CN105742696A - Method for compounding diaphragm and pole piece of wound laminated battery - Google Patents
Method for compounding diaphragm and pole piece of wound laminated battery Download PDFInfo
- Publication number
- CN105742696A CN105742696A CN201610298572.1A CN201610298572A CN105742696A CN 105742696 A CN105742696 A CN 105742696A CN 201610298572 A CN201610298572 A CN 201610298572A CN 105742696 A CN105742696 A CN 105742696A
- Authority
- CN
- China
- Prior art keywords
- pole piece
- cross
- barrier film
- linking agent
- diaphragm
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- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000013329 compounding Methods 0.000 title abstract 3
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 27
- 239000000178 monomer Substances 0.000 claims abstract description 27
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 238000004132 cross linking Methods 0.000 claims abstract description 16
- 230000004888 barrier function Effects 0.000 claims description 56
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000007598 dipping method Methods 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 4
- 229920003180 amino resin Polymers 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 238000000576 coating method Methods 0.000 abstract description 14
- 239000011248 coating agent Substances 0.000 abstract description 13
- 239000000126 substance Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 2
- 239000003292 glue Substances 0.000 description 11
- 239000000758 substrate Substances 0.000 description 8
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 6
- 238000004026 adhesive bonding Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 229910001416 lithium ion Inorganic materials 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- FEWFXBUNENSNBQ-UHFFFAOYSA-N 2-hydroxyacrylic acid Chemical compound OC(=C)C(O)=O FEWFXBUNENSNBQ-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 239000010954 inorganic particle Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 206010067482 No adverse event Diseases 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 150000001261 hydroxy acids Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Classifications
-
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0583—Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
- H01M50/461—Separators, membranes or diaphragms characterised by their combination with electrodes with adhesive layers between electrodes and separators
-
- 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 invention discloses a method for compounding a diaphragm and a pole piece of a wound laminated battery. Through cross-linking reaction of a polymerization monomer and a cross-linking agent, the diaphragm can be compounded and adhered to the pole piece. The method comprises the following steps of: firstly, coating a layer of a polymerization monomer solution on a to-be-adhered diaphragm; coating a layer of a cross-linking agent solution on a to-be-adhered pole piece; and finally directly contacting the coated diaphragm with the coated pole piece, exerting the pressure of 0.1-0.5T, heating to 50-100 DEG C, performing cross-linking reaction on the polymerization monomer and the cross-linking agent, thereby compounding and connecting the diaphragm with the pole piece. By adopting the method, a conventional mode that the surface of the diaphragm or the pole piece is coated by an adhesive is avoided, but the diaphragm and the pole piece can be tightly bounded through cross-linking reaction, the chemical bond energy generated in chemical reaction is greatly higher than adhesion strength of a common adhesive, the adhesion property of coated layers can be greatly improved, and the pole piece and the diaphragm can be relatively solidly bounded.
Description
Technical field
The invention belongs to technical field of lithium ion, be specifically related to barrier film and the pole piece complex method of a kind of takeup type laminated batteries.
Background technology
Lithium ion battery, as a new generation's electrochmical power source, has the advantage that the batteries such as ni-mh, NI-G, plumbic acid are incomparable, is widely used at present in consumption electronic product due to it, is the most also applied in all kinds of pure electronic, hybrid vehicle as electrokinetic cell simultaneously.The production method of lithium ion battery mainly has takeup type with stacked at present, from the point of view of in terms of performance of lithium ion battery with actual production two: coiled advantage is that processing procedure is easy, stacked advantage is that battery each side quality is good, for the advantage of comprehensive two kinds of techniques, focus of attention is concentrated on takeup type laminated batteries aspect by current people.
The micro-pore septum of industrialized production is essentially all TPO barrier film at present, whether polyethylene or polypropylene type barrier film, it is less desirable to the safety of lithium ion battery that its hot melting temperature and relatively low mechanical performance cause them, therefore people are in order to improve the thermostability of polyalkene diaphragm to strengthen the safety of lithium ion battery, additional layer or Multi-layer thermal stability is more preferable, mechanical performance is higher material in original barrier film substrate, such as inorganic ceramic material etc., form organic-inorganic composite diaphragm.In order to give full play to the performance of inorganic coating to embody its lifting to barrier film security performance, should there is the inorganic particle of q.s, however as increasing of inorganic particle content, for ensureing that the cohesive between this inorganic coating to barrier film corresponding need to improve the content of binding agent.The most conventional binding agent such as Kynoar PVDF, carboxyl methyl cellulose, polyacrylic acid PAA etc. occurs the principle of adhesive effect to be all intermolecular force or hydrogen bond, for takeup type laminated batteries, as being combined with electrode by the barrier film with inorganic coating, its consumption of binder needed should be more again.
