CN106099070A - A kind of modified phosphate ferrum lithium electricity positive electrode and preparation method thereof - Google Patents

A kind of modified phosphate ferrum lithium electricity positive electrode and preparation method thereof Download PDF

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CN106099070A
CN106099070A CN201610686078.2A CN201610686078A CN106099070A CN 106099070 A CN106099070 A CN 106099070A CN 201610686078 A CN201610686078 A CN 201610686078A CN 106099070 A CN106099070 A CN 106099070A
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modified phosphate
parts
positive electrode
phosphate ferrum
lithium
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周新凤
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/362Composites
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/58Selection 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
    • H01M4/5825Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Abstract

The invention discloses a kind of modified phosphate ferrum lithium electricity positive electrode and preparation method thereof, described modified phosphate ferrum lithium electricity positive electrode, according to the primary raw material of weight portion be: modified phosphate ferrum lithium 35 45 parts, lithium acetate 10 18 parts, oxolane 8 10 parts, polysulfideization slowly acid 26 parts, trishydroxymethylaminomethane 26 parts, nanometer sodium citrate 0.5 1.4 parts;The preparation method of described modified phosphate ferrum lithium is: mixed with vinyltrimethoxy silane, calcium lactate, tin ash, poly-furfural by LiFePO4, calcines 1h, be vacuum dried and get final product at 702 DEG C.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 circulation 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, extrude, overcharge, cross put etc. test do not explode, the most on fire.

Description

A kind of modified phosphate ferrum 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 phosphate ferrum lithium electricity positive electrode and preparation side thereof 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 phosphate ferrum lithium electricity positive electrode and preparation method thereof, above-mentioned to solve The problem proposed in background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of modified phosphate ferrum lithium electricity positive electrode, according to the primary raw material of weight portion be: modified phosphate ferrum lithium 35-45 Part, lithium acetate 10-18 part, oxolane 8-10 part, polysulfideization slowly acid 2-6 part, trishydroxymethylaminomethane 2-6 part, nanometer lemon Lemon acid sodium 0.5-1.4 part;The preparation method of described modified phosphate ferrum lithium is: by LiFePO4 and vinyltrimethoxy silane, Calcium lactate, tin ash, poly-furfural mix, and calcine 1h, be vacuum dried and get final product at 702 DEG C.
As the further scheme of the present invention: described modified phosphate ferrum lithium electricity positive electrode, the most former according to weight portion Material is: modified phosphate ferrum lithium 38-42 part, lithium acetate 14-17 part, oxolane 8-10 part, polysulfideization slowly acid 2-6 part, three hydroxyl first Base aminomethane 2-6 part, nanometer sodium citrate 0.8-1.1 part;The preparation method of described modified phosphate ferrum lithium is: by LiFePO4 Mix with vinyltrimethoxy silane, calcium lactate, tin ash, poly-furfural, calcine 1h at 702 DEG C, be vacuum dried and get final product.
As the further scheme of the present invention: described modified phosphate ferrum lithium electricity positive electrode, the most former according to weight portion Material is: modified phosphate ferrum lithium 40 parts, lithium acetate 16 parts, oxolane 9 parts, polysulfideization slowly 4 parts, trishydroxymethylaminomethane 5 of acid Part, nanometer sodium citrate 0.9 part;The preparation method of described modified phosphate ferrum lithium is: by LiFePO4 and vinyl trimethoxy Silane, calcium lactate, tin ash, poly-furfural mix, and calcine 1h, be vacuum dried and get final product at 702 DEG C.
As the further scheme of the present invention: the purity of described LiFePO4 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 calcium lactate is 1200 mesh.
The preparation method of a kind of modified phosphate ferrum lithium electricity positive electrode, concretely comprises the following steps:
(1) first, modified phosphate ferrum lithium is mixed with lithium acetate, the most under nitrogen protection, is heated to 700 DEG C-800 DEG C And stir 60min-90min, make semi-finished product;
(2) last, semi-finished product are entered with oxolane, polysulfideization slowly acid, trishydroxymethylaminomethane, nanometer sodium citrate Row mixing stirring, speed of agitator is 400r/min, and mixing time is 45min, carries out roasting in 1200 DEG C subsequently, and vacuum drying is i.e. ?.
