CN101510625B - Ultra-high magnification lithium ion battery - Google Patents

Ultra-high magnification lithium ion battery Download PDF

Info

Publication number
CN101510625B
CN101510625B CN2009100217031A CN200910021703A CN101510625B CN 101510625 B CN101510625 B CN 101510625B CN 2009100217031 A CN2009100217031 A CN 2009100217031A CN 200910021703 A CN200910021703 A CN 200910021703A CN 101510625 B CN101510625 B CN 101510625B
Authority
CN
China
Prior art keywords
ion battery
lithium ion
ultra
positive
negative
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009100217031A
Other languages
Chinese (zh)
Other versions
CN101510625A (en
Inventor
杨洪
李峰
何显峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XI'AN SEFU ENERGY TECHNOLOGY Co Ltd
Original Assignee
XI'AN SEFU ENERGY TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by XI'AN SEFU ENERGY TECHNOLOGY Co Ltd filed Critical XI'AN SEFU ENERGY TECHNOLOGY Co Ltd
Priority to CN2009100217031A priority Critical patent/CN101510625B/en
Publication of CN101510625A publication Critical patent/CN101510625A/en
Application granted granted Critical
Publication of CN101510625B publication Critical patent/CN101510625B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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

Abstract

The invention discloses a lithium ion battery with superhigh multiplying power, which comprises a positive plate, a negative plate, a membrane, an electrolyte solution, a plate lug and a packing shell. The positive plate is manufactured by coating the mixed slurry of a positive active material, a conducting agent and a cementing agent on both sides of an aluminium foil; the negative plate is manufactured by coating the mixed slurry of a negative active material, the conducting agent and the cementing agent on both sides of a copper foil; and the electrolyte solution is a mixed solution of lithium and an organic solvent. The lithium ion battery is capable of discharging continually at a superhigh multiplying power and the discharge multiplying power can reach 35C-50C. The discharge capacity of the discharge multiplying power at 35C, 40C, 45C, 50C can respectively reach 96.3 percent, 95.6 percent, 95.1 percent and 94.5 percent of the discharge capacity at 1C.

