CN1529382A - High-power plastic lithium-ion cell - Google Patents

High-power plastic lithium-ion cell Download PDF

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Publication number
CN1529382A
CN1529382A CNA2003101008214A CN200310100821A CN1529382A CN 1529382 A CN1529382 A CN 1529382A CN A2003101008214 A CNA2003101008214 A CN A2003101008214A CN 200310100821 A CN200310100821 A CN 200310100821A CN 1529382 A CN1529382 A CN 1529382A
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Prior art keywords
ion battery
lithium ion
high power
box body
positive
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CNA2003101008214A
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Chinese (zh)
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邓国友
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Individual
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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
    • H01M10/058—Construction or manufacture
    • H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/621—Binders
    • H01M4/622—Binders being polymers
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/624—Electric conductive fillers
    • H01M4/625—Carbon or graphite
    • 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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/661—Metal or alloys, e.g. alloy coatings
    • 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
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
    • H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
    • 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
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
    • 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
    • H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Secondary Cells (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

The lithium cell comprises positive pole sheet, negative pole sheet, electrolyte membrane material, electrolyte material, flexible compound packing materials and plastic body case. The positive pole sheet comprises positive pole material, agglomerant, DBP, carbon black and aluminum mesh. The negative pole sheet includes negative pole material, agglomerant, DBP, carbon black and copper mesh. Electrolyte membrane material includes agglomerant, silicon dioxide and DBP. Core unit is made from heating and laminating positive pole sheets, negative pole sheets and electrolyte membrane. Piling up core units, and packing piled units by composite membrane material forms assembled battery. Then, whole powerful plastic lithium cell is produced through steps: leading out pole ears, connecting positive pole and negative pole through ears material to connectors of pole, putting the combined cell in case, fusing case and cover. The product is suitable to use in field.

