CN106935791A - A kind of electrolyte filling method of flexible-packed battery - Google Patents
A kind of electrolyte filling method of flexible-packed battery Download PDFInfo
- Publication number
- CN106935791A CN106935791A CN201710069695.2A CN201710069695A CN106935791A CN 106935791 A CN106935791 A CN 106935791A CN 201710069695 A CN201710069695 A CN 201710069695A CN 106935791 A CN106935791 A CN 106935791A
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- China
- Prior art keywords
- core
- shell
- flexible
- electrolyte
- packed battery
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Classifications
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- 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
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention belongs to flexible-packed battery technical field, more particularly to a kind of electrolyte filling method of flexible-packed battery, flexible-packed battery includes shell, the core being arranged in shell and the top for being arranged at shell and the anode ear and negative electrode lug that are connected with core, core includes positive plate, barrier film and negative plate, and method is at least comprised the following steps：After core is placed in shell, electrolyte is injected by liquid injection pipe from the open area for being more beneficial for the quick Electolyte-absorptive of core.Relative to the injection phase that prior art, the present invention pass through rational selection electrolyte so that electrolyte is injected into core from the open area for being more beneficial for the quick Electolyte-absorptive of core, can at least reach following technique effect：First, identical effect of impregnation is also can reach in the case where the injection rate of electrolyte is reduced, save Material Cost；Second, shorten the time of repose after fluid injection, improve efficiency；3rd, the interface between pole piece and barrier film is improved.
Description
Technical field
The invention belongs to flexible-packed battery technical field, more particularly to a kind of electrolyte filling method of flexible-packed battery.
Background technology
The battery of current flexible packing lithium ion battery mainly uses takeup type structure, and usual lug stretches out direction with winding
Direction is vertical, encapsulates by the way of upper and lower doubling aluminum plastic film, during fluid injection by the way of single tube middle side edge.This core knot
The advantage of structure and its corresponding encapsulation and fluid injection mode is process is simple, is easy to mass automatic production.But, if production
Thickness is thicker, compacted density is larger or the larger battery core of pole piece width, because the difficulty that electrolyte infiltrates pole piece and barrier film adds
Greatly, it is necessary to inject further amounts of electrolyte, and the time of repose extension after fluid injection, cause the waste of material and time cost.I.e.
Just in this way, sometimes core can not be infiltrated by electrolyte completely, the non-wetted area of electrolyte can not effectively discharge and recharge, lead
The performance for sending a telegraph core goes wrong, and more likely causes potential safety hazard.
In view of this, it is necessory to provide a kind of electrolyte filling method of flexible-packed battery, it is reducing the injection rate of electrolyte
In the case of remain able to reach identical effect of impregnation, such that it is able to save Material Cost, and after fluid injection being shortened
Time of repose, improves efficiency, while enabling to the interface between pole piece and barrier film to be improved.
The content of the invention
It is an object of the invention to：In view of the shortcomings of the prior art, a kind of electrolyte filling method of flexible-packed battery is provided, its
Remain able to reach identical effect of impregnation in the case where the injection rate of electrolyte is reduced, such that it is able to save Material Cost,
And the time of repose after fluid injection can be shortened, efficiency is improved, while enabling to the interface between pole piece and barrier film to obtain
Improve.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of electrolyte filling method of flexible-packed battery, the flexible-packed battery includes shell, the volume being arranged in the shell
Core and the top of the shell and the anode ear and negative electrode lug that are connected with the core are arranged at, the core includes positive pole
Piece, barrier film and negative plate, methods described are at least comprised the following steps：After core is placed in the shell, electrolyte is passed through
Liquid injection pipe injects from the open area for being more beneficial for the quick Electolyte-absorptive of core.
Improved as a kind of the of electrolyte filling method of flexible-packed battery of the present invention, the open area exceeds for the width of barrier film
The region of positive pole and negative pole, and the injection direction of electrolyte and the coiling direction of core are vertical.
Improved as a kind of the of electrolyte filling method of flexible-packed battery of the present invention, when the lug of core stretches out direction with core
When coiling direction is vertical, the doubling mode of the shell is upper and lower doubling, and the open area is located at the side of the core, institute
Liquid injection pipe is stated for two, and two liquid injection pipes are respectively positioned at the top and bottom of the side of the core.
