CN209357859U - A kind of aluminum shell column lithium ion battery - Google Patents
A kind of aluminum shell column lithium ion battery Download PDFInfo
- Publication number
- CN209357859U CN209357859U CN201920218203.6U CN201920218203U CN209357859U CN 209357859 U CN209357859 U CN 209357859U CN 201920218203 U CN201920218203 U CN 201920218203U CN 209357859 U CN209357859 U CN 209357859U
- Authority
- CN
- China
- Prior art keywords
- negative cover
- negative
- rotary table
- lithium ion
- ion battery
- 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 utility model discloses a kind of aluminum shell column lithium ion batteries, including negative cover, battery case, negative cover includes negative cover side rotary table, negative cover aluminum disk, rotary table on the inside of negative cover, external insulation piece is provided between the negative cover side rotary table and negative cover aluminum disk, end face is bonded to each other with negative cover side rotary table thereon, and external insulation piece lower end surface is bonded to each other with negative cover aluminum disk, the internal resistance of cell of preparation is small, it is excessive effectively to overcome the internal resistance of cell existing in the prior art, increase the risk defect of short circuit, the positive and negative anodes of whole lithium ion battery are located at both ends, so that battery case is not charged, reduce the risk of short circuit, safety with higher.
Description
Technical field
The utility model belongs to field of batteries, and in particular to a kind of aluminum shell column lithium ion battery.
Background technique
In recent years, the use of ion battery obtains tremendous development, but simultaneously market also lithium ion battery is proposed it is higher
Requirement, such as higher charge-discharge magnification, higher safety etc..The column lithium ion battery of the maturation of industrialization at present,
Due to the limitation of processing space in manufacturing process, multi pole ears welding is difficult to realize, and positive and negative anodes are in same plane after sealing,
There are biggish short-circuit risks.
In the prior art, for example, patent No. CN201720907924.9, discloses a kind of rectangular aluminum hull lithium of high-energy density
Ion battery, comprising: two coiling directions in mirror image and the core of parallel connection, each core by negative electrode tab, positive plate and
Single side ceramic diaphragm is wound, and the positive plate at a core ending is than the cathode length of a film, another core
The negative electrode tab at ending is such to increase lithium-ion electric by adjusting positive plate and cathode leaf length than the positive length of a film
There is defects for the mode of pond energy density, since some lithium ions needs use under high magnification working environment, the prior art
In lithium ion battery can have that the internal resistance of cell is excessive, increase the risk of short circuit, while being not suitable for powerful use environment.
Utility model content
In order to overcome in the prior art lithium ion battery can have that the internal resistance of cell is excessive, increase the risk of short circuit, simultaneously
Be not suitable for the defect of powerful use environment, the utility model provides a kind of easy welding of use battery pole ear, prepares resistance
It is small, suitable for a kind of aluminum shell column lithium ion battery under high magnification.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of aluminum shell column lithium ion battery, packet
Negative cover, battery case are included, negative cover includes negative cover side rotary table, negative cover aluminum disk, negative cover inside circle
Platform is provided with external insulation piece between the negative cover side rotary table and negative cover aluminum disk, thereon end face and negative cover
Plate side rotary table is bonded to each other, and external insulation piece lower end surface is bonded to each other with negative cover aluminum disk, the circle on the inside of negative cover
Platform upper end is fitted with interior insulation gasket, is internally provided with core in battery case, interior at least provided with a core cathode
Ear is provided with copper confluence piece on the inside of core negative electrode lug, and top is provided with negative cover, negative cover towards battery case it
Between be provided with insulating washer A, be provided with insulation spacer on the downside of insulating washer A, the lower end of battery case be provided with anode
Aluminium confluence piece is arranged in cover board in core.
Above-mentioned aluminum shell column lithium ion battery, in positive cover plate face to being provided with insulating washer B, institute between battery case
The insulating washer B and insulating washer A that state symmetrically are distributed in the both ends of battery case.
Above-mentioned aluminum shell column lithium ion battery, the battery case are aluminum cylindrical body, and the battery case
Both ends are open respectively.
Above-mentioned aluminum shell column lithium ion battery, the negative cover are aluminum disk, are diameter among negative cover
Account for the centre bore of disk overall diameter 10%-50%.
