CN205488249U - Packaging structure of lithium ion attery - Google Patents
Packaging structure of lithium ion attery Download PDFInfo
- Publication number
- CN205488249U CN205488249U CN201620273966.7U CN201620273966U CN205488249U CN 205488249 U CN205488249 U CN 205488249U CN 201620273966 U CN201620273966 U CN 201620273966U CN 205488249 U CN205488249 U CN 205488249U
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- CN
- China
- Prior art keywords
- battery
- plastic film
- air bag
- aluminum plastic
- plastic
- 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.)
- Withdrawn - After Issue
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Classifications
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a packaging structure of lithium ion attery, including plastic -aluminum membrane, epimembranal gasbag and the electric core standing groove of being provided with of plastic -aluminum, follow plastic -aluminum membrane broken -line's perpendicular line is provided with to the both ends of plastic -aluminum membrane symmetry in proper order from broken -line electricity core standing groove, gasbag, and between electricity core standing groove and the gasbag what the plastic -aluminum membrane was equipped with holding utmost point ear keeps away the vacancy mouth. The utility model discloses battery preparation's quality, save material cost can be improved effectively and the disability rate is reduced.
Description
Technical field
This utility model relates to lithium ion battery preparing technical field, the encapsulating structure of a kind of lithium ion battery.
Background technology
As it is shown in figure 1, existing encapsulation technology uses air bag at main hole (battery core placing trough) side, liquid injection port is positioned at battery cathode side, during fluid injection, upwards, electrolyte is inside the internal upper and lower two side inflow battery cores of core, and gradually permeates for liquid injection port, this process path is long, and kept off by closedtop limit and angle envelope steric hindrance, electrolyte needs the long period to enter inside core, causes electrolyte to remain in air bag, easily it is extruded when sealing, causes electrolytic corrosion.
Battery carries out fixture baking after chemical conversion and produces, on battery after folder, cylinder arm applies certain pressure to battery core, battery core is flattened, this process can enter air bag the gas of residual, electrolyte extruding in battery core, as it was previously stated, the path of electrolyte turnover air bag is not smooth, cause electrolyte, gas upwardly closedtop limit, battery closedtop limit is caused to pop, causing electrolyte to flow out, battery corrosion pollutes, and the serious battery that causes is scrapped.
Electrolyte unnecessary in battery, gas, when vacuum-pumping and sealing produces, are extracted out, owing to path is the most smooth by battery, this phenomenon can cause electrolyte row unclean, and in battery, entrained electrolyte is more, even has gas, battery is caused to feel like jelly, surface irregularity, affect battery outward appearance.
By existing packaged type, both sides edge sealing, flanging easily rebounds and opens, causes battery ultra-wide, in order to meet customer need, needs to reduce core width, to promoting energy density build-up of pressure.
Utility model content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, it is provided that the encapsulating structure of a kind of lithium ion battery.
For solving above-mentioned technical problem, technical solution adopted in the utility model is: the encapsulating structure of a kind of lithium ion battery, including aluminum plastic film, air bag and battery core placing trough it is provided with on aluminum plastic film, it is provided with the empty avoiding breach of accommodating lug from the described aluminum plastic film that the two ends of doubling alignment aluminum plastic film are symmetrically arranged with between described battery core placing trough, air bag, and described battery core placing trough and air bag successively along the vertical line of described aluminum plastic film broken line.
The beneficial effects of the utility model are: by changing the position of air bag, air bag is arranged at the head of battery, the path making electrolyte turnover air bag is more smooth and easy, readily permeable during fluid injection, can more unnecessary entrained electrolyte and gas be discharged when aerofluxus and vacuum-pumping and sealing.And so design can be effectively saved the use of aluminum plastic film material, save material cost；Be conducive to the protection of positive and negative lug metal tape, make lug be difficult to be broken in the centre position of aluminum plastic film；After fluid injection operation completes, battery can vertically be placed, air bag upwards, the beneficially battery core positive/negative plate absorption to electrolyte；The battery core effect here of below 3.5mm thickness is very significantly improved；During two envelopes, for unnecessary electrolyte, utilize evacuation promptly unnecessary electrolyte can be detached air bag, solve the phenomenon of feeling like jelly of existing technique battery；The length of two envelope edge sealing reduces, and air bag increases from the distance of battery main body battery core, can reduce the probability of electrolytic corrosion battery during two envelopes.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing encapsulating structure；
Fig. 2 is the schematic diagram of this utility model encapsulating structure；
Fig. 3 is the schematic diagram of this utility model edge sealing structure；
Fig. 4 is the schematic diagram of this utility model chemical conversion state.
In figure, 1, aluminum plastic film；2, air bag；3, battery core placing trough；4, battery core；5, empty avoiding breach；6, lug；7, sloping platform；8, both positive and negative polarity contact jaw；A, side seal；B, U-shaped closedtop；C, secondary edge sealing.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail.
As shown in Figure 2,3, a kind of encapsulating structure of lithium ion battery, including aluminum plastic film, air bag and battery core placing trough it is provided with on aluminum plastic film, it is provided with the empty avoiding breach of accommodating lug from the described aluminum plastic film that the two ends of doubling alignment aluminum plastic film are symmetrically arranged with between described battery core placing trough, air bag, and described battery core placing trough and air bag successively along the vertical line of described aluminum plastic film broken line.Concrete, the size for the battery core of same size, originally aluminum plastic film is long 168mm width 107mm, and applies aluminum plastic film of the present utility model the longest 240mm width 73mm, less than the area occupied of original aluminum plastic film material, reaches to save the effect of material cost.Fluid injection is inserted material box and is carried out having enough to meet the need subsequent processing after completing, the soft-package battery being placed in material box, battery core is in the state attentioned, and upward, air bag is upward in lug end；The originally soft-package battery of encapsulating structure, in order to ensure that air bag is upwards, it is necessary to make battery core side place, makes lug end towards left side or right-justification, so there will be lug and situation that lug metal tape is broken, cause lug to rupture, and battery core is scrapped.
As shown in Figure 3, the method for packing of encapsulating structure based on above-mentioned lithium ion battery, first along the broken line doubling of described aluminum plastic film, then by side seal by battery core placing trough, the right and left edge sealing of air bag, by U-shaped closedtop along described empty avoiding breach edge sealing, finally the battery core placing trough side between U-shaped closedtop and side seal is carried out secondary edge sealing.The length of secondary edge sealing reduces, and air bag increases from the distance of battery main body battery core, can reduce the probability of electrolytic corrosion battery during two envelopes.For the battery of 3.5 thickness, the size in the Nei Weifeng district of original encapsulating structure battery core is difficult to control, Wei Feng district is bigger than normal or after cutting edge effectively seal less than normal, the service life of battery core and safety all can reduce.Nei Weifeng district is the position that battery core main body is had a common boundary with two envelopes.
As shown in Figure 4, the chemical synthesizing method of encapsulating structure based on above-mentioned lithium ion battery, it is broken line along described empty avoiding breach, cell parts more than broken line is turned up, make lug expose the both positive and negative polarity contact jaw with formation cabinet clip and be electrically connected with.Wherein, described formation cabinet clip includes being positioned at the described both positive and negative polarity contact jaw of bottom and being positioned at the sloping platform on this both positive and negative polarity contact jaw, and this sloping platform is for being relied on by the described cell parts turned up.
Above embodiment simply indicates that rather than limits this utility model, therefore all equivalences done according to the method described in this utility model patent claim change or modify, and are all included in this utility model patent claim.
Claims (1)
1. the encapsulating structure of a lithium ion battery, including aluminum plastic film, air bag and battery core placing trough it is provided with on aluminum plastic film, it is characterized in that: be provided with the empty avoiding breach of accommodating lug from the described aluminum plastic film that the two ends of doubling alignment aluminum plastic film are symmetrically arranged with between described battery core placing trough, air bag, and described battery core placing trough and air bag successively along the vertical line of described aluminum plastic film broken line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620273966.7U CN205488249U (en) | 2016-04-06 | 2016-04-06 | Packaging structure of lithium ion attery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620273966.7U CN205488249U (en) | 2016-04-06 | 2016-04-06 | Packaging structure of lithium ion attery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205488249U true CN205488249U (en) | 2016-08-17 |
Family
ID=56645707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620273966.7U Withdrawn - After Issue CN205488249U (en) | 2016-04-06 | 2016-04-06 | Packaging structure of lithium ion attery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205488249U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702885A (en) * | 2016-04-06 | 2016-06-22 | 东莞市安德丰电池有限公司 | Packaging structure of lithium ion battery, and packaging method and formation method for packaging structure |
| CN106486629A (en) * | 2016-12-14 | 2017-03-08 | 河北银隆新能源有限公司 | Soft-package battery |
| CN108258326A (en) * | 2017-12-22 | 2018-07-06 | 深圳瑞隆新能源科技有限公司 | A kind of Soft Roll coiling battery for improving chemical conversion aerogenesis and preparation method thereof |
| CN113054237A (en) * | 2021-03-30 | 2021-06-29 | 天津力神电池股份有限公司 | High-energy-density soft package lithium ion battery |
| CN116505109A (en) * | 2023-06-08 | 2023-07-28 | 江苏正力新能电池技术有限公司 | Formation method of square battery |
-
2016
- 2016-04-06 CN CN201620273966.7U patent/CN205488249U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702885A (en) * | 2016-04-06 | 2016-06-22 | 东莞市安德丰电池有限公司 | Packaging structure of lithium ion battery, and packaging method and formation method for packaging structure |
| CN106486629A (en) * | 2016-12-14 | 2017-03-08 | 河北银隆新能源有限公司 | Soft-package battery |
| CN108258326A (en) * | 2017-12-22 | 2018-07-06 | 深圳瑞隆新能源科技有限公司 | A kind of Soft Roll coiling battery for improving chemical conversion aerogenesis and preparation method thereof |
| CN113054237A (en) * | 2021-03-30 | 2021-06-29 | 天津力神电池股份有限公司 | High-energy-density soft package lithium ion battery |
| CN116505109A (en) * | 2023-06-08 | 2023-07-28 | 江苏正力新能电池技术有限公司 | Formation method of square battery |
| CN116505109B (en) * | 2023-06-08 | 2023-08-25 | 江苏正力新能电池技术有限公司 | Formation method of square battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160817 Effective date of abandoning: 20180417 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160817 Effective date of abandoning: 20180417 |