The residue was extracted 3 times with chloroform, dried over MgSO ₄ and filtered. The filtrate was evaporated under reduced pressure and the mixture was purified by column chromatography (silica gel, chloroform) to give quinone (DbH) (571 mg, yield: 91%, spectral data: ¹ H NMR (500 MHz, CDCl ₃ ) δ 1.09 (t, J = 7.5 Hz, 3H), 1.89 (dq, J = 7.5, 6.3 Hz, 2H), 4.12 (t, J = 6.3 Hz, 2H), 7.27 (dd , J = 2.9, 8.6 Hz, 1H), 7.72 (d, J = 2.9 Hz, 1H), 7.75-7.81 (m, 2H), 8.25 (d, J = 8.6 Hz, 1H), 8.28-8.31 (m, 2H); ¹³ C-NMR (125 MHz, CDCl ₃ ) δ 10.4, 22.4, 70.3, 110.5, 121.5, 126.9, 127.1, 129.7, 133.6, 133.7, 134.1, 135.5, 164.0, 182.2, 183.4; Elem. Anal. Calcd for C ₁₇ H ₁₄ O ₃ : C, 76.68; H, 5.30. Found: C, 76.6; H, 5.4).

(Step D-1-8) Synthesis of anthraquinone derivative (D-1-H) Anthraquinone (100 mg, 0.48 mmol), quinone (DbH) (27 mg, 0.10 mmol), 4,4′-ethylenedianiline (122 mg, 0.58 mmol) and 1,4-diazabicyclo [2,2,2] octane (323 mg, 2.88 mmol) in chlorobenzene (4 ml) with titanium (IV) chloride (0.1 ml, 0.86 mmol) in chlorobenzene (2 ml ) The solution was added at 90 ° C. and stirred for 1 day under Ar at 130 ° C. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to give the anthraquinone derivative (D-1-H) (174 mg, yield: 76%, Mw = 7800; Mw / Mn = 1.50. Elem. Anal Calcd for C ₁₇₁ H ₁₂₆ N ₁₂ O: C, 86.85; H, 5.37; N, 7.11).

(Example D-1-9)
<Synthesis Example D-9: Synthesis of anthraquinone derivative (D-1-I)>

Synthesis of quinone (DbI)
To a solution of 2-hydroxyanthraquinone (500 mg, 2.23 mmol) in dimethylformamide (22 ml) was added sodium hydride (117 mg, 2.68 mmol) at 0 ° C., and the mixture was stirred for 10 minutes. After stirring, 1-bromo-3-methylbutane (0.34 ml, 2.68 mmol) was added to the reaction mixture at 0 ° C., and the mixture was stirred at 130 ° C. for 1 day. The reaction mixture was cooled to room temperature and evaporated under reduced pressure. The residue was extracted 3 times with chloroform, dried over MgSO ₄ and filtered. The filtrate was evaporated under reduced pressure and the mixture was purified by column chromatography (silica gel, chloroform) to give quinone (Db-I) (633 mg, yield: 96%, spectral data: ¹ H NMR (500 MHz, CDCl ₃ ) δ 1.75 (dt, J = 6.9 Hz, 2H), 1.88 (ddq, J = 6.9 Hz, 6H), 4.19 (t, J = 6.9 Hz, 2H), 7.26 (dd, J = 2.9, 8.6 Hz, 1H), 7.72 (d, J = 2.9 Hz, 1H), 7.75-7.81 (m, 2H), 8.25 (d, J = 8.6 Hz, 1H), 8.28-8.31 (m, 2H) ; ¹³ C-NMR (125 MHz, CDCl ₃ ) δ 22.5, 25.0, 37.7, 67.2, 110.5, 121.5, 126.9, 127.1, 129.7, 133.6, 133.7, 134.1, 135.5, 164.0, 182.2, 183.4; Elem. Anal. Calcd for C ₁₉ H ₁₈ O ₃ : C, 77.53; H, 6.16. Found: C, 77.2; H, 6.2).