Above-mentioned aluminum shell column lithium ion battery, the two sides of the centre bore are nickel matter or copper rotary table, the circle
Platform has step, has insulation spacer to be separated by between two sides rotary table and aluminum disk, at rotary table step in diameter and aluminum disk
Heart pore diameter size is identical.
Above-mentioned aluminum shell column lithium ion battery is symmetrically arranged with liquid injection hole in the negative cover.
Above-mentioned aluminum shell column lithium ion battery, the negative cover outside is provided with negative insulation gasket, in anode
Positive insulation spacer is provided on the outside of cover board.
Above-mentioned aluminum shell column lithium ion battery, the liquid injection hole sealing means use steel ball mechanical seal, and steel ball is straight
Diameter is 1.02-1.1 times of fluid injection bore dia.
The utility model has the beneficial effects that the utility model lithium ion battery is internally provided with volume using battery case
Core, at least provided with a core negative electrode lug inside core, so that welding is easy in the preparation process of lithium ion battery, preparation
The internal resistance of cell it is small, effectively overcome that the internal resistance of cell existing in the prior art is excessive, increase the risk defect of short circuit, will
The positive and negative anodes of whole lithium ion battery are located at both ends, so that battery case is not charged, reduce the risk of short circuit, with higher
Safety.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model negative cover.
Fig. 2 is the structural schematic diagram of the utility model.
In figure: 1 is negative cover, and 2 be battery case, and 3 be negative cover side rotary table, and 4 be negative cover aluminum disk, 5
It is external insulation piece for negative cover inside rotary table, 6,7 be interior insulation piece, and 8 be core, and 9 be core negative electrode lug, and 10 be copper confluence piece,
11 be insulation spacer, and 12 be positive cover plate, and 13 be aluminium confluence piece, and 14 be liquid injection hole, and 15 be insulating washer A, and 16 be insulating washer
B。
Specific embodiment
It is described further below in conjunction with content of the attached drawing to the utility model.
A kind of aluminum shell column lithium ion battery, including negative cover 1, battery case 2, negative cover 1 include negative cover
Side rotary table 3, negative cover aluminum disk 4, negative cover inside rotary table 5, the negative cover side rotary table 3 and negative cover aluminum
External insulation piece 6 is provided between disk 4, end face is bonded to each other with negative cover side rotary table 5 thereon, and 6 lower end of external insulation piece
Face is bonded to each other with negative cover aluminum disk 4, and 3 upper end of rotary table is fitted with interior insulation gasket 7 on the inside of negative cover, outside battery
Shell 2 is internally provided with core 8, at least provided with a core negative electrode lug 9, copper remittance is provided on the inside of core negative electrode lug 9
Flow 10, top is provided with negative cover 1, in negative cover 1 towards insulating washer A is provided between battery case 2, exhausted
It is provided with insulation spacer 11 on the downside of edge washer A15, the lower end of battery case 2 is provided with positive cover board 12, is set in core 8
Set aluminium confluence piece 13.
In positive cover board 12 towards being provided with insulating washer B16 between battery case 2, the insulating washer B16 and absolutely
Edge washer A15 is symmetrically distributed in the both ends of battery case 2, by the mutually matched distribution of insulation spacer 11, can allow electricity
Pond shell 2 and negative cover 1 and positive cover board leakproofness are more good.
Wherein the battery case 2 is aluminum cylindrical body, and 2 both ends of battery case are open respectively, in battery
The both ends open of shell 2 can be realized the free handling of core,
Wherein the negative cover 1 is aluminum disk, is that diameter accounts for disk overall diameter 10%-50% among negative cover 1
Centre bore, realize the efficient of the installation of negative cover 1, make negative cover installation close.
Wherein the two sides of the centre bore 14 are nickel matter or copper rotary table, and the rotary table has step, two sides rotary table
There is insulation spacer to be separated by between aluminum disk, diameter is identical as aluminum disk center-hole diameter size at rotary table step, from
And it can satisfy requirement of the negative cover 1 under connection, it is preferred that be symmetrically arranged in the negative cover 1
Liquid injection hole 14 facilitates injection electrolyte.
Wherein, it is provided with negative insulation gasket on the outside of the negative cover 1, is provided with just in the outside of positive cover board 12
Pole insulation spacer can carry out the mark of positive and negative anodes in this way, convenient for the positive and negative anodes of lithium ion battery respectively.
