CN106058223A - Modified polyimide solar energy lithium battery cathode material and preparation method thereof - Google Patents

Modified polyimide solar energy lithium battery cathode material and preparation method thereof Download PDF

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CN106058223A
CN106058223A CN201610687439.5A CN201610687439A CN106058223A CN 106058223 A CN106058223 A CN 106058223A CN 201610687439 A CN201610687439 A CN 201610687439A CN 106058223 A CN106058223 A CN 106058223A
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modified polyimide
solar energy
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positive electrode
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周新凤
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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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/362—Composites
    • H01M4/364—Composites as mixtures
    • 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
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/60—Selection of substances as active materials, active masses, active liquids of organic compounds
    • H01M4/602—Polymers
    • 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

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  • General Chemical & Material Sciences (AREA)
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  • Battery Electrode And Active Subsutance (AREA)

Abstract

The invention discloses a modified polyimide solar energy lithium battery cathode material and a preparation method thereof. The modified polyimide solar energy lithium battery cathode material includes the main raw materials of, by weight, 32-45 parts of modified polyimide, 12-18 parts of lithium acetate, 8-10 parts of diacetoxydimethylsilane, 2-6 parts of poly-sulfurized chloranilic acid, 2-6 parts of trihydroxymethyl amino methane and 0.5-1.4 parts of nano potassium sulfate. The preparation method includes the steps of mixing the polyimide with polyphenylene sulfide, ferric sulfate, tin dioxide and melamine, calcining the mixture at 520 DEG C for 1.5 h, and vacuum-drying a product. A lithium battery prepared with the cathode material has excellent cycle performance, wherein the capacity is maintained to be more than 90% after 2000 times of 1C charging/discharging cycles at normal temperature and discharge quantity under 6C multiple is more than 98% of the 1C capacity. The lithium battery is free of fire and explosion under 3C/10V over-charging test and has excellent high-temperature cycle, wherein the capacity is maintained to be more than 88% after 1000 times of 1C charging/discharging cycles at 60 DEG C. The lithium battery has excellent safety performance, and is free of fire and explosion under puncture, extrusion, over-charging, over-discharging and the like tests.