Improved as a kind of the of electrolyte filling method of flexible-packed battery of the present invention, when the lug of core stretches out direction with core
When coiling direction is vertical, the doubling mode of the shell is upper and lower doubling, and the open area is located at the side of the core, and
And the liquid injection pipe is located at the middle section of the side of the core.
Improved as a kind of the of electrolyte filling method of flexible-packed battery of the present invention, when the lug of core stretches out direction with core
When coiling direction is vertical, the doubling mode of the shell is left and right doubling, and the open area is located at the bottom of the core, institute
State middle section of the liquid injection pipe positioned at the bottom of the core.
Improved as a kind of the of electrolyte filling method of flexible-packed battery of the present invention, when the lug of core stretches out direction with core
When coiling direction is consistent, the doubling mode of the shell is left and right doubling, and the open area is located at the side of the core, and
And the liquid injection pipe is located at the middle section of the side of the core.
Improved as a kind of the of electrolyte filling method of flexible-packed battery of the present invention, after the completion of fluid injection, liquid injection pipe is removed, to shell
Open area be packaged operation.
Relative to prior art, the injection phase that the present invention passes through rational selection electrolyte so that electrolyte is from more having
Open area beneficial to the quick Electolyte-absorptive of core is injected into core, can at least reach following technique effect：
First, identical effect of impregnation is also can reach in the case where the injection rate of electrolyte is reduced, save Material Cost；
Second, shorten the time of repose after fluid injection, improve efficiency；
3rd, the interface between pole piece and barrier film is improved.
Brief description of the drawings
With reference to specification drawings and specific embodiments, the present invention and its Advantageous Effects are carried out specifically
It is bright, wherein：
Fig. 1 is the battery structure schematic diagram in Example 1 and Example 2 of the present invention.
Fig. 2 is the battery structure schematic diagram in the embodiment of the present invention 1 during fluid injection.
Fig. 3 is the battery structure schematic diagram in the embodiment of the present invention 2 during fluid injection.
Fig. 4 is the battery structure schematic diagram in the embodiment of the present invention 3.
Fig. 5 is the battery structure schematic diagram in the embodiment of the present invention 3 during fluid injection.
Specific embodiment
With reference to embodiment and Figure of description, the present invention is described in further detail, but implementation of the invention
Mode not limited to this.
Embodiment 1
As depicted in figs. 1 and 2, a kind of electrolyte filling method of flexible-packed battery is present embodiments provided, flexible-packed battery includes
Shell 1, the core 2 being arranged in shell 1 and the top for being arranged at shell 1 and the anode ear 3 and negative electrode lug that are connected with core 2
4, core 2 includes positive plate, barrier film and negative plate, and the method is at least comprised the following steps：After core 2 is placed in shell 1, will
Electrolyte is injected by liquid injection pipe 5 from the open area 6 for being more beneficial for the quick Electolyte-absorptive of core.
Open area 6 is the width of barrier film beyond the region of positive pole and negative pole, and electrolyte injection direction and core 2
Coiling direction it is vertical.
In the present embodiment, the lug of core 2 stretches out that direction is vertical with the coiling direction of core 2, and the doubling mode of shell 1 is
Upper and lower doubling, open area 6 is located at the side of core 2, and liquid injection pipe 5 is two, and two liquid injection pipes 5 are located at core 2 respectively
Side top and bottom.
After the completion of fluid injection, liquid injection pipe is removed, the open area to shell is packaged operation.
In this way, even production thickness is thicker, the battery core that compacted density is larger or pole piece width is larger, electrolysis
Liquid also can quickly infiltrate pole piece and barrier film, and the electrolyte for needing is less, and time of repose after fluid injection is shorter, infiltration
Fully, it is ensured that battery core performance gives full play to.
Embodiment 2
As shown in figures 1 and 3, a kind of electrolyte filling method of flexible-packed battery is present embodiments provided, flexible-packed battery includes
Shell 1, the core 2 being arranged in shell 1 and the top for being arranged at shell 1 and the anode ear 3 and negative electrode lug that are connected with core 2
4, core 2 includes positive plate, barrier film and negative plate, and the method is at least comprised the following steps：After core 2 is placed in shell 1, will
Electrolyte is injected by liquid injection pipe 5 from the open area 6 for being more beneficial for the quick Electolyte-absorptive of core.
