CN206180012U - Lithium ion battery structure - Google Patents
Lithium ion battery structure Download PDFInfo
- Publication number
- CN206180012U CN206180012U CN201621268344.1U CN201621268344U CN206180012U CN 206180012 U CN206180012 U CN 206180012U CN 201621268344 U CN201621268344 U CN 201621268344U CN 206180012 U CN206180012 U CN 206180012U
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- cover plate
- negative pole
- battery structure
- 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
Abstract
The application discloses lithium ion battery structure belongs to the lithium - ion battery technology field. Lithium ion battery structure closes the three -dimensional spacer ring of setting in apron one side including the apron. Three -dimensional spacer ring includes anodal interlayer and negative pole interlayer, and it has the holding tank that holds the negative pole ear after rolling over to open on the negative pole interlayer. The utility model provides an in the lithium ion battery structure, being equipped with and keeping apart the three -dimensional spacer ring of rolling up core and apron, it has the holding tank that holds the negative pole ear to open on the three -dimensional spacer ring, and the negative pole ear behind the book is accomodate in the holding tank, has stopped the possibility of negative pole ear with the contact of aluminum hull conch wall, and it is bad to prevent that the negative pole ear from bumping the aluminum hull wall, prevents this type of electric in -core portion short circuit that harmfully leads to, improves aluminum hull class lithium ion cell security performance greatly.
Description
Technical field
The application belongs to technical field of lithium ion, specifically, is related to a kind of lithium ion battery structure.
Background technology
Lithium ion battery is a kind of rechargeable battery, and between a positive electrode and a negative electrode movement carrys out work to rely primarily on lithium ion.
In charge and discharge process, Li+ comes and goes between two electrodes embedded and deintercalation：During charging, Li+ from positive pole deintercalation, through electrolyte
Embedded negative pole, negative pole is in rich lithium state；It is then contrary during electric discharge.Battery typically adopts the material containing elemental lithium as electrode,
It is the representative of modern high performance battery.
At present, the making of cell phone type resultant battery is mainly used in as the lithium ion battery cell of shell using aluminum hull, is handss
The important component part of machine class resultant battery.Aluminum hull Li-like ions battery core operation during manufacturing is various, process portion
Operating personnel's operation in manufacturing process is easily slipped up, and causes battery core bad or slight bad.For example, folding lug does not fold to position causes
Negative electrode lug touches aluminum hull wall (aluminum hull shell wall is a part for positive pole) battery core internal short-circuit afterwards in battery core.These are slight bad or bad
Battery core there is potential safety hazard, affect the use of resultant battery.
The content of the invention
In view of this, technical problems to be solved in this application are that existing lithium ion battery structure is complicated, and folding lug holds
It is easily not in place, cause negative electrode lug to contact with aluminum hull wall, cause battery core bad or slight bad.
In order to solve above-mentioned technical problem, the application provides a kind of lithium ion battery structure, including cover plate, and its feature exists
In being arranged on the three-dimensional spacer ring of cover plate side；The three-dimensional spacer ring includes positive pole interlayer and negative pole interlayer, on the negative pole interlayer
It is provided with the holding tank for accommodating the negative electrode lug after folding；The anode ear location hole being engaged with anode ear is provided with the positive pole interlayer,
The bottom of the holding tank of the negative pole interlayer is provided with the negative electrode lug location hole being engaged with negative electrode lug.
Preferably, the holding tank is U-shaped, and the depth of the holding tank is more than the thickness of the positive pole interlayer.
Preferably, the depth of the holding tank is 1.2~1.6mm.
Further, the lithium ion battery structure also include the nickel sheet being arranged between the cover plate and three-dimensional spacer ring and
The rivet being oppositely arranged with the nickel sheet, the rivet and nickel sheet are respectively positioned at the both sides of the cover plate；It is provided with the cover plate
Allow the through hole that the rivet is passed through, the rivet is riveted through the through hole and the nickel sheet；Between the rivet and cover plate
Insulating barrier is provided with, lower insulating barrier is additionally provided between the nickel sheet and cover plate.
Preferably, the diameter with diameter greater than the rivet of the through hole, the upper insulating barrier is located at the rivet and leads to
Between hole.
Preferably, the upper insulating barrier and lower insulating barrier are insulating cement, and are formed by being molded insulating cement.
Further, the cover plate covers the three-dimensional spacer ring.
Compared with prior art, the application can be obtained including following technique effect：
1) in the lithium ion battery structure of the application, the three-dimensional spacer ring of isolation core and cover plate is provided with, is opened on three-dimensional spacer ring
Have a holding tank for accommodating negative electrode lug, the negative electrode lug point postwelding for exposing core upper end during operation, be folded to and be fully located at it is three-dimensional every
In the holding tank of circle, the possibility that negative electrode lug is contacted with aluminum hull shell wall (aluminum hull shell wall is a part for positive pole) is prevented, has prevented from bearing
It is bad that lug touches aluminum hull wall, prevents battery core internal short-circuit caused by this badness, greatly improves aluminum hull Li-like ions battery core safety
Performance.
2) in the three-dimensional spacer ring in the application, negative electrode lug location hole and anode ear are had on holding tank and positive pole interlayer
Location hole, facilitates passing through for anode ear and negative electrode lug, and the depth of holding tank more than the thickness of positive pole interlayer, prevents from rolling over and bear after ear
Lug is touched with aluminum hull.
3) cover plate, nickel sheet and rivet are additionally provided with the application, are led to respectively between rivet and cover plate, between nickel sheet and cover plate
Insulating barrier and the isolation of lower insulating barrier are crossed, when preventing from welding and rolling over lug, because negative electrode lug is pulled and drags nickel sheet nickel sheet and cover plate is caused
The short circuit that contact is caused, improves the security performance of battery core.
Certainly, implementing arbitrary product of the application must be not necessarily required to while reaching all the above technique effect.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding of the present application, constitutes the part of the application, this Shen
Schematic description and description please does not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is the schematic diagram of the lithium ion battery structure of the application；
Fig. 2 is the schematic top plan view of the lithium ion battery structure neutral body spacer ring of the application；
Fig. 3 is the schematic side view of the lithium ion battery structure neutral body spacer ring of the application；
Fig. 4 be the application lithium ion battery structure in Aluminum cover side-looking schematic diagram.
In figure：1- Aluminum covers, 101- rivets, 102- nickel sheet, the upper insulating barriers of 103-, insulating barrier under 104-, 105- liquid injection holes,
106- boss, 2- solid spacer rings, 201- negative pole interlayers, 202- holding tanks, 203- negative electrode lug location holes, 204- positive pole interlayers,
205- anode ear location holes, 3- core, 4- negative electrode lugs.
Specific embodiment
Describe presently filed embodiment in detail below in conjunction with drawings and Examples, thereby how the application is applied
Technological means come solve technical problem and reach technology effect realize that process can fully understand and implement according to this.
As in description and claim some vocabulary used in censuring specific components.Those skilled in the art should
It is understood that hardware manufacturer may call same component with different nouns.This specification and claims are not with name
The difference of title is used as distinguishing the mode of component, but the difference with component functionally is used as the criterion distinguished.Such as logical
The "comprising" of piece description and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In "." substantially " refer in receivable range of error, those skilled in the art can solve described in the range of certain error
Technical problem, basically reaches the technique effect.Additionally, " coupling " word here includes any directly and indirectly electric property coupling
Means.Therefore, if a first device is coupled to a second device described in text, representing the first device can direct electrical coupling
The second device is connected to, or the second device is electrically coupled to indirectly by other devices or coupling means.Description
Subsequent descriptions are to implement the better embodiment of the application, so the description be for the purpose of the rule for illustrating the application,
It is not limited to scope of the present application.The protection domain of the application ought be defined depending on the claims person of defining.