Description

A kind of modified polyimide solar energy lithium electricity positive electrode and preparation method thereof
Technical field
The present invention relates to a kind of lithium electro-technical field, specifically a kind of modified polyimide solar energy lithium electricity positive electrode and Its preparation method.
Background technology
Lithium ion battery has that running voltage is high, specific energy high, has extended cycle life, electric discharge lightweight, white less, memoryless effect Should be with cost performance advantages of higher, it has also become high power electric vehicle, artificial satellite, the master of Aero-Space lamp field rechargeable type power supply Object to be selected.It addition, the system of positive and negative pole material composition has a common feature to discharge the later stage exactly, especially at electric discharge knot Shu Shi, voltage declines very fast, namely inside this voltage range, the capacity of lithium ion battery almost without.
Summary of the invention
It is an object of the invention to provide a kind of modified polyimide solar energy lithium electricity positive electrode and preparation method thereof, with The problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of modified polyimide solar energy lithium electricity positive electrode, according to the primary raw material of weight portion be: modified polyamides is sub- Amine 32-45 part, lithium acetate 12-18 part, dimethylsilane glycol diacetate 8-10 part, polysulfideization slowly acid 2-6 part, trihydroxy methyl Aminomethane 2-6 part, nanometer potassium sulfate 0.5-1.4 part；The preparation method of described modified polyimide is: by polyimides with poly- Diphenyl sulfide, iron sulfate, tin ash, tripolycyanamide mix, and calcine 1.5h, be vacuum dried and get final product at 520 DEG C.
As the further scheme of the present invention: described modified polyimide solar energy lithium electricity positive electrode, according to weight portion Primary raw material be: modified polyimide 37-42 part, lithium acetate 14-17 part, dimethylsilane glycol diacetate 8-10 part, Polysulfideization slowly acid 2-6 part, trishydroxymethylaminomethane 2-6 part, nanometer potassium sulfate 0.8-1.1 part；Described modified polyimide Preparation method is: mixed with polyphenylene sulfide, iron sulfate, tin ash, tripolycyanamide by polyimides, calcines 1.5h at 520 DEG C, It is vacuum dried and get final product.
As the further scheme of the present invention: described modified polyimide solar energy lithium electricity positive electrode, according to weight portion Primary raw material be: the slowly acid of modified polyimide 40 parts, lithium acetate 16 parts, dimethylsilane glycol diacetate 9 parts, polysulfideization 4 parts, trishydroxymethylaminomethane 5 parts, nanometer potassium sulfate 0.9 part；The preparation method of described modified polyimide is: polyamides is sub- Amine mixes with polyphenylene sulfide, iron sulfate, tin ash, tripolycyanamide, calcines 1.5h, be vacuum dried and get final product at 520 DEG C.
As the further scheme of the present invention: the purity of described polyimides is more than 99.9%.
As the further scheme of the present invention: the mesh number of described trishydroxymethylaminomethane is 1200 mesh.
As the further scheme of the present invention: the mesh number of described iron sulfate is 1200 mesh.
The preparation method of a kind of modified polyimide solar energy lithium electricity positive electrode, concretely comprises the following steps:
(1) first, modified polyimide is mixed with lithium acetate, the most under nitrogen protection, is heated to 150 DEG C-200 DEG C And stir 60min-90min, make semi-finished product；
(2) last, by semi-finished product and dimethylsilane glycol diacetate, polysulfideization slowly acid, trishydroxymethylaminomethane, Nanometer potassium sulfate carries out mixing stirring, and speed of agitator is 400r/min, and mixing time is 45min, carries out melted mixing subsequently, very Sky is drying to obtain.
As the further scheme of the present invention: step (1) is heated to 180 DEG C and stirs 80min.
Compared with prior art, the invention has the beneficial effects as follows:
Prepared lithium ion battery has the cycle performance of excellence, and under room temperature, 2000 capacity of 1C charge and discharge circulation are maintained at More than 90%；Under 6C multiplying power, electric discharge is more than the 98% of 1C capacity；3C/10V overcharges test, and battery is the most on fire does not explodes；High temperature follows Ring is excellent, and at 60 DEG C, 1000 capacity of 1C charge and discharge circulation are maintained at more than 88%；There is good security performance, acupuncture, extruding, Overcharge, cross put etc. test do not explode, the most on fire.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based in the present invention Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all Belong to the scope of protection of the invention.
Embodiment 1
A kind of modified polyimide solar energy lithium electricity positive electrode, according to the primary raw material of weight portion be: modified polyamides is sub- Amine 32 parts, lithium acetate 12 parts, dimethylsilane glycol diacetate 8 parts, polysulfideization slowly 2 parts, trishydroxymethylaminomethane 2 of acid Part, nanometer potassium sulfate 0.5 part；The preparation method of described modified polyimide is: by polyimides and polyphenylene sulfide, iron sulfate, Tin ash, tripolycyanamide mix, and calcine 1.5h, be vacuum dried and get final product at 520 DEG C；The purity of described polyimides is 99.9% Above；The mesh number of described trishydroxymethylaminomethane is 1200 mesh；The mesh number of described iron sulfate is 1200 mesh.
The preparation method of a kind of modified polyimide solar energy lithium electricity positive electrode, concretely comprises the following steps:
(1) first, modified polyimide is mixed with lithium acetate, the most under nitrogen protection, is heated to 150 DEG C and stirs 60min, makes semi-finished product；
(2) last, by semi-finished product and dimethylsilane glycol diacetate, polysulfideization slowly acid, trishydroxymethylaminomethane, Nanometer potassium sulfate carries out mixing stirring, and speed of agitator is 400r/min, and mixing time is 45min, carries out melted mixing subsequently, very Sky is drying to obtain.
Embodiment 2
A kind of modified polyimide solar energy lithium electricity positive electrode, according to the primary raw material of weight portion be: modified polyamides is sub- Amine 37 parts, lithium acetate 14 parts, dimethylsilane glycol diacetate 8 parts, polysulfideization slowly 2 parts, trishydroxymethylaminomethane 2 of acid Part, nanometer potassium sulfate 0.8 part；The preparation method of described modified polyimide is: by polyimides and polyphenylene sulfide, iron sulfate, Tin ash, tripolycyanamide mix, and calcine 1.5h, be vacuum dried and get final product at 520 DEG C；The purity of described polyimides is 99.9% Above；The mesh number of described trishydroxymethylaminomethane is 1200 mesh；The mesh number of described iron sulfate is 1200 mesh.
The preparation method of a kind of modified polyimide solar energy lithium electricity positive electrode, concretely comprises the following steps:
(1) first, modified polyimide is mixed with lithium acetate, the most under nitrogen protection, is heated to 150 DEG C and stirs 60min, makes semi-finished product；
(2) last, by semi-finished product and dimethylsilane glycol diacetate, polysulfideization slowly acid, trishydroxymethylaminomethane, Nanometer potassium sulfate carries out mixing stirring, and speed of agitator is 400r/min, and mixing time is 45min, carries out melted mixing subsequently, very Sky is drying to obtain.
Embodiment 3
A kind of modified polyimide solar energy lithium electricity positive electrode, according to the primary raw material of weight portion be: modified polyamides is sub- Amine 40 parts, lithium acetate 16 parts, dimethylsilane glycol diacetate 9 parts, polysulfideization slowly 4 parts, trishydroxymethylaminomethane 5 of acid Part, nanometer potassium sulfate 0.9 part；The preparation method of described modified polyimide is: by polyimides and polyphenylene sulfide, iron sulfate, Tin ash, tripolycyanamide mix, and calcine 1.5h, be vacuum dried and get final product at 520 DEG C；The purity of described polyimides is 99.9% Above；The mesh number of described trishydroxymethylaminomethane is 1200 mesh；The mesh number of described iron sulfate is 1200 mesh.
The preparation method of a kind of modified polyimide solar energy lithium electricity positive electrode, concretely comprises the following steps:
(1) first, modified polyimide is mixed with lithium acetate, the most under nitrogen protection, is heated to 180 DEG C and stirs 80min, makes semi-finished product；
(2) last, by semi-finished product and dimethylsilane glycol diacetate, polysulfideization slowly acid, trishydroxymethylaminomethane, Nanometer potassium sulfate carries out mixing stirring, and speed of agitator is 400r/min, and mixing time is 45min, carries out melted mixing subsequently, very Sky is drying to obtain.
Embodiment 4
A kind of modified polyimide solar energy lithium electricity positive electrode, according to the primary raw material of weight portion be: modified polyamides is sub- Amine 42 parts, lithium acetate 17 parts, dimethylsilane glycol diacetate 10 parts, polysulfideization slowly 6 parts, trishydroxymethylaminomethane 6 of acid Part, nanometer potassium sulfate 1.1 parts；The preparation method of described modified polyimide is: by polyimides and polyphenylene sulfide, iron sulfate, Tin ash, tripolycyanamide mix, and calcine 1.5h, be vacuum dried and get final product at 520 DEG C；The purity of described polyimides is 99.9% Above；The mesh number of described trishydroxymethylaminomethane is 1200 mesh；The mesh number of described iron sulfate is 1200 mesh.
The preparation method of a kind of modified polyimide solar energy lithium electricity positive electrode, concretely comprises the following steps:
(1) first, modified polyimide is mixed with lithium acetate, the most under nitrogen protection, is heated to 200 DEG C and stirs 90min, makes semi-finished product；
(2) last, by semi-finished product and dimethylsilane glycol diacetate, polysulfideization slowly acid, trishydroxymethylaminomethane, Nanometer potassium sulfate carries out mixing stirring, and speed of agitator is 400r/min, and mixing time is 45min, carries out melted mixing subsequently, very Sky is drying to obtain.
Embodiment 5
A kind of modified polyimide solar energy lithium electricity positive electrode, according to the primary raw material of weight portion be: modified polyamides is sub- Amine 45 parts, lithium acetate 18 parts, dimethylsilane glycol diacetate 10 parts, polysulfideization slowly 6 parts, trishydroxymethylaminomethane 6 of acid Part, nanometer potassium sulfate 1.4 parts；The preparation method of described modified polyimide is: by polyimides and polyphenylene sulfide, iron sulfate, Tin ash, tripolycyanamide mix, and calcine 1.5h, be vacuum dried and get final product at 520 DEG C；The purity of described polyimides is 99.9% Above；The mesh number of described trishydroxymethylaminomethane is 1200 mesh；The mesh number of described iron sulfate is 1200 mesh.
