CN102653656A - Method for improving hardness and toughness of flexibly-packaged battery - Google Patents
Method for improving hardness and toughness of flexibly-packaged battery Download PDFInfo
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- CN102653656A CN102653656A CN2012101156639A CN201210115663A CN102653656A CN 102653656 A CN102653656 A CN 102653656A CN 2012101156639 A CN2012101156639 A CN 2012101156639A CN 201210115663 A CN201210115663 A CN 201210115663A CN 102653656 A CN102653656 A CN 102653656A
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- resin
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses and provides a method capable of improving wrinkle-resistant capability of an ultrathin battery greatly. The method provided by the invention comprises the following steps: taking an alcohol or ketone matter as a solvent, adding one kind or multiple kinds of alcohol soluble or ketone soluble resin slowly into the solvent according to certain proportion at the normal temperature under the condition of high-speed stirring, wherein stirring times lasts for 15-60 minutes; adding a defoaming agent and a flatting agent to the mixed solution and stirring uniformly; adding alcohol or ketone solvent continuously so as to adjust the viscosity of the mixed solution, and stirring for 10-60 minutes, thus obtaining a resin solution; uniformly spraying the obtained resin solution between an ultrathin battery electrode plate and an aluminum plastic film by a spraying gun; and standing the ultrathin battery processed by the above steps at the normal temperature or standing and drying in an anaerobic sealed vacuum box at a high temperature, wherein the drying time depends on the thickness of the sprayed resin. The method capable of improving wrinkle-resistant capability of the ultrathin battery greatly provided by the invention can be widely applied to the field of manufacturing technology of lithium batteries.
Description
Technical field
The present invention relates to a kind of hardness and flexible method that improves soft-package battery.
Background technology
The Soft Roll lithium ion battery is compared with metal casing or electric battery with plastic case, and the Soft Roll lithium ion battery security can be good, thin thickness, flexible design, cost are lower, thereby it receives the favor of users at home and abroad.Cause battery yielding but Soft Roll lithium ion battery outsourcing aluminum plastic film hardness is too poor, be prone to bad orders such as concave point, fold, cut, and aluminum plastic film is damaged easily.Particularly in the power technology field, aluminum plastic film hardness and toughness are not enough, are unable to undergo long-term vibration and bump and have limited the development of Soft Roll lithium ion battery in this field.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that overcomes prior art, and a kind of hardness and flexible method that can significantly improve soft-package battery is provided.
The technical scheme that the present invention adopted is: the present invention is a kind of hardness and flexible method that improves soft-package battery, and this method may further comprise the steps:
(1) solution preparation: with alcohols as solvent, under the normal temperature state with alcoholic solvent high-speed stirring 1～5min; By a certain percentage spirit-soluble resin is slowly added in the alcoholic solvent, stirring 10～30min (minute); In solution, add skimmer and flow agent; Continue to add alcoholic solvent and spray, stir 10～60min then and promptly obtain resin solution with adjustment soltion viscosity to available spray gun;
(2) solution spraying: the resin solution that makes in the step (1) evenly is sprayed on the soft-package battery surface with spray gun; Leave standstill under the normal temperature state or under vacuum state high bake leave standstill to solution dryly, its dry time of repose is decided according to the sample path length of spraying.
In said step (1), said alcoholic solvent is methyl alcohol, ethanol, terepthaloyl moietie, propyl alcohol, Virahol, Ucar 35, propyl carbinol, isopropylcarbinol, 1,4-butyleneglycol or hexanol.
In said step (1), said spirit-soluble resin is novolac resin, rosin modified alkyd resin, urea-formaldehyde resin, polyvinyl butyral acetal or pure dissolubility WL 140.
In said step (1), said spirit-soluble resin is novolac resin, rosin modified alkyd resin, urea-formaldehyde resin, polyvinyl butyral acetal or pure dissolubility WL 140.
In said step (2), the TR of said normal temperature state is 20～30 ℃.
In said step (2), said high temperature range is 80～100 ℃.
Preferably, in said step (2), said normal temperature temperature value is 25 ℃.
Preferably, in said step (2), said high-temperature temperature value is 85 ℃.
The invention has the beneficial effects as follows: since the present invention with alcohols as solvent; In solvent, add resin; And mix, be sprayed on then on the outside surface of soft-package battery, so; The soft-package battery that utilization the inventive method makes is compared with present Soft Roll lithium ion battery on the market, and the soft-package battery hardness of surface spraying resin is higher, toughness is better; The resin that the present invention sprays on the soft-package battery surface is the thinnest to reach 20 microns; Basically do not increase the thickness of battery; The present invention compares with existing Soft Roll lithium ion battery; Bad orders such as cut, fold, concave point appear in its surface that prevents of the Soft Roll lithium ion battery of spraying resin; In addition, the inventive method can improve the ability of battery anti-vibration, bump, shows higher safety performance.
Embodiment
The present invention is a kind of hardness and flexible method that improves soft-package battery, and this method may further comprise the steps:
(1) solution preparation: with alcohols as solvent, under the normal temperature state with alcoholic solvent high-speed stirring 1～5min; By a certain percentage spirit-soluble resin is slowly added in the alcoholic solvent, stirring 10～30min (minute); In solution, add skimmer and flow agent; Continue to add alcoholic solvent with the adjustment soltion viscosity to available spray gun spraying, stir then 10～60min (minute) promptly obtain resin solution;
(2) solution spraying: the resin solution that makes in the step (1) evenly is sprayed on the soft-package battery surface with spray gun; Leave standstill under the normal temperature state or under vacuum state high bake leave standstill to solution dryly, its dry time of repose is decided according to the sample path length of spraying.
With three specific embodiments the inventive method is further described below.
Embodiment one:
Pour 400 gram methyl alcohol into stirred pot and stir, the stirrer rotating speed is transferred to 1000rpm, churning time is 4min; Slowly add the pure dissolubility WL 140 of 110 grams, stirring 15min (minute); In solution, add 1 gram skimmer and 1.5 gram flow agents; Continue to add methyl alcohol then and be diluted to solution and can spray, can get desired resin solution behind the restir 30min with spray gun.
The resin solution for preparing is sprayed on the Soft Roll lithium ion battery surface with spray gun; With the Soft Roll lithium ion battery 85 ℃ of vacuum bakeouts in the baking oven after 4 hours resin do solid work; Measuring thickness is 20 μ m, presses its pencil hardness of GB/T 6739-1996 test, and the result is H.
Embodiment two:
With 900 gram ethanol and 100 gram mixed with propylene glycol, get 400 gram mixing solutionss and on the speed change stirrer, stir, rotating speed is transferred to 1200rpm, stir 3min; Slowly add 80 gram rosin modified alkyd resins, stir 35min; In solution, add 1.3 gram skimmers and 2.0 gram flow agents; The mixing solutions that continues interpolation ethanol and Ucar 35 then is diluted to available spray gun spraying, can get desired resin solution behind the restir 20min.
The resin solution for preparing is sprayed on the soft-package battery surface with spray gun; With lithium ion battery 85 ℃ of vacuum bakeouts in the baking oven after 4 hours resin do solid work.Measuring thickness is 50 μ m, presses its pencil hardness of GB/T 6739-1996 test, and the result is 2H.
Embodiment three:
Pour 400 gram ethanol into stirred pot and stir, the stirrer rotating speed is transferred to 860rpm, stir 5min; Slowly add the pure dissolubility WL 140 of 90 grams, stir 15min; In solution, add 1.2 gram skimmers and 2.0 gram flow agents; Continuing to add alcohol dilution to solution then can spray with spray gun, can get desired resin solution behind the restir 45min.
The resin solution for preparing is sprayed on the Soft Roll lithium ion battery surface with spray gun; With lithium ion battery 85 ℃ of vacuum bakeouts in the baking oven after 4 hours resin do solid work; Measuring thickness is 23 μ m, presses its pencil hardness of GB/T 6739-1996 test, and the result is H.
The present invention can be widely used in the ME field of lithium cell.
Claims (7)
1. a hardness and flexible method that improves soft-package battery is characterized in that this method may further comprise the steps:
(1) solution preparation: with alcohols as solvent, under the normal temperature state with alcoholic solvent high-speed stirring 1～5min; By a certain percentage spirit-soluble resin is slowly added in the alcoholic solvent, stir 10～30min; In solution, add skimmer and flow agent; Continue to add alcoholic solvent and spray, stir 10～60min then and promptly obtain resin solution with adjustment soltion viscosity to available spray gun;
(2) solution spraying: the resin solution that makes in the step (1) evenly is sprayed on the soft-package battery surface with spray gun; Leave standstill under the normal temperature state or under vacuum state high bake leave standstill to solution dryly, its dry time of repose is decided according to the sample path length of spraying.
