CN208608239U - A kind of aluminum-shell battery - Google Patents
A kind of aluminum-shell battery Download PDFInfo
- Publication number
- CN208608239U CN208608239U CN201821359204.4U CN201821359204U CN208608239U CN 208608239 U CN208608239 U CN 208608239U CN 201821359204 U CN201821359204 U CN 201821359204U CN 208608239 U CN208608239 U CN 208608239U
- Authority
- CN
- China
- Prior art keywords
- connection sheet
- aluminum
- conductive column
- insulation board
- shell 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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- 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
Abstract
The utility model provides a kind of aluminum-shell battery, belongs to battery technology field.It solves the problems, such as that existing aluminum hull power battery safety coefficient is low.This aluminum-shell battery includes the insulating base of cover board and connecting cover plate, the conductive column for conveying electric current is equipped in cover board and in insulating base, conductive column and cover board are connected, aluminum-shell battery further includes the connection sheet for transmitting electric current, insulating base and connection sheet are connected, conductive column sticks in connection sheet, and the expanding layer that conductive column and connection sheet can be made to separate along conductive column axial expansion is equipped between insulating base and cover board.This aluminum-shell battery has the advantages that improve safety coefficient.
Description
Technical field
The utility model belongs to battery technology field, is related to a kind of aluminum-shell battery.
Background technique
With the development of society, low-carbon environment-friendly theory is rooted in the hearts of the people, in recent years, lithium battery is because of its light weight, voltage height, body
Product is small, many advantages, such as having extended cycle life and is environmental-friendly so that lithium battery start it is universal in each field.Wherein, aluminum hull electricity
Chi Yinqi has the characteristics that thermal diffusivity is good, energy density is high and convenient in groups and wide in dynamic field and energy storage field application
It is general, but be connected between the pole and connection sheet of common aluminum-shell battery by rivet, after electric current output, electric current pass through connection sheet,
Rivet is conducted again to pole, this kind of conduction pattern causes electric current conduction efficiency low, and then leads to the temperature of battery roll core and tab
Degree is high, the problem for causing aluminum-shell battery safety coefficient low.
In view of the above problems, each cell production companies improve the corresponding construction of power battery, such as in
State's Patent document data discloses a kind of rectangular aluminum hull cover plate of power battery [patent No.: 201621230959.5；Shen Qing Publication
Number: CN206332100U], including cover board, support cover board pole under spacer ring, be connected cover board pole and export electric current pole
Ear is equipped with pole connection sheet between pole and tab, pole connection sheet is fixedly connected with tab and pole, so that defeated by tab
The electric current sent can be exported by pole connection sheet to pole.
The rectangular aluminum hull cover plate of power battery can be improved the conduction efficiency of electric current.When the aluminum hull power battery short circuit,
Internal temperature of battery persistently increases, and the connection sheet high temperature of connecting tab and pole, which fuses, is divided into two parts for connection sheet, still,
The fusing of connection sheet high temperature, which exists, separates halfway situation, and conductive column and tab are still connected in connection sheet, are caused by pole
The electric current of ear output can still be delivered to pole, and then lead to aluminum hull power battery there are still security risks.
Summary of the invention
The purpose of this utility model is to propose a kind of aluminum-shell battery for the above-mentioned problems in the prior art, is solved
Certainly the technical issues of is the safety coefficient for how improving aluminum-shell battery.
The purpose of this utility model can be realized by the following technical scheme: a kind of aluminum-shell battery, including cover board and company
The insulating base of connects cover plate, is equipped with the conductive column for conveying electric current in the cover board and in insulating base, the conductive column with
Cover board is connected, and aluminum-shell battery further includes the connection sheet for transmitting electric current, which is characterized in that the insulating base and connection sheet are solid
Even, the conductive column sticks in connection sheet, and being equipped between the insulating base and cover board can make along conductive column axial expansion
The expanding layer that conductive column and connection sheet separate.
The application is to stick on conductive column in connection sheet, and expanding layer, this aluminum hull are arranged between insulating base and cover board
The principle of battery is: when aluminum hull power battery short circuit, internal temperature of battery is persistently increased, even if there are high temperature fusing for connection sheet
Halfway situation, expanding layer can make conductive column separate with connection sheet along conductive column axial expansion, to avoid defeated by tab
Electric current out is delivered to conductive column by connection sheet, to improve the safety coefficient of aluminum-shell battery.
In a kind of above-mentioned aluminum-shell battery, the insulating base includes the insulation board of connecting cover plate, and the cover board bottom is opened
Equipped with the link slot being embedded in for insulation board, the expanding layer is between insulation board and cover board.Link slot and insulation board make
Insulating base is easy to connect with cover board, and expanding layer can be then arranged between insulation board and cover board, avoids in addition in insulation board and lid
Component for arranging expanding layer is set between plate, and the position of expanding layer accelerates the separation speed of conductive column and connection sheet
Degree, to improve the safety coefficient of aluminum-shell battery.
