CN103985829B - Soft Roll arc battery seaming operation - Google Patents
Soft Roll arc battery seaming operation Download PDFInfo
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- CN103985829B CN103985829B CN201410151080.0A CN201410151080A CN103985829B CN 103985829 B CN103985829 B CN 103985829B CN 201410151080 A CN201410151080 A CN 201410151080A CN 103985829 B CN103985829 B CN 103985829B
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- Prior art keywords
- battery core
- battery
- edge sealing
- packaging film
- arc
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling 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
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses Soft Roll arc battery seaming operation, described Soft Roll arc battery is mainly made up of packaging film and the battery core that is heat-sealed in packaging film, described packaging film includes the top coat being provided with battery core fixed groove and is covered in the bottom surface layer on battery core fixed groove surface, this seaming operation comprises the following steps: battery core flanging, folding and make an edge sealing, two edge sealing to be close to bottom surface layer along the direction near described packaging film bottom surface layer an edge sealing of position, battery core two sides, two edge sealing, a described edge sealing, two edge sealing folding axis flush with the side of battery core.The present invention is according to mechanics principle, on the premise of the most additionally increasing cost, production procedure, with the easy fold method of one, effectively improves the Soft Roll long-standing leakage of arc battery core not enough.
Description
Technical field
The present invention relates to technical field of lithium batteries, particularly relate to a kind of Soft Roll arc battery seaming operation.
Background technology
Along with the raising of people's living standard, show not poor with the digital product that individual demand is derivative, as
Wrist mobile phone, wrist wrist-watch, wrist measuring cell etc..The appearance of these products, the design to lithium battery proposes
New challenge, traditionally shaped lithium battery can not fully meet the demand in market.In this case
The appearance of arc lithium battery solves this problem very well.Arc lithium battery has not only widened lithium battery applications neck
Territory, also solves some digital products and uses the technical problem of battery difficulty, promote the progress of science and technology.
Existing square soft package lithium battery mainly by battery core being loaded flexible packaging film groove, heat-sealing lug limit and
One envelope side, fills electrolyte, and carries out preliminary filling, evacuation two envelope, trimming, flanging and chemical conversion successively
Complete.In seaming operation, often an envelope, two edge sealing of position, battery core two sides are turned up along battery core side,
Battery core one envelope, two edge sealing are made to be close to battery core side.This flanging mode is due to simple and practical, the most square
Popularity is obtained Deng in tradition soft-package battery, but inapplicable arc battery.Arc battery is at seaming operation
After, need to be processed into certain radian by external force by being originally used for square battery, when arc technique processed, due to
Battery core one envelope, two edge sealing are close to the side of battery core and are turned up so that the pulling force of bending acts on the battery core heat holded up
On edge sealing, cause hot edge seal deformation and impaired, ultimately cause leakage.
In view of the above problems, a lot of lithium battery manufacturing enterprises are limited to technical bottleneck, dare not set foot in Soft Roll arc
Field of batteries.And the manufacturer coming into Soft Roll arc field of batteries improves leakage at present and concentrates the side used
Method is to improve the sealing of hot edge seal, such as, coat the binding agent of more high-quality or improve heat seal condition (heat-sealing
Temperature and flow process) etc..Although this type of technological means can reduce leakage rate to a certain extent, but leakage
Rate is the most substantially improved, and input cost is high.Therefore, a kind of Soft Roll arc of research and development it is badly in need of
Shape battery seaming operation, on the premise of the most additionally increasing cost, inherently improves arc battery leakage and asks
Topic.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency of the prior art, it is provided that a kind of Soft Roll arc battery flanging
Technique, improves battery core leakage problem by process simple, low cost.
Inventor, by studying discovery for a long period of time, causes having its source in of Soft Roll arc battery leakage, processes battery
The force direction of radian is identical with battery core hot edge seal direction, and battery core hot edge seal is stressed directly, the most impaired leakage.
Therefore inventor is based on changing flanging direction so that battery core hot edge seal avoids the design of force direction, it is proposed that this
Bright.
It is an object of the invention to be achieved through the following technical solutions:
Soft Roll arc battery seaming operation, described Soft Roll arc battery is mainly by packaging film and be heat-sealed in packaging
Battery core composition in film, described packaging film includes being provided with the top coat of battery core fixed groove and being covered in electricity
The bottom surface layer on core fixed groove surface, this seaming operation comprises the following steps:
Battery core flanging, by an edge sealing of position, battery core two sides, two edge sealing along near described packaging film bottom surface layer
Direction fold and make an edge sealing, two edge sealing to be close to bottom surface layer, a described edge sealing, two edge sealing folding axis
Flush with the side of battery core.