2. a kind of hardness and flexible method that improves soft-package battery according to claim 1; It is characterized in that: in said step (1); Said alcoholic solvent is methyl alcohol, ethanol, terepthaloyl moietie, propyl alcohol, Virahol, Ucar 35, propyl carbinol, isopropylcarbinol, 1,4-butyleneglycol or hexanol.
3. a kind of hardness and flexible method that improves soft-package battery according to claim 1; It is characterized in that: in said step (1), said spirit-soluble resin is novolac resin, rosin modified alkyd resin, urea-formaldehyde resin, polyvinyl butyral acetal or pure dissolubility WL 140.
4. a kind of hardness and flexible method that improves soft-package battery according to claim 1, it is characterized in that: in said step (2), the TR of said normal temperature state is 20～30 ℃.
5. a kind of hardness and flexible method that improves soft-package battery according to claim 1, it is characterized in that: in said step (2), said high temperature range is 80～100 ℃.
6. a kind of hardness and flexible method that improves soft-package battery according to claim 4, it is characterized in that: said normal temperature temperature value is 25 ℃.
7. a kind of hardness and flexible method that improves soft-package battery according to claim 5, it is characterized in that: said high-temperature temperature value is 85 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101156639A CN102653656A (en) | 2012-04-19 | 2012-04-19 | Method for improving hardness and toughness of flexibly-packaged battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101156639A CN102653656A (en) | 2012-04-19 | 2012-04-19 | Method for improving hardness and toughness of flexibly-packaged battery |
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| CN102653656A true CN102653656A (en) | 2012-09-05 |
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| CN2012101156639A Pending CN102653656A (en) | 2012-04-19 | 2012-04-19 | Method for improving hardness and toughness of flexibly-packaged battery |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105111903A (en) * | 2015-09-08 | 2015-12-02 | 深圳电丰电子有限公司 | Preparation method for coating film capable of enhancing hardness and toughness of soft package lithium battery |
| CN106848363A (en) * | 2015-12-05 | 2017-06-13 | 中山天贸电池有限公司 | A kind of method for improving polymer thin battery stiffness capabilities |
| CN108767284A (en) * | 2018-06-12 | 2018-11-06 | 深圳电丰电子有限公司 | A method of improving ultra-thin lithium electronics one-shot battery hardness |
| CN108948984A (en) * | 2018-06-12 | 2018-12-07 | 深圳电丰电子有限公司 | A method of improving soft package lithium battery hardness and toughness |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588671A (en) * | 2004-09-30 | 2005-03-02 | 河南环宇集团有限公司 | Method for preparing lithium iron cell protective film and solvent for cleaning said protective film |
-
2012
- 2012-04-19 CN CN2012101156639A patent/CN102653656A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588671A (en) * | 2004-09-30 | 2005-03-02 | 河南环宇集团有限公司 | Method for preparing lithium iron cell protective film and solvent for cleaning said protective film |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105111903A (en) * | 2015-09-08 | 2015-12-02 | 深圳电丰电子有限公司 | Preparation method for coating film capable of enhancing hardness and toughness of soft package lithium battery |
| CN106848363A (en) * | 2015-12-05 | 2017-06-13 | 中山天贸电池有限公司 | A kind of method for improving polymer thin battery stiffness capabilities |
| CN108767284A (en) * | 2018-06-12 | 2018-11-06 | 深圳电丰电子有限公司 | A method of improving ultra-thin lithium electronics one-shot battery hardness |
| CN108948984A (en) * | 2018-06-12 | 2018-12-07 | 深圳电丰电子有限公司 | A method of improving soft package lithium battery hardness and toughness |
| CN108767284B (en) * | 2018-06-12 | 2019-06-07 | 深圳电丰电子有限公司 | A method of improving ultra-thin lithium electronics one-shot battery hardness |
| CN108948984B (en) * | 2018-06-12 | 2020-07-07 | 深圳电丰电子有限公司 | Method for improving hardness and toughness of soft package lithium battery |
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Application publication date: 20120905 |