Also, it should be noted that term " including ", "comprising" or its any other variant are intended to nonexcludability
Comprising, so that not only include those key elements including the commodity or system of a series of key elements, but also including without clear and definite
Other key elements listed, or also include the key element intrinsic for this commodity or system.In the feelings without more restrictions
Under condition, the key element limited by sentence "including a ...", it is not excluded that in the commodity or system including the key element also
There is other identical element.
Fig. 1 to Fig. 3 is referred to, the application provides a kind of lithium ion battery structure, including cover plate 1, three-dimensional spacer ring 2 and core
3.Three-dimensional spacer ring 2 is arranged between cover plate 1 and core 3, and three-dimensional spacer ring 2 includes negative pole interlayer 201 and positive pole interlayer 204, negative pole
The holding tank 202 for accommodating the negative electrode lug 4 after folding is provided with interlayer 201.
The bottom of holding tank 202 is provided with the negative electrode lug location hole 203 being engaged with negative electrode lug 4.It is provided with positive pole interlayer 204
The anode ear location hole 205 being engaged with anode ear.Used as a kind of embodiment, holding tank 202 is U-shaped, bearing after convenient folding
The entrance of lug 4.The depth of holding tank 202 is 1.2~1.6mm, more than the thickness of positive pole interlayer 204, prevents from rolling over negative pole after ear
Ear 4 is touched with aluminum hull.Cover plate 1 covers three-dimensional spacer ring 2, it is ensured that the negative electrode lug 4 after folding is located in holding tank 203.
Fig. 4 is seen also, the application also includes being located at the rivet 101 and nickel sheet 102 in the opposite sides of cover plate 1.Rivet
The outer protection board negative pole end of 101 connections, the connection battery core inside of nickel sheet 102 core negative electrode lug end, rivet 101 and the composition lid of nickel sheet 102
The negative pole of plate, cover plate 1 itself connects outer protection board positive terminal and internal core anode ear end, and cover plate 1 itself is used as positive pole.
The through hole for allowing that rivet 101 is passed through is provided with cover plate 1, rivet 101 is riveted through through hole and nickel sheet 102.Rivet 101
Upper insulating barrier 103 is provided between cover plate 1.The diameter with diameter greater than rivet 101 of through hole, upper insulating barrier 103 extends to rivet
Between 101 and through hole, it prevents rivet 101 from contacting with cover plate 1 to intercept rivet 101 and cover plate 1.Nickel sheet 102 and cover plate 1
Between also be provided with the lower insulating barrier 104 that intercepts nickel sheet 102 and cover plate 1.Upper insulating barrier 103 and lower insulating barrier 104 are intercepted completely
Rivet 101 and nickel sheet 102 and cover plate 1, allow the application lithium ion battery structure positive pole and negative pole it is completely insulated.
Upper insulating barrier 103 and lower insulating barrier 104 can be the material for arbitrarily realizing in the battery insulating, used as a kind of embodiment party
Case, upper insulating barrier 103 and lower insulating barrier 104 are insulating cement, and are formed by being molded insulating cement.
Boss 106 is additionally provided with away from the side of cover plate 1 of nickel sheet 102, the edge of boss 106 stretches out cover plate 1, with the shape of cover plate 1
Into ladder platform, the convenient cooperation with core 3.The liquid injection hole 105 that electrolysis liquid injects core 3 is additionally provided with cover plate 1.
Fig. 1 is referred to again, it is exhausted by upper insulating barrier 103 between rivet 101 and cover plate 1 and between rivet 101 and through hole during operation
Edge, is insulated between nickel sheet 102 and cover plate 1 by lower insulating barrier 104, prevent cover plate 1 both positive and negative polarity it is bad cause battery core short circuit.Will volume
The negative electrode lug 4 that the upper end of core 3 is exposed is spot welded to after the nickel sheet 102 under cover plate 1, is folded to and is fully located at the U-shaped appearance of three-dimensional spacer ring 2
Receive in groove 203, prevented the possibility that negative electrode lug is contacted with aluminum hull shell wall (aluminum hull shell wall is a part for positive pole), solve negative pole
It is bad that ear touches aluminum hull wall, prevents battery core internal short-circuit caused by this badness.The lithium ion battery structure of the application, greatly improves
Aluminum hull Li-like ions battery core security performance.