In a kind of above-mentioned aluminum-shell battery, the expanding layer is between insulation board upper surface and link slot slot bottom, institute
State expanding layer with a thickness of 0.1-2mm.The groove depth of link slot is set greater than to the thickness of insulation board, is connected when insulation board is embedded in
Also there is the space for arranging expanding layer, when aluminum-shell battery short circuit, internal temperature of battery is persistently risen after slot, in link slot
Height, intumescent layers act directly on link slot slot bottom and cover board upper surface, further speed up conductive column and connection sheet
Separating rate, and rationally setting expanding layer thickness, shorten link slot and open up length, while conductive column is sufficiently divided with connection sheet
From to improve the safety coefficient of aluminum-shell battery.
In a kind of above-mentioned aluminum-shell battery, the insulation board upper surface offers the holding tank for expanding layer to be arranged,
The expanding layer with a thickness of 0.1-2mm.Expanding layer is arranged in holding tank and on the one hand limits expansion by accommodating groove groove wall
On the other hand the arrangement range of layer to expand layer arrangement conveniently, meanwhile, expanding layer thickness is rationally set, shortens holding tank and opens
If being sufficiently separated conductive column with connection sheet while length, to improve the safety coefficient of aluminum-shell battery.
In a kind of above-mentioned aluminum-shell battery, the insulation board is in long strip, and the insulation board ends end face is equipped with card
Socket part, the connection groove groove wall offer the clamping groove for clamping portion insertion, the clamping portion upper surface and insulation board upper surface
Concordantly.The shape of insulation board is adapted with the shape of cover board, and clamping portion upper surface is concordant with insulation board upper surface so that clamping portion
It can be conveniently embedded in clamping groove, make insulating base fixed with cover board in the link slot of clamping portion, to improve aluminium
The safety coefficient of housing battery.
In a kind of above-mentioned aluminum-shell battery, the cover board, which is offered, to be extended to the first of link slot slot bottom from top surface and wears
Hole offers the second perforating of the first perforating of connection on the insulation board, and the connection sheet covers the second perforating aperture,
The conductive column sequentially passes through the first perforating and the second perforating and reclines with connection sheet.It first perforating and second wears
Apertured enables conductive column easily to pass through cover board and insulating base, and connection sheet covering second wears aperture and on the one hand to lead
Electric column passes through the second perforating and can be resisted against in connection sheet, on the other hand conductive column is come into full contact with connection sheet,
And then conductive column is delivered to by the electric current stabilization of connection sheet output, to improve the safety coefficient of aluminum-shell battery.
In a kind of above-mentioned aluminum-shell battery, the insulating base further includes the support leg for connecting insulation board, the support leg
Positioned at insulation board lower surface, the height of the support leg is greater than the thickness of connection sheet.Support leg on the one hand can to insulation board into
Row support, increases insulating base intensity, cover board and connection sheet is on the other hand avoided to contact with the other component inside aluminum-shell battery,
To improve the safety coefficient of aluminum-shell battery.
In a kind of above-mentioned aluminum-shell battery, the connection sheet includes that conductive column connection sheet interconnected and tab connect
Contact pin is led between the conductive column connection sheet and conductive column by hot-melt adhesive paste between the conductive column connection sheet and insulation board
Welded connecting is crossed, aluminum-shell battery further includes the tab for extracted current, passes through welding between the tab connection sheet and tab
Connection.When connection sheet connects, conductive column connection sheet is connected with conductive column, tab connection sheet is connected with tab, this kind of structure
So that it is easy to connect between connection sheet and conductive column and between connection sheet and tab, meanwhile, hot-melt adhesive paste and welding connect
It connects so that fixed between connection sheet and conductive column and between connection sheet and tab, further such that by tab output
Electric current, which can be stablized, to be delivered on conductive column, to improve the safety coefficient of aluminum-shell battery.
In a kind of above-mentioned aluminum-shell battery, the connection sheet further includes shim, and the tab connection sheet passes through separation
Piece is connected with conductive column connection sheet, and the tab connection sheet and conductive column connection sheet are double-layer structure, and the shim is
The double-deck flexible connection structure.Double-layer structure is further such that tab connection sheet connect firm, conductive column connection sheet and conduction with tab
Column connection is firm, so that stablized by tab to the current transmission between conductive column, meanwhile, tab connection sheet and conductive column connect
Kept apart between contact pin by shim, the double-deck flexible connection structure makes shim bending convenient, reduces connection sheet and was assembling
It is damaged in journey because of bending, to guarantee that current transmission is stablized, to improve the safety coefficient of aluminum-shell battery.