Description

A kind of ultra-high magnification lithium ion battery
Technical field
The invention belongs to technical field of lithium ion, particularly relate to a kind of lithium ion battery that can continuous discharge under the ultra-high magnifications condition.
Background technology
Lithium ion battery is since the nineteen ninety commercialization, rely on advantages such as it is in light weight, specific energy is high, operating voltage is high, the life-span is long, self discharge is low, be applied to various modernized mobile communication equipments and field of portable electronic apparatus rapidly, the lithium ion battery industry has obtained develop rapidly.Above-mentioned electronic equipment has the advantages that operating current is little, service time is long, and general lithium ion battery can meet the demands.
Along with the continual renovation and the development of technology, market is also improving constantly the requirement of mobile electronic device.In earlier stage adopt other battery or oil as power as fields such as car mould, model plane, ship models, numerous advantages because of lithium ion battery, this field also turns to lithium ion battery now gradually as power source, these product needed continue heavy-current discharge and satisfy its power needs, and present common lithium ion battery can only satisfy the discharge requirement about 1C, can't be applied to this field.Produced a kind of high multiplying power lithium ion battery under the promotion of this application demand, high multiplying power lithium ion battery is except the advantage with lithium ion battery commonly used, and the most outstanding characteristics are to carry out continuous discharge under the high magnification situation.At present common product can be in 10C~20C continuous discharge, but along with the continuous development of car mould, model plane, ship model technology, 10C~20C and even 25C can't satisfy the specific (special) requirements of product.Therefore more the high multiplying power lithium ion battery demand increases day by day and satisfies instructions for use.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, a kind of lithium ion battery that can carry out continuous discharge under ultra-high magnifications 35C~50C condition is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of ultra-high magnification lithium ion battery, comprise positive plate, negative plate, barrier film, electrolyte and lug and pack case, it is characterized in that, described positive plate is with positive active material, the mixed slurry of conductive agent and binding agent is coated on the aluminium foil two sides and makes, described negative plate is with negative electrode active material, the mixed slurry of conductive agent and binding agent is coated on the Copper Foil two sides and makes, described electrolyte is the mixed solution of lithium salts and organic solvent, the concentration of lithium salts is 1~1.3mol/L, positive active material in the described positive plate mixed slurry, the percentage by weight of conductive agent and binding agent is respectively: 90~96%, 1.0~5.0%, 2.0~6.0%; Wherein, positive active material is a kind of in cobalt acid lithium and the ternary material or their combination, conductive agent is one or more a mixture of carbon black, graphite, carbon fiber and carbon nano-tube, and binding agent is the homopolymers of Kynoar or the copolymer of Kynoar-hexafluoropropylene; The percentage by weight of negative electrode active material, conductive agent and binding agent is respectively in the described negative plate mixed slurry: 90~96%, 1.0~5.0%, 1.5~6.0%, wherein, negative electrode active material is a kind of in carbonaceous mesophase spherules and the modified artificial graphite or their combination, conductive agent is one or more a mixture of carbon black, graphite, carbon fiber and carbon nano-tube, and binding agent is composition or the homopolymers of oiliness binding agent Kynoar or the copolymer of Kynoar-hexafluoropropylene of aqueous binders butadiene-styrene rubber and carboxymethyl cellulose; Lithium salts is a lithium hexafluoro phosphate, and organic solvent is the mixture of ethylene carbonate, dimethyl carbonate, methyl ethyl carbonate and diethyl carbonate, ethylene carbonate: dimethyl carbonate: methyl ethyl carbonate: the percentage by weight of diethyl carbonate is 3: 4: 2: 1; Described ternary material is LiNi xMn yCo 1-x-yO 2, x=0~1/3 wherein, y=0~1/3.
The two-sided dressing surface density of described positive plate is 120~200g/m 2, compacted density is 3.0~3.8g/m 3, the surface density of described aluminium foil is 30g/m 2More than.
The two-sided dressing surface density of described negative plate is 70~120g/m 2, compacted density is 1.2~1.8g/m 3, the surface density of described Copper Foil is 80g/m 2More than.
The porosity of described barrier film is more than 45%, and membrane thicknesses is below the 40um.
The conductivity of described electrolyte is more than 11ms/cm.