As the further scheme of the present invention: step (1) is heated to 750 DEG C and stirs 75min.
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 phosphate ferrum lithium electricity positive electrode, according to the primary raw material of weight portion be: modified phosphate ferrum lithium 35 parts, vinegar Acid lithium 10 parts, oxolane 8 parts, polysulfideization slowly acid 2 parts, trishydroxymethylaminomethane 2 parts, nanometer sodium citrate 0.5 part;Described The preparation method of modified phosphate ferrum lithium is: by LiFePO4 and vinyltrimethoxy silane, calcium lactate, tin ash, poly-bran Aldehyde mixes, and calcines 1h, be vacuum dried and get final product at 702 DEG C;The purity of described LiFePO4 is more than 99.9%;Described trihydroxy methyl The mesh number of aminomethane is 1200 mesh;The mesh number of described calcium lactate is 1200 mesh.
The preparation method of a kind of modified phosphate ferrum lithium electricity positive electrode, concretely comprises the following steps:
(1) first, modified phosphate ferrum lithium is mixed with lithium acetate, the most under nitrogen protection, is heated to 700 DEG C and stirs 60min, makes semi-finished product;
(2) last, semi-finished product are entered with oxolane, polysulfideization slowly acid, trishydroxymethylaminomethane, nanometer sodium citrate Row mixing stirring, speed of agitator is 400r/min, and mixing time is 45min, carries out roasting in 1200 DEG C subsequently, and vacuum drying is i.e. ?.
Embodiment 2
A kind of modified phosphate ferrum lithium electricity positive electrode, according to the primary raw material of weight portion be: modified phosphate ferrum lithium 38 parts, vinegar Acid lithium 14 parts, oxolane 8 parts, polysulfideization slowly acid 2 parts, trishydroxymethylaminomethane 2 parts, nanometer sodium citrate 0.8 part;Described The preparation method of modified phosphate ferrum lithium is: by LiFePO4 and vinyltrimethoxy silane, calcium lactate, tin ash, poly-bran Aldehyde mixes, and calcines 1h, be vacuum dried and get final product at 702 DEG C;The purity of described LiFePO4 is more than 99.9%;Described trihydroxy methyl The mesh number of aminomethane is 1200 mesh;The mesh number of described calcium lactate is 1200 mesh.
The preparation method of a kind of modified phosphate ferrum lithium electricity positive electrode, concretely comprises the following steps:
(1) first, modified phosphate ferrum lithium is mixed with lithium acetate, the most under nitrogen protection, is heated to 700 DEG C and stirs 60min, makes semi-finished product;
(2) last, semi-finished product are entered with oxolane, polysulfideization slowly acid, trishydroxymethylaminomethane, nanometer sodium citrate Row mixing stirring, speed of agitator is 400r/min, and mixing time is 45min, carries out roasting in 1200 DEG C subsequently, and vacuum drying is i.e. ?.
Embodiment 3
A kind of modified phosphate ferrum lithium electricity positive electrode, according to the primary raw material of weight portion be: modified phosphate ferrum lithium 40 parts, vinegar Acid lithium 16 parts, oxolane 9 parts, polysulfideization slowly acid 4 parts, trishydroxymethylaminomethane 5 parts, nanometer sodium citrate 0.9 part;Described The preparation method of modified phosphate ferrum lithium is: by LiFePO4 and vinyltrimethoxy silane, calcium lactate, tin ash, poly-bran Aldehyde mixes, and calcines 1h, be vacuum dried and get final product at 702 DEG C;The purity of described LiFePO4 is more than 99.9%;Described trihydroxy methyl The mesh number of aminomethane is 1200 mesh;The mesh number of described calcium lactate is 1200 mesh.
