CN206313057U - Lithium ion battery - Google Patents
Lithium ion battery Download PDFInfo
- Publication number
- CN206313057U CN206313057U CN201621327443.2U CN201621327443U CN206313057U CN 206313057 U CN206313057 U CN 206313057U CN 201621327443 U CN201621327443 U CN 201621327443U CN 206313057 U CN206313057 U CN 206313057U
- Authority
- CN
- China
- Prior art keywords
- adhesive tape
- core
- fixation adhesive
- lithium ion
- hole
- 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.)
- Expired - Fee Related
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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
-
- 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 utility model is related to a kind of lithium ion battery.The lithium ion battery includes core and fixation adhesive tape, one end of fixation adhesive tape is coated on the head of core, the other end of fixation adhesive tape is coated on the afterbody of core, fixation adhesive tape is attached at the surface of core so that the position between positive plate, negative plate and barrier film is fixed, and fixation adhesive tape offers some first through hole in the head zone of core, fixation adhesive tape offers some second through holes in the tail region of core.Above-mentioned lithium ion battery, the surface for being attached at core by fixation adhesive tape is fixed with the position between positive plate, negative plate and barrier film, positive/negative plate is being caused to contact the possibility being short-circuited in the case of being heated because of the diaphragm retracts inside battery core so as to reduce, porous fixation adhesive tape can both play suppression diaphragm retracts effect, electrolyte effect of impregnation is not influenceed again, so as on the premise of electrode solution effect of impregnation is not influenceed, suppression diaphragm retracts in the case of being heated in battery, improve battery security.
Description
Technical field
The utility model is related to cell art, more particularly to a kind of lithium ion battery.
Background technology
With science and technology, the development of social economy and the arrival of information age, the digital, market of electronic product is progressively
Expand.Multifarious increase in demand of the user to electronic product function, while also being minimized to requiring the volume direction of product.Can
Know, the volume of product towards miniaturization it is adjoint be the diminishing of polymer Li-ion flexible-packed battery volume, capacity is uprised.
Traditional mode is by constantly changing material, improving voltage to lift the energy density of battery.However, pursuing energy
The lifting of metric density means to pursue ultimate attainment space availability ratio, the safety and Protection index for designing the especially limit of the limit
Using for such as slimming material, smaller big or small slice, will increase cell safety hidden danger, although before all of battery dispatches from the factory
All living through on necessary reliability demonstration or test and specification has the prompting user battery must not to be placed in into hot environment
In, to avoid thermal runaway and cause accident.But battery belongs to most dangerous parts in electronic product after all, thereby, it is ensured that battery
Security is most important.
Utility model content
Based on this, it is necessary to for the technical problem of the security for how improving battery, there is provided a kind of lithium ion battery.
A kind of lithium ion battery.The lithium ion battery includes core and fixation adhesive tape, and the core is by positive plate, negative plate
And barrier film winds form core mutually, one end of the fixation adhesive tape is coated on the head of the core, the fixation adhesive tape
The other end is coated on the afterbody of the core, and the fixation adhesive tape is attached at the surface of the core so that the positive plate, institute
The position stated between negative plate and the barrier film is fixed, and the fixation adhesive tape offered in the head zone of the core it is some
First through hole, the fixation adhesive tape offers some second through holes in the tail region of the core.
Wherein in one embodiment, the fixation adhesive tape is offered between the first through hole and second through hole
Some third through-holes.
Wherein in one embodiment, the shape of the first through hole, second through hole and the third through-hole is identical.
Wherein in one embodiment, the first through hole, second through hole and the third through-hole are uniformly distributed in
On the fixation adhesive tape.
Wherein in one embodiment, the fixation adhesive tape is the square structure of rule.
Wherein in one embodiment, the width of the fixation adhesive tape is 6~40mm.
Wherein in one embodiment, the width of the fixation adhesive tape is 10~12mm.
Wherein in one embodiment, the first through hole is circular, square, rhombus, triangle, polygon or irregular
Shape.
Wherein in one embodiment, second through hole is circular, square, rhombus, triangle, polygon or irregular
Shape.
Wherein in one embodiment, the lithium ion battery also includes plastic-aluminum shell, and the core is arranged at the aluminium
In modeling shell.
Above-mentioned lithium ion battery, the surface of the core is attached at the positive plate, the negative pole by fixation adhesive tape
Position between piece and the barrier film is fixed, thus reduce cause because of the diaphragm retracts inside battery core in the case of being heated it is positive and negative
The possibility that pole piece contact is short-circuited, meanwhile, first through hole is located at the head zone of the core, and the second through hole is located at described
The tail region of core, such porous fixation adhesive tape can both play suppression diaphragm retracts effect, and not influence electrolyte
Effect of impregnation, so as on the premise of electrode solution effect of impregnation is not influenceed, suppression diaphragm retracts in the case of being heated in battery are carried
Battery security high.
