CN103187593B - A kind of preparation method of flexible-package high-power lithium ion power battery - Google Patents
A kind of preparation method of flexible-package high-power lithium ion power battery Download PDFInfo
- Publication number
- CN103187593B CN103187593B CN201110452922.2A CN201110452922A CN103187593B CN 103187593 B CN103187593 B CN 103187593B CN 201110452922 A CN201110452922 A CN 201110452922A CN 103187593 B CN103187593 B CN 103187593B
- Authority
- CN
- China
- Prior art keywords
- battery
- lug
- pole piece
- weight portion
- 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.)
- Active
Links
Classifications
-
- 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
Abstract
The preparation method of a kind of flexible-package high-power lithium ion power battery of disclosure, this battery includes anode pole piece, barrier film, cathode pole piece, electrolyte, lug, aluminum plastic film.Described lug is two-way lug；Described plus plate current-collecting body is utter misery aluminium foil.The invention has the beneficial effects as follows: by using two-way lug so that battery, when high-multiplying power discharge, shortens electric current by distance, reduces polarization, thus reducing caloric value, extends battery circulation performance；It is plus plate current-collecting body by using utter misery aluminium foil, effectively reduces contacting internal resistance between positive active material and collective so that battery reduces the degrees of expansion of active substance when high rate cyclic, is effectively improved high-multiplying power discharge voltage and the circulation performance of battery.
Description
Technical field
The invention belongs to lithium-ion-power cell field, especially flexible-package high-power lithium ion power battery.
Background technology
Lithium-ion-power cell has voltage height, and energy density is big, good cycle, the advantages such as self discharge is little, memory-less effect, operating temperature range width.The structure of general high power lithium ion power battery is: with laminar, and by positive plate, barrier film, negative plate is alternate and the battery core that formed, puts in battery case such as aluminum plastic film；Or making battery core with coiling form, then weld unidirectional lug, aluminum plastic film seals, and injects electrolyte.
During in order to prevent high-multiplying power discharge, battery pole ear place and battery core caloric value are big, shorten cycle performance of battery, and traditional method is to widen, thickeies lug, and adjusts formula, increase conductive black content.This alleviates the problem that caloric value is bigger to a certain extent, but unidirectional lug electric current passes through path length, it is impossible to tackle the problem at its root；Increase conductive black content, while reducing caloric value, the energy density of battery can be reduced.
In order to increase the battery high rate cyclic life-span, traditional method is employing rolling aluminum foil is plus plate current-collecting body, by adjusting anode formula, increases binder content and achieves the goal.But binder content increases, and can increase the internal resistance of cell, battery-heating amount increases；The energy density of battery can be reduced simultaneously.
China Patent Publication No. CN1529382A, publication date JIUYUE in 2004 15 days, name is called the patent of invention of high-power plastic lithium-ion cell, this application case discloses a kind of high-power plastic lithium-ion cell, including positive plate, negative plate, dielectric film material, electrolyte material, soft compound package material and cabinet, positive plate includes positive electrode, adhesive, DBP, carbon black, aluminum net, negative plate includes negative material, adhesive, DBP, carbon black, copper mesh, and membrane materials for electrolyte includes adhesive, silicon dioxide, DBP.Positive plate, negative plate and dielectric film make unit battery core by heating compound, unit battery core is overlapped, after adopting composite film material packaging, form assembled battery, draw lug, make the positive and negative electrode of assembled battery be connected with positive and negative electrode terminal by ear pole material, assembled battery is placed in plastics and internal, make lid and box body be merged by ultrasound wave, form complete high-power plastic lithium-ion cell.It is disadvantageous in that, when prior art is in order to prevent high-multiplying power discharge, battery pole ear place and battery core caloric value are excessive, shortens cycle performance of battery and increases conductive black content, while reducing caloric value, can reduce the energy density of battery；In order to increase the battery high rate cyclic life-span, selecting to increase binder content, can increase the internal resistance of cell, battery-heating amount increases.
Summary of the invention
When it is an object of the invention to overcome in prior art to prevent high-multiplying power discharge, battery pole ear place and battery core caloric value are excessive, shorten cycle performance of battery and increase conductive black content, while reducing caloric value, can reduce the energy density of battery；In order to increase the battery high rate cyclic life-span, select to increase binder content, the internal resistance of cell can be increased, defect that battery-heating amount increases and a kind of two-way lug and utter misery aluminium foil of adopting is provided, battery-heating amount can be slowed down, the preparation method promoting the flexible-package high-power lithium ion power battery of cycle performance of battery.
To achieve these goals, the present invention is by the following technical solutions:
A kind of preparation method of flexible-package high-power lithium ion power battery, its preparation method comprises the following steps:
A) prepare anode pole piece: by the conductive black SuperLi(Switzerland Te Migao lithium battery conductive black SuperPLi of the LiFePO 4 of anode material of 90-95 weight portion with 2-5 weight portion), the CNT of 2-5 weight portion and the Kynoar of 3-6 weight portion mix, the binding agent N-Methyl pyrrolidone stirring adding 145-155 weight portion forms serosity, it is coated uniformly on plus plate current-collecting body, coated side density is 120-200g/, 110-130 DEG C is rolled the plus plate current-collecting body being coated with positive electrode after dry 10-12 hour with chaser, prepares anode pole piece；
B) cathode pole piece is prepared: mixed by the Kynoar of the lithium titanate of negative pole material of the 90-95 weight portion CNT with 2-5 weight portion and 8 weight portions, stir with the binding agent N-Methyl pyrrolidone of 145-155 weight portion and form serosity, it is coated uniformly on negative current collector, coating density is 60-110g/, roll, after 80-95 DEG C of dry 10-12h, the negative current collector being coated with negative material with chaser, prepare cathode pole piece；
C) barrier film is prepared: the polyethylene that barrier film adopts thickness to be 20-40 micron；
D) prepare electrolyte: the lithium hexafluorophosphate solution of 1.3mol/L is joined containing dimethyl carbonate, Ethyl methyl carbonate, ethylene carbonate, propylene carbonate ester ORGANIC SOLVENT MIXTURES in；
E) aluminum plastic film is prepared: aluminum plastic film adopts thickness 150-155 micron to be followed successively by nylon layer, tack coat, PP layer, tack coat, aluminium foil, tack coat, PP layer laminar composite from outside to inside；
F) lug is prepared: positive pole ear adopts purity more than 98% aluminium material, and negative lug adopts copper nickel plating material；
G) battery is prepared: cathode pole piece made to the barrier film in anode pole piece made for step a), step c), step b) is formed battery core with the form of alternate lamination, two-way welding lug, positive pole aluminium pole ears and plus plate current-collecting body aluminium foil use ultrasonic bonding, and negative pole copper nickel plating lug uses ultrasonic bonding with negative current collector Copper Foil；Then seal at 170-200 DEG C with the aluminum plastic film of step e), the electrolyte in implantation step d), heat-sealing sealing；It is sequentially carried out and shelves-preliminary filling-evacuation-chemical conversion-partial volume, prepare flexible-package high-power lithium ion power battery.In prior art, adopt unidirectional soldering polar ear when preparing battery, and in the technical program, adopt two-way welding lug, it is possible to fundamentally play shortening electric current by path, reduce battery-heating amount, improve cycle performance of battery；
As preferably, in described step a), plus plate current-collecting body is utter misery aluminium foil, and described utter misery aluminum foil thickness is 15-25 micron.In the technical program, adopting utter misery aluminium foil is plus plate current-collecting body, can effectively reduce and contact internal resistance between positive active material with collector so that battery reduces the degrees of expansion of active substance when high rate cyclic, is effectively improved discharge voltage and the cycle performance of battery.
As preferably, dimethyl carbonate in step d), Ethyl methyl carbonate, ethylene carbonate, propylene carbonate ester volume ratio be 43:45:5:7.
As preferably, in step g), the welding manner of two-way welding lug is downhand welding, and weld width is 2-5 millimeter.
As preferably, described utter misery foil substrate adopts rolling aluminum foil.
As preferably, coating active substance used on utter misery aluminium foil is conductive black, the unidirectional 0.5-3 micron of coating layer thickness.
The invention has the beneficial effects as follows:
(1) the two-way lug that battery adopts, it is possible to fundamentally play shortening electric current by path, reduce battery-heating amount, improve cycle performance of battery；
(2) anode pole piece adopts utter misery aluminium foil to be pole fluid, effectively reduces contacting internal resistance between positive active material and collector so that battery reduces the degrees of expansion of active substance when high rate cyclic, is effectively improved discharge voltage and the cycle performance of battery.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further explained:
In the present invention, if not refering in particular to, all of part, percentage ratio are unit of weight, and all of equipment and raw material etc. all can be buied from market or the industry is conventional.
Embodiment one:
Prepare anode pole piece: mix the LiFePO4 of 90 weight portions, the conductive black SuperLi of 2 weight portions, the CNT of 3 weight portions, and 5 Kynoar of weight portion, and the N-methyl adding 150 weight portions adjoins pyrrolidone stirring and forms serosity, it is coated on positive pole base flow body utter misery aluminium foil uniformly, coating density is 120g/, utter misery aluminum foil thickness 25 microns, coating active substance is conductive black, unidirectional 3 microns of coating layer thickness, 110 DEG C are rolled with chaser after dry 10 hours, make anode pole piece.
Prepare cathode pole piece: mix the LiFePO4 of 92 weight portions, the CNT of 2 weight portions, and 8 Kynoar of weight portion, and the N-methyl adding 150 weight portions adjoins pyrrolidone stirring and forms serosity, it is coated on negative pole base flow body Copper Foil uniformly, coating density 60g/, 80 DEG C are rolled with chaser after dry 10 hours, make cathode pole piece.
Prepare barrier film: the microporous polyethylene film (PE) that barrier film adopts thickness to be 25 microns.
Prepare electrolyte: electrolyte adopt 1.3mol/L lithium hexafluoro phosphate be dissolved in the ORGANIC SOLVENT MIXTURES of dimethyl carbonate, Ethyl methyl carbonate, ethylene carbonate, propylene carbonate ester, wherein dimethyl carbonate, Ethyl methyl carbonate, ethylene carbonate, propylene carbonate ester volume ratio be 43:45:5:7.
Prepare aluminum plastic film: aluminum plastic film employing thickness is 152 microns and has nylon layer, tack coat, PP layer, tack coat, aluminium foil, tack coat, PP shape sandwich layer by layer.
Preparing lug: positive pole ear adopts 0.2 millimeters thick aluminium material lug, negative lug adopts 0.2 millimeter of copper nickel plating lug, copper coating 10 microns.
Preparing battery: with laminar, anode pole piece, barrier film, the alternate lamination of cathode pole piece are formed battery core, two-way welding lug, welding manner is downhand welding, and weld width is 5 millimeters；Then carry out aluminum plastic film heat-sealing, inject electrolyte, 170 DEG C of heat-sealing sealings；It is sequentially carried out and shelves-preliminary filling-evacuation-chemical conversion-partial volume, make 6Ah flexible-package high-power lithium ion power battery.
Embodiment two
Prepare anode pole piece: mix the LiFePO4 of 92 weight portions, the conductive black SuperLi of 3 weight portions, the CNT of 2 weight portions, and 3 Kynoar of weight portion, and the N-methyl adding 155 weight portions adjoins pyrrolidone stirring and forms serosity, it is coated on positive pole base flow body utter misery aluminium foil uniformly, coating density is 200g/, utter misery aluminum foil thickness 15 microns, coating active substance is conductive black, unidirectional 0.5 micron of coating layer thickness, 120 DEG C are rolled with chaser after dry 11 hours, make anode pole piece.
Prepare cathode pole piece: mix the LiFePO4 of 90 weight portions, the CNT of 5 weight portions, and 8 Kynoar of weight portion, and the N-methyl adding 145 weight portions adjoins pyrrolidone stirring and forms serosity, it is coated on negative pole base flow body Copper Foil uniformly, coating density is 110g/, and 95 DEG C are rolled with chaser after dry 11 hours, make cathode pole piece.
Prepare barrier film: the microporous polyethylene film (PE) that barrier film adopts thickness to be 25 microns.
Prepare electrolyte: electrolyte adopt 1.3mol/L lithium hexafluoro phosphate be dissolved in the ORGANIC SOLVENT MIXTURES of dimethyl carbonate, Ethyl methyl carbonate, ethylene carbonate, propylene carbonate ester, wherein dimethyl carbonate, Ethyl methyl carbonate, ethylene carbonate, propylene carbonate ester volume ratio be 43:45:5:7.