Description

The high power plastics lithium ion battery
One, technical field
The present invention relates to a kind of high-power high molecular polymer lithium ion battery, specifically a kind of power output is big, and discharging current is big, is suitable for open-air high power plastics lithium ion battery as power supply.
Two, background technology
At present, widely used poly-lithium battery is owing to the defective on the positive electrode that is adopted, structure, the cost, make polymer Li-ion battery that the characteristics of high-energy-density, low discharging current excellent performance be arranged, it is suitable for using on the equipment of little electric current, small-power discharge, as mobile phone or player, and be not suitable on the equipment of high power discharge, using.
CN1426126A discloses a kind of " polymer Li-ion battery and preparation method thereof ", comprise anode pole piece, negative electrode pole piece and electrolyte, at least a pole piece in described anode pole piece and the negative electrode pole piece is provided with the matrix material film, described matrix material film is pressed mass ratio 1: 10-2: 3 are made up of polymeric material A and B, described polymeric material A is poly-(methyl methacrylate vinegar-methacrylic acid lithium), described polymeric material B is Kynoar or poly-(biasfluoroethylene-hexafluoropropylene), the mole composition of each component is respectively among the described polymeric material A, 40%＜acrylonitrile＜90%, 10%＜methyl methacrylate vinegar＜40%, 0＜methacrylic acid lithium＜20%; The mass percent that described electrolyte accounts for polymer dielectric is 20%-80%.
This patent provides a kind of method for preparing polymer Li-ion battery, and it comprises the following steps:
(1) monomer methymethacrylate, acrylonitrile, methacrylic acid lithium are purified;
(2) getting above-mentioned each monomer is dissolved in and makes monomer mixture in the solvent;
(3) above-mentioned monomer mixture is packed in the container, and add initator;
(4) feeding nitrogen is removed the oxygen in the container, airtight container afterwards: reacted 8-12 hour down at 50-70 ℃, promptly make matrix material A i.e. poly-(methyl methacrylate vinegar-acrylonitrile-methacrylic acid lithium);
(5) be Kynoar with above-mentioned matrix material A promptly poly-(methyl methacrylate vinegar-acrylonitrile-methacrylic acid lithium) and polymeric material B or gather (biasfluoroethylene-hexafluoropropylene) and mix and fully dissolve, make slip with solvent;
(6) above-mentioned slip is applied at least a pole piece in anode and the negative electrode level sheet, at 30-50 ℃ of drying and forming-film;
(7) the above-mentioned pole piece that scribbles matrix material is assembled into battery, injects the electrolyte sealing, promptly make polymer Li-ion battery.
The technical scheme of this invention is fit to be applied on the equipment of little electric current, small-power discharge to be used, and uses and be not suitable on the equipment of high power discharge Industry Promotion.
Three, summary of the invention
Purpose of the present invention aims to provide a kind of as the mixture of plastic lithium-ion battery positive electrode and the high-power lithium ion battery of novel structure thereof, it is big that it has power output, the energy density height, to the environment non-secondary pollution, safe and reliable, the characteristics of long service life, and because manufacture craft is simple, with low cost, be fit to industrialized development.
To achieve these goals, high power plastics lithium ion battery of the present invention comprises positive electrode, negative material, barrier material, electrolyte material, soft compound package material and plastic casing, and positive electrode comprises mangaic acid cobalt lithium (LiCoMn 2O 4), cobalt acid lithium (LiCoO 2) or lithium nickelate (LiNiO 2), adhesive, plasticizer (DBP), carbon black, aluminium net, negative material comprises micro crystal graphite, adhesive, DBP, carbon black (SUPER-P), copper mesh, barrier material comprises adhesive, silicon dioxide (SIO 2), DBP.Positive electrode, negative material and barrier film are combined into unit electricity core by heating.Positive electrode is based on mangaic acid cobalt lithium (LiCoMn 2O 4) surface energy coating cobalt acid lithium (LiCoO 2) or lithium nickelate (LiNiO 2) technology, and be equipped with carbon black (SUPER-P), Kynoar (PVDF), plasticizer (DBP), be effectively to achieving the above object, its (being weight percentage) specifically composed as follows:
LiCoMn 2O 460-80% LiCoO 2Or LiNiO 23-18%
SUPER-P 2-10％ PVDF 7-11％ DBP 7-9％
The preferred weight percent scope is:
LiCoMn 2O 460-70% LiCoO 2Or LiNiO 26-12%
SUPER-P 2-8％ PVDF 8-11％ DBP 7-9％
The optimum weight percentage range is:
LiCoMn 2O 468% LiCoO 2Or LiNiO 28%
SUPER-P 5％ PVDF 11％ DBP 8％
(being significant percentage) specifically composed as follows of negative material:
Micro crystal graphite 70-83% SUPER-P 2-6%
PVDF 8％ DBP 7-13％
The preferred weight percent scope is:
Micro crystal graphite 75-80% SUPER-P 2-5%
PVDF 8％ DBP 7-10％
The optimum weight percentage range is:
Micro crystal graphite 80% SUPER-P 2%
PVDF 8％ DBP 10％
(being weight percentage) specifically composed as follows of barrier film:
PVDF 40-60％ PAN 5-9％
FUMEDSIO 2?5-8％ DBP 20-30％
The preferred weight percent scope is:
PVDF 50-60％ PAN 5-7％
FUMEDSIO 2?5-7％ DBP 25-30％
The optimum weight percentage range is:
PVDF 58％ PAN 6％
FUMEDSIO 2?6％ DBP 30％
Positive electrode, negative material and barrier material thereof all with acetone as solvent.
(mol ratio) specifically composed as follows of electrolyte material
LIPF 6∶EC∶DEC∶DMC＝1∶1∶1∶1
Plastic casing comprises lid and box body, covers and is provided with circular hole, is used for setting-in positive and negative electrode terminal, and box body is the cuboid or the square of hollow.
The preparation method is as follows:
1, each component of positive electrode is mixed in solvent in proportion, through stirring technique, certain thickness anode thin film is made in coating;
2, each component of negative material is also mixed in solvent in proportion,, be coated with into certain thickness negative film through stirring technique;
3, each component of barrier material is mixed in solvent equally in proportion,, on casting machine, make film by stirring technique;
4, respectively with Copper Foil and aluminum foil current collector through electroplating Ag and Zn metal (5-8 micron electrodeposited coating), to improve the big electric current of the collector oxidation resistance and the reduction internal resistance of cell down;
5, press the order of aluminium foil/cathode film/barrier film/negative electrode film/Copper Foil/negative electrode film/barrier film/cathode film/aluminium foil, heat is compound down at 110-130 ℃, anodal, negative pole and each composition of barrier film thereof are made into the unit electricity core of lamination, adopt composite plastic film to pack behind the electric core soldering polar ear that will make up again.The nickel bar that the just very 0.1mm of ear pole material is thick, negative pole are the copper bar of the thick electrosilvering of 0.1mm.
6. the electric in-core of soft packaging bag of packing into injects electrolyte in vacuum, seals at last to change into.
7. the electric core after changing into carries out the opening exhaust, finishes packing for the second time.
A plurality of unit electricity core that 8, will combine is inserted in the box body, by the positive and negative electrode lug positive and negative electrode that covers positive and negative electrode terminal and unit electricity core is coupled together;
9, will cover on box body, and adopt ultrasonic wave to merge, promptly form high-power lithium ion battery of the present invention.
The present invention compared with prior art has following excellent effect:
Because positive electrode adopts the surface coverage technology, with LiCoMn 2O 4With LiCoO 2Or LiNiO 2Mix, and be aided with SUPER-P, PVDF, DBP, make the capacity of positive electrode, discharge platform and cycle life are well improved, capacitance after superimposed expands to 200Ah with 3Ah to the plastics lithium battery of producing by unit electricity core, maximum discharge current reaches more than the 400A, this is that the inventor finds through repetition test, this has just broken for a long time, poly-lithium battery is suitable for little electric current, the boundary of using on the equipment of small-power discharge, make poly-lithium battery can be suitable for big electric current, use on the equipment of high power discharge, for field work provides a kind of novel power supply.
Superimposed unit electricity core is inserted in the box body; lid and box body are merged by ultrasonic wave; realized protection effectively to unit electricity core packing film cracky; improved the fail safe that poly-lithium battery uses; the combinatorial problem of (greater than 12V) when having solved the output of poly-lithium battery and high voltage; satisfied the requirement of transporting safely, made the capacitance of polymer Li-ion battery and power output go out tens of times than prior art is big.
The poly-lithium battery group that adopts the present invention to make, voltage can reach 3.6-240V, and the internal resistance of cell has only 3-50m Ω, electric current can reach 10-400A, and the environment for use temperature is at-30 ℃-+60 ℃, and the charging interval only needs 2-4 hour, battery life reached more than 5 years, for large power-consuming equipment provides a kind of removable power supply, modern design of the present invention, with low cost, environmentally safe, discharge platform height, discharging current is big, the energy density height, in light weight, safe and reliable.
Four, description of drawings
Fig. 1 is the front view of high-power lithium ion battery of the present invention.
Fig. 2 is the end view of high-power lithium ion battery of the present invention.
Wherein: 1, be box body; 2, be lid; 3, be unit electricity core; 4, be the composite packaging film; 5, be lug; 6, be the terminal nut; 7, be the positive and negative electrode terminal.
Five, execution mode
1, to take by weighing each component by weight percentage be LiCoMn to the positive electrode composition 2O 468%, LiCoO 2Or LiNiO 28%, SUPER-P 5%, PVDF 11% and DOP 8%, each component is placed in the container that fills acetone solvent sequentially, mixing speed with 1500RPM, stirred slurry 8-12 hour, control viscosity is made the anode thin film that thickness is the 115-125 micron at 10000-12000CPS by coating.
2, to take by weighing each component by weight percentage be micro crystal graphite or carbosphere 80%, SUPER-P 2%, PVDF 8% and DOP 10% to the negative material composition, after the mixing, insert according to a certain order in the container that fills acetone solvent, mixing speed with 1500RPM, stirred slurry 8 hours, control viscosity is made the negative film that thickness is the 120-130 micron at 10000-11000CPS by coating.
3, to take by weighing each component by weight percentage be PVDF 58%, PAN 6%, SIO to the barrier material composition 26% and DOP 30%, place acetone solvent to stir into the slurry that viscosity is 1200-1500CPS by a graded, on casting machine, make film, its THICKNESS CONTROL forms barrier film at the 30-36 micron.
4, to take by weighing each component in molar ratio be LIPF to the electrolyte composition 6: EC: DEC: DMC=1: 1: 1: 1, after the mixing, inject flexible package monomer electricity in-core and seal.
It is 5, a slice cathode film is superimposed with the aluminium foil of plating Zn5-8 micron,, hot pressing temperature is controlled at 110-125 ℃, the thickness compression ratio is 1/3, forms positive plate.
6, a slice being coated with the two sides of electrolytic copper foil collector of carbon black material, each is superimposed with a slice negative electrode film, and hot pressing temperature is controlled at 115-135 ℃, and the thickness compression ratio is 1/5, forms negative plate.
7, press the order of positive plate/barrier film/negative plate/barrier film/positive plate, adjusting hot pressing temperature is 110-120 ℃, and the thickness compression ratio is 1/8, forms unit electricity core.
8, said units electricity core is packed with the aluminum composite membrane material, the electrolyte that a small amount of organic solvent of interior injection and lithium salts are formed is as LiPF 6+ EC (ethylene carbonate)+DEC (carbonic acid diethyl ester).Seal then and change into.
9, a plurality of unit electricity core is combined, adopt lug to be connected with the positive and negative electrode of unit electricity core, positive pole ear is the nickel bar, negative lug is that copper is silver-plated, thickness is 0.1mm, anode and cathode terminals on positive and negative electrode lug and the plastic box cover merges under the electric current of 6K-10K ampere by ac spot welding machine, and contact resistance is reduced to below the 2m Ω.
10, the plastic casing of cell external packing adopts polyvinyl chloride or polysulfones, by extrusion molding or injection molded, cover and be provided with two circular holes, insert the electroplate screw rod in the circular hole, the screw two ends adopt the electroplate nut to fix respectively, form the positive and negative electrode terminal, box body is made as the cuboid of hollow, the assembly of a plurality of unit electricity core is inserted in the box body, will cover and box body between by ultrasonic fusing, formation high power plastics lithium ion single battery.