Brief description of the drawings
Fig. 1 is the structural representation of lithium ion battery in one embodiment；
The structural representation that Fig. 2 is connected for core in one embodiment with fixation adhesive tape.
Specific embodiment
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings to this
The specific embodiment of utility model is described in detail.Elaborate many details in order to abundant in the following description
Understand the utility model.But the utility model can be implemented with being much different from other manner described here, this area
Technical staff can do similar improvement in the case of without prejudice to the utility model intension, therefore the utility model does not receive following public affairs
The limitation of the specific embodiment opened.
Fig. 1 and Fig. 2 is referred to, its structural representation for being respectively lithium ion battery in one embodiment and core and fixation
The structural representation of adhesive tape connection.For example, a kind of lithium ion battery 10.The lithium ion battery 10 includes core 110 and fixing glue
Band 120, by positive plate 111, negative plate 112 and barrier film 113, winding is formed core 110 mutually.For example, the one of fixation adhesive tape 120
End is coated on the head 114 of core 110, and the other end of fixation adhesive tape 120 is coated on the afterbody 115 of core 110.For example, fixed
Adhesive tape 120 is attached at the surface of core 110 so that the position between positive plate 111, negative plate 112 and barrier film 113 is fixed, and consolidates
Determine adhesive tape 120 and offer some first through hole 121 in the region of head 114 of core 110, fixation adhesive tape 120 is in the tail of core 110
The region of portion 15 offers some second through holes 122, to immerse electrode solution.
Above-mentioned lithium ion battery 10, the surface of core 110 is attached at positive plate 111, negative plate by fixation adhesive tape 120
Position between 112 and barrier film 113 is fixed, so as to reduce cause because the barrier film 113 inside battery core shrinks in the case of being heated
Positive/negative plate 112 contacts the possibility being short-circuited, meanwhile, first through hole 121 is located at the head zone of core 110, and second leads to
Hole 122 is located at the tail region of core 110, and such porous fixation adhesive tape 120 can both play suppression barrier film 113 and shrink to be made
With, and electrolyte effect of impregnation is not influenceed, so as on the premise of electrode solution effect of impregnation is not influenceed, suppression is being heated in battery
Situation lower diaphragm plate 113 shrinks, and improves battery security.
For example, fixation adhesive tape 120 offers some third through-holes 123 between the through hole 122 of first through hole 121 and second.
For example, the shape of first through hole 121, the second through hole 122 and third through-hole 123 is identical.Wherein in one embodiment, first leads to
Hole 121, the second through hole 122 and third through-hole 123 are uniformly distributed on fixation adhesive tape 120.Fig. 1 shows the infiltration side of electrolyte
To that is, electrolyte can be from first through hole 121, the immersion core of the second through hole 122 so that electrolyte can flow to electricity by adhesive tape hole position
Core inner, it is ensured that complete wetting, the porous for so being formed by first through hole 121, the second through hole 122 and third through-hole 123 is consolidated
Determining adhesive tape can both play suppression diaphragm retracts effect, and not influence electrolyte effect of impregnation.
For example, fixation adhesive tape is the square structure of rule.It is stronger to barrier film inhibitory action because fixation adhesive tape is wider, electricity
The possibility that pond is short-circuited in high temperature environments is smaller, and security is higher, for example, the width of fixation adhesive tape is 6~40mm, it is excellent
Elect 10~12mm as.For example, the width of fixation adhesive tape is 10mm.For example, the width of fixation adhesive tape is 12mm.In this way, by this
The cellular fixation adhesive tape of embodiment, can further lift fixed effect by way of increasing tape width, because using normal
Rule fixation adhesive tape, electrolyte can not pass through adhesive tape, therefore fixation adhesive tape is unsuitable wide, otherwise block electrolyte infiltration passage, shadow
Effect of impregnation is rung, and can be solved the above problems using the fixation adhesive tape of the present embodiment, effect of impregnation is not influenceed, be conducive to widening
The fixation adhesive tape of type is used.
Wherein in one embodiment, first through hole is circular, square, rhombus, triangle, polygon or irregular shape
Shape.Wherein in one embodiment, the second through hole is circular, square, rhombus, triangle, polygon or irregular shape.Such as
This, using novel porous shape fixation adhesive tape, electrolyte can be flowed to inside battery core when infiltrating from fixation adhesive tape, do not influence infiltration to imitate
Really, widened fixation adhesive tape is conducive to use, so as to lift battery security.
It is noted that lithium ion battery also includes plastic-aluminum shell, core is arranged in plastic-aluminum shell.So pass through aluminium
Modeling shell replaces the steel or aluminium shell of general lithium ion battery so that low manufacture cost, used as the letter of battery case manufacture craft
Folk prescription just, both reduces battery cost and in turn simplify technical process, be particularly suitable for Soft Roll Li-like ions battery or polymer lithium from
The packaging of sub- field of batteries.
The utility model has the advantage of：The surface of the core is attached at the positive plate, institute by fixation adhesive tape
The position stated between negative plate and the barrier film is fixed, so as to reduce led because of the diaphragm retracts inside battery core in the case of being heated
The possibility for causing positive/negative plate contact to be short-circuited, meanwhile, first through hole is located at the head zone of the core, the second through hole position
In the tail region of the core, such porous fixation adhesive tape can both play suppression diaphragm retracts effect, and not influence
Electrolyte effect of impregnation, so as on the premise of electrode solution effect of impregnation is not influenceed, compare with traditional battery, in same size
Under the conditions of, by using the fixation adhesive tape of the present embodiment, suppress battery diaphragm retracts rate in high temperature environments, lift the peace of battery
Quan Xing.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of lithium ion battery, including core and fixation adhesive tape, the core are wound mutually by positive plate, negative plate and barrier film
Formed, one end of the fixation adhesive tape is coated on the head of the core, and the other end of the fixation adhesive tape is coated on the volume
The afterbody of core, it is characterised in that
The fixation adhesive tape is attached at the surface of the core so that between the positive plate, the negative plate and the barrier film
Position is fixed, and the fixation adhesive tape offers some first through hole in the head zone of the core, the fixation adhesive tape in
The tail region of the core offers some second through holes.
2. lithium ion battery according to claim 1, it is characterised in that the fixation adhesive tape is in the first through hole and institute
State and offer some third through-holes between the second through hole.
3. lithium ion battery according to claim 2, it is characterised in that the first through hole, second through hole and institute
The shape for stating third through-hole is identical.
4. lithium ion battery according to claim 3, it is characterised in that the first through hole, second through hole and institute
Third through-hole is stated to be uniformly distributed on the fixation adhesive tape.
5. lithium ion battery according to claim 1, it is characterised in that the fixation adhesive tape is the square structure of rule.
6. lithium ion battery according to claim 5, it is characterised in that the width of the fixation adhesive tape is 6~40mm.
7. lithium ion battery according to claim 6, it is characterised in that the width of the fixation adhesive tape is 10~12mm.
8. lithium ion battery according to claim 1, it is characterised in that the first through hole be circular, square, rhombus,
Triangle, polygon or irregular shape.
9. lithium ion battery according to claim 1, it is characterised in that second through hole be circular, square, rhombus,
Triangle, polygon or irregular shape.
10. lithium ion battery according to any one of claim 1 to 9, it is characterised in that the lithium ion battery is also wrapped
Plastic-aluminum shell is included, the core is arranged in the plastic-aluminum shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621327443.2U CN206313057U (en) | 2016-12-05 | 2016-12-05 | Lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621327443.2U CN206313057U (en) | 2016-12-05 | 2016-12-05 | Lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206313057U true CN206313057U (en) | 2017-07-07 |
Family
ID=59250789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621327443.2U Expired - Fee Related CN206313057U (en) | 2016-12-05 | 2016-12-05 | Lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206313057U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109980131A (en) * | 2019-03-13 | 2019-07-05 | 欣旺达电动汽车电池有限公司 | A kind of lithium ion high thermal conductivity insulating film and preparation method thereof |
| CN113471547A (en) * | 2021-05-18 | 2021-10-01 | 惠州锂威新能源科技有限公司 | Preparation method of battery and battery |
| CN114204133A (en) * | 2021-12-09 | 2022-03-18 | 惠州亿纬锂能股份有限公司 | Method for solving expansion of winding type battery cell |
| CN116111244A (en) * | 2023-04-10 | 2023-05-12 | 宁德新能源科技有限公司 | Electrochemical device and electricity using device |
-
2016
- 2016-12-05 CN CN201621327443.2U patent/CN206313057U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109980131A (en) * | 2019-03-13 | 2019-07-05 | 欣旺达电动汽车电池有限公司 | A kind of lithium ion high thermal conductivity insulating film and preparation method thereof |
| CN113471547A (en) * | 2021-05-18 | 2021-10-01 | 惠州锂威新能源科技有限公司 | Preparation method of battery and battery |
| CN114204133A (en) * | 2021-12-09 | 2022-03-18 | 惠州亿纬锂能股份有限公司 | Method for solving expansion of winding type battery cell |
| CN116111244A (en) * | 2023-04-10 | 2023-05-12 | 宁德新能源科技有限公司 | Electrochemical device and electricity using device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170707 Termination date: 20191205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |