CN105789709A - Method for making diaphragm electrostatically charged and making diaphragm adsorbed on pole piece - Google Patents
Method for making diaphragm electrostatically charged and making diaphragm adsorbed on pole piece Download PDFInfo
- Publication number
- CN105789709A CN105789709A CN201610287801.XA CN201610287801A CN105789709A CN 105789709 A CN105789709 A CN 105789709A CN 201610287801 A CN201610287801 A CN 201610287801A CN 105789709 A CN105789709 A CN 105789709A
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- CN
- China
- Prior art keywords
- barrier film
- pole piece
- electrostatic
- diaphragm
- battery
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000003068 static effect Effects 0.000 claims abstract description 6
- 230000004888 barrier function Effects 0.000 claims description 45
- 238000007664 blowing Methods 0.000 claims description 8
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 7
- 229910001416 lithium ion Inorganic materials 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 229910021385 hard carbon Inorganic materials 0.000 claims description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000002931 mesocarbon microbead Substances 0.000 claims description 2
- 239000004745 nonwoven fabric Substances 0.000 claims description 2
- 229910021384 soft carbon Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000004804 winding Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract 3
- 238000013329 compounding Methods 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000004224 protection Effects 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization 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
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention provides a method for making a diaphragm charged with static electricity and making the diaphragm adsorbed on a pole piece, which comprises the steps of firstly making the diaphragm charged with static electricity through an electrostatic generator, then compounding the diaphragm and the pole piece, closely attaching the pole piece and the diaphragm together under the action of the static electricity, and subsequently realizing the rapid winding of the diaphragm and the pole piece, thereby realizing the manufacturing of a winding type laminated battery, solving the problem that the manufacturing efficiency of the existing laminated battery adopting a Z-shaped structure is low, meanwhile, the winding type laminated battery has more stable structure than the Z-shaped laminated battery, and the relative position of the pole piece is not easy to change under the action of external force.
Description
Technical field
The present invention relates to technical field of lithium-ion battery, be specifically related to a kind of make mode separation strapping electrostatic the method making diaphragm adsorption on pole piece.
Background technology
Along with making constant progress of science and technology, various portable electric appts, as smart mobile phone, laptop computer etc. are widely used, people are more and more higher to the degree of dependence of electronic product.Meanwhile, these electronic equipments are also increasingly harsher to the requirement of electrochmical power source performance.And lithium ion battery is widely used in the middle of electronic product with advantages such as its energy density height, voltage stabilization, memory-less effect and environmental protections.Lithium ion battery is of a great variety, from having seen cylinder in shape, square, abnormity；Have takeup type from structure, stacked etc..Different types of battery production technology and flow process just have very big difference.
In coiled battery, when battery is carried out discharge and recharge, pole piece can expand, shrink, and makes pole piece and barrier film be subject to tension force, and battery deforms.This deformation can cause the contact between pole piece, barrier film and electrolyte to be deteriorated, and produces gap, in turn result in the uneven of pole piece CURRENT DISTRIBUTION, the performance of battery is had very ill effect between pole piece and barrier film.
At present, solve to do laminated battery plate exactly because electrode material produces cell deformation best bet in charge and discharge process.This wherein crucial mode being how fixing pole piece and barrier film and lamination.
Summary of the invention
It is an object of the invention to provide and a kind of make mode separation strapping electrostatic the method making diaphragm adsorption on pole piece, it is intended to solve current laminated batteries zigzag winding, manufacture inefficient problem.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that
A kind of make mode separation strapping electrostatic the method making diaphragm adsorption on pole piece, it is achieved the device of the method includes for being sequentially transmitted the blowing end of barrier film, guide roller, backing plate and volume pin, and for producing the electrostatic generator of electrostatic, described method comprises the steps:
1) barrier film for lithium ion battery is placed on even running on blowing end, guide roller, backing plate and volume pin；
2) electrostatic generator is opened by barrier film produces electrostatic；
3) battery anode slice and battery cathode sheet are subsequently placed at the fixed position of static electrification barrier film by setting；
4) pole piece is adsorbed on barrier film under the effect of barrier film electrostatic, and barrier film is wound into core with battery anode slice and battery cathode sheet by volume pin.
Preferably, the both positive and negative polarity of described electrostatic generator is arranged on the homonymy of barrier film, or is separately positioned on the both sides of barrier film.
Preferably, described guide roller includes tightening roller and slewing rollers.
Preferably, described barrier film adopts one or more mixing in PP, PE, PP/PE/PP barrier film and ceramic-coated separator, non-woven fabrics barrier film.
Preferably, the positive electrode of institute's battery anode slice adopts one or more mixing in iron phosphate lithium positive pole, tertiary cathode, lithium cobaltate cathode, NCA positive pole and LiMn2O4 positive pole.
Preferably, the negative material of described battery cathode sheet adopts one or more mixing in Delanium, native graphite, MCMB, soft carbon, hard carbon and lithium titanate.
From above technical scheme, the present invention is by barrier film unwinding and rewinding process, electrostatic generator device is added at diaphragm or lower section, make on barrier film with electrostatic, the positive and negative plate cut is placed in certain sequence static electrification barrier film fixed position, under the effect of electrostatic, pole piece by diaphragm adsorption, will fit tightly.The present invention effect by electrostatic, fixes the position of barrier film Yu pole piece, it is possible to achieve the making of takeup type laminated batteries.Solving current laminated batteries and adopt the problem of zigzag structure fabrication inefficiency, meanwhile, takeup type laminated batteries is more stable than the structure of zigzag laminated batteries, and pole piece relative position is not susceptible to External Force Acting and changes.
Accompanying drawing explanation
Fig. 1 is the systematic schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the systematic schematic diagram of the embodiment of the present invention 2.
In figure: 1, blowing end, 2, guide roller, 21, tightening roller, 22, slewing rollers, 3, backing plate, 4, volume pin, 5, electrostatic generator, 6, barrier film, 7, battery anode slice, 8, battery cathode sheet.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of preferred implementation of the present invention is described in detail.
The device realizing this inventive method includes for being sequentially transmitted the blowing end 1 of barrier film, guide roller 2, backing plate 3 and volume pin 4, and for producing the electrostatic generator 5 of electrostatic, the both positive and negative polarity of described electrostatic generator 5 can be arranged on the homonymy of barrier film, the both sides of barrier film can also be separately positioned on, battery anode slice 7 and battery cathode sheet 8 are by setting in the barrier film being subsequently placed at backing plate 3 above, and described guide roller 2 includes tightening roller 21 and the two distinct types of roller of slewing rollers 22.
Embodiment 1:
As shown in Figure 1, by the barrier film 6 of lithium ion battery by blowing end 1 even running, using the slewing rollers 22 negative or positive electrode ground connection as electrostatic generator 5, electrostatic rod is made in another pole of electrostatic generator, it is placed on the top of slewing rollers 22, open electrostatic generator, plus or minus ion is produced by electrostatic rod, make barrier film charged, charged membrane is steadily run backward, adopting mechanical hand that battery anode slice 7 and battery cathode sheet 8 be placed on charged membrane fixed position, barrier film and pole piece are by together with Electrostatic Absorption fits tightly, and barrier film and pole piece wind continuously in follow-up realization.
Embodiment 2:
As shown in Figure 2, by the barrier film 6 of lithium ion battery by blowing end 1 even running, the two poles of the earth of electrostatic generator 5 are placed on by electrostatic rod the diaphragm of backing plate 3 position, a wherein pole ground connection, open electrostatic generator, plus or minus ion is produced by electrostatic rod, make barrier film charged, charged membrane is steadily run backward, battery anode slice 7 and battery cathode sheet 8 are placed on charged membrane fixed position by mechanical hand, barrier film and pole piece are by together with Electrostatic Absorption fits tightly, and barrier film and pole piece wind continuously in follow-up realization.
The above embodiment is only that the preferred embodiment of the present invention is described; not the scope of the present invention is defined; under the premise designing spirit without departing from the present invention; various deformation that technical scheme is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that claims of the present invention are determined.
Claims (6)
1. one kind makes mode separation strapping electrostatic the method making diaphragm adsorption on pole piece, the device realizing the method includes for being sequentially transmitted the blowing end (1) of barrier film (6), guide roller (2), backing plate (3) and volume pin (4), and for producing the electrostatic generator (5) of electrostatic, it is characterized in that, described method comprises the steps:
1) barrier film for lithium ion battery is placed on even running on blowing end, guide roller, backing plate and volume pin；
2) electrostatic generator is opened by barrier film produces electrostatic；
3) battery anode slice and battery cathode sheet are subsequently placed at the fixed position of static electrification barrier film by setting；
4) pole piece is adsorbed on barrier film under the effect of barrier film electrostatic, and barrier film is wound into core with battery anode slice and battery cathode sheet by volume pin.
2. method according to claim 1, it is characterised in that the both positive and negative polarity of described electrostatic generator (5) is arranged on the homonymy of barrier film (6), or is separately positioned on the both sides of barrier film (6).
3. method according to claim 1, it is characterised in that described guide roller (2) includes tightening roller (21) and slewing rollers (22).
4. method according to claim 1, it is characterised in that described barrier film (6) adopts one or more mixing in PP, PE, PP/PE/PP barrier film and ceramic-coated separator, non-woven fabrics barrier film.
5. method according to claim 1, it is characterised in that the positive electrode of described battery anode slice adopts one or more mixing in iron phosphate lithium positive pole, tertiary cathode, lithium cobaltate cathode, NCA positive pole and LiMn2O4 positive pole.
6. method according to claim 1, it is characterised in that the negative material of described battery cathode sheet adopts one or more mixing in Delanium, native graphite, MCMB, soft carbon, hard carbon and lithium titanate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287801.XA CN105789709A (en) | 2016-05-04 | 2016-05-04 | Method for making diaphragm electrostatically charged and making diaphragm adsorbed on pole piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287801.XA CN105789709A (en) | 2016-05-04 | 2016-05-04 | Method for making diaphragm electrostatically charged and making diaphragm adsorbed on pole piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105789709A true CN105789709A (en) | 2016-07-20 |
Family
ID=56400512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610287801.XA Pending CN105789709A (en) | 2016-05-04 | 2016-05-04 | Method for making diaphragm electrostatically charged and making diaphragm adsorbed on pole piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105789709A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887652A (en) * | 2017-10-19 | 2018-04-06 | 江西恒动新能源有限公司 | The method that lithium ion battery coating lamination Electrostatic Absorption pole piece antistatic punctures barrier film |
| CN111114084A (en) * | 2020-02-17 | 2020-05-08 | 公安部第一研究所 | Rapid bonding method for multilayer thin film material |
| CN114243024A (en) * | 2021-11-17 | 2022-03-25 | 喆烯新材(北京)科技有限公司 | Preparation method and preparation equipment of graphene roughened current collector |
| CN114873329A (en) * | 2022-04-29 | 2022-08-09 | 苏州捷力新能源材料有限公司 | Method and device for winding ultraviolet-curing high-heat-resistance diaphragm |
| CN114937819A (en) * | 2022-04-26 | 2022-08-23 | 上海兰钧新能源科技有限公司 | Lithium ion battery pole piece preparation device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202219608U (en) * | 2011-08-24 | 2012-05-16 | 深圳市格林晟科技有限公司 | Device for fixing pole piece of lithium ion battery on diaphragm temporally |
| CN102956922A (en) * | 2011-08-30 | 2013-03-06 | 深圳市吉阳自动化科技有限公司 | Combining method of lithium battery pole piece and diaphragm |
| CN203690427U (en) * | 2013-11-28 | 2014-07-02 | 深圳市赢合科技股份有限公司 | Bag making and laminating integrated device |
| CN105119009A (en) * | 2015-08-18 | 2015-12-02 | 深圳吉阳智云科技有限公司 | Battery core cladding manufacturing method |
| CN105210228A (en) * | 2013-05-21 | 2015-12-30 | 日机装株式会社 | Lamination device and lamination method |
-
2016
- 2016-05-04 CN CN201610287801.XA patent/CN105789709A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202219608U (en) * | 2011-08-24 | 2012-05-16 | 深圳市格林晟科技有限公司 | Device for fixing pole piece of lithium ion battery on diaphragm temporally |
| CN102956922A (en) * | 2011-08-30 | 2013-03-06 | 深圳市吉阳自动化科技有限公司 | Combining method of lithium battery pole piece and diaphragm |
| CN105210228A (en) * | 2013-05-21 | 2015-12-30 | 日机装株式会社 | Lamination device and lamination method |
| CN203690427U (en) * | 2013-11-28 | 2014-07-02 | 深圳市赢合科技股份有限公司 | Bag making and laminating integrated device |
| CN105119009A (en) * | 2015-08-18 | 2015-12-02 | 深圳吉阳智云科技有限公司 | Battery core cladding manufacturing method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887652A (en) * | 2017-10-19 | 2018-04-06 | 江西恒动新能源有限公司 | The method that lithium ion battery coating lamination Electrostatic Absorption pole piece antistatic punctures barrier film |
| CN111114084A (en) * | 2020-02-17 | 2020-05-08 | 公安部第一研究所 | Rapid bonding method for multilayer thin film material |
| CN114243024A (en) * | 2021-11-17 | 2022-03-25 | 喆烯新材(北京)科技有限公司 | Preparation method and preparation equipment of graphene roughened current collector |
| CN114243024B (en) * | 2021-11-17 | 2023-09-05 | 荣烯新材(北京)科技有限公司 | Preparation method and preparation equipment of graphene roughened current collector |
| CN114937819A (en) * | 2022-04-26 | 2022-08-23 | 上海兰钧新能源科技有限公司 | Lithium ion battery pole piece preparation device and method |
| CN114873329A (en) * | 2022-04-29 | 2022-08-09 | 苏州捷力新能源材料有限公司 | Method and device for winding ultraviolet-curing high-heat-resistance diaphragm |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |
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| RJ01 | Rejection of invention patent application after publication |