Claims (5)

1, a kind of high power plastics lithium ion battery, the positive electrode, negative material, barrier material, electrolyte material, soft compound package material and the plastic casing that comprise surface coating technology and doping techniques, positive electrode, barrier material, negative material form unit electricity core alternately, after adopting soft composite film material packing, unit electricity core is superimposed, the extraction pole ear material, by lug the positive and negative electrode of assembled battery is connected with positive and negative terminal on the lid, it is characterized in that positive electrode is at LiCoMn 2O 4Surface coverage LiCoO 2Or LiNiO 2, and being equipped with SUPER-P, PVDF and DBP, its percentage by weight is
LiCoMn 2O 460-80% LiCoO 2Or LiNiO 29-18%
SUPER-P 2-10％ PVDF 7-11％ DOP?7-9％
Plastic casing is made up of box body and lid, covers and is provided with two circular holes, and the positive and negative electrode terminal is set in the circular hole, is superimposed unit electricity core that assembled battery places in the box body, will cover with box body and merge by ultrasonic wave, forms the high power plastics lithium ion battery.
2, high power plastics lithium ion battery according to claim 1 is characterized in that the preferred weight percent scope of positive electrode is:
LiCoMn 2O 460-70%LiCoO 2Or LiNiO 26-12%
SUPER-P 2-8％ PVDF 8-11％ DOP 7-9％
3, high power plastics lithium ion battery according to claim 1 is characterized in that the optimum weight percentage of positive electrode is:
LiCoMn 2O 468% LiCoO 2Or LiNiO 28%
SUPER-P 5％ PVDF 11％?DOP 8％
4, high power plastics lithium ion battery according to claim 1, it is characterized in that plastic casing by box body with the lid form, cover and be provided with two circular holes, the positive and negative electrode terminal is set in the circular hole, is superimposed unit electricity core that assembled battery places in the box body, to cover with box body and merge, form the high power plastics lithium ion battery by ultrasonic wave.
5, high power plastics lithium ion battery according to claim 1 is characterized in that Copper Foil and aluminum foil current collector electrosilvering (Ag) and zinc (Zn) metal.
CNA2003101008214A 2003-10-04 2003-10-04 High-power plastic lithium-ion cell Pending CN1529382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2003101008214A CN1529382A (en) 2003-10-04 2003-10-04 High-power plastic lithium-ion cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2003101008214A CN1529382A (en) 2003-10-04 2003-10-04 High-power plastic lithium-ion cell

Publications (1)

Publication Number Publication Date
CN1529382A true CN1529382A (en) 2004-09-15

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100463256C (en) * 2005-03-17 2009-02-18 松下电器产业株式会社 Negative electrode for lithium ion secondary battery, producing method therefor, and lithium ion secondary battery using the negative electrode
CN102074731A (en) * 2010-12-10 2011-05-25 湖北能一郎新能源研究院 Manganese, nickel and titanium lithium ion battery and preparation method thereof
CN101517775B (en) * 2006-11-07 2011-09-14 环球世邦电池株式会社 Battery case cover
CN102435625A (en) * 2011-12-27 2012-05-02 东莞新能源科技有限公司 Method and sample shelf for X-ray diffraction in-situ test
CN108878891A (en) * 2018-05-16 2018-11-23 山东同大新能源有限公司 A kind of super-low-temperature lithium-ion power battery based on graphene and superconduction carbon fiber

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100463256C (en) * 2005-03-17 2009-02-18 松下电器产业株式会社 Negative electrode for lithium ion secondary battery, producing method therefor, and lithium ion secondary battery using the negative electrode
CN101517775B (en) * 2006-11-07 2011-09-14 环球世邦电池株式会社 Battery case cover
CN102074731A (en) * 2010-12-10 2011-05-25 湖北能一郎新能源研究院 Manganese, nickel and titanium lithium ion battery and preparation method thereof
CN102074731B (en) * 2010-12-10 2014-03-05 湖北能一郎新能源研究院 Manganese, nickel and titanium lithium ion battery and preparation method thereof
CN102435625A (en) * 2011-12-27 2012-05-02 东莞新能源科技有限公司 Method and sample shelf for X-ray diffraction in-situ test
CN108878891A (en) * 2018-05-16 2018-11-23 山东同大新能源有限公司 A kind of super-low-temperature lithium-ion power battery based on graphene and superconduction carbon fiber

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