The preparation method of a kind of modified polyimide solar energy lithium electricity positive electrode, concretely comprises the following steps:
(1) first, modified polyimide is mixed with lithium acetate, the most under nitrogen protection, is heated to 200 DEG C and stirs 90min, makes semi-finished product；
(2) last, by semi-finished product and dimethylsilane glycol diacetate, polysulfideization slowly acid, trishydroxymethylaminomethane, Nanometer potassium sulfate carries out mixing stirring, and speed of agitator is 400r/min, and mixing time is 45min, carries out melted mixing subsequently, very Sky is drying to obtain.
Comparative example 1
A kind of polyimides solar energy lithium electricity positive electrode, according to the primary raw material of weight portion be: polyimides 40 parts, vinegar Acid lithium 16 parts, dimethylsilane glycol diacetate 9 parts, trishydroxymethylaminomethane 5 parts, nanometer potassium sulfate 0.9 part；Described poly- Imido purity is more than 99.9%；The mesh number of described trishydroxymethylaminomethane is 1200 mesh.
The preparation method of a kind of polyimides solar energy lithium electricity positive electrode, concretely comprises the following steps:
(1) first, polyimides is mixed with lithium acetate, the most under nitrogen protection, is heated to 180 DEG C and stirs 80min, makes semi-finished product；
(2) last, by semi-finished product and dimethylsilane glycol diacetate, trishydroxymethylaminomethane, nanometer potassium sulfate Carrying out mixing stirring, speed of agitator is 400r/min, and mixing time is 45min, carries out melted mixing subsequently, is drying to obtain.
Comparative example 2
A kind of polyimides solar energy lithium electricity positive electrode, according to the primary raw material of weight portion be: polyimides 40 parts, vinegar Acid lithium 16 parts, dimethylsilane glycol diacetate 9 parts；The purity of described polyimides is more than 99.9%.
The preparation method of a kind of polyimides solar energy lithium electricity positive electrode, concretely comprises the following steps:
(1) first, polyimides is mixed with lithium acetate, the most under nitrogen protection, is heated to 180 DEG C and stirs 80min, makes semi-finished product；
(2) last, semi-finished product and dimethylsilane glycol diacetate are carried out mixing stirring, speed of agitator is 400r/ Min, mixing time is 45min, carries out melted mixing subsequently, is drying to obtain.
Comparative example 3
A kind of modified polyimide solar energy lithium electricity positive electrode, according to the primary raw material of weight portion be: modified polyamides is sub- Amine 40 parts, lithium acetate 16 parts, dimethylsilane glycol diacetate 9 parts, trishydroxymethylaminomethane 5 parts, nanometer potassium sulfate 0.9 Part；The preparation method of described modified polyimide is: by polyimides and polyphenylene sulfide, iron sulfate, tin ash, tripolycyanamide Mixing, calcines 1.5h, is vacuum dried and get final product at 520 DEG C；The purity of described polyimides is more than 99.9%；Described trihydroxy methyl The mesh number of aminomethane is 1200 mesh；The mesh number of described iron sulfate is 1200 mesh.
The preparation method of a kind of modified polyimide solar energy lithium electricity positive electrode, concretely comprises the following steps:
(1) first, modified polyimide is mixed with lithium acetate, the most under nitrogen protection, is heated to 180 DEG C and stirs 80min, makes semi-finished product；
(2) last, by semi-finished product and dimethylsilane glycol diacetate, trishydroxymethylaminomethane, nanometer potassium sulfate Carrying out mixing stirring, speed of agitator is 400r/min, and mixing time is 45min, carries out melted mixing subsequently, is drying to obtain.
Test experience
Solar energy lithium electricity positive electrode embodiment 1-5 and comparative example 1-3 prepared is prepared as 1665132 model lithium ions Electrokinetic cell (the lamination soft-package battery of model H16*W65*L132mm), compacted density is at 3.0g/cm3Above, volume energy is close Degree is at more than 450Wh/L；Battery core is under 3.0V-4.2V voltage, and 1C electric discharge gram volume plays more than 120mAh/g.
Prepared lithium ion battery has the cycle performance of excellence, and under room temperature, 2000 capacity of 1C charge and discharge circulation are maintained at More than 90%；Under 6C multiplying power, electric discharge is more than the 98% of 1C capacity；3C/10V overcharges test, and battery is the most on fire does not explodes；High temperature follows Ring is excellent, and at 60 DEG C, 1000 capacity of 1C charge and discharge circulation are maintained at more than 88%；There is good security performance, acupuncture, extruding, Overcharge, cross put etc. test do not explode, the most on fire.Concrete test result is shown in Table 1:
Table 1
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim Change is included in the present invention.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only wraps Containing an independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should Description can also be formed those skilled in the art through appropriately combined as an entirety, the technical scheme in each embodiment May be appreciated other embodiments.