Described above illustrates and describes some preferred embodiments of the present utility model, but as previously mentioned, it should be understood that this
Utility model is not limited to form disclosed herein, is not to be taken as the exclusion to other embodiment, and can be used for various
Other combinations, modification and environment, and can be in utility model contemplated scope described herein, by above-mentioned teaching or association area
Technology or knowledge be modified.And change that those skilled in the art are carried out and change are without departing from spirit of the present utility model and model
Enclose, then all should be in the protection domain of this utility model claims.
Claims (7)
1. a kind of lithium ion battery structure, including cover plate, it is characterised in that be arranged on the three-dimensional spacer ring of cover plate side；It is described vertical
Body spacer ring includes positive pole interlayer and negative pole interlayer, and the holding tank for accommodating the negative electrode lug after folding is provided with the negative pole interlayer；It is described
The anode ear location hole being engaged with anode ear is provided with positive pole interlayer, the bottom of the holding tank of the negative pole interlayer is provided with and bears
The negative electrode lug location hole that lug is engaged.
2. lithium ion battery structure as claimed in claim 1, it is characterised in that the holding tank be it is U-shaped, the holding tank
Thickness of the depth more than the positive pole interlayer.
3. lithium ion battery structure as claimed in claim 1 or 2, it is characterised in that the depth of the holding tank is 1.2~
1.6mm。
4. lithium ion battery structure as claimed in claim 1, it is characterised in that also including be arranged on the cover plate and it is three-dimensional every
Nickel sheet between circle and the rivet being oppositely arranged with the nickel sheet, the rivet and nickel sheet are respectively positioned at the both sides of the cover plate；
The through hole for allowing that the rivet is passed through is provided with the cover plate, the rivet is riveted through the through hole and the nickel sheet；It is described
Insulating barrier is provided between rivet and cover plate, lower insulating barrier is additionally provided between the nickel sheet and cover plate.
5. lithium ion battery structure as claimed in claim 4, it is characterised in that the through hole with diameter greater than the rivet
Diameter, the upper insulating barrier is located between the rivet and through hole.
6. the lithium ion battery structure as described in claim 4 or 5, it is characterised in that the upper insulating barrier and lower insulating barrier are
Insulating cement, and formed by being molded insulating cement.
7. lithium ion battery structure as claimed in claim 4, it is characterised in that the cover plate covers the three-dimensional spacer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621268344.1U CN206180012U (en) | 2016-11-21 | 2016-11-21 | Lithium ion battery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621268344.1U CN206180012U (en) | 2016-11-21 | 2016-11-21 | Lithium ion battery structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206180012U true CN206180012U (en) | 2017-05-17 |
Family
ID=58685865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621268344.1U Expired - Fee Related CN206180012U (en) | 2016-11-21 | 2016-11-21 | Lithium ion battery structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206180012U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649149A (en) * | 2018-05-16 | 2018-10-12 | 多氟多（焦作）新能源科技有限公司 | The connection structure and battery assembly method of battery cover board and lug |
| CN113903970A (en) * | 2021-09-26 | 2022-01-07 | 中安芯界(莱西)新能源科技有限公司 | Method for manufacturing laminated battery cell |
| CN113903971A (en) * | 2021-09-26 | 2022-01-07 | 中安芯界(莱西)新能源科技有限公司 | Slat battery chip |
-
2016
- 2016-11-21 CN CN201621268344.1U patent/CN206180012U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649149A (en) * | 2018-05-16 | 2018-10-12 | 多氟多（焦作）新能源科技有限公司 | The connection structure and battery assembly method of battery cover board and lug |
| CN113903970A (en) * | 2021-09-26 | 2022-01-07 | 中安芯界(莱西)新能源科技有限公司 | Method for manufacturing laminated battery cell |
| CN113903971A (en) * | 2021-09-26 | 2022-01-07 | 中安芯界(莱西)新能源科技有限公司 | Slat battery chip |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20201121 |