The preparation method of a kind of modified phosphate ferrum lithium electricity positive electrode, concretely comprises the following steps:
(1) first, modified phosphate ferrum lithium is mixed with lithium acetate, the most under nitrogen protection, is heated to 750 DEG C and stirs 75min, makes semi-finished product;
(2) last, semi-finished product are entered with oxolane, polysulfideization slowly acid, trishydroxymethylaminomethane, nanometer sodium citrate Row mixing stirring, speed of agitator is 400r/min, and mixing time is 45min, carries out roasting in 1200 DEG C subsequently, and vacuum drying is i.e. ?.
Embodiment 4
A kind of modified phosphate ferrum lithium electricity positive electrode, according to the primary raw material of weight portion be: modified phosphate ferrum lithium 42 parts, vinegar Acid lithium 17 parts, oxolane 10 parts, polysulfideization slowly acid 6 parts, trishydroxymethylaminomethane 6 parts, nanometer sodium citrate 1.1 parts;Institute The preparation method stating modified phosphate ferrum lithium is: by LiFePO4 and vinyltrimethoxy silane, calcium lactate, tin ash, gather Furfural mixes, and calcines 1h, be vacuum dried and get final product at 702 DEG C;The purity of described LiFePO4 is more than 99.9%;Described three hydroxyl first The mesh number of base aminomethane is 1200 mesh;The mesh number of described calcium lactate is 1200 mesh.
The preparation method of a kind of modified phosphate ferrum lithium electricity positive electrode, concretely comprises the following steps:
(1) first, modified phosphate ferrum lithium is mixed with lithium acetate, the most under nitrogen protection, is heated to 800 DEG C and stirs 90min, makes semi-finished product;
(2) last, semi-finished product are entered with oxolane, polysulfideization slowly acid, trishydroxymethylaminomethane, nanometer sodium citrate Row mixing stirring, speed of agitator is 400r/min, and mixing time is 45min, carries out roasting in 1200 DEG C subsequently, and vacuum drying is i.e. ?.
Embodiment 5
A kind of modified phosphate ferrum lithium electricity positive electrode, according to the primary raw material of weight portion be: modified phosphate ferrum lithium 45 parts, vinegar Acid lithium 18 parts, oxolane 10 parts, polysulfideization slowly acid 6 parts, trishydroxymethylaminomethane 6 parts, nanometer sodium citrate 1.4 parts;Institute The preparation method stating modified phosphate ferrum lithium is: by LiFePO4 and vinyltrimethoxy silane, calcium lactate, tin ash, gather Furfural mixes, and calcines 1h, be vacuum dried and get final product at 702 DEG C;The purity of described LiFePO4 is more than 99.9%;Described three hydroxyl first The mesh number of base aminomethane is 1200 mesh;The mesh number of described calcium lactate is 1200 mesh.
The preparation method of a kind of modified phosphate ferrum lithium electricity positive electrode, concretely comprises the following steps:
(1) first, modified phosphate ferrum lithium is mixed with lithium acetate, the most under nitrogen protection, is heated to 800 DEG C and stirs 90min, makes semi-finished product;
(2) last, semi-finished product are entered with oxolane, polysulfideization slowly acid, trishydroxymethylaminomethane, nanometer sodium citrate Row mixing stirring, speed of agitator is 400r/min, and mixing time is 45min, carries out roasting in 1200 DEG C subsequently, and vacuum drying is i.e. ?.
Comparative example 1
A kind of LiFePO4 electricity positive electrode, according to the primary raw material of weight portion be: LiFePO4 40 parts, lithium acetate 16 Part, oxolane 9 parts, trishydroxymethylaminomethane 5 parts, nanometer sodium citrate 0.9 part;The purity of described LiFePO4 is More than 99.9%;The mesh number of described trishydroxymethylaminomethane is 1200 mesh.
The preparation method of a kind of LiFePO4 electricity positive electrode, concretely comprises the following steps:
(1) first, LiFePO4 is mixed with lithium acetate, the most under nitrogen protection, is heated to 750 DEG C and stirs 75min, makes semi-finished product;
(2) last, semi-finished product and oxolane, trishydroxymethylaminomethane, nanometer sodium citrate are carried out mixing stirring, Speed of agitator is 400r/min, and mixing time is 45min, carries out roasting in 1200 DEG C subsequently, is drying to obtain.
Comparative example 2
A kind of LiFePO4 electricity positive electrode, according to the primary raw material of weight portion be: LiFePO4 40 parts, lithium acetate 16 Part, oxolane 9 parts;The purity of described LiFePO4 is more than 99.9%.
The preparation method of a kind of LiFePO4 electricity positive electrode, concretely comprises the following steps:
(1) first, LiFePO4 is mixed with lithium acetate, the most under nitrogen protection, is heated to 750 DEG C and stirs 75min, makes semi-finished product;
(2) last, semi-finished product and oxolane are carried out mixing stirring, speed of agitator is 400r/min, and mixing time is 45min, carries out roasting in 1200 DEG C subsequently, is drying to obtain.
Comparative example 3
A kind of modified phosphate ferrum lithium electricity positive electrode, according to the primary raw material of weight portion be: modified phosphate ferrum lithium 40 parts, vinegar Acid lithium 16 parts, oxolane 9 parts, trishydroxymethylaminomethane 5 parts, nanometer sodium citrate 0.9 part;Described modified phosphate ferrum lithium Preparation method is: mixed with vinyltrimethoxy silane, calcium lactate, tin ash, poly-furfural by LiFePO4, at 702 DEG C Calcining 1h, is vacuum dried and get final product;The purity of described LiFePO4 is more than 99.9%;The mesh number of described trishydroxymethylaminomethane It is 1200 mesh;The mesh number of described calcium lactate is 1200 mesh.
The preparation method of a kind of modified phosphate ferrum lithium electricity positive electrode, concretely comprises the following steps:
(1) first, modified phosphate ferrum lithium is mixed with lithium acetate, the most under nitrogen protection, is heated to 750 DEG C and stirs 75min, makes semi-finished product;
(2) last, semi-finished product and oxolane, trishydroxymethylaminomethane, nanometer sodium citrate are carried out mixing stirring, Speed of agitator is 400r/min, and mixing time is 45min, carries out roasting in 1200 DEG C subsequently, is drying to obtain.
Test experience
Lithium electricity positive electrode embodiment 1-5 and comparative example 1-3 prepared is prepared as 1665132 model lithium ion power electricity Pond (the lamination soft-package battery of model H16*W65*L132mm), compacted density is at 3.0g/cm3Above, volume energy density exists 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 phosphate ferrum lithium electricity positive electrode, it is characterised in that according to the primary raw material of weight portion be: modified phosphate ferrum Lithium 35-45 part, lithium acetate 10-18 part, oxolane 8-10 part, polysulfideization slowly acid 2-6 part, trishydroxymethylaminomethane 2-6 part, Nanometer sodium citrate 0.5-1.4 part;The preparation method of described modified phosphate ferrum lithium is: by LiFePO4 and vinyl trimethoxy Silane, calcium lactate, tin ash, poly-furfural mix, and calcine 1h, be vacuum dried and get final product at 702 DEG C.
Modified phosphate ferrum lithium electricity positive electrode the most according to claim 1, it is characterised in that described modified phosphate ferrum lithium electricity Positive electrode, according to the primary raw material of weight portion be: modified phosphate ferrum lithium 38-42 part, lithium acetate 14-17 part, oxolane 8- 10 parts, polysulfideization slowly acid 2-6 part, trishydroxymethylaminomethane 2-6 part, nanometer sodium citrate 0.8-1.1 part;Described modified phosphate The preparation method of ferrum lithium is: mixed with vinyltrimethoxy silane, calcium lactate, tin ash, poly-furfural by LiFePO4, Calcine 1h at 702 DEG C, be vacuum dried and get final product.