Claims (8)

1. a modified polyimide solar energy lithium electricity positive electrode, it is characterised in that according to the primary raw material of weight portion be: change Property polyimides 32-45 part, lithium acetate 12-18 part, dimethylsilane glycol diacetate 8-10 part, polysulfideization slowly acid 2-6 part, Trishydroxymethylaminomethane 2-6 part, nanometer potassium sulfate 0.5-1.4 part；The preparation method of described modified polyimide is: by polyamides Imines mixes with polyphenylene sulfide, iron sulfate, tin ash, tripolycyanamide, calcines 1.5h, be vacuum dried and get final product at 520 DEG C.
Modified polyimide solar energy lithium electricity positive electrode the most according to claim 1, it is characterised in that described modification gathers Acid imide solar energy lithium electricity positive electrode, according to the primary raw material of weight portion be: modified polyimide 37-42 part, lithium acetate 14- 17 parts, dimethylsilane glycol diacetate 8-10 part, polysulfideization slowly acid 2-6 part, trishydroxymethylaminomethane 2-6 part, nanometer Potassium sulfate 0.8-1.1 part；The preparation method of described modified polyimide is: by polyimides and polyphenylene sulfide, iron sulfate, dioxy Change stannum, tripolycyanamide mixing, calcine 1.5h at 520 DEG C, be vacuum dried and get final product.
Modified polyimide solar energy lithium electricity positive electrode the most according to claim 1 and 2, it is characterised in that described in change Property polyimides solar energy lithium electricity positive electrode, according to the primary raw material of weight portion be: modified polyimide 40 parts, lithium acetate 16 Part, dimethylsilane glycol diacetate 9 parts, polysulfideization slowly acid 4 parts, trishydroxymethylaminomethane 5 parts, nanometer potassium sulfate 0.9 Part；The preparation method of described modified polyimide is: by polyimides and polyphenylene sulfide, iron sulfate, tin ash, tripolycyanamide Mixing, calcines 1.5h, is vacuum dried and get final product at 520 DEG C.
Modified polyimide solar energy lithium electricity positive electrode the most according to claim 3, it is characterised in that described polyamides is sub- The purity of amine is more than 99.9%.
Modified polyimide solar energy lithium electricity positive electrode the most according to claim 4, it is characterised in that described three hydroxyl first The mesh number of base aminomethane is 1200 mesh.
Modified polyimide solar energy lithium electricity positive electrode the most according to claim 5, it is characterised in that described iron sulfate Mesh number be 1200 mesh.
7. a preparation method for the modified polyimide solar energy lithium electricity positive electrode as described in claim 1-6 is arbitrary, its It is characterised by, concretely comprises the following steps:
(1) first, modified polyimide is mixed with lithium acetate, the most under nitrogen protection, is heated to 150 DEG C-200 DEG C and stirs Mix 60min-90min, make semi-finished product；
(2) last, by semi-finished product and dimethylsilane glycol diacetate, polysulfideization slowly acid, trishydroxymethylaminomethane, nanometer Potassium sulfate carries out mixing stirring, and speed of agitator is 400r/min, and mixing time is 45min, carries out melted mixing subsequently, and vacuum is done Dry and get final product.
The preparation method of modified polyimide solar energy lithium electricity positive electrode the most according to claim 7, it is characterised in that Step (1) is heated to 180 DEG C and stirs 80min.
CN201610687439.5A 2016-08-18 2016-08-18 Modified polyimide solar energy lithium battery cathode material and preparation method thereof Pending CN106058223A (en)

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Citations (3)

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Publication number Priority date Publication date Assignee Title
CN1476122A (en) * 2003-07-30 2004-02-18 黑龙江中强能源科技有限公司 Polymer lithium ion battery and its manufacturing method
US20080206648A1 (en) * 2003-07-29 2008-08-28 Allain Vallee Polyimide-Based Lithium Metal Battery
CN104766956A (en) * 2015-05-06 2015-07-08 田东 Preparation method for nickel-coated lithium iron phosphate positive pole material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080206648A1 (en) * 2003-07-29 2008-08-28 Allain Vallee Polyimide-Based Lithium Metal Battery
CN1476122A (en) * 2003-07-30 2004-02-18 黑龙江中强能源科技有限公司 Polymer lithium ion battery and its manufacturing method
CN104766956A (en) * 2015-05-06 2015-07-08 田东 Preparation method for nickel-coated lithium iron phosphate positive pole material

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
HAIPING WU ET AL: "An organic cathode material based on a polyimide/CNT nanocomposite for lithium ion batteries", 《JOURNAL OF MATERIALS CHEMISTRY A》 *
左然: "《可再生能源概论》", 31 May 2015, 机械工业出版社 *
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Application publication date: 20161026