Described lug comprises positive pole ear and negative lug, and positive pole ear is an aluminium pole ears, and negative lug is nickel lug, copper nickel plating lug or copper polar ear.
The specific area of described carbon black, graphite, carbon fiber and carbon nano-tube is 200m 2More than/the g.
The particle diameter of described carbonaceous mesophase spherules and modified artificial graphite is below the 15um, and specific area is 1.5m 2More than/the g.
Must be under 70~90 ℃ of conditions of temperature more than the dry 12h before the fluid injection in the manufacture craft of lithium battery.
The present invention compared with prior art has the following advantages: lithium battery of the present invention can continuous discharge under the ultra-high magnifications condition, discharge-rate can reach 35C~50C, and discharge-rate reaches 96.3%, 95.6%, 95.1%, 94.5% of 1C discharge capacity respectively in the discharge capacity of 35C, 40C, 45C, 50C.
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Description of drawings
Fig. 1 is the external form schematic diagram (wherein, Fig. 1 (a) is bipolar ear homonymy, and Fig. 1 (b) is bipolar ear heteropleural, and Fig. 1 (c) and Fig. 1 (d) are four lug heteropleurals) of high multiplying power lithium ion battery of the present invention.
Fig. 2 for the positive and negative electrode plate shape schematic diagram of high multiplying power lithium ion battery of the present invention (wherein, Fig. 2 (a) is that monopole ear is inclined to one side, Fig. 2 (b) be monopole ear just, Fig. 2 (c) is bipolar ear homonymy, Fig. 2 (d) is bipolar ear heteropleural).
Fig. 3 is the 35C discharge curve of high multiplying power lithium ion battery of the present invention.
Fig. 4 is the 40C discharge curve of high multiplying power lithium ion battery of the present invention.
Fig. 5 is the 45C discharge curve of high multiplying power lithium ion battery of the present invention.
Fig. 6 is the 50C discharge curve of high multiplying power lithium ion battery of the present invention.
Embodiment
Embodiment 1
Manufacturing process with 2500~5000mAh ultra-high magnification lithium ion battery is that example describes, and battery structure is shown in Fig. 1 (a).Implement by following method:
The preparation of anode sizing agent: with N-dimethyl pyrrolidone (NMP) is solvent, and active material is modified porous spherical cobalt acid lithium (LiCoO 2), conductive agent is super conductive carbon black (Super P) and gas-phase growth of carbon fibre (VGCF), the NMP adding proportion is between 40~65%.The used ratio of present embodiment is: LiCoO 2: Super P: VGCF: PVDF: NMP=90: 3: 2: 5: 60.At first with LiCoO 2, three kinds of materials of Super P, VGCF carry out the pre-dispersed processing of ball milling in ball mill, make conductive agent be dispersed in LiCoO 2Particle surface; Then PVDF is joined among the NMP, stir 2~4h, the cathode mix of handling well is divided join for three times in the PVDF peptizing agent, the vacuumize degassing bubble is to be coated behind high-speed stirred 6~8h.
The making of anode pole piece: the anode sizing agent for preparing is coated on the collector aluminium foil, and the dressing surface density is at 120~200g/m 2Between, coating pole piece drying, roll-in, wait to assemble after die-cut, finish the making (shown in Fig. 2 (a)) of positive plate.
The preparation of cathode size: the preparation of cathode size is consistent with anodal preparation steps, with water is solvent, active material is carbonaceous mesophase spherules (MCMB), conductive agent is super conductive carbon black (Super P), bonding agent is the mixture of benzene rubber (SBR) and carboxymethyl cellulose (CMC), the water adding proportion is between 90~120, and the used ratio of present embodiment is: MCMB: Super P: SBR: CMC: H 2O=92: 3: 3: 2: 110.At first MCMB and Super P are carried out the pre-dispersed processing of ball milling in ball mill, make conductive agent be dispersed in the MCMB surface; Then CMC is added in the deionized water, stir 3~4h, the negative pole compounding substances of handling well is divided in the aqueous solution that secondary adds above-mentioned CMC, the back that stirs adds SBR, and the back vacuumize degassing bubble that stirs at last is to be coated.
The making of cathode pole piece: the cathode size for preparing is coated on the copper foil of affluxion body, and the dressing surface density is at 70~120g/m 2Between, coating pole piece drying, roll-in, wait to assemble after die-cut, finish the making (shown in Fig. 2 (a)) of negative plate.
Treat the making of fluid injection electricity core: die-cut good positive and negative plate and barrier film are stacked gradually by the order of barrier film, negative pole, barrier film, positive pole, barrier film, negative pole be combined into electric core (shown in Fig. 1 (a)), the electric core that is combined into utilizes aluminium pole ears, nickel lug to carry out ultrasonic bonding, the electric core that has welded is gone into shell encapsulate and treat fluid injection.