Prepare aluminum plastic film: aluminum plastic film employing thickness is 150 microns and has nylon layer, tack coat, PP layer, tack coat, aluminium foil, tack coat, PP shape sandwich layer by layer.
Preparing lug: positive pole ear adopts 0.2 millimeters thick aluminium material lug, negative lug adopts 0.2 millimeter of copper nickel plating lug, copper coating 2 microns.
Preparing battery: with laminar, anode pole piece, barrier film, the alternate lamination of cathode pole piece are formed battery core, two-way welding lug, welding manner is downhand welding, and weld width is 2 millimeters；Then carry out aluminum plastic film heat-sealing, inject electrolyte, 200 DEG C of heat-sealing sealings；It is sequentially carried out and shelves-preliminary filling-evacuation-chemical conversion-partial volume, make 6Ah flexible-package high-power lithium ion power battery.
Embodiment three
Prepare anode pole piece: mix the LiFePO4 of 95 weight portions, the conductive black SuperLi of 5 weight portions, the CNT of 5 weight portions, and 6 Kynoar of weight portion, and the N-methyl adding 150 weight portions adjoins pyrrolidone stirring and forms serosity, it is coated on positive pole base flow body utter misery aluminium foil uniformly, coating density is 180g/, utter misery aluminum foil thickness 20 microns, coating active substance is conductive black, unidirectional 2 microns of coating layer thickness, 120 DEG C are rolled with chaser after dry 12 hours, make anode pole piece.
Prepare cathode pole piece: mix the LiFePO4 of 92 weight portions, the CNT of 3 weight portions, and 8 Kynoar of weight portion, and the N-methyl adding 155 weight portions adjoins pyrrolidone stirring and forms serosity, it is coated on negative pole base flow body Copper Foil uniformly, coating density is 90g/, and 90 DEG C are rolled with chaser after dry 12 hours, make cathode pole piece.
Prepare barrier film: the microporous polyethylene film (PE) that barrier film adopts thickness to be 25 microns.
Prepare electrolyte: electrolyte adopt 1.3mol/L lithium hexafluoro phosphate be dissolved in the ORGANIC SOLVENT MIXTURES of dimethyl carbonate, Ethyl methyl carbonate, ethylene carbonate, propylene carbonate ester, wherein dimethyl carbonate, Ethyl methyl carbonate, ethylene carbonate, propylene carbonate ester volume ratio be 43:45:5:7.
Prepare aluminum plastic film: aluminum plastic film employing thickness is 155 microns and has nylon layer, tack coat, PP layer, tack coat, aluminium foil, tack coat, PP shape sandwich layer by layer.
Preparing lug: positive pole ear adopts 0.2 millimeters thick aluminium material lug, negative lug adopts 0.2 millimeter of copper nickel plating lug, copper coating 5 microns.
Preparing battery: with laminar, anode pole piece, barrier film, the alternate lamination of cathode pole piece are formed battery core, two-way welding lug, welding manner is downhand welding, and weld width is 4 millimeters；Then carry out aluminum plastic film heat-sealing, inject electrolyte, 185 DEG C of heat-sealing sealings；It is sequentially carried out and shelves-preliminary filling-evacuation-chemical conversion-partial volume, make 6Ah flexible-package high-power lithium ion power battery.
Comparative example 1
The method preparing battery is substantially the same manner as Example 1, only difference is that: lug adopts unidirectional welding manner.
Comparative example 2
The method preparing battery is substantially the same manner as Example 1, only difference is that: the rolling aluminum foil that plus plate current-collecting body adopts thickness to be 20 microns.
Cycle life performance is tested:
The battery that above-described embodiment 1,2,3 and comparative example 1,2 prepare respectively is taken 3 capacity surplus ratios measured 5000 times after circulating.Assay method is: at 25 degrees c by electric current with 30A constant current charge to 3.6V, then turn constant-voltage charge, by electric current 300mA；Shelve 5 minutes, be discharged to 2.0V with 30A constant current, measure the initial discharge capacity obtaining battery；After shelving 5 minutes, repeat the above steps 4500 times, make continuous print charge-discharge test, obtain the capacity surplus ratio after 4500 circulations of battery, calculate the capacity surplus ratio of battery after circulating according to the following formula 4500 times.
Discharge capacity/initial discharge capacity × 100% after the circulation of capacity surplus ratio=4500 time.
Cycle life performance test result is in Table 1.As seen from the table, the embodiment 1 capacity surplus ratio after 4500 circulations is about 86.4%, the embodiment 2 capacity surplus ratio after 4500 circulations is about 84.9%, the embodiment 3 capacity surplus ratio after 4500 circulations is about 85.6%, and the capacity surplus ratio that comparative example 1 is after 4500 circulations only has about 81.0%, the comparative example 2 capacity surplus ratio after 4500 circulations only has about 73.5%.The test result of embodiment 1,2,3 is far superior to comparative example 1 and 2, and this illustrates the cycle life adopting two-way lug and utter misery aluminium foil to be conducive to improving battery.
Multiplying power discharging property is tested:
The battery that above-described embodiment 1,2,3 and comparative example 1, comparative example 2 are worth respectively is taken 3 and measures 30C multiplying power discharging property.Assay method is: at 25 degrees c by electric current with 6A constant current charge to 3.6V, then turn constant-voltage charge, by electric current 300mA；Shelve 5 minutes, be discharged to 2.0V with 180A constant current, measure and obtain battery multiplying power discharging platform voltage.
High rate performance test result is in Table 1.As seen from the table, it is 2.783V that embodiment 1 battery 30C multiplying power puts a platform voltage, it is 2.758V that embodiment 2 battery 30C multiplying power puts a platform voltage, it is 2.773V that embodiment 3 battery 30C multiplying power puts a platform voltage, and comparative example 1 battery 30C multiplying power to put a platform voltage be 2.625V, comparative example 2 battery 30C multiplying power discharging platform voltage is 2.341V.The test result of embodiment 1,2,3 is far superior to comparative example 1 and 2, and this illustrates the multiplying power discharging property adopting two-way lug and utter misery aluminium foil to be conducive to improving battery.
Multiplying power discharging temperature test:
The battery that above-described embodiment 1,2,3 and comparative example 1, comparative example 2 prepare respectively is taken 3 and measures 30C multiplying power discharging battery surface temperature rise situation.Assay method is: at 25 degrees c by electric current with 6A constant current charge to 3.6V, then turn constant-voltage charge, by electric current 300mA；Shelve 5 minutes, be discharged to 2.0V with 180A constant current, measure and obtain battery surface temperature rise during battery 30C multiplying power discharging.
High rate performance temperature test result is in Table 1.As seen from the table, embodiment 1 battery 30C multiplying power discharging battery surface temperature rise 25 degree, embodiment 2 battery 30C multiplying power discharging battery surface temperature rise 29 degree, embodiment 3 battery 30C multiplying power discharging battery surface temperature rise 27 degree, and comparative example 1 battery 30C multiplying power discharging battery surface temperature rise 34 degree, comparative example 2 battery 30C multiplying power discharging battery surface temperature rise 47 degree.The test result of embodiment 1,2,3 is far superior to comparative example 1 and 2, and this illustrates to adopt two-way lug and utter misery aluminium foil to be conducive to improving the multiplying power discharging temperature rise model of battery.
Table 1
Above-described embodiment is only intended to description and interpretation present disclosure, it is impossible to constitute limitation of the scope of the invention.Although the present invention has been done and has enumerated in more detail by inventor, but, described specific embodiment, according to the disclosed content of Summary and embodiment, can be made various amendment or/and it is obvious for supplementing or adopting similar mode to substitute by those skilled in the art.
Claims (1)
1. the preparation method of a flexible-package high-power lithium ion power battery, it is characterised in that described preparation method comprises the following steps:
A) anode pole piece is prepared: the LiFePO 4 of anode material of the 90-95 weight portion CNT of conductive black SuperLi, 2-5 weight portion with 2-5 weight portion and the Kynoar of 3-6 weight portion are mixed, the N-Methyl pyrrolidone stirring adding 145-155 weight portion forms serosity, it is coated uniformly on plus plate current-collecting body, coated side density is 120-200g/, 110-130 DEG C is rolled the plus plate current-collecting body being coated with positive electrode after dry 10-12 hour with chaser, prepares anode pole piece；Plus plate current-collecting body is utter misery aluminium foil, and described utter misery aluminum foil thickness is 15-25 micron；Described utter misery foil substrate adopts rolling aluminum foil, and coating active substance used on utter misery aluminium foil is conductive black, and coating layer thickness is 0.5 or 2 micron；
B) cathode pole piece is prepared: mixed by the Kynoar of the lithium titanate of negative pole material of the 90-95 weight portion CNT with 2-5 weight portion and 8 weight portions, stir with the N-Methyl pyrrolidone of 145-155 weight portion and form serosity, it is coated uniformly on negative current collector, coating density is 60-110g/, roll, after 80-95 DEG C of dry 10-12h, the negative current collector being coated with negative material with chaser, prepare cathode pole piece；
C) barrier film is prepared: the polyethylene that barrier film adopts thickness to be 20-40 micron；
D) prepare electrolyte: the lithium hexafluorophosphate solution of 1.3mol/L is joined containing dimethyl carbonate, Ethyl methyl carbonate, ethylene carbonate, propylene carbonate ester ORGANIC SOLVENT MIXTURES in, dimethyl carbonate, Ethyl methyl carbonate, ethylene carbonate, propylene carbonate ester volume ratio be 43:45:5:7；
E) aluminum plastic film is prepared: aluminum plastic film adopts thickness 150-155 micron to be followed successively by nylon layer, tack coat, PP layer, tack coat, aluminium foil, tack coat, PP layer laminar composite from outside to inside；
F) lug is prepared: positive pole ear adopts purity more than 98% aluminium material, and negative lug adopts copper nickel plating material；
G) battery is prepared: cathode pole piece made to the barrier film in anode pole piece made for step a), step c), step b) is formed battery core with the form of alternate lamination, two-way welding lug, welding manner is downhand welding, weld width is 2-5 millimeter, positive pole aluminium pole ears and plus plate current-collecting body aluminium foil use ultrasonic bonding, and negative pole copper nickel plating lug uses ultrasonic bonding with negative current collector Copper Foil；Then seal at 170-200 DEG C with the aluminum plastic film of step e), the electrolyte in implantation step d), heat-sealing sealing；It is sequentially carried out and shelves-preliminary filling-evacuation-chemical conversion-partial volume, prepare flexible-package high-power lithium ion power battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110452922.2A CN103187593B (en) | 2011-12-30 | 2011-12-30 | A kind of preparation method of flexible-package high-power lithium ion power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110452922.2A CN103187593B (en) | 2011-12-30 | 2011-12-30 | A kind of preparation method of flexible-package high-power lithium ion power battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103187593A CN103187593A (en) | 2013-07-03 |
| CN103187593B true CN103187593B (en) | 2016-07-06 |
Family
ID=48678655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110452922.2A Active CN103187593B (en) | 2011-12-30 | 2011-12-30 | A kind of preparation method of flexible-package high-power lithium ion power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103187593B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531848A (en) * | 2013-09-13 | 2014-01-22 | 东莞市天楠光电科技有限公司 | Overlapping winding preparation method of lithium ion secondary battery |
| CN103779612A (en) * | 2013-12-19 | 2014-05-07 | 宁波维科电池股份有限公司 | Preparation method of flexibly packaged lithium ion power battery |
| CN105098252A (en) * | 2014-05-06 | 2015-11-25 | 深圳市沃特玛电池有限公司 | Method for manufacturing high-rate and high-temperature lithium titanate polymer lithium ion battery |
| CN105470456B (en) * | 2014-10-13 | 2018-05-18 | 万向一二三股份公司 | A kind of lithium titanate anode pole piece and preparation method thereof |
| CN107681149A (en) * | 2016-08-02 | 2018-02-09 | 万向二三股份公司 | A kind of fast charging type metatitanic acid lithium dynamical battery |
| CN106876714B (en) * | 2017-01-23 | 2020-04-07 | 浙江钱江锂电科技有限公司 | Lithium ion battery for automobile start-stop system |
| CN107221701A (en) * | 2017-05-22 | 2017-09-29 | 中国科学院上海微系统与信息技术研究所 | A kind of extended-life lithium ion battery and preparation method thereof |
| CN108493005B (en) * | 2018-01-22 | 2020-02-07 | 江苏集盛星泰新能源科技有限公司 | Preparation method of lithium ion capacitor |
| CN109935756B (en) * | 2018-11-27 | 2022-05-13 | 万向一二三股份公司 | Preparation method of lithium ion battery composite diaphragm and lithium ion battery containing composite diaphragm |
| CN113013406A (en) * | 2021-03-22 | 2021-06-22 | 江西迪比科股份有限公司 | High-power soft package battery and preparation method thereof |
| CN114323138B (en) * | 2021-12-29 | 2023-12-26 | 江苏天鹏电源有限公司 | Rapid evaluation method for dynamic performance of negative electrode binder for lithium ion battery |
| CN115000631A (en) * | 2022-05-16 | 2022-09-02 | 万向一二三股份公司 | High-power lithium battery with long calendar life and manufacturing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752613A (en) * | 2008-12-16 | 2010-06-23 | 天津力神电池股份有限公司 | Power soft packaging lithium ion battery with high power |
| CN101958418A (en) * | 2010-03-04 | 2011-01-26 | 常德力元新材料有限责任公司 | Electrode current collector material of lithium ion battery and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101414673B (en) * | 2008-11-07 | 2011-01-12 | 李学兵 | Positive tab for polymer or liquid flexible package lithium ion battery cell and production method thereof |
| CN102117931B (en) * | 2009-12-31 | 2013-06-12 | 珠海光宇电池有限公司 | High-rate cylindrical lithium ion battery with anode of modified lithium manganese oxide |
-
2011
- 2011-12-30 CN CN201110452922.2A patent/CN103187593B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752613A (en) * | 2008-12-16 | 2010-06-23 | 天津力神电池股份有限公司 | Power soft packaging lithium ion battery with high power |
| CN101958418A (en) * | 2010-03-04 | 2011-01-26 | 常德力元新材料有限责任公司 | Electrode current collector material of lithium ion battery and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103187593A (en) | 2013-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103187593B (en) | A kind of preparation method of flexible-package high-power lithium ion power battery | |
| CN103733391B (en) | Lithium rechargeable battery | |
| CN101320823B (en) | Secondary battery and method of producing the secondary battery | |
| CN103779612A (en) | Preparation method of flexibly packaged lithium ion power battery | |
| CN103875118B (en) | Lithium rechargeable battery | |
| US20100273052A1 (en) | Nonaqueous electrolyte secondary battery and method for manufacturing the same | |
| US20170040639A1 (en) | Electrolyte and lithium-ion battery comprising said electrolyte | |
| CN103187555B (en) | The manufacture method of a kind of lithium ion power battery cathode pole piece and use the lithium-ion-power cell of this anode pole piece | |
| CN106450102A (en) | Modified graphite separator for lithium-sulfur battery, preparation method of modified graphite separator and lithium-sulfur battery | |
| US20110059351A1 (en) | Lithium ion secondary battery | |
| CN103187594B (en) | A kind of manufacture method of soft package lithium ion power battery | |
| CN101388449A (en) | Positive plate of high power lithium ionic cell and lithium ionic cell containing the same | |
| JP5601361B2 (en) | Battery electrode | |
| CN102769149B (en) | The manufacture method of polymer Li-ion battery and polymer Li-ion battery | |
| CN109768278A (en) | A kind of lithium ion battery | |
| CN103155229A (en) | Secondary battery | |
| CN111755664A (en) | Electrode of lithium ion battery and lithium ion battery | |
| CN101685883A (en) | Polymer lithium ion battery and preparation method thereof | |
| CN103718353B (en) | Lithium rechargeable battery | |
| CN109346669A (en) | Battery anode slice and its manufacturing method and lithium ion battery and its manufacturing method | |
| CN101453013A (en) | Negative electrode of lithium ionic cell, preparing method and cell thereof | |
| CN101615697A (en) | A kind of lithium ion battery | |
| CN100449824C (en) | Battery pole piece and manufacturing method of lithium ion secordary battery containing the pole piece | |
| CN101934269A (en) | Coating process for cathode material lithium iron phosphate and lithium ion battery thereof | |
| CN102683743A (en) | High-power lithium oil 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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211109 Address after: No.855, Jianshe 2nd Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee after: Wanxiang A123 Co.,Ltd. Address before: 311215 technology center of Wanxiang Group Company, No. 1 Wanxiang Road, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: WANXIANG EV Co.,Ltd. Patentee before: WANXIANG GROUP Co.,Ltd. |