Modified phosphate ferrum lithium electricity positive electrode the most according to claim 1 and 2, it is characterised in that described modified phosphate ferrum Lithium electricity positive electrode, according to the primary raw material of weight portion be: modified phosphate ferrum lithium 40 parts, lithium acetate 16 parts, oxolane 9 parts, Polysulfideization slowly acid 4 parts, trishydroxymethylaminomethane 5 parts, nanometer sodium citrate 0.9 part;The preparation side of described modified phosphate ferrum lithium Method is: mixed with vinyltrimethoxy silane, calcium lactate, tin ash, poly-furfural by LiFePO4, calcines 1h at 702 DEG C, It is vacuum dried and get final product.
Modified phosphate ferrum lithium electricity positive electrode the most according to claim 3, it is characterised in that the purity of described LiFePO4 It is more than 99.9%.
Modified phosphate ferrum lithium electricity positive electrode the most according to claim 4, it is characterised in that described trihydroxy methyl amino first The mesh number of alkane is 1200 mesh.
Modified phosphate ferrum lithium electricity positive electrode the most according to claim 5, it is characterised in that the mesh number of described calcium lactate is 1200 mesh.
7. the preparation method of the modified phosphate ferrum lithium electricity positive electrode as described in claim 1-6 is arbitrary, it is characterised in that Concretely comprise the following steps:
(1) first, modified phosphate ferrum lithium is mixed with lithium acetate, the most under nitrogen protection, is heated to 700 DEG C-800 DEG C and stirs Mix 60min-90min, make semi-finished product;
(2) last, semi-finished product are mixed with oxolane, polysulfideization slowly acid, trishydroxymethylaminomethane, nanometer sodium citrate Even stirring, speed of agitator is 400r/min, and mixing time is 45min, carries out roasting in 1200 DEG C subsequently, is vacuum dried and get final product.
The preparation method of modified phosphate ferrum lithium electricity positive electrode the most according to claim 7, it is characterised in that step (1) In be heated to 750 DEG C and stir 75min.
CN201610686078.2A 2016-08-18 2016-08-18 A kind of modified phosphate ferrum lithium electricity positive electrode and preparation method thereof Pending CN106099070A (en)

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US20060240327A1 (en) * 2005-04-25 2006-10-26 Ferro Corporation Non-aqueous electrolytic solution
CN101222044A (en) * 2007-12-06 2008-07-16 南开大学 Novel conductive agent doping/coating lithium iron phosphate material and its production method
CN101640262A (en) * 2008-07-31 2010-02-03 深圳市比克电池有限公司 Anode material of lithium ion battery
CN101924198A (en) * 2010-06-12 2010-12-22 河北金力新能源材料科技有限公司 Positive pole material of lithium ion battery and preparation method thereof
CN102769138A (en) * 2012-08-07 2012-11-07 天津优量锂能科技有限公司 Method for synthesizing manganese phosphate lithium sol-gel doped with other metal ions
CN105762334A (en) * 2014-12-16 2016-07-13 北京有色金属研究总院 Lithium iron phosphate nanocomposite cathode material suitable for aqueous binder system and preparation method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2363162A1 (en) * 2000-11-17 2002-05-17 Wilson Greatbatch Ltd. Double current collector negative electrode design for alkali metal ion electrochemical cells
US20060240327A1 (en) * 2005-04-25 2006-10-26 Ferro Corporation Non-aqueous electrolytic solution
CN101222044A (en) * 2007-12-06 2008-07-16 南开大学 Novel conductive agent doping/coating lithium iron phosphate material and its production method
CN101640262A (en) * 2008-07-31 2010-02-03 深圳市比克电池有限公司 Anode material of lithium ion battery
CN101924198A (en) * 2010-06-12 2010-12-22 河北金力新能源材料科技有限公司 Positive pole material of lithium ion battery and preparation method thereof
CN102769138A (en) * 2012-08-07 2012-11-07 天津优量锂能科技有限公司 Method for synthesizing manganese phosphate lithium sol-gel doped with other metal ions
CN105762334A (en) * 2014-12-16 2016-07-13 北京有色金属研究总院 Lithium iron phosphate nanocomposite cathode material suitable for aqueous binder system and preparation method thereof

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Application publication date: 20161109

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