For making takeup type laminated batteries, the most topmost operation is exactly to realize being adhesively fixed of barrier film and positive/negative plate, it is on barrier film, first carry out gluing for the bonding of barrier film Yu pole piece, currently mainly method, then pole piece and gluing barrier film are carried out the compound purpose reaching both bondings of heat.At present conventional barrier film glue spreading method is rubbing method, but uses the technology mode of coating to easily cause glue coating inequality, and causes the closed pore that membrane portions region glue too much causes；Further, since glue coating is the most relatively thin, therefore the requirement for coating process is the most harsh.
The invention provides the complex method of a kind of novel coiling formula laminated batteries barrier film and pole piece, the pole piece complex method of the present invention avoids traditional mode carrying out gluing at barrier film or pole piece, directly pole piece is contacted with barrier film and can realize close adhesion by cross-linking reaction, and the chemical bond energy that chemical reaction produces is much larger than intermolecular force, the adhesion property that be coated with interlayer is greatly improved, makes the bonding between pole piece and barrier film more firm.
Summary of the invention
It is an object of the invention to: provide a kind of and avoid traditional mode carrying out gluing in barrier film or pole piece, directly pole piece and membrane contacts are realized by both cross-linking reactions the complex method bonded, and this method can be greatly improved the adhesion property being coated with interlayer, make the bonding between pole piece and barrier film more firm.
In order to achieve the above object, the present invention adopts the following technical scheme that
The barrier film of a kind of takeup type laminated batteries and pole piece complex method, it makes barrier film and pole piece composite joint by the cross-linking reaction between polymerization monomer and cross-linking agent, and its step is as follows:
(1) barrier film to be bonded is dipped last layer polymerization monomer solution；
(2) pole piece to be bonded is dipped last layer cross-linking agent solution；
(3) barrier film after dipping directly contacts with pole piece, applies the pressure of 0.1-0.5T, is heated to 50-100 DEG C, makes to crosslink between polymerization monomer and cross-linking agent reaction, thus got up with pole piece composite joint by barrier film.
Scheme further, described polymerization monomer solution is that polymerization monomer dispersed with stirring is formed in solvent the polymerization monomer solution that mass percent is 1 ~ 10%.
Scheme further, it is the cross-linking agent solution of 1 ~ 10% that cross-linking agent is dissolved in solvent formation mass percent by described cross-linking agent solution.
Scheme further, described solvent is water, ethanol, N-Methyl pyrrolidone or carbonic ester.
Scheme further, described polymerization monomer is epoxy resin, acrylic.
Scheme further, described cross-linking agent is polyamide, amino resins, polyurethane.
Being combined of barrier film and pole piece is realized by cross-linking reaction be polymerized between monomer and cross-linking agent dipped respectively between laminated batteries septation of the present invention and pole piece, the chemical bond energy that its chemical reaction produces is much larger than intermolecular force, greatly improve the adhesion property being coated with interlayer, make the bonding between pole piece and barrier film more firm；And avoid and traditional carry out the mode of gluing at barrier film or pole piece and be attached.Further, since be to be stained with polymerization monomer or cross-linking agent solution by the way of dipping, thus without using the traditional approachs such as coating.
The crosslinking of the present invention is instead according to different monomers and cross-linking agent, and corresponding reaction condition is different, can be normal temperature cure or heating.
The complex method of the present invention is applicable not only to the compound of barrier film and positive and negative electrode pole piece, applies also for that barrier film is compound with coating, pole piece is compound with coating.
So the beneficial effects of the present invention is:
(1) barrier film after the present invention will dip respectively in polymerization monomer with cross-linking agent glue directly contacts with pole piece and realizes both bondings by cross-linking reaction, reach the purpose that barrier film is fixing with pole piece, this method avoids traditional mode carrying out gluing in barrier film or pole piece, the adhesion property that be coated with interlayer additionally can be greatly improved, make the bonding between pole piece and barrier film more firm.
(2) complex method of the present invention is to be connected based on the chemical bond produced between polymerization monomer and cross-linking agent, and it is far longer than the intermolecular force of conventional binders, and these cross-linking agent confrontation battery performances have no adverse effects.
Accompanying drawing explanation
In conjunction with accompanying drawing, the present invention is further described:
Fig. 1 is the structural representation of the barrier film substrate after dipping in aggregated monomer solution in embodiment 1；
Fig. 2 is the pole piece structure schematic diagram after dipping in crosslinked agent solution in embodiment 1；
Fig. 3 is to be polymerized monomer in embodiment 1 to react schematic diagram with cross-linking agent；
Fig. 4 is that in embodiment 1, barrier film after cross-linking reaction and pole piece are combined schematic diagram；
Reference: 1-barrier film substrate；2-is polymerized monomer；3-cross-linking agent；4-cross-linking products；5-chemical bond；6-pole piece.
Detailed description of the invention
Embodiment
1
:
In the conjunction pulp grinder of 5L, add the N-Methyl pyrrolidone NMP of 3L, the epoxy resin being subsequently adding 100g dissolves, stirring is to the solution forming clear, scattered epoxy resin solution is placed in open-top receptacle, then has passed through to dip in the glue of epoxy resin for 20HZ with speed by barrier film substrate；As it is shown in figure 1, polymerization monomer 2 sticks in barrier film substrate 1；
The polyamide NMP adding 100g in another conjunction pulp grinder dissolves, and after being uniformly dispersed, then is passed through to complete to dip in the glue of polyamide by pole piece；As in figure 2 it is shown, cross-linking agent 3 sticks on pole piece 6；
Barrier film after dipping carries out contacting and bestowing 0.2T pressure with anode pole piece, then makes cross-linking and curing reaction occur by the baking oven of 80 DEG C, i.e. realizes the compound of barrier film and anode pole piece.As shown in Figure 3,4, when both contact and apply certain pressure with temperature, polymerization monomer 2 and cross-linking agent 3 crosslink reaction and generate cross-linking products 4, i.e. produce chemical bond 5, thus closely bond integral by barrier film substrate 1 and pole piece 6.
Embodiment 2 :In the conjunction pulp grinder of 5L, add the deionized water of 3L, the acrylic resin being subsequently adding 100g dissolves, stirring is to the solution forming clear, scattered acrylic acid solution is placed in open-top receptacle, then has passed through to dip in the glue of acrylic resin with certain speed by barrier film substrate；The amino resins adding 100g in another conjunction pulp grinder dissolves with deionized water equally, after Monodispersed is uniform, again barrier film substrate is passed through to complete to dip in the glue of amino resins with given pace, then the barrier film after dipping carries out contacting and bestow 0.5T pressure with cathode pole piece, then make cross-linking and curing reaction occur by the baking oven of 100 DEG C, i.e. realize the compound of barrier film and cathode pole piece.
Embodiment 3 :In the conjunction pulp grinder of 5L, add the N-Methyl pyrrolidone NMP of 3L, the hydroxy acrylic acid being subsequently adding 100g dissolves, stirring is to the solution forming clear, scattered hydroxy acid solution is placed in open-top receptacle, then has passed through to dip in the glue of hydroxy acrylic acid with certain speed by the barrier film with inorganic coating；The polyurethane adding 100g in another conjunction pulp grinder dissolves with NMP equally, after Monodispersed is uniform, again inorganic coating barrier film is passed through to complete to dip in the glue of polyurethane with given pace, then the coated separator after dipping carries out contacting and bestow 0.1T pressure with anode pole piece, when then passing through the baking oven of 50 DEG C and keep more than 10min, chien shih cross-linking and curing reaction occurs, and i.e. realizes coated separator and is combined with anode pole piece.
It should be pointed out that, the professional and technical personnel for making the art, on the premise of without departing from the technology of the present invention principle, be that by the multiple amendment to these embodiments, and these amendments also should be regarded as in the range of the present invention should protect.
Claims (6)
1. the barrier film of a takeup type laminated batteries and pole piece complex method, it is characterised in that: making barrier film and pole piece compoiste adhering by the cross-linking reaction between polymerization monomer and cross-linking agent, its step is as follows:
(1) barrier film to be bonded is dipped last layer polymerization monomer solution；
(2) pole piece to be bonded is dipped last layer cross-linking agent solution；
(3) barrier film after dipping directly contacts with pole piece, applies the pressure of 0.1-0.5T, is heated to 50-100 DEG C, makes to crosslink between polymerization monomer and cross-linking agent reaction, thus got up with pole piece composite joint by barrier film.
The barrier film of a kind of takeup type laminated batteries the most according to claim 1 and pole piece complex method, it is characterised in that: described polymerization monomer solution is that polymerization monomer dispersed with stirring is formed in solvent the polymerization monomer solution that mass percent is 1 ~ 10%.
The barrier film of a kind of takeup type laminated batteries the most according to claim 1 and pole piece complex method, it is characterised in that: it is the cross-linking agent solution of 1 ~ 10% that cross-linking agent is dissolved in solvent formation mass percent by described cross-linking agent solution.
4. according to barrier film and the pole piece complex method of a kind of takeup type laminated batteries described in Claims 2 or 3, it is characterised in that: described solvent is water, ethanol, N-Methyl pyrrolidone or carbonic ester.
The barrier film of a kind of takeup type laminated batteries the most according to claim 1 and pole piece complex method, it is characterised in that: described polymerization monomer is epoxy resin, acrylic.
The barrier film of a kind of takeup type laminated batteries the most according to claim 1 and pole piece complex method, it is characterised in that: described cross-linking agent is polyamide, amino resins, polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298572.1A CN105742696B (en) | 2016-05-04 | 2016-05-04 | A kind of diaphragm of takeup type laminated batteries and pole piece complex method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298572.1A CN105742696B (en) | 2016-05-04 | 2016-05-04 | A kind of diaphragm of takeup type laminated batteries and pole piece complex method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105742696A true CN105742696A (en) | 2016-07-06 |
| CN105742696B CN105742696B (en) | 2018-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610298572.1A Active CN105742696B (en) | 2016-05-04 | 2016-05-04 | A kind of diaphragm of takeup type laminated batteries and pole piece complex method |
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| Country | Link |
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| CN (1) | CN105742696B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110400900A (en) * | 2019-06-20 | 2019-11-01 | 合肥国轩高科动力能源有限公司 | A kind of mouth-sealing method improving lithium-ion electric core leakage rate |
| CN111864275A (en) * | 2019-04-26 | 2020-10-30 | 北京卫蓝新能源科技有限公司 | Battery cell, preparation method thereof and lithium ion battery |
| CN112909432A (en) * | 2021-01-26 | 2021-06-04 | 东莞维科电池有限公司 | High-hardness lithium ion battery |
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| KR20040048357A (en) * | 2002-12-02 | 2004-06-09 | 닛토덴코 가부시키가이샤 | Crosslinking polymer-supported porous film for battery separator and method for producing battery using the same |
| CN102306841A (en) * | 2011-08-20 | 2012-01-04 | 惠州Tcl金能电池有限公司 | Gel phase polymer lithium ion battery and manufacturing method thereof |
| CN104037450A (en) * | 2014-05-18 | 2014-09-10 | 深圳赛骄阳能源科技有限公司 | Gel-state polymer lithium ion battery and preparation method thereof |
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2016
- 2016-05-04 CN CN201610298572.1A patent/CN105742696B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040048357A (en) * | 2002-12-02 | 2004-06-09 | 닛토덴코 가부시키가이샤 | Crosslinking polymer-supported porous film for battery separator and method for producing battery using the same |
| CN102306841A (en) * | 2011-08-20 | 2012-01-04 | 惠州Tcl金能电池有限公司 | Gel phase polymer lithium ion battery and manufacturing method thereof |
| CN104037450A (en) * | 2014-05-18 | 2014-09-10 | 深圳赛骄阳能源科技有限公司 | Gel-state polymer lithium ion battery and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111864275A (en) * | 2019-04-26 | 2020-10-30 | 北京卫蓝新能源科技有限公司 | Battery cell, preparation method thereof and lithium ion battery |
| CN111864275B (en) * | 2019-04-26 | 2021-10-15 | 北京卫蓝新能源科技有限公司 | Battery cell, preparation method thereof and lithium ion battery |
| CN110400900A (en) * | 2019-06-20 | 2019-11-01 | 合肥国轩高科动力能源有限公司 | A kind of mouth-sealing method improving lithium-ion electric core leakage rate |
| CN110400900B (en) * | 2019-06-20 | 2022-04-12 | 合肥国轩高科动力能源有限公司 | Sealing method for improving leakage rate of lithium ion battery cell |
| CN112909432A (en) * | 2021-01-26 | 2021-06-04 | 东莞维科电池有限公司 | High-hardness lithium ion battery |
Also Published As
| Publication number | Publication date |
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| CN105742696B (en) | 2018-11-30 |
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Application publication date: 20160706 Assignee: Shanghai Xuanyi New Energy Development Co.,Ltd. Assignor: Hefei Guoxuan High-Tech Power Energy Co.,Ltd. Contract record no.: X2023980049293 Denomination of invention: A composite method of separator and electrode for a coiled laminated battery Granted publication date: 20181130 License type: Common License Record date: 20231207 |