Open area 6 is the width of barrier film beyond the region of positive pole and negative pole, and electrolyte injection direction and core 2
Coiling direction it is vertical.
In the present embodiment, the lug of core 2 stretch out direction it is vertical with the coiling direction of core 2 when, the doubling mode of shell 1
It is left and right doubling, open area 6 is located at the bottom of core 2, and liquid injection pipe 5 is located at the middle section of the bottom of core 2.
After the completion of fluid injection, liquid injection pipe 5 is removed, the open area to shell is packaged operation.
In this way, even production thickness is thicker, the battery core that compacted density is larger or pole piece width is larger, electrolysis
Liquid also can quickly infiltrate pole piece and barrier film, and the electrolyte for needing is less, and time of repose after fluid injection is shorter, infiltration
Fully, it is ensured that battery core performance gives full play to.
Embodiment 3
As shown in Figure 4 and Figure 5, a kind of electrolyte filling method of flexible-packed battery is present embodiments provided, flexible-packed battery includes
Shell 1, the core 2 being arranged in shell 1 and the top for being arranged at shell 1 and the anode ear 3 and negative electrode lug that are connected with core 2
4, core 2 includes positive plate, barrier film and negative plate, and the method is at least comprised the following steps：After core 2 is placed in shell 1, will
Electrolyte is injected by liquid injection pipe 5 from the open area 6 for being more beneficial for the quick Electolyte-absorptive of core.
Open area 6 is the width of barrier film beyond the region of positive pole and negative pole, and electrolyte injection direction and core 2
Coiling direction it is vertical.
In the present embodiment, the lug of core 2 stretch out direction it is consistent with the coiling direction of core 2 when, the doubling mode of shell 1
It is left and right doubling, open area 6 is located at the side of core 2, and liquid injection pipe 5 is located at the middle section of the side of core 2.
After the completion of fluid injection, liquid injection pipe 5 is removed, the open area to shell is packaged operation.
In this way, even production thickness is thicker, the battery core that compacted density is larger or pole piece width is larger, electrolysis
Liquid also can quickly infiltrate pole piece and barrier film, and the electrolyte for needing is less, and time of repose after fluid injection is shorter, infiltration
Fully, it is ensured that battery core performance gives full play to.
Certainly, in embodiment 1, liquid injection pipe 5 can also only one of which, and the liquid injection pipe 5 be located at core 2 side in
Centre region.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and changed.Therefore, the invention is not limited in specific embodiment disclosed and described above, to of the invention
Some modifications and changes should also be as falling into scope of the claims of the invention.Although additionally, being used in this specification
Some specific terms, but these terms are merely for convenience of description, do not constitute any limitation to the present invention.
Claims (7)
1. a kind of electrolyte filling method of flexible-packed battery, the flexible-packed battery includes shell, the core being arranged in the shell
And be arranged at the top of the shell and the anode ear and negative electrode lug that are connected with the core, the core include positive plate,
Barrier film and negative plate, it is characterised in that methods described is at least comprised the following steps：After core is placed in the shell, by electricity
Solution liquid is injected by liquid injection pipe from the open area for being more beneficial for the quick Electolyte-absorptive of core.
2. the electrolyte filling method of flexible-packed battery according to claim 1, it is characterised in that：The open area is barrier film
Width is beyond positive pole and the region of negative pole, and the injection direction of electrolyte and the coiling direction of core are vertical.
3. the electrolyte filling method of flexible-packed battery according to claim 1, it is characterised in that：When the lug of core stretches out direction
When coiling direction with core is vertical, the doubling mode of the shell is upper and lower doubling, and the open area is located at the core
Side, the liquid injection pipe is two, and two liquid injection pipes are located at the top and bottom of the side of the core.
4. the electrolyte filling method of flexible-packed battery according to claim 1, it is characterised in that：When the lug of core stretches out direction
When coiling direction with core is vertical, the doubling mode of the shell is upper and lower doubling, and the open area is located at the core
Side, and the liquid injection pipe respectively positioned at the core side middle section.