(Step D-1-9) Synthesis of anthraquinone derivative (D-1-I) Anthraquinone (100 mg, 0.48 mmol), quinone (DbI) (28 mg, 0.10 mmol), 4,4′-ethylenedianiline (122 mg, 0.58 mmol) and 1,4-diazabicyclo [2,2,2] octane (323 mg, 2.88 mmol) in chlorobenzene (4 ml) with titanium (IV) chloride (0.1 ml, 0.86 mmol) in chlorobenzene (2 ml ) The solution was added at 90 ° C. and stirred for 1 day under Ar at 130 ° C. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to give anthraquinone derivative (D-1-I) (179 mg, yield: 79%, Mw = 9100; Mw / Mn = 1.85. Elem. Anal Calcd for C ₁₇₃ H ₁₃₀ N ₁₂ O: C, 86.83; H, 5.48; N, 7.02).

(Example D-1-10)
<Synthesis Example D-10: Synthesis of anthraquinone derivative (D-1-K)>

Synthesis of quinone (DbK)
To a solution of 2-hydroxyanthraquinone (500 mg, 2.23 mmol) in dimethylformamide (22 ml) was added sodium hydride (117 mg, 2.68 mmol) at 0 ° C., and the mixture was stirred for 10 minutes. After stirring, 1-bromooctane (0.47 ml, 2.68 mmol) was added to the reaction mixture at 0 ° C., and the mixture was stirred at 130 ° C. for 1 day. The reaction mixture was cooled to room temperature and evaporated under reduced pressure. The residue was extracted 3 times with chloroform, dried over MgSO ₄ and filtered. The filtrate was evaporated under reduced pressure and the mixture was purified by column chromatography (silica gel, chloroform) to give quinone (DbK) (753 mg, appropriate amount, spectral data: ¹ H NMR (500 MHz , CDCl ₃ ) δ 0.90 (t, J = 6.9 Hz, 3H), 1.25-1.40 (m, 8H), 1.46-1.52 (m, 2H), 1.85 (ddt, J = 6.9 Hz, 2H), 4.15 (t , J = 6.9 Hz, 2H), 7.26 (dd, J = 2.3, 8.6 Hz, 1H), 7.71 (d, J = 2.3 Hz, 1H), 7.75-7.81 (m, 2H), 8.25 (d, J = 8.6 Hz, 1H), 8.30 (ddd, J = 1.7, 5.2, 6.9 Hz, 2H); ¹³ C-NMR (125 MHz, CDCl ₃ ) δ 14.1, 22.6, 29.0, 29.2, 29.3, 31.8, 68.8, 110.5, 121.5, 126.9, 127.1, 129.7, 133.6, 133.7, 134.1, 164.0, 182.2, 183.3; Elem. Anal. Calcd for C ₂₂ H ₂₄ O ₃ : C, 78.54; H, 7.19. Found: C, 78.5; H, 7.2 ).

(Step D-1-10) Synthesis of anthraquinone derivative (D-1-K) Anthraquinone (100 mg, 0.48 mmol), quinone (DbK) (32 mg, 0.10 mmol), 4,4′-ethylenedianiline (122 mg, 0.58 mmol) and 1,4-diazabicyclo [2,2,2] octane (377 mg, 3.36 mmol) in chlorobenzene (4 ml) solution with titanium (IV) chloride (0.11 ml, 0.96 mmol) in chlorobenzene (2 ml ) The solution was added at 90 ° C. and stirred for 1 day under Ar at 130 ° C. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to give anthraquinone derivative (D-1-K) (179 mg, yield: 77%, Mw = 8900; Mw / Mn = 1.65. Elem. Anal Calcd for C ₁₇₆ H ₁₃₆ N ₁₂ O: C, 86.81; H, 5.63; N, 6.90)).

(Example D-1-11)
<Synthesis Example D-11: Synthesis of anthraquinone derivative (D-1-L)>

Synthesis of quinone (DbL)
To a solution of 2-hydroxyanthraquinone (500 mg, 2.23 mmol) in dimethylformamide (22 ml) was added sodium hydride (117 mg, 2.68 mmol) at 0 ° C., and the mixture was stirred for 10 minutes. After stirring, p-methoxybenzyl chloride (0.36 ml, 2.68 mmol) was added to the reaction mixture at 0 ° C., and the mixture was stirred at 130 ° C. for 1 day. The reaction mixture was cooled to room temperature and evaporated under reduced pressure. The residue was extracted 3 times with chloroform, dried over MgSO ₄ and filtered. The filtrate was evaporated under reduced pressure and the mixture was purified by column chromatography (silica gel, chloroform) to give quinone (DbL) (771 mg, appropriate amount, spectral data: ¹ H NMR (500 MHz , CDCl ₃ ) δ 3.83 (s, 3H), 5.18 (s, 2H), 6.95 (d, J = 8.6 Hz, 2H), 7.33 (dd, J = 2.3, 8.6 Hz, 1H), 7.40 (d, J = 9.2 Hz, 2H), 7.75-7.81 (m, 2H), 7.82 (d, J = 2.3 Hz, 1H), 8.26 (d, J = 8.6 Hz, 1H), 8.28-8.31 (m, 2H); ¹³ C-NMR (125 MHz, CDCl ₃ ) δ 55.3, 70.5, 110.9, 114.2, 121.8, 127.1, 127.2, 127.7, 129.5, 129.8, 133.6, 133.7, 134.2, 135.6, 159.8, 163.5, 182.2, 183.3. Elem. Anal Calcd for C ₂₁ H ₁₄ O ₄ : C, 76.35; H, 4.27).

(Step D-1-11) Synthesis of anthraquinone derivative (D-1-L) Anthraquinone (100 mg, 0.48 mmol), quinone (DbL) (33 mg, 0.10 mmol), 4,4′-ethylenedianiline (122 mg, 0.58 mmol) and 1,4-diazabicyclo [2,2,2] octane (389 mg, 3.46 mmol) in chlorobenzene (4 ml) solution with titanium (IV) chloride (0.1 ml, 0.86 mmol) in chlorobenzene (2 ml ) The solution was added at 90 ° C. and stirred for 1 day under Ar at 130 ° C. The reaction mixture was cooled to room temperature and filtered through celite. The filtrate was evaporated under reduced pressure and reprecipitated with methanol to give the anthraquinone derivative (D-1-L) (134 mg, yield: 57%, Mw = 8200; Mw / Mn = 1.53. Elem. Anal Calcd for C ₁₇₅ H ₁₂₆ N ₁₂ O ₂ : C, 86.53; H, 5.23; N, 6.92)).

(Example 2) <Battery characteristics evaluation>
(Example D-2-1)
<Preparation of positive electrode for lithium ion secondary battery>
Anthraquinone derivative (D-1-A-m0) (2 mg) synthesized with reference to Example D-1-1 above, Ketjen Black (manufactured by Ketjen Black International) (4 mg), and conductive binder (TAB-2) (manufactured by Hosen) (4 mg) was mixed to form a sheet, which was then crimped onto the surface of an aluminum mesh (14φ) (manufactured by Niraco) as a current collector. It was vacuum-dried at 120 ° C. for 6 hours to produce an electrode equipped with an anthraquinone derivative (D-1-A-m0).

<Production of coin-type lithium ion secondary battery>
The above electrode is used as a positive electrode of a coin-type lithium ion secondary battery, and ethylene carbonate (EC) / diethyl carbonate (DEC) (EC: DEC) containing 1 M (mol / l) LiPF ₆ (lithium hexafluorophosphate) electrolyte salt. = 1: 1 (volume ratio)) The positive electrode was impregnated with an electrolytic solution (manufactured by Kishida Chemical). Then, a separator (manufactured by Celgard) made of a polypropylene porous film and a glass filter (manufactured by Advantech) were laminated on the positive electrode, and a lithium foil (manufactured by Honjo Metal) that became the negative electrode was further laminated. Thereafter, the aluminum exterior of the coin-type battery is stacked with an insulating packing disposed around it, and pressurized with a crimping machine, using an anthraquinone derivative (D-1-A-m0) as the positive electrode active material and metallic lithium as the negative electrode active material. A sealed coin-type lithium ion secondary battery was produced.

(Example D-2-2)
<Preparation of positive electrode for lithium ion secondary battery>
Example D-, except that the anthraquinone derivative (D-1-A-m1) synthesized with reference to Example D-1-1 was used instead of the anthraquinone derivative (D-1-A-m0). An electrode provided with an anthraquinone derivative (D-1-A-m1) was produced in the same manner as in 2-1.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example D-2-1, the above electrode was used as a positive electrode of a coin-type battery, an anthraquinone derivative (D-1-A-m1) as a positive electrode active material, and metal lithium as a negative electrode active material. A coin-type lithium ion secondary battery was prepared.

(Example D-2-3)
<Preparation of positive electrode for lithium ion secondary battery>
Example D-, except that the anthraquinone derivative (D-1-A-m5) synthesized with reference to Example D-1-1 was used instead of the anthraquinone derivative (D-1-A-m0). An electrode provided with an anthraquinone derivative (D-1-A-m5) was produced in the same manner as in 2-1.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example D-2-1, the above electrode was used as the positive electrode of a coin-type battery, an anthraquinone derivative (D-1-A-m5) as the positive electrode active material, and metal lithium as the negative electrode active material. A coin-type lithium ion secondary battery was prepared.

(Example D-2-4)
<Preparation of positive electrode for lithium ion secondary battery>
Example D-, except that the anthraquinone derivative (D-1-A-m10) synthesized with reference to Example D-1-1 was used instead of the anthraquinone derivative (D-1-A-m0). An electrode provided with an anthraquinone derivative (D-1-A-m10) was produced in the same manner as in 2-1.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example D-2-1, the above electrode was used as the positive electrode of a coin-type battery, an anthraquinone derivative (D-1-A-m10) as the positive electrode active material, and metal lithium as the negative electrode active material. A coin-type lithium ion secondary battery was prepared.

(Example D-2-5)
<Preparation of positive electrode for lithium ion secondary battery>
Example D-, except that the anthraquinone derivative (D-1-B-m5) synthesized with reference to Example D-1-2 was used instead of the anthraquinone derivative (D-1-A-m0). An electrode provided with an anthraquinone derivative (D-1-B-m5) was produced in the same manner as in 2-1.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example D-2-1, the electrode is used as a positive electrode of a coin-type battery, an anthraquinone derivative (D-1-B-m5) is used as a positive electrode active material, and metallic lithium is used as a negative electrode active material. A coin-type lithium ion secondary battery was prepared.

(Example D-2-6)
<Preparation of positive electrode for lithium ion secondary battery>
Example D-, except that the anthraquinone derivative (D-1-C-m5) synthesized with reference to Example D-1-3 was used instead of the anthraquinone derivative (D-1-A-m0). An electrode provided with an anthraquinone derivative (D-1-C-m5) was produced in the same manner as in 2-1.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example D-2-1, the above electrode was used as a positive electrode of a coin-type battery, an anthraquinone derivative (D-1-C-m5) as a positive electrode active material, and metal lithium as a negative electrode active material. A coin-type lithium ion secondary battery was prepared.

(Example D-2-7)
<Preparation of positive electrode for lithium ion secondary battery>
Example D-, except that the anthraquinone derivative (D-1-D-m5) synthesized with reference to Example D-1-4 was used instead of the anthraquinone derivative (D-1-A-m0). An electrode provided with an anthraquinone derivative (D-1-D-m5) was produced in the same manner as in 2-1.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example D-2-1, the above electrode was used as the positive electrode of a coin-type battery, an anthraquinone derivative (D-1-D-m5) as the positive electrode active material, and metal lithium as the negative electrode active material. A coin-type lithium ion secondary battery was prepared.

(Example D-2-8)
<Preparation of positive electrode for lithium ion secondary battery>
Example D-, except that the anthraquinone derivative (D-1-E-m5) synthesized with reference to Example D-1-5 was used instead of the anthraquinone derivative (D-1-A-m0). An electrode provided with an anthraquinone derivative (D-1-E-m5) was produced in the same manner as in 2-1.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example D-2-1, the electrode is used as a positive electrode of a coin-type battery, an anthraquinone derivative (D-1-E-m5) is used as a positive electrode active material, and metallic lithium is used as a negative electrode active material. A coin-type lithium ion secondary battery was prepared.

(Example D-2-9)
<Preparation of positive electrode for lithium ion secondary battery>
Example D-, except that the anthraquinone derivative (D-1-F-m5) synthesized with reference to Example D-1-6 was used instead of the anthraquinone derivative (D-1-A-m0). An electrode provided with an anthraquinone derivative (D-1-F-m5) was produced in the same manner as in 2-1.

<Production of coin-type lithium ion secondary battery>
In the same manner as in Example D-2-1, the electrode is used as a positive electrode of a coin-type battery, an anthraquinone derivative (D-1-F-m5) is used as a positive electrode active material, and metallic lithium is used as a negative electrode active material. A coin-type lithium ion secondary battery was prepared.

(Comparative Example D-1)
<Preparation of positive electrode for lithium ion secondary battery>
An electrode provided with an anthraquinone polymer was produced in the same manner as in Example D-2-1 except that an anthraquinone polymer was used in place of the anthraquinone derivative (D-1-A-m0).

<Production of coin-type lithium ion secondary battery>
A sealed coin-type lithium ion secondary battery using the above electrode as a positive electrode of a coin-type battery, an anthraquinone polymer as a positive electrode active material, and metallic lithium as a negative electrode active material in exactly the same manner as in Example D-2-1 Was made.

  <Battery characteristics evaluation using coin-type lithium ion secondary batteries produced in Examples D-2-1 to D-2-9 and Comparative Example D-1>

  Using the coin-type lithium ion secondary battery produced in Examples D-2-1 to D-2-9 and Comparative Example D-1, a discharge test or a charge / discharge test was performed according to the following method.

  Under an environment of a temperature of 25 ° C., the coin-type lithium ion secondary batteries produced in Examples D-2-1 to D-2-9 and Comparative Example D-1 were 2 at a constant current of 0.05 milliampere (mA). The battery was discharged until it reached volts (V).

  Under an environment of a temperature of 25 ° C., the coin-type lithium ion secondary battery produced in Examples D-2-3, D-2-6, D-2-9 and Comparative Example D-1 was 0.05 milliampere (mA). The battery was discharged at a constant current of up to 2 volts (V), and after 5 minutes of rest, it was charged at a constant current of 0.05 milliampere (mA) until it reached 4 volts (V). With this as one cycle, a charge / discharge test was conducted up to 100 cycles.

  <Evaluation results of battery characteristics of coin-type lithium ion secondary batteries produced in Examples D-2-1 to D-2-9 and Comparative Example D-1>

  The result of the discharge test using the coin-type lithium ion secondary battery produced in Examples D-2-1 to D-2-4 is shown in FIG. FIG. 11 shows a discharge curve (discharge capacity value (mAh / g)) vs.. Voltage (V)). FIG. 12 shows the results of a discharge test using the coin-type lithium ion secondary batteries produced in Examples D-2-3 and D-2-5 to D-2-9. FIG. 12 shows a discharge curve (discharge capacity value (mAh / g)) vs. Voltage (V)). The result of the discharge test using the coin-type lithium ion secondary battery produced in Comparative Example D-1 is shown in FIG. FIG. 13 shows a discharge curve (discharge capacity value (mAh / g)) vs.. Voltage (V)). The result of the charging / discharging test using the coin-type lithium ion secondary battery produced in Examples D-2-3, D-2-6, D-2-9 and Comparative Example D-1 is shown in FIG. FIG. 14 shows a coin-type lithium ion secondary battery using the anthraquinone derivatives (D-1-A-m5, D-1-C-m5, and D-1-F-m5) of the present invention and an anthraquinone of a comparative example. It is a result of the battery capacity of the 100th cycle with the coin-type lithium ion secondary battery using a polymer. The value of the battery capacity of the coin-type lithium ion secondary battery using the anthraquinone derivatives (D-1-A-m5, D-1-C-m5, and D-1-F-m5) of the present invention is a comparative example. It is a ratio value when the battery capacity value of a coin-type lithium ion secondary battery using an anthraquinone polymer of D-1 is 1.0.

  When the ratio of the unsubstituted anthraquinone and the quinone having a methoxymethyl group at the 2-position was arbitrarily changed, as is apparent from FIG. 11, anthraquinone (m): methoxymethylanthraquinone (n) at the 2-position was 5: 1, that is, the battery capacity of the coin-type lithium ion secondary battery using the anthraquinone derivative (D-1-A-m5) of Example D-2-3 showed the maximum value. As is clear from FIGS. 11 and 13, the anthraquinone derivatives of Examples D-2-1 and 2-3 with respect to the battery capacity of the coin-type lithium ion secondary battery using the anthraquinone polymer of Comparative Example D-1. The battery capacity of the coin-type lithium ion secondary battery using (D-1-A-m0 and D-1-A-m5) shows a high value, and it is confirmed that the lithium ion secondary battery application suitability is good. It was done. Further, coin-type lithium ions using the anthraquinone derivatives (D-1-A-m0, D-1-A-m1, and D-1-A-m10) of Examples D-2-2 and D-2-4 The battery capacity of the secondary battery is almost equivalent to the battery capacity of the coin-type lithium ion secondary battery using the anthraquinone polymer of Comparative Example D-1, and there is no problem in suitability for use of the lithium ion secondary battery. Was confirmed.

  As is clear from FIGS. 12 and 13, the anthraquinone derivative (D-1-A-m5) of Example D-2-3 and the anthraquinone derivative (D-1-C-m5) of Example D-2-6 Coin-type lithium ion secondary using the anthraquinone derivative (D-1-F-m5) of Example D-2-9 and the anthraquinone derivative (D-1-E-m5) of Example D-2-8 The battery capacity of the battery is higher than the battery capacity of the coin-type lithium ion secondary battery using the anthraquinone polymer of Comparative Example D-1, and an anthraquinone derivative (D-1-A-m5), an anthraquinone derivative (D-1-C-m5), the anthraquinone derivative, and the anthraquinone derivative (D-1-E-m5) were confirmed to have good suitability for lithium ion secondary batteries. The battery capacity of the coin-type lithium ion secondary battery using the anthraquinone derivative (D-1-B-m5) of Example D-2-5 is the same as that of the coin-type lithium ion 2 using the anthraquinone polymer of Comparative Example D-1. The battery capacity of the coin-type lithium ion secondary battery using the anthraquinone derivative (D-1-D-m5) of Example D-2-4 is substantially the same as the battery capacity of the secondary battery. The value was slightly lower than the battery capacity of the coin-type lithium ion secondary battery using the anthraquinone polymer of Comparative Example D-1.

  Referring to FIG. 14, the battery capacity value of the coin-type lithium ion secondary battery using the anthraquinone derivative (D-1-A-m5) of Example D-2-3 is the highest, and the capacity is increased. As a result, it was confirmed that both a long life (cycle suitability) was achieved at the same time. Moreover, the battery capacity values of the coin-type lithium ion secondary batteries using the anthraquinone derivatives (D-1-C-m5 and D-1-F-m5) of Examples D-2-6 and 2-9 are compared. The battery capacity of the coin-type lithium ion secondary battery using the anthraquinone polymer of Example D-1 was almost the same, and it was confirmed that there was no problem in cycle suitability.

  When the coin-type lithium ion secondary battery prepared in Example D-2-1 to D-2-9 was mounted on a vehicle such as an automobile, it was manufactured in Example D-2-1 to D-2-9. We confirmed that the coin-type lithium ion secondary battery plays an important role as a reliable and stable power source.

Claims (19)

Anthraquinone derivative A, which is represented by the following general formula (A-1).
(In the general formula (A-1), R ₁ represents a substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group, and n ₁ is an integer of ₁ to 100. .) The anthraquinone derivative A according to claim 1, wherein R ₁ is a substituted or unsubstituted phenylene group or a substituted or unsubstituted thienylene group.   A positive electrode active material for a lithium ion secondary battery, comprising the anthraquinone derivative A according to claim 1. An anthraquinone derivative B, which is represented by the following general formula (B-1).
(In the general formula (B-1), R ₂ is represented by a substituted or unsubstituted aliphatic hydrocarbon group, a substituted or unsubstituted aromatic hydrocarbon group, or the following general formula (B-2). And n ₂ is an integer of 1 to 100.)
(In the general formula (B-2), R ₃ represents a linking group or a single bond, and m ₁ is an integer of ₁ to 10.) The anthraquinone derivative B according to claim 4, wherein R ₃ is a substituted or unsubstituted phenylene group.   A positive electrode active material for a lithium ion secondary battery, comprising the anthraquinone derivative B according to claim 4. An anthraquinone derivative C1 represented by the following general formula (C-1).
(In the general formula (C-1), R ₄ represents a substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group, and n ₃ is an integer of 1 to 100. .) The anthraquinone derivative C1 according to claim 7, wherein R ₄ is a methoxymethyl group or a p-methoxybenzyl group. An anthraquinone derivative C2 represented by the following general formula (C-2).
(R ₄ in the general formula (C-2) has the same meaning as R ₄ in the general formula (C-1). In the general formula (C-2), R ₅ represents a substituted or unsubstituted fat. An aromatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group, and n ₃ is an integer of 1 to 100.) The anthraquinone derivative C2 according to claim 9, wherein R ₄ and / or R ₅ is a methoxymethyl group and / or a p-methoxybenzyl group.   A positive electrode active material for a lithium ion secondary battery, comprising the anthraquinone derivative C1 according to claim 7 or 8.   A positive electrode active material for a lithium ion secondary battery, comprising the anthraquinone derivative C2 according to claim 9 or 10. An anthraquinone derivative D represented by the following general formula (D-1).
(In the general formula (D-1), R ₆ is represented by a substituted or unsubstituted aliphatic hydrocarbon group, a substituted or unsubstituted aromatic hydrocarbon group, or the following general formula (D-2). A group, n ₄ is an integer of 1 to 100, and m ₂ is 0 or an integer of 1 to 100.)
(In the general formula (D-2), R ₇ represents a substituted or unsubstituted aliphatic hydrocarbon group or a substituted or unsubstituted aromatic hydrocarbon group.) The anthraquinone derivative D according to claim 13, wherein R ₆ is a substituent having a hetero atom. The anthraquinone derivative D according to claim 13 or 14, wherein R ₇ is a substituent having a hetero atom.   A positive electrode active material for a lithium ion secondary battery, comprising the anthraquinone derivative D according to any one of claims 13 to 15.   A positive electrode for a lithium ion secondary battery, wherein the positive electrode active material according to claim 3, 6, 11, 12 or 16 is provided on at least a surface of a current collector.   A lithium ion secondary battery comprising at least a positive electrode, a negative electrode, and an electrolyte as constituents, wherein the positive electrode is the positive electrode according to claim 17.   A vehicle equipped with the lithium ion secondary battery according to claim 18.