The preparation of electrolyte: lithium salts is lithium hexafluoro phosphate (LiPF 6), solvent is weight ratio EC: DMC: EMC: DEC=3: 4: 2: 1 quaternary mixed liquor.
Changing into of battery: the battery after fluid injection left standstill changes into, and changes into to adopt 0.05C current charges 2h, leaves standstill 10min, and 0.2C current charges 200min finishes changing into of battery, finishes the partial volume of battery at last.
Embodiment 2
Consistent in present embodiment both positive and negative polarity prescription, electrolyte, barrier film, lug and the enforcement case 1, but anode and cathode slurry manufacture method and enforcement case 1 are inconsistent.The prescription in the enforcement case 1 is adopted in the preparation of anode sizing agent, and PVDF is joined among the NMP, stirs 2~4h; Then VGCF is added in the PVDF glue, stir 3~4h; Again Super P is added in the above-mentioned mixed liquor and stir 2~3h; At last with LiCoO 2Add the back vacuumize degassing bubble that stirs, back operation is made with enforcement case 1 and is finished the positive plate making.
The preparation of cathode size joins CMC in the deionized water, stirs 3~4h; Then Super P is added in the CMC glue, stir 3~4h; Again MCMB is added in the above-mentioned mixed liquor and stir 4~6h; At last SBR is added the back vacuumize degassing bubble that stirs, back operation is made with enforcement case 1 and is finished the negative plate making.
Embodiment 3
Consistent in the manufacture method of the positive and negative electrode prescription of present embodiment, electrolyte, barrier film, lug and the enforcement case 1, but the current collection mode of positive/negative plate and enforcement case 1 are inconsistent.Enforcement case 2 pole pieces adopt one-sided monopole ear intermediate collector (shown in Fig. 2 (b)), the bipolar ear afflux of homonymy (shown in Fig. 2 (c)), the bipolar ear afflux of heteropleural (shown in Fig. 2 (d)) respectively.The positive/negative plate of above-mentioned shape is carried out stacked combination making battery (concrete shown in Fig. 1 (b), 1 (c), 1 (d)) by the order of barrier film, negative pole, barrier film, positive pole, barrier film, negative pole, and back operation is made the making of finishing battery with enforcement case 1.
Embodiment 4
The positive and negative electrode prescription of present embodiment, electrolyte, barrier film, manufacture method and enforcement case 1 in consistent, but lug and the enforcement case 1 used are inconsistent.Positive pole still adopts aluminium pole ears, and negative pole adopts copper nickel plating lug, copper polar ear and negative current collector to weld respectively, and the electric core that welding is good is gone into shell, fluid injection, changed into, partial volume is finished battery and made.
Embodiment 5
The preparation of anode sizing agent: with N-dimethyl pyrrolidone (NMP) is solvent, and active material is modified porous spherical cobalt acid lithium (LiCoO 2) and ternary material (LiNi xMn yCo 1-x-yO 2) mixture of (wherein x=0~1/3, y=0~1/3), conductive agent is super conductive carbon black (Super P) and gas-phase growth of carbon fibre (VGCF), the NMP adding proportion is between 40~70%.The used ratio of present embodiment is: LiCoO 2: LiNi xMn yCo 1-x-yO 2: Super P: VGCF: PVDF: NMP=60: 31: 2: 2: 5: 65.At first with LiCoO 2, LiNi xMn yCo 1-x-yO 2, four kinds of materials of SuperP, VGCF carry out the pre-dispersed processing of ball milling in ball mill, make conductive agent be dispersed in LiCoO 2And LiNi xMn yCo 1-x-yO 2The spherical particle surface; Then PVDF is joined among the NMP, stir 2~4h, the cathode mix of handling well is divided join for three times in the PVDF peptizing agent, the vacuumize degassing bubble is to be coated behind high-speed stirred 6~8h.
The preparation of cathode size: the preparation of cathode size is consistent with anodal preparation steps, with water is solvent, active material is the mixture of MCMB and modified artificial graphite, conductive agent is super conductive carbon black (Super P) and VGCF mixture, bonding agent is the mixture of SBR and CMC, the deionized water adding proportion is between 90~130, and the used ratio of present embodiment is: MCMB: Delanium: Super P: VGCF: SBR: CMC: H 2O=50: 41: 2: 1: 3: 3: 120.At first MCMB, Delanium, VGCF and Super P are carried out the pre-dispersed processing of ball milling in ball mill, make conductive agent be dispersed in MCMB and Delanium surface; Then CMC is added in the deionized water, stir 3~4h, the negative pole compounding substances of handling well is divided in the aqueous solution that secondary adds above-mentioned CMC, the back that stirs adds SBR, and the back vacuumize degassing bubble that stirs at last is to be coated.
The anode and cathode slurry for preparing is coated on the collector, coating pole piece drying, roll-in, assemble, go into shell, fluid injection after die-cut, change into, making that partial volume is finished battery.

