WO2012017520A1 - Batterie secondaire au lithium - Google Patents

Batterie secondaire au lithium Download PDF

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Publication number
WO2012017520A1
WO2012017520A1 PCT/JP2010/063119 JP2010063119W WO2012017520A1 WO 2012017520 A1 WO2012017520 A1 WO 2012017520A1 JP 2010063119 W JP2010063119 W JP 2010063119W WO 2012017520 A1 WO2012017520 A1 WO 2012017520A1
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lithium
cation
positive electrode
secondary battery
negative electrode
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PCT/JP2010/063119
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English (en)
Japanese (ja)
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博文 中本
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トヨタ自動車株式会社
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Priority to PCT/JP2010/063119 priority Critical patent/WO2012017520A1/fr
Publication of WO2012017520A1 publication Critical patent/WO2012017520A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0566—Liquid materials
    • H01M10/0568—Liquid materials characterised by the solutes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a lithium secondary battery capable of suppressing lithium deposition.
  • the secondary battery can convert the decrease in chemical energy associated with the chemical reaction into electrical energy and perform discharge.
  • the secondary battery converts electrical energy into chemical energy by flowing current in the opposite direction to that during discharge.
  • the battery can be stored (charged).
  • lithium secondary batteries are widely used as power sources for notebook personal computers, mobile phones, and the like because of their high energy density.
  • lithium cobaltate Li 1-x CoO 2
  • Li 1-x CoO 2 + xLi + + xe ⁇ ⁇ LiCoO 2 (II) (In the above formula (II), 0 ⁇ x ⁇ 1.)
  • reverse reactions of the above formulas (I) and (II) proceed in the negative electrode and the positive electrode, respectively, and in the negative electrode, graphite (Li x C) containing lithium by graphite intercalation is Since lithium cobaltate (Li 1-x CoO 2 ) is regenerated, re-discharge is possible.
  • Patent Document 1 discloses a non-aqueous electrolyte for a lithium secondary battery characterized by containing a hydroxy sultone compound.
  • the lithium secondary battery of the present invention is a lithium secondary battery comprising at least a positive electrode, a negative electrode, and an electrolyte solution interposed between the positive electrode and the negative electrode, wherein the negative electrode contains lithium metal,
  • the electrolytic solution contains an ionic liquid containing a cation and its counter anion, and a lithium salt, and the cation has one or more ether groups in its structure, and the counter anion is inert to lithium metal. It is characterized by.
  • the cation is an ammonium cation further having a heterocyclic structure closed by a nitrogen atom and an alkyl chain having 2 to 10 carbon atoms, and an ammonium having one or more chain alkyl groups having 1 to 10 carbon atoms.
  • a cation selected from the group consisting of cations is preferred.
  • the cation is preferably a cation represented by the following general formula (1) or (2).
  • R 1 to R 6 each independently represents a substituent selected from the group consisting of a hydrogen atom and an alkyl group having 1 to 10 carbon atoms. And r is an integer of 1 or more.
  • the cation is a group consisting of N- (2-methoxyethyl) -N-methylpiperidinium cation and N, N-diethyl-N-methyl-N- (2-methoxyethyl) ammonium cation. It is preferable that it is a cation chosen from these.
  • the ether group of the cation interacts with lithium ions, so that lithium ions can be easily supplied to the positive electrode, and as a result, precipitation of lithium metal in the battery can be suppressed. Further, according to the present invention, by using a counter anion that is inactive with respect to lithium metal, it is possible to suppress the decomposition of the ionic liquid and to extend the battery life.
  • FIG. 1 It is a figure which shows an example of the layer structure of the lithium secondary battery which concerns on this invention, Comprising: It is the figure which showed typically the cross section cut
  • FIG. 1 shows an example of the layer structure of the lithium secondary battery which concerns on this invention, Comprising: It is the figure which showed typically the cross section cut
  • the lithium secondary battery of the present invention is a lithium secondary battery comprising at least a positive electrode, a negative electrode, and an electrolyte solution interposed between the positive electrode and the negative electrode, wherein the negative electrode contains lithium metal,
  • the electrolytic solution contains an ionic liquid containing a cation and its counter anion, and a lithium salt, and the cation has one or more ether groups in its structure, and the counter anion is inert to lithium metal. It is characterized by.
  • ionic liquids have low volatility and flammability, and can be easily adjusted in physical properties during synthesis by changing substituents on the cation center.
  • the present inventor uses a cation having at least one ether group in the structure and an ionic liquid having a counter anion inert to lithium metal in the electrolyte solution, thereby allowing a cation having no ether group in the structure. It was found that lithium can be deposited more uniformly than in the case of using an ionic liquid having the present invention, and the present invention has been completed.
  • the electrolyte solutions (Example 1 and Example 2) having a cation having one or more ether groups in the structure are the electrolyte solutions (Comparative Examples 1 and 2) having a cation having no ether group in the structure. It can be seen that the uniform deposition time of lithium is several times longer than in Example 2). Further, in the present invention, by using a counter anion that is inactive with respect to lithium metal, the decomposition of the ionic liquid can be suppressed and the battery life can be extended.
  • the cation used in the present invention is an ammonium cation further having a heterocyclic structure closed by a nitrogen atom and an alkyl chain having 2 to 10 carbon atoms, or a chain shape having 1 to 10 carbon atoms. It is preferably a cation selected from the group consisting of ammonium cations further having one or more alkyl groups. Specifically, such a cation is more preferably a cation represented by the following general formula (1) or (2).
  • R 1 to R 6 each independently represents a substituent selected from the group consisting of a hydrogen atom and an alkyl group having 1 to 10 carbon atoms. And r is an integer of 1 or more.
  • Examples of the cation represented by the general formula (1) include N- (2-methoxyethyl) -N-methylpiperidinium cation, N- (2-methoxypropyl) -N-methylpiperidinium cation, N- (2-Methoxyethyl) -N-methylpyrrolidinium cation or N- (2-methoxypropyl) -N-methylpyrrolidinium cation is more preferred.
  • Examples of the cation represented by the general formula (2) include N, N-diethyl-N-methyl-N- (2-methoxyethyl) ammonium cation, N-ethyl-N, N-dimethyl-N- ( 2-methoxyethyl) ammonium cation, N, N-diethyl-N-methyl-N- (2-methoxypropyl) ammonium cation or N-ethyl-N, N-dimethyl-N- (2-methoxypropyl) ammonium cation More preferred.
  • N- (2-methoxyethyl) -N-methylpiperidinium cation or N, N-diethyl-N-methyl-N- (2-methoxyethyl) ammonium cation it is further possible to use N- (2-methoxyethyl) -N-methylpiperidinium cation or N, N-diethyl-N-methyl-N- (2-methoxyethyl) ammonium cation. preferable.
  • the counter anion used for this invention will not be specifically limited if it is inactive with respect to lithium metal, What is normally used as anion seed
  • the anion inactive to the lithium metal herein refers to a stable anion that does not change its chemical structure even when the lithium metal is immersed in an electrolytic solution containing the anion for 100 minutes.
  • an anion active against lithium metal refers to an anion that decomposes by immersing lithium metal in an electrolyte containing the anion for 100 minutes.
  • counter anions used in the present invention are [N (CF 3 ) 2 ] ⁇ , [N (SO 2 CF 3 ) 2 ] ⁇ , [N (SO 2 C 2 F 5 ) 2 ] ⁇ .
  • Imide anions such as RSO 3 ⁇ (hereinafter R represents an aliphatic hydrocarbon group or aromatic hydrocarbon group), RSO 4 ⁇ , R f SO 3 ⁇ (hereinafter R f is a fluorine-containing halogenated hydrocarbon group) the point), R f SO 4 -, etc.
  • the counter anion used in the present invention is preferably a bis (trifluoromethanesulfonyl) imide ion ([N (SO 2 CF 3 ) 2 ] ⁇ ).
  • the electrolytic solution used in the present invention further contains a lithium salt as a supporting salt.
  • the lithium salt include inorganic lithium salts such as LiPF 6 , LiBF 4 , LiClO 4, and LiAsF 6 ; LiCF 3 SO 3 , LiN (SO 2 CF 3 ) 2 (Li-TFSI), LiN (SO 2 C 2 F 5 ) 2 and organic lithium salts such as LiC (SO 2 CF 3 ) 3 . Two or more such lithium salts may be used in combination.