In technique scheme, by an edge sealing, two edge sealing are folded and are close to battery core bottom surface layer, battery core arc
Although the external force partial action that technique produces is in battery core one edge sealing, two edge sealing, but owing to an envelope, two edge sealing do not have
There is impaired (because an edge sealing, two edge sealing are on the arcwall face of same Radius), therefore there is not leakage.The present invention
The flanging mode proposed, also makes arc operation processed have more selection in wrap direction.Specifically, adopt
By the flanging mode of the present invention, no matter battery is along being arc near the direction bending of packaging film top coat, goes back
It is along being arc near the direction bending of packaging film bottom surface layer, produces leakage all without making battery core one edge sealing, two edge sealing
The potential safety hazard of liquid.
Further, before carrying out described battery core flanging, following PROCESS FOR TREATMENT need to be carried out:
Packaging film shapes, and shapes packaging film according to battery core size, and the one side at packaging film shapes battery core anchor
Groove；
Lug limit and edge sealing heat-sealing, be fixed on battery core in battery core fixed groove, utilize heat sealing machine the most right
Packaging film has the limit of lug elongated end and the side of close battery core to seal；
Baking；
Fluid injection, utilizes HighPower pump to inject the electrolyte into packaging film, and is carried out away from the side of battery core by packaging film
Heat-sealing；
Preliminary filling, after completing the battery standing a period of time after fluid injection, is carried out battery by Precharged cabinet for the first time
Discharge and recharge；
Two edge sealing heat-sealings, utilize vacuum-pumping heat sealing machine to extract excessive electrolyte and gas in packaging film, then
Carry out two edge sealing heat-sealings；
Trimming, as requested size, excise unnecessary packaging film along an edge sealing, two edge sealing heat-sealing positions.
Further, after carrying out described battery core flanging, following PROCESS FOR TREATMENT need to be carried out:
Continue and fill, by formation cabinet, battery is carried out discharge and recharge, make battery core reach the electrical property of customer requirement；
Arc processed, utilizes arc battery core shaping mould shaping to continue rechargable battery.
Specifically, when carrying out described battery core flanging, have employed boiling hot limit machine.
The present invention has the following advantages and beneficial effect compared to existing technology:
1, the present invention is according to mechanics principle, on the premise of the most additionally increasing cost, production procedure, by one
Easy fold method, effectively improves the Soft Roll long-standing leakage of arc battery core not enough.
2, the fold method that the present invention proposes makes arc operation processed have more selection in wrap direction.
3, the present invention can increase an edge sealing, two edge sealing effective hot edge seal width the most flexibly, therefore enters one
Step reduces the leakage rate of Soft Roll arc battery.
Accompanying drawing explanation
Fig. 1 is arc battery structure front view of the present invention.
Fig. 2 is arc battery structure top view of the present invention.
Fig. 3 is arc battery structure left view of the present invention.
Fig. 4 is the battery of the present invention structural representation under lug limit and an edge sealing heat-sealing state.
Fig. 5 is the battery of the present invention structural representation under fluid injection state.
Fig. 6 is the battery of the present invention structural representation under two edge sealing heat-sealing states.
Fig. 7 is that the present invention is along the structural representation being arc near the direction bending of packaging film bottom surface layer.
Fig. 8 is that the present invention is along the structural representation being arc near the direction bending of packaging film top coat.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but the embodiment party of the present invention
Formula is not limited to this.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, the invention provides a kind of Soft Roll arc battery seaming operation, Soft Roll
Arc battery is mainly made up of packaging film 3 and the battery core 2 that is heat-sealed in packaging film 3, battery core 2 end
Lug 1 penetrates packaging film 3 and extends out, and packaging film 3 includes the top coat 8 being provided with battery core fixed groove
And it is covered in the bottom surface layer 9 on battery core fixed groove surface, this seaming operation comprises the following steps:
Battery core flanging, by envelope hot edge seal 31, a two envelope hot edge seal 32 of position, battery core 2 two sides along the end of near
The direction of surface layer 9 folds and makes envelope hot edge seal 31, a two envelope hot edge seal 32 to be close to bottom surface layer 9, an envelope heat
Edge sealing 31, two envelope hot edge seal 32 folding axis flushes with the side of battery core 2.
In the specific implementation, the work flow of Soft Roll arc battery of the present invention specifically includes that
Packaging film shapes, and shapes packaging film according to battery core size, and the one side at packaging film shapes battery core anchor
Groove；
Lug limit and edge sealing heat-sealing, as shown in Figure 4, be fixed on battery core 2 in battery core fixed groove, profit
Respectively packaging film is had limit 5 and a side 4(that is envelope of close battery core 2 of lug 1 elongated end with heat sealing machine
Limit) seal；
Baking；
Fluid injection, as it is shown in figure 5, utilize HighPower pump to inject the electrolyte into packaging film, and by packaging film away from electricity
The position of the side 6(of core i.e. fluid injection limit heat-sealing) seal；
Preliminary filling, after completing the battery standing a period of time after fluid injection, is carried out battery by Precharged cabinet for the first time
Discharge and recharge；
Two edge sealing heat-sealings, as shown in Figure 6, electrolyte excessive in utilizing vacuum-pumping heat sealing machine to extract packaging film
And gas, then carry out two edge sealing heat-sealings, the position 6 that the position 7 of two edge sealing heat-sealings seals relative to fluid injection limit,
Closer to battery core；
Trimming, as requested size, excise unnecessary packaging film along two edge sealing heat-sealing positions 7.
Utilize and scald limit machine one edge sealing, two edge sealing of battery core two sides are carried out flanging, make battery formed such as Fig. 1,
State shown in Fig. 2 and Fig. 3；
Continue and fill, by formation cabinet, battery is carried out recharged；
Arc processed, utilizes arc battery core shaping mould shaping to continue rechargeable battery, and battery is shaped to the arc needed
Degree.The direction of shaping both can be as shown in Figure 7 along near packaging film bottom surface layer 9 direction bending be arc,
Can also be as shown in Figure 8 along near packaging film top coat 8 direction bending be arc.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-mentioned reality
Execute the restriction of example, the change made under other any spirit without departing from the present invention and principle, modification,
Substitute, combine, simplify, all should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (2)
1. Soft Roll arc battery seaming operation, described Soft Roll arc battery is mainly by packaging film and be heat-sealed in bag
Battery core composition in dress film, described packaging film includes being provided with the top coat of battery core fixed groove and being covered in
The bottom surface layer on battery core fixed groove surface, it is characterised in that this seaming operation comprises the following steps:
Packaging film shapes, and shapes packaging film according to battery core size, and the one side at packaging film shapes battery core fixed groove；
Lug limit and edge sealing heat-sealing, be fixed on battery core in battery core fixed groove, utilize heat sealing machine respectively to bag
Dress film has the limit of lug elongated end and the side of close battery core to seal；
Baking；
Fluid injection, utilizes HighPower pump to inject the electrolyte into packaging film, and away from the side of battery core, packaging film is carried out heat
Envelope；
Preliminary filling, after completing the battery standing a period of time after fluid injection, is filled battery for the first time by Precharged cabinet
Electric discharge；
Two edge sealing heat-sealings, utilize vacuum-pumping heat sealing machine to extract excessive electrolyte and gas in packaging film, then enter
Row two edge sealing seals；
Trimming, as requested size, excise unnecessary packaging film along an edge sealing, two edge sealing heat-sealing positions；
Battery core flanging, by an edge sealing of position, battery core two sides, two edge sealing along near described packaging film bottom surface layer
Direction fold and make an edge sealing, two edge sealing to be close to bottom surface layer, a described edge sealing, two edge sealing folding axis
Flush with the side of battery core；
Continue and fill, by formation cabinet, battery is carried out discharge and recharge, make battery core reach the electrical property of customer requirement；
Arc processed, utilizes arc battery core shaping mould shaping to continue rechargable battery.
Soft Roll arc battery seaming operation the most according to claim 1, it is characterised in that: carrying out institute
When stating battery core flanging, have employed boiling hot limit machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410151080.0A CN103985829B (en) | 2014-04-15 | 2014-04-15 | Soft Roll arc battery seaming operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410151080.0A CN103985829B (en) | 2014-04-15 | 2014-04-15 | Soft Roll arc battery seaming operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103985829A CN103985829A (en) | 2014-08-13 |
| CN103985829B true CN103985829B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410151080.0A Active CN103985829B (en) | 2014-04-15 | 2014-04-15 | Soft Roll arc battery seaming operation |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157900A (en) * | 2014-08-14 | 2014-11-19 | 惠州亿纬锂能股份有限公司 | Pouch arc-shaped electrical core and processing technology thereof |
| CN105322107B (en) * | 2015-11-30 | 2018-09-04 | 小米科技有限责任公司 | A kind of battery and electronic equipment |
| CN107302104A (en) * | 2016-04-15 | 2017-10-27 | 宁德新能源科技有限公司 | Improve method of flexible packing lithium ion battery energy density and products thereof |
| CN107039674B (en) * | 2017-04-14 | 2023-07-07 | 惠州亿纬锂能股份有限公司 | Soft-package button lithium battery cell heat-sealing clamp and heat-sealing process thereof |
| CN114679656A (en) * | 2019-01-05 | 2022-06-28 | 深圳市韶音科技有限公司 | Battery pack and bone conduction speaker |
| CN111244334A (en) * | 2020-01-20 | 2020-06-05 | 曙鹏科技（深圳）有限公司 | Soft package lithium ion battery and back edge folding process method thereof |
| CN114447477B (en) * | 2022-04-08 | 2022-07-15 | 宁德新能源科技有限公司 | Electrochemical device and electric equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4175111B2 (en) * | 2000-11-21 | 2008-11-05 | ソニー株式会社 | Polymer electrolyte battery and method for producing the same |
| JP2006156161A (en) * | 2004-11-30 | 2006-06-15 | Nec Tokin Tochigi Ltd | Sealed battery |
| JP5286730B2 (en) * | 2007-09-28 | 2013-09-11 | 大日本印刷株式会社 | Flat electrochemical cell |
| CN201146199Y (en) * | 2007-12-24 | 2008-11-05 | 比亚迪股份有限公司 | Soft package battery |
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