5. the electrolyte filling method of flexible-packed battery according to claim 1, it is characterised in that：When the lug of core stretches out direction
When coiling direction with core is vertical, the doubling mode of the shell is left and right doubling, and the open area is located at the core
Bottom, the liquid injection pipe be located at the core bottom middle section.
6. the electrolyte filling method of flexible-packed battery according to claim 1, it is characterised in that：When the lug of core stretches out direction
When coiling direction with core is consistent, the doubling mode of the shell is left and right doubling, and the open area is located at the core
Side, and the liquid injection pipe be located at the core side middle section.
7. the electrolyte filling method of flexible-packed battery according to claim 1, it is characterised in that：After the completion of fluid injection, fluid injection is removed
Pipe, the open area to shell is packaged operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710069695.2A CN106935791A (en) | 2017-02-08 | 2017-02-08 | A kind of electrolyte filling method of flexible-packed battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710069695.2A CN106935791A (en) | 2017-02-08 | 2017-02-08 | A kind of electrolyte filling method of flexible-packed battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106935791A true CN106935791A (en) | 2017-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710069695.2A Pending CN106935791A (en) | 2017-02-08 | 2017-02-08 | A kind of electrolyte filling method of flexible-packed battery |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361010A (en) * | 2018-12-08 | 2019-02-19 | 广东维都利新能源有限公司 | A kind of discoid poly-lithium battery of takeup type and preparation method thereof |
| CN112310529A (en) * | 2020-10-27 | 2021-02-02 | 合肥国轩高科动力能源有限公司 | Lithium ion battery |
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| CN102306712A (en) * | 2011-08-31 | 2012-01-04 | 华为技术有限公司 | Cylinder battery |
| CN102394285A (en) * | 2011-11-11 | 2012-03-28 | 东莞市鸿宝锂电科技有限公司 | Power battery liquid-injection sealing machine |
| CN202352786U (en) * | 2011-12-12 | 2012-07-25 | 深圳市格瑞普电池有限公司 | Wound battery core body, soft package lithium ion battery and plate |
| CN103762387A (en) * | 2014-01-24 | 2014-04-30 | 东莞锂威能源科技有限公司 | Method for preparing coiled polymer lithium battery and coiled polymer lithium battery |
| CN104332646A (en) * | 2014-10-17 | 2015-02-04 | 金川集团股份有限公司 | Plastic-aluminum film packed cylindrical lithium ion battery and making method thereof |
| US20160380302A1 (en) * | 2015-06-26 | 2016-12-29 | Samsung Sdi Co., Ltd. | Curved secondary battery and manufacturing method thereof |
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2017
- 2017-02-08 CN CN201710069695.2A patent/CN106935791A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306712A (en) * | 2011-08-31 | 2012-01-04 | 华为技术有限公司 | Cylinder battery |
| CN102394285A (en) * | 2011-11-11 | 2012-03-28 | 东莞市鸿宝锂电科技有限公司 | Power battery liquid-injection sealing machine |
| CN202352786U (en) * | 2011-12-12 | 2012-07-25 | 深圳市格瑞普电池有限公司 | Wound battery core body, soft package lithium ion battery and plate |
| CN103762387A (en) * | 2014-01-24 | 2014-04-30 | 东莞锂威能源科技有限公司 | Method for preparing coiled polymer lithium battery and coiled polymer lithium battery |
| CN104332646A (en) * | 2014-10-17 | 2015-02-04 | 金川集团股份有限公司 | Plastic-aluminum film packed cylindrical lithium ion battery and making method thereof |
| US20160380302A1 (en) * | 2015-06-26 | 2016-12-29 | Samsung Sdi Co., Ltd. | Curved secondary battery and manufacturing method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361010A (en) * | 2018-12-08 | 2019-02-19 | 广东维都利新能源有限公司 | A kind of discoid poly-lithium battery of takeup type and preparation method thereof |
| CN112310529A (en) * | 2020-10-27 | 2021-02-02 | 合肥国轩高科动力能源有限公司 | Lithium ion battery |
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Application publication date: 20170707 |