  • the amount of lithium salt added to the ionic liquid is not particularly limited, but is preferably about 0.1 to 1.5 mol / kg.
  • the electrolytic solution used in the present invention may contain a non-aqueous electrolyte in addition to the ionic liquid and the lithium salt.
  • a non-aqueous electrolyte solution and a non-aqueous gel electrolyte can be used as the non-aqueous electrolyte.
  • the nonaqueous electrolytic solution used in the present invention usually contains the above-described lithium salt and nonaqueous solvent.
  • the non-aqueous solvent include ethylene carbonate (EC), propylene carbonate (PC), dimethyl carbonate (DMC), diethyl carbonate (DEC), ethyl methyl carbonate (EMC), ethyl carbonate, butylene carbonate, ⁇ -butyrolactone, sulfolane.
  • the non-aqueous solvent is preferably a solvent having high oxygen solubility.
  • the concentration of the lithium salt in the nonaqueous electrolytic solution is, for example, in the range of 0.5 mol / L to 3 mol / L.
  • the non-aqueous gel electrolyte used in the present invention is usually a gel obtained by adding a polymer to a non-aqueous electrolyte solution.
  • a polymer such as polyethylene oxide (PEO), polyacrylonitrile (PAN), or polymethyl methacrylate (PMMA)
  • PEO polyethylene oxide
  • PAN polyacrylonitrile
  • PMMA polymethyl methacrylate
  • FIG. 1 is a diagram showing an example of a layer configuration of a lithium secondary battery according to the present invention, and is a diagram schematically showing a cross section cut in a stacking direction.
  • the lithium secondary battery according to the present invention is not necessarily limited to this example.
  • the lithium secondary battery 100 is sandwiched between the positive electrode 6 including the positive electrode active material layer 2 and the positive electrode current collector 4, the negative electrode 7 including the negative electrode active material layer 3 and the negative electrode current collector 5, and the positive electrode 6 and the negative electrode 7.
  • An electrolytic solution 1 is included.
  • the electrolytic solution is as described above.
  • the positive electrode, the negative electrode, the separator, and the battery case, which are components of the lithium secondary battery according to the present invention, will be described in detail.
  • the positive electrode of the lithium secondary battery according to the present invention preferably has a positive electrode active material layer having a positive electrode active material, and is usually connected to the positive electrode current collector and the positive electrode current collector. It has a positive electrode lead.
  • the lithium secondary battery which concerns on this invention is a lithium air battery, it has an air electrode containing an air electrode layer instead of the said positive electrode.
  • the positive electrode active material layer As a positive electrode is employ
  • adopted Specific examples of the positive electrode active material used in the present invention include LiCoO 2 , LiNi 1/3 Mn 1/3 Co 1/3 O 2 , LiNiPO 4 , LiMnPO 4 , LiNiO 2 , LiMn 2 O 4 , LiCoMnO 4. , Li 2 NiMn 3 O 8 , Li 3 Fe 2 (PO 4 ) 3 and Li 3 V 2 (PO 4 ) 3 .
  • LiCoO 2 is preferably used as the positive electrode active material.
  • the thickness of the positive electrode active material layer used in the present invention varies depending on the intended use of the lithium secondary battery, but is preferably in the range of 10 ⁇ m to 250 ⁇ m, and in the range of 20 ⁇ m to 200 ⁇ m. It is particularly preferred that it is in the range of 30 ⁇ m to 150 ⁇ m.
  • the average particle diameter of the positive electrode active material is, for example, preferably in the range of 1 ⁇ m to 50 ⁇ m, more preferably in the range of 1 ⁇ m to 20 ⁇ m, and particularly preferably in the range of 3 ⁇ m to 5 ⁇ m. If the average particle size of the positive electrode active material is too small, the handleability may be deteriorated. If the average particle size of the positive electrode active material is too large, it may be difficult to obtain a flat positive electrode active material layer. Because.
  • the average particle diameter of the positive electrode active material can be determined by measuring and averaging the particle diameter of the active material carrier observed with, for example, a scanning electron microscope (SEM).
  • the positive electrode active material layer may contain a conductive material, a binder, and the like as necessary.
  • the conductive material included in the positive electrode active material layer used in the present invention is not particularly limited as long as the conductivity of the positive electrode active material layer can be improved.