Preferably, 14 sealing means of liquid injection hole use steel ball mechanical seal, and diameter of the steel ball is 14 diameter of liquid injection hole
1.02-1.1 times, allow liquid injection hole 14 that can carry out mechanical seal, improve the sealing performance of liquid injection hole 14, while allowing liquid injection hole
14 are effectively sealed when not needing work, prevent electrolyte from overflowing, and cause the operational failure of lithium ion battery.
As shown in Figure 1, the mutually successively setting of negative cover side rotary table 3 and negative cover aluminum disk 4, in negative cover side
It is provided with external insulation gasket 6 between rotary table 3 and negative cover aluminum disk 4, is provided in the lower end of negative cover aluminum disk 4
Interior insulation gasket 7 is provided with rotary table 3 on the inside of negative cover in the lower section of interior insulation spacer 7.
The above content is combine specifically embodiment to a kind of aluminum shell column lithium ion battery described in the utility model,
Made further description, is not defined the scope of the utility model, is not departing from the utility model design
Under the premise of, the various changes and improvements that those of ordinary skill in the art make according to the technical solution of the utility model should all
It is considered as the protection scope of the utility model.
Claims (8)
1. a kind of aluminum shell column lithium ion battery, including negative cover, battery case, it is characterised in that: negative cover includes negative
Polar cap plate side rotary table, negative cover aluminum disk, negative cover inside rotary table, the negative cover side rotary table and negative cover aluminium
External insulation piece is provided between matter disk, end face is bonded to each other with negative cover side rotary table thereon, and external insulation piece lower end surface
It is bonded to each other with negative cover aluminum disk, rotary table upper end is fitted with interior insulation gasket on the inside of negative cover, in battery case
It is internally provided with core, interior at least provided with a core negative electrode lug, core negative electrode lug inside is provided with copper confluence piece, top
Portion is provided with negative cover, in negative cover towards insulating washer A is provided between battery case, in the downside of insulating washer A
It is provided with insulation spacer, the lower end of battery case is provided with positive cover board, aluminium confluence piece is set in core.
2. aluminum shell column lithium ion battery according to claim 1, it is characterised in that: in positive cover plate face to battery case
Between be provided with insulating washer B, the insulating washer B and insulating washer A are symmetrically distributed in the both ends of battery case.
3. aluminum shell column lithium ion battery according to claim 1, it is characterised in that: the battery case is aluminum circle
Cylinder, and the battery case both ends are open respectively.
4. aluminum shell column lithium ion battery according to claim 1, it is characterised in that: the negative cover is aluminum circle
Piece, negative cover centre are the centre bore that diameter accounts for disk overall diameter 10%-50%.
5. aluminum shell column lithium ion battery according to claim 4, it is characterised in that: the two sides of the centre bore are nickel
Matter or copper rotary table, the rotary table have step, have insulation spacer to be separated by between two sides rotary table and aluminum disk, rotary table platform
Diameter is identical as aluminum disk center-hole diameter size at rank.
6. aluminum shell column lithium ion battery according to claim 1, it is characterised in that: symmetrically set in the negative cover
It is equipped with liquid injection hole.
7. aluminum shell column lithium ion battery according to claim 1, it is characterised in that: setting on the outside of the negative cover
There is negative insulation gasket, positive insulation spacer is provided on the outside of positive cover board.
8. aluminum shell column lithium ion battery according to claim 6, it is characterised in that: the liquid injection hole sealing means are adopted
With steel ball mechanical seal, diameter of the steel ball is 1.02-1.1 times of fluid injection bore dia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920218203.6U CN209357859U (en) | 2019-02-21 | 2019-02-21 | A kind of aluminum shell column lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920218203.6U CN209357859U (en) | 2019-02-21 | 2019-02-21 | A kind of aluminum shell column lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209357859U true CN209357859U (en) | 2019-09-06 |
Family
ID=67803666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920218203.6U Expired - Fee Related CN209357859U (en) | 2019-02-21 | 2019-02-21 | A kind of aluminum shell column lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209357859U (en) |
-
2019
- 2019-02-21 CN CN201920218203.6U patent/CN209357859U/en not_active Expired - Fee Related
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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: 20190906 Termination date: 20210221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |