CN210576160U - Novel soft package lithium ion battery - Google Patents
Novel soft package lithium ion battery Download PDFInfo
- Publication number
- CN210576160U CN210576160U CN201921417385.6U CN201921417385U CN210576160U CN 210576160 U CN210576160 U CN 210576160U CN 201921417385 U CN201921417385 U CN 201921417385U CN 210576160 U CN210576160 U CN 210576160U
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- soft package
- aluminum
- package lithium
- 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.)
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 44
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000005538 encapsulation Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 1
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 238000009461 vacuum packaging Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a novel soft package lithium ion battery, which belongs to the field of lithium ion batteries, and the technical proposal is characterized in that a sealed aluminum-plastic shell is composed of an upper shell and a lower shell, and the middle part of the aluminum-plastic shell is provided with a battery core area for placing a battery core; the outer wall of the upper part of the aluminum-plastic shell is provided with an air collecting bag, and the air collecting bag has a concave-flat initial state and an inflatable convex saturated state; edge sealing mechanisms are arranged at the peripheral positions of the upper shell, the lower shell and the battery cell area so as to enable the battery cell to be in a vacuum sealing state, and a circulation cavity is arranged in the middle of each edge sealing mechanism; the circulation cavity is communicated with the gas collection bag. The pressure inside the soft package lithium ion battery can be reduced, and the soft package lithium ion battery is prevented from being cracked; the early warning is sent out before the soft package lithium ion battery is located outside air contact, and the potential safety hazard of the soft package lithium ion battery is effectively reduced.
Description
Technical Field
The utility model relates to a lithium ion battery technical field particularly, relates to a novel soft packet of lithium ion battery.
Background
The soft package lithium ion battery has high energy density and good safety performance and rate capability, becomes the most ideal power energy at present, and along with the rapid development of new energy, people put forward higher and higher requirements on the performance of the lithium ion battery, especially the requirements on safety performance, service life and the like.
At present, soft package lithium ion battery vacuum packaging back, when receiving destruction, inside atmospheric pressure is too big, the easy problem of breaking of taking place, but also can make the plastic-aluminum membrane encapsulation part rise, make the inside contact air of lithium ion battery, the inside lithium of battery and air reaction, it is dangerous to produce, in order that the soft package lithium ion of early warning takes place to leak before the inside contact air of lithium ion battery, reduce soft package lithium ion battery potential safety hazard, at first need improve soft package lithium ion battery structure.
Disclosure of Invention
A primary object of the present invention is to provide a novel soft-packaged lithium ion battery to solve the problems in the above background art.
In order to achieve the purpose, the utility model provides a novel soft package lithium ion battery, which comprises a sealed aluminum-plastic shell consisting of an upper shell and a lower shell, wherein the middle part of the aluminum-plastic shell is provided with a battery core area for placing a battery core; the outer wall of the upper part of the aluminum-plastic shell is provided with an air collecting bag, and the air collecting bag has a concave-flat initial state and an inflatable convex saturated state; edge sealing mechanisms are arranged at the peripheral positions of the upper shell, the lower shell and the battery cell area so as to enable the battery cell to be in a vacuum sealing state, and a circulation cavity is arranged in the middle of each edge sealing mechanism; the circulation cavity is communicated with the gas collection bag.
Further, the banding mechanism includes that casing and lower casing all are provided with narrow limit banding and broadside banding, goes up casing and casing down the encapsulation is corresponded respectively to narrow limit banding, broadside banding to it is fixed through sealed glue, so that electric core is in vacuum seal state, form the circulation chamber between narrow limit banding and the broadside banding.
Further, the broadside edge sealing is arranged close to one side of the battery core.
Further, the air collecting bags are arranged at equal intervals.
Further, the air collecting bag is made of reinforced fiber materials.
Furthermore, the battery also comprises a tab, one end of the tab is electrically welded on the battery cell, the other end of the tab extends out of the aluminum-plastic shell, and a packaging adhesive is arranged at the joint of the aluminum-plastic shell and the tab.
Use the technical scheme of the utility model, beneficial effect is:
1. when the edge sealing part of the edge sealing mechanism close to one side of the battery core expands, the vacuum circulation cavity is arranged, so that gas inside the soft package lithium ion battery can be filled in the vacuum circulation cavity, the pressure inside the soft package lithium ion battery can be reduced, and the soft package lithium ion battery is prevented from being cracked;
2. vacuum circulation chamber and gas collection package intercommunication for the gas of soft packet of lithium ion battery inside can fill the gas collection package, makes the gas collection package turn into the saturated condition by initial condition, makes personnel can be by the change of state of gas collection package, thereby judges whether soft packet of lithium ion battery leaks, realizes sending the early warning before soft packet of lithium ion battery is located the outside air contact, has reduced soft packet of lithium ion battery's potential safety hazard effectively.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows an overall structure of the present invention;
FIG. 2 shows a cross-sectional view of the present invention at the position of FIG. 1B-B;
fig. 3 shows an enlarged view of fig. 2A of the present invention.
Wherein the figures include the following reference numerals:
10. an aluminum-plastic shell; 11. a current core region; 20. a sealing mechanism; 21. sealing the narrow edge; 22. sealing the wide edge; 31. a gas collection bag; 32. a vacuum circulation chamber; 40. an electric core; 41. and (7) a tab.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to fig. 3, the utility model provides a novel soft package lithium ion battery, which comprises a sealed aluminum-plastic shell 10 formed by an upper shell and a lower shell, wherein a battery core region 11 is arranged in the middle of the aluminum-plastic shell 10 and used for placing a battery core 40; the outer wall of the upper part of the aluminum-plastic shell 10 is provided with a gas collecting bag 31, and the gas collecting bag 31 has a concave-flat initial state and an inflatable convex saturated state; the peripheral positions of the upper shell, the lower shell and the battery cell area 11 are all provided with edge sealing mechanisms 20 so as to enable the battery cell 40 to be in a vacuum sealing state, and the middle part of each edge sealing mechanism 20 is provided with a vacuum circulation cavity 32; the circulation chamber 32 communicates with the gas collection bag 31.
By applying the technical scheme of the embodiment, the battery cell 40 is placed in the battery cell area 11, the upper shell and the lower shell are packaged through the edge sealing mechanism 20 to form the aluminum-plastic shell 10, the interior of the aluminum-plastic shell 10 is vacuumized, so that the battery cell 40 is in a vacuum sealed environment, after the battery cell 40 is packaged in a vacuum manner, when the battery cell is damaged, the internal air pressure is too high, the edge sealing part of the edge sealing mechanism 20, which is close to one side of the battery cell 40, is expanded, and the vacuum circulation cavity 32 can be filled with the gas in the soft package lithium ion battery through the vacuum circulation cavity 32 arranged in the middle of the edge sealing mechanism 20, so that the pressure in the soft package lithium ion battery can be reduced, and;
wherein, vacuum circulation chamber 32 communicates with gas collection package 31, make the gas of soft packet of lithium ion battery inside can fill gas collection package 31, gas collection package 31 turns into to aerify bellied saturated condition by concave flat initial condition, thereby personnel can be by gas collection package 31's change of state, judge whether soft packet of lithium ion battery leaks, the realization is close to the banding part of electric core 40 one side and is expanded at banding mechanism 20, when keeping away from the banding of electric core 40 one side complete (namely soft packet of lithium ion battery inside gas does not contact with the air), send out the early warning of leaking, soft packet of lithium ion battery's potential safety hazard has been reduced effectively.
Optionally, the gas collection package 31 is provided with a plurality ofly for the equidistant, when can reduce the inside atmospheric pressure load of soft packet of lithium ion battery, has improved the early warning effect effectively.
As for the specific structure of the edge sealing mechanism 20, as shown in fig. 3, the edge sealing mechanism 20 includes a narrow-edge sealed edge 21 and a wide-edge sealed edge 22 both disposed on the upper casing and the lower casing, and the narrow-edge sealed edge 21 and the wide-edge sealed edge 22 of the upper casing and the lower casing are respectively and correspondingly encapsulated and fixed by a sealant, so that the battery cell 40 is in a vacuum sealing state, and a circulation cavity 32 is formed between the narrow-edge sealed edge 21 and the wide-edge sealed edge 22.
As shown in fig. 3, the broadside edge sealing 22 is disposed near one side of the battery core 40, and with such a configuration, the sealing effect can be improved, and the problem that the edge sealing part is expanded due to the increase of the internal air pressure of the soft package lithium ion battery is avoided.
Specifically, the gas collection bag 31 is made of reinforced fibers, and the problem that the early warning effect is reduced due to the fact that the gas collection bag 31 is damaged in the using process can be effectively solved.
As shown in fig. 2, the battery further includes a tab 41, one end of the tab 41 is electrically welded to the electrical core 40, the other end of the tab extends out of the aluminum-plastic shell 10, and a sealing adhesive is disposed at a joint of the aluminum-plastic shell 10 and the tab 41, so as to improve the overall sealing performance of the aluminum-plastic shell 10.
From the above description, it can be seen that the specific using method and operation principle of the above-mentioned embodiments of the present invention are as follows: firstly, electric core 40 places at electric core district 11, go up the casing and encapsulate through banding mechanism 20 with lower casing and constitute aluminum-plastic casing 10, then, carry out evacuation treatment to aluminum-plastic casing 10 inside, make electric core 40 be in the airtight environment of vacuum, immediately, vacuum circulation chamber 32 and gas collection package 31 intercommunication, make the gas of soft packet lithium ion battery inside can fill gas collection package 31, gas collection package 31 turns into the bellied saturated condition of aerifing by concave flat initial condition, thereby personnel can be by the state change of gas collection package 31, judge whether soft packet lithium ion battery leaks.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a novel soft packet of lithium ion battery which characterized in that: comprises that
The upper shell and the lower shell form a sealed aluminum-plastic shell (10), and the middle part of the aluminum-plastic shell (10) is provided with a battery core area (11) for placing a battery core (40);
the outer wall of the upper part of the aluminum-plastic shell (10) is provided with an air collecting bag (31), and the air collecting bag (31) has a concave-flat initial state and an inflatable convex saturated state;
edge sealing mechanisms (20) are arranged at the peripheral positions of the upper shell, the lower shell and the electric core area (11) so as to enable the electric core (40) to be in a vacuum sealing state, and a vacuum circulating cavity (32) is arranged in the middle of each edge sealing mechanism (20);
the circulation cavity (32) is communicated with the gas collecting bag (31).
2. The novel soft package lithium ion battery of claim 1, wherein: banding mechanism (20) include casing and casing all be provided with down narrow limit banding (21) and broadside banding (22), go up casing and casing down narrow limit banding (21), broadside banding (22) correspond the encapsulation respectively to it is fixed through sealed glue, so that electric core (40) are in the vacuum seal state, form circulation chamber (32) between narrow limit banding (21) and broadside banding (22).
3. The novel soft package lithium ion battery of claim 2, wherein: the broadside edge sealing edge (22) is arranged close to one side of the battery core (40).
4. A novel soft pack lithium ion battery according to any one of claims 1-3, characterized in that: the air collecting bags (31) are arranged at equal intervals.
5. The novel soft package lithium ion battery of claim 1, wherein: the air collecting bag (31) is made of reinforced fiber materials.
6. The novel soft package lithium ion battery of claim 1, wherein: still include utmost point ear, the one end electric welding of utmost point ear (41) is in on electric core (40), aluminum-plastic casing (10) are stretched out to the other end, the junction of aluminum-plastic casing (10) and utmost point ear (41) is provided with the encapsulation and glues.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921417385.6U CN210576160U (en) | 2019-08-29 | 2019-08-29 | Novel soft package lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921417385.6U CN210576160U (en) | 2019-08-29 | 2019-08-29 | Novel soft package lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210576160U true CN210576160U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921417385.6U Active CN210576160U (en) | 2019-08-29 | 2019-08-29 | Novel soft package lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210576160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117080673A (en) * | 2023-10-17 | 2023-11-17 | 厦门海辰储能科技股份有限公司 | Battery module and power utilization device |
-
2019
- 2019-08-29 CN CN201921417385.6U patent/CN210576160U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117080673A (en) * | 2023-10-17 | 2023-11-17 | 厦门海辰储能科技股份有限公司 | Battery module and power utilization device |
| CN117080673B (en) * | 2023-10-17 | 2024-01-26 | 厦门海辰储能科技股份有限公司 | Battery module and power utilization device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20231226 Granted publication date: 20200519 |