  • carbon black such as acetylene black and ketjen black Etc.
  • the content of the conductive material in the positive electrode active material layer varies depending on the type of the conductive material, but is usually in the range of 1% by mass to 10% by mass.
  • binder contained in the positive electrode active material layer used in the present invention examples include polyvinylidene fluoride (PVDF) and polytetrafluoroethylene (PTFE). Further, the content of the binder in the positive electrode active material layer may be an amount that can fix the positive electrode active material or the like, and is preferably smaller. The content of the binder is usually in the range of 1% by mass to 10% by mass.
  • the positive electrode current collector used in the present invention has a function of collecting the positive electrode active material layer.
  • Examples of the material for the positive electrode current collector include aluminum, SUS, nickel, iron, and titanium. Of these, aluminum and SUS are preferable.
  • As a shape of a positive electrode electrical power collector foil shape, plate shape, mesh shape etc. can be mentioned, for example, Foil shape is preferable.
  • the electrode active material layer of at least one of the positive electrode and the negative electrode can also be configured to contain at least an electrode active material and an electrode electrolyte.
  • an electrode electrolyte a solid electrolyte such as a solid oxide electrolyte or a solid sulfide electrolyte, the above-described polymer electrolyte, gel electrolyte, or the like can be used.
  • the method for producing the positive electrode used in the present invention is not particularly limited as long as it is a method capable of obtaining the positive electrode.
  • Air electrode layer Hereinafter, the case where the air electrode which has an air electrode layer as a positive electrode is employ
  • the air electrode layer used in the present invention contains at least a conductive material. Furthermore, you may contain at least one of a catalyst and a binder as needed.
  • the conductive material used for the air electrode layer used in the present invention is not particularly limited as long as it has conductivity, and examples thereof include a carbon material.
  • the carbon material may have a porous structure or may not have a porous structure.
  • the carbon material preferably has a porous structure. This is because the specific surface area is large and many reaction fields can be provided.
  • Specific examples of the carbon material having a porous structure include mesoporous carbon.
  • specific examples of the carbon material having no porous structure include graphite, acetylene black, carbon nanotube, and carbon fiber.
  • the content of the conductive material in the air electrode layer is, for example, preferably in the range of 65% by mass to 99% by mass, and more preferably in the range of 75% by mass to 95% by mass. If the content of the conductive material is too small, the reaction field may decrease and the battery capacity may be reduced. If the content of the conductive material is too large, the content of the catalyst is relatively reduced and sufficient. This is because it may not be possible to exert a proper catalytic function.
  • the catalyst used for the air electrode layer used in the present invention examples include cobalt phthalocyanine and manganese dioxide.
  • the catalyst content in the air electrode layer is, for example, preferably in the range of 1% by mass to 30% by mass, and more preferably in the range of 5% by mass to 20% by mass. If the catalyst content is too low, sufficient catalytic function may not be achieved. If the catalyst content is too high, the content of the conductive material is relatively reduced, the reaction field is reduced, and the battery capacity is reduced. This is because there is a possibility that a decrease in the number of times will occur. From the viewpoint that the electrode reaction is performed more smoothly, the conductive material described above preferably supports a catalyst.
  • the air electrode layer may contain at least a conductive material, but preferably further contains a binder for fixing the conductive material.
  • a binder for fixing the conductive material As the specific binder, those described in the above-mentioned “positive electrode active material layer” can be used.
  • the content of the binder in the air electrode layer is not particularly limited. For example, it is preferably 30% by mass or less, and more preferably in the range of 1% by mass to 10% by mass.
  • the thickness of the air electrode layer varies depending on the use of the air battery, but is preferably in the range of 2 ⁇ m to 500 ⁇ m, and more preferably in the range of 5 ⁇ m to 300 ⁇ m.
  • the air electrode current collector used in the present invention collects current in the air electrode layer.
  • the material for the air electrode current collector is not particularly limited as long as it has conductivity, and examples thereof include stainless steel, nickel, aluminum, iron, titanium, and carbon.
  • Examples of the shape of the air electrode current collector include a foil shape, a plate shape, and a mesh (grid) shape.
  • the shape of an air electrode electrical power collector is a mesh form. This is because the current collection efficiency is excellent.
  • a mesh-shaped air electrode current collector is disposed inside the air electrode layer.
  • the secondary battery of the present invention may have another air electrode current collector (for example, a foil-shaped current collector) that collects electric charges collected by the mesh-shaped air electrode current collector. good.
  • a battery case to be described later may also have the function of an air electrode current collector.
  • the thickness of the air electrode current collector is preferably, for example, in the range of 10 ⁇ m to 1000 ⁇ m, and more preferably in the range of 20 ⁇ m to 400 ⁇ m.
  • the negative electrode in the lithium secondary battery according to the present invention preferably has a negative electrode active material layer containing a negative electrode active material, and is usually connected to the negative electrode current collector and the negative electrode current collector in addition to this.
  • the negative electrode lead is provided.
  • the negative electrode layer in the lithium secondary battery according to the present invention contains a negative electrode active material.
  • the negative electrode active material used for the negative electrode active material layer is not particularly limited as long as it can occlude / release lithium ions.
  • metal lithium, lithium alloy, metal oxide, metal sulfide, metal nitride, and Examples thereof include carbon materials such as graphite.
  • the negative electrode active material may be in the form of a powder or a thin film.
  • the alloy having a lithium element include a lithium aluminum alloy, a lithium tin alloy, a lithium lead alloy, and a lithium silicon alloy.
  • a metal oxide which has a lithium element lithium titanium oxide etc. can be mentioned, for example.
  • metal nitride containing a lithium element examples include lithium cobalt nitride, lithium iron nitride, and lithium manganese nitride. Further, lithium coated with a solid electrolyte can also be used for the negative electrode layer.
  • the negative electrode layer may contain only a negative electrode active material, or may contain at least one of a conductive material and a binder in addition to the negative electrode active material.
  • a negative electrode layer containing only the negative electrode active material can be obtained.
  • a negative electrode layer having a negative electrode active material and a binder can be obtained.
  • the conductive material and the binder are the same as those described in the section “Air electrode” described above, and thus the description thereof is omitted here.
  • the thickness of the negative electrode active material layer is not particularly limited, but is preferably in the range of 10 ⁇ m to 100 ⁇ m, and more preferably in the range of 10 ⁇ m to 50 ⁇ m.
  • negative electrode current collector As the material and shape of the negative electrode current collector, the same materials and shapes as those of the positive electrode current collector described above can be employed.
  • the battery according to the present invention has a structure in which a laminate in which the order of positive electrode-electrolyte-negative electrode is repeatedly stacked, from the viewpoint of safety, the positive electrode and the negative electrode belonging to different laminates are stacked. It is preferable to have a separator in between.
  • the separator include porous films such as polyethylene and polypropylene; and nonwoven fabrics such as a resin nonwoven fabric and a glass fiber nonwoven fabric. These materials that can be used for the separator can also be used as a support material for the electrolytic solution by impregnating the above-described electrolytic solution.
  • the lithium secondary battery according to the present invention usually has a battery case that houses a positive electrode, an electrolytic solution, a negative electrode, and the like.
  • the shape of the battery case include a coin type, a flat plate type, a cylindrical type, and a laminate type.
  • the battery case may be an open-air battery case or a sealed battery case.
  • An open-air battery case is a battery case having a structure in which at least the air electrode layer can sufficiently come into contact with the atmosphere.
  • the battery case is a sealed battery case, it is preferable to provide a gas (air) introduction pipe and an exhaust pipe in the sealed battery case.
  • the gas to be introduced / exhausted preferably has a high oxygen concentration, and more preferably pure oxygen.
  • Example 1 N- (2-methoxyethyl) -N-methylpiperidinium bis (trifluoromethanesulfonyl) imide represented by the following formula (3) is mixed with lithium bis (trifluoromethanesulfonyl) imide at a concentration of 0.5 mol / kg. Thus, the electrolyte solution of Example 1 was prepared.
  • Example 2 N, N-diethyl-N-methyl-N- (2-methoxyethyl) ammonium bis (trifluoromethanesulfonyl) imide represented by the following formula (4) is mixed with 0.5 mol / liter of lithium bis (trifluoromethanesulfonyl) imide.
  • the electrolyte solution of Example 2 was prepared by dissolving to a concentration of kg.