Claims (8)

1. ultra-high magnification lithium ion battery, comprise positive plate, negative plate, barrier film, electrolyte and lug and pack case, it is characterized in that, described positive plate is with positive active material, the mixed slurry of conductive agent and binding agent is coated on the aluminium foil two sides and makes, described negative plate is with negative electrode active material, the mixed slurry of conductive agent and binding agent is coated on the Copper Foil two sides and makes, described electrolyte is the mixed solution of lithium salts and organic solvent, the concentration of lithium salts is 1~1.3mol/L, positive active material in the described positive plate mixed slurry, the percentage by weight of conductive agent and binding agent is respectively: 90~96%, 1.0~5.0%, 2.0~6.0%; Wherein, positive active material is a kind of in cobalt acid lithium and the ternary material or their combination, conductive agent is one or more a mixture of carbon black, graphite, carbon fiber and carbon nano-tube, and binding agent is the homopolymers of Kynoar or the copolymer of Kynoar-hexafluoropropylene; The percentage by weight of negative electrode active material, conductive agent and binding agent is respectively in the described negative plate mixed slurry: 90~96%, 1.0~5.0%, 1.5~6.0%, wherein, negative electrode active material is a kind of in carbonaceous mesophase spherules and the modified artificial graphite or their combination, conductive agent is one or more a mixture of carbon black, graphite, carbon fiber and carbon nano-tube, and binding agent is composition or the homopolymers of oiliness binding agent Kynoar or the copolymer of Kynoar-hexafluoropropylene of aqueous binders butadiene-styrene rubber and carboxymethyl cellulose; Lithium salts is a lithium hexafluoro phosphate, and organic solvent is the mixture of ethylene carbonate, dimethyl carbonate, methyl ethyl carbonate and diethyl carbonate, ethylene carbonate: dimethyl carbonate: methyl ethyl carbonate: the percentage by weight of diethyl carbonate is 3: 4: 2: 1; Described ternary material is LiNi xMn yCo 1-x-yO 2, x=0~1/3 wherein, y=0~1/3.
2. a kind of ultra-high magnification lithium ion battery according to claim 1 is characterized in that, the two-sided dressing surface density of described positive plate is 120~200g/m 2, compacted density is 3.0~3.8g/m 3, the surface density of described aluminium foil is 30g/m 2More than.
3. a kind of ultra-high magnification lithium ion battery according to claim 1 is characterized in that, the two-sided dressing surface density of described negative plate is 70~120g/m 2, compacted density is 1.2~1.8g/m 3, the surface density of described Copper Foil is 80g/m 2More than.
4. a kind of ultra-high magnification lithium ion battery according to claim 1 is characterized in that, the porosity of described barrier film is more than 45%, and membrane thicknesses is below the 40um.
5. a kind of ultra-high magnification lithium ion battery according to claim 1 is characterized in that the conductivity of described electrolyte is more than 11ms/cm.
6. a kind of ultra-high magnification lithium ion battery according to claim 1 is characterized in that described lug comprises positive pole ear and negative lug, and positive pole ear is an aluminium pole ears, and negative lug is nickel lug, copper nickel plating lug or copper polar ear.
7. a kind of ultra-high magnification lithium ion battery according to claim 1 is characterized in that, the specific area of described carbon black, graphite, carbon fiber and carbon nano-tube is 200m 2More than/the g.
8. a kind of ultra-high magnification lithium ion battery according to claim 1 is characterized in that, the particle diameter of described carbonaceous mesophase spherules and modified artificial graphite is below the 15um, and specific area is 1.5m 2More than/the g.
CN2009100217031A 2009-03-26 2009-03-26 Ultra-high magnification lithium ion battery Expired - Fee Related CN101510625B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009100217031A CN101510625B (en) 2009-03-26 2009-03-26 Ultra-high magnification lithium ion battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009100217031A CN101510625B (en) 2009-03-26 2009-03-26 Ultra-high magnification lithium ion battery

Publications (2)

Publication Number Publication Date
CN101510625A CN101510625A (en) 2009-08-19
CN101510625B true CN101510625B (en) 2011-01-12

Family

ID=41002927

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009100217031A Expired - Fee Related CN101510625B (en) 2009-03-26 2009-03-26 Ultra-high magnification lithium ion battery

Country Status (1)

Country Link
CN (1) CN101510625B (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101752605B (en) * 2010-01-12 2012-10-31 东莞市金源电池科技有限公司 Carbon nanotube lithium battery
CN101872863A (en) * 2010-07-13 2010-10-27 深圳邦凯新能源股份有限公司 Disposable cylindrical polymer lithium-ion battery and manufacturing method thereof
CN102295898B (en) * 2011-06-08 2012-05-30 丁建民 Configuration and coating method of aluminium foil precoat nano conductive carbon primary coat liquid
CN102403537A (en) * 2011-11-30 2012-04-04 南京双登科技发展研究院有限公司 Method for manufacturing lithium iron phosphate battery
CN102403485B (en) * 2011-12-05 2016-05-11 湖北中能锂电科技有限公司 Lithium battery pole slice and the production method thereof of two property active material electrodes
CN104112846A (en) * 2013-04-19 2014-10-22 南通力合新能源有限公司 High-capacity lithium-ion battery used for electric tool and preparation method thereof
CN103579563B (en) * 2013-11-16 2016-04-06 江苏海四达电源股份有限公司 A kind of cylinder fills 2000mAh lithium-ion-power cell and manufacture method soon
CN104600241A (en) * 2014-12-17 2015-05-06 深圳市比克电池有限公司 Lithium ion battery positive plate, preparation method of lithium ion battery positive plate, and lithium ion battery
CN104577193B (en) * 2015-01-09 2016-08-31 潘珊 A kind of method of energy density improving lithium-ion-power cell and lithium-ion-power cell
CN104752671A (en) * 2015-03-09 2015-07-01 芜湖迈特电子科技有限公司 Quick charging back clip mobile battery
CN104900908A (en) * 2015-06-13 2015-09-09 田东 Lithium ion battery with high-rate charge-discharge performance
CN104900844A (en) * 2015-06-18 2015-09-09 田东 Cathode slurry for lithium-ion batteries and preparation method of cathode slurry
CN105070941A (en) * 2015-07-29 2015-11-18 东莞市金辉电源科技有限公司 Lithium ion battery slurry with long service life and preparation method of lithium ion battery slurry
CN105355889B (en) * 2015-11-28 2018-02-23 西安瑟福能源科技有限公司 A kind of high voltage high multiplying power lithium ion battery
CN105428654A (en) * 2015-12-09 2016-03-23 山东精工电子科技有限公司 Negative plate of lithium battery with excellent low-temperature performance
CN106450169A (en) * 2016-08-31 2017-02-22 湖北宇电能源科技股份有限公司 Manufacturing method of negative plate of safety lithium-ion battery
CN106299280B (en) * 2016-08-31 2020-05-19 中航锂电(洛阳)有限公司 Preparation method of high-capacity lithium ion battery anode slurry
CN106450159A (en) * 2016-12-07 2017-02-22 上海空间电源研究所 Electrodes of lithium ion storage battery for satellite
CN106684349A (en) * 2016-12-20 2017-05-17 惠州市纬世新能源有限公司 Cylindrical high-rate lithium cobaltate flexibly-packaged battery
CN107195960A (en) * 2017-06-16 2017-09-22 江苏三杰新能源有限公司 A kind of cylinder fast charging type high multiplying power lithium ion battery
CN107742727A (en) * 2017-10-13 2018-02-27 江苏海四达电源股份有限公司 Lithium cell cathode material, cathode of lithium battery and preparation method thereof and lithium battery
CN107732313A (en) * 2017-10-27 2018-02-23 桑顿新能源科技有限公司 A kind of long circulating high security manganese systems low cost battery core preparation method
CN108493405B (en) * 2018-02-24 2021-02-05 张洪 Novel ultralow temperature lithium ion battery and preparation method thereof
CN108598367B (en) * 2018-04-26 2020-12-08 广东永邦新能源股份有限公司 High-voltage negative plate, preparation method thereof and high-voltage lithium battery
CN108649263A (en) * 2018-05-18 2018-10-12 中国电力科学研究院有限公司 A kind of lithium ion battery
CN109309233A (en) * 2018-09-30 2019-02-05 东莞市三臻科技发展有限公司 A kind of preparation process of extended-life lithium ion battery
CN109494348B (en) * 2018-10-17 2020-12-11 宁德时代新能源科技股份有限公司 Negative pole piece and secondary battery
CN109687013B (en) * 2018-12-27 2020-07-07 江西省汇亿新能源有限公司 Lithium iron phosphate battery and preparation method thereof
CN109713298A (en) * 2018-12-29 2019-05-03 蜂巢能源科技有限公司 Lithium ion battery and preparation method
CN111180737B (en) * 2019-05-31 2021-08-03 宁德时代新能源科技股份有限公司 Lithium ion secondary battery, battery cell and negative pole piece