  • FIG. 2 is a bar graph comparing the time during which lithium was deposited uniformly in the case where the electrolytic solutions of Examples 1 and 2 and Comparative Examples 1 and 2 were used.
  • the vertical axis of FIG. 2 represents the logarithm of the time during which lithium was deposited uniformly.
  • Example 1 and Comparative Example 1 which are electrolytic solutions having cations having a piperidine ring structure, are compared. From FIG. 2, in the electrolytic solution of Example 1 having one ether group in the side chain, the time for which lithium was uniformly deposited was 4200 seconds. On the other hand, in the electrolytic solution of Comparative Example 1 that does not have an ether group in the cation structure, the time during which lithium is uniformly deposited is 600 seconds.
  • Example 1 the time during which lithium was uniformly deposited was 7 times longer than that in Comparative Example 1.
  • Example 2 and Comparative Example 2 which are electrolytes having an alkylammonium cation will be compared. From FIG. 2, in the electrolytic solution of Example 2 having one ether group in the side chain, the time during which lithium was uniformly deposited was 60 seconds. On the other hand, in the electrolyte solution of Comparative Example 2 that does not have an ether group in the cation structure, the time during which lithium is uniformly deposited is 30 seconds. Therefore, in Example 2, the time during which lithium was uniformly deposited was twice as long as that in Comparative Example 2. From these results, the electrolyte solution having a cation having one or more ether groups in the structure is several times longer than the electrolyte solution having a cation having no ether group in the structure. I understand that
  • Example 1 compared with Example 2, the time during which lithium was uniformly deposited was 70 times longer. Therefore, it can be seen that the ammonium cation having a cyclic structure has a longer time for uniformly depositing lithium than the ammonium cation having only a linear alkyl group. Further, when the comparison results of Example 1 and Comparative Example 1 and the comparison results of Example 2 and Comparative Example 2 are further compared, the ammonium cation having a cyclic structure is more than the ammonium cation having only a linear alkyl group. However, it can be seen that the effect of uniform precipitation of lithium by introducing an ether group is more remarkable.

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Abstract

La présente invention concerne une batterie secondaire au lithium capable de réduire au minimum la précipitation du lithium. La batterie secondaire au lithium est pourvue d'au moins une électrode positive, d'une électrode négative, et d'un électrolyte liquide disposé entre l'électrode positive et l'électrode négative, et est caractérisée en ce que l'électrode négative contient du lithium, et l'électrolyte contient un liquide ionique et un sel de lithium, le liquide ionique comprenant des cations et des contre-anions. Les cations présentent au moins un groupe éther dans leur structure, et les contre-anions sont inertes par rapport au lithium.
PCT/JP2010/063119 2010-08-03 2010-08-03 Batterie secondaire au lithium WO2012017520A1 (fr)

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WO2013051309A1 (fr) * 2011-10-07 2013-04-11 トヨタ自動車株式会社 Solution électrolytique pour élément au lithium-air
CN103387731A (zh) * 2012-05-08 2013-11-13 海洋王照明科技股份有限公司 凝胶聚合物电解质膜及其制备方法
CN104078721A (zh) * 2013-03-29 2014-10-01 丰田自动车株式会社 用于锂-空气电池的电解质溶液

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WO2005003108A1 (fr) * 2003-07-01 2005-01-13 Otsuka Chemical Co., Ltd. Sel d'ammonium quaternaire, electrolyte, et dispositif electrochimique
WO2005043668A1 (fr) * 2003-11-04 2005-05-12 Stella Chemifa Corporation Solution electrolytique et accumulateur au lithium a electrolyte non aqueux

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WO2013051309A1 (fr) * 2011-10-07 2013-04-11 トヨタ自動車株式会社 Solution électrolytique pour élément au lithium-air
CN103387731A (zh) * 2012-05-08 2013-11-13 海洋王照明科技股份有限公司 凝胶聚合物电解质膜及其制备方法
CN104078721A (zh) * 2013-03-29 2014-10-01 丰田自动车株式会社 用于锂-空气电池的电解质溶液
JP2014197454A (ja) * 2013-03-29 2014-10-16 トヨタ自動車株式会社 リチウム空気電池用の電解液

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