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004066469A3 (en) * 2003-01-22 2004-09-23 Valence Technology Inc Electrolyte for use in phosphate based lithium ion/polymer cells
CN101232096A (en) * 2008-02-03 2008-07-30 深圳市比克电池有限公司 Lithium ion battery electric core architecture
CN101394006A (en) * 2008-11-07 2009-03-25 唐志建 Valve-free fully sealed lithium ionic cell

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004066469A3 (en) * 2003-01-22 2004-09-23 Valence Technology Inc Electrolyte for use in phosphate based lithium ion/polymer cells
CN101232096A (en) * 2008-02-03 2008-07-30 深圳市比克电池有限公司 Lithium ion battery electric core architecture
CN101394006A (en) * 2008-11-07 2009-03-25 唐志建 Valve-free fully sealed lithium ionic cell

Also Published As

Publication number Publication date
CN101510625A (en) 2009-08-19

Similar Documents

Publication Publication Date Title
CN101510625B (en) Ultra-high magnification lithium ion battery
CN101436654B (en) Ferric phosphate lithium type safety high power lithium ion battery
CN103326027B (en) A kind of negative electrode of lithium ion battery and lithium ion battery
CN107248592A (en) A kind of novel high-power lithium ion battery with high energy density
CN105449186A (en) Novel secondary battery and preparation method therefor
CN104577012A (en) Rate cycling improved lithium iron phosphate battery and preparation method thereof
CN203746972U (en) Positive electrode plate
CN102694200B (en) Silicon-based negative lithium-ion battery and manufacturing method thereof
CN102403531A (en) High rate lithium iron phosphate cell and preparation method thereof
CN102340027B (en) Lithium ion battery with high energy density
CN104362346A (en) Lithium ion battery
CN105655559A (en) Lithium ion battery and preparation method thereof
CN103515609B (en) THAQ/ graphene composite material, its preparation method, anode and lithium ion battery
CN108281610B (en) Lithium ion battery with composite positive pole piece
CN109037592A (en) Based lithium-ion battery positive plate and preparation method thereof, lithium ion battery
CN105514378A (en) Lithium-sulfur battery positive-pole composite material with imitated cellular structure and preparation method thereof
CN105047863A (en) Cathode material for lithium battery and preparation method thereof
CN105633403A (en) High-rate lithium iron phosphate positive electrode material and preparation method thereof
WO2021088354A1 (en) Core-shell nickel ferrite and preparation method therefor, nickel ferrite@c material, preparation method therefor, and use thereof
CN107195979A (en) A kind of power energy storage polymer Li-ion battery
CN111600066A (en) Quick-charging type high-energy-density lithium ion battery
CN110197899A (en) A kind of preparation method of lithium foil
CN103000385A (en) Super hybrid capacitance battery and preparation method thereof
CN105591151A (en) Multiplying power type ternary battery and preparation method thereof
CN106374083B (en) Silicon substrate negative electrode and preparation method thereof and lithium ion battery

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110112

Termination date: 20120326