Compared with prior art, a kind of aluminum-shell battery provided by the utility model has the advantage that
1, conductive column is sticked in connection sheet, and expanding layer is set between insulating base and cover board, when aluminum hull power electric
When the short circuit of pond, internal temperature of battery is persistently increased, and expanding layer can make conductive column separate with connection sheet along conductive column axial expansion
It opens, conductive column is delivered to by connection sheet to avoid the electric current exported by tab, to improve the safety coefficient of aluminum-shell battery.
2, insulation board is embedded in link slot and clamping portion is embedded in holding tank and makes insulating base and cover board easy to connect
And it is firm, while avoiding that the component for arranging expanding layer is in addition arranged between insulation board and cover board, and the arrangement of expanding layer
The separating rate of conductive column and connection sheet is accelerated in position, to further increase the safety coefficient of aluminum-shell battery.
3, kept apart between tab connection sheet and conductive column connection sheet by shim, shim bending is convenient, reduces and connects
Contact pin damages in assembling process because of bending, to guarantee that current transmission is stablized, to improve the safety coefficient of aluminum-shell battery.
Detailed description of the invention
Fig. 1 is the overall structure cross-sectional view of this aluminum-shell battery.
Fig. 2 is the partial enlarged view of Fig. 1.
Fig. 3 is the overall structure diagram of connection sheet.
Fig. 4 is the partial enlarged view of the present embodiment two.
In figure, 1, cover board；11, link slot；111, clamping groove；12, holding tank；13, the first perforating；2, insulating base；21,
Insulation board；211, the second perforating；22, support leg；23, clamping portion；3, tab；4, conductive column；5, connection sheet；51, tab connects
Contact pin；52, conductive column connection sheet；53, shim；6, expanding layer.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Embodiment one
As shown in Figure 1, this aluminum-shell battery includes the insulating base 2 of cover board 1 and connecting cover plate 1.
As shown in Fig. 2, the conductive column 4 for conveying electric current is equipped in cover board 1 and in insulating base 2, conductive column 4 and lid
Plate 1 is connected, and aluminum-shell battery further includes the connection sheet 5 for transmitting electric current, and insulating base 2 and connection sheet 5 are connected, and conductive column 4 reclines
In connection sheet 5, being equipped between insulating base 2 and cover board 1 can make conductive column 4 divide with connection sheet 5 along 4 axial expansion of conductive column
The expanding layer 6 left, the insulation board 21 of insulating base 2 including connecting cover plate 1, expanding layer 6 be located at 21 upper surface of insulation board with connect
Between 11 slot bottom of slot, expanding layer 6 with a thickness of 0.1-2mm, insulation board 21 is in long strip, and 21 both ends end face of insulation board is equipped with card
Socket part 23,1 bottom of cover board offer the link slot 11 being embedded in for insulation board 21, and 11 cell wall of link slot offers embedding for clamping portion 23
The clamping groove 111 entered, 23 upper surface of clamping portion is concordant with 21 upper surface of insulation board, and cover board 1 offers from top surface and extends to receiving
First perforating 13 of 12 slot bottom of slot offers the second perforating 211 of the first perforating 13 of connection, connection sheet on insulation board 21
5 covering 211 apertures of the second perforating, conductive column 4 sequentially pass through the first perforating 13 and the second perforating 211 and and connection sheet
5 recline, and insulating base 2 further includes the support leg 22 for connecting insulation board 21, and support leg 22 is located at 21 lower surface of insulation board, support leg 22
Height be greater than connection sheet 5 thickness.
As shown in figure 3, connection sheet 5 includes conductive column connection sheet 52, tab connection sheet 51 and shim 53, tab connection
Piece 51 is connected by shim 53 with conductive column connection sheet 52, and tab connection sheet 51 and conductive column connection sheet 52 are the double-deck knot
Structure, shim 53 are multilayer flexible connection structure, pass through hot-melt adhesive paste, conductive column between conductive column connection sheet 52 and insulation board 21
By being welded to connect between connection sheet 52 and conductive column 4, aluminum-shell battery further includes the 3 tab connection sheet of tab for extracted current
Pass through welded connecting between 51 and tab 3.
Insulation board 21 is embedded in link slot 11 and clamping portion 23 is embedded in holding tank 12, meanwhile, expanding layer 6 is set to and is connected
Between 21 upper surface of 11 slot bottom of access slot and insulation board, conductive column 4 pass through the first perforating 13 and the second perforating 211 and against
In conductive column connection sheet 52, when aluminum hull power battery short circuit, internal temperature of battery is persistently increased, and expanding layer 6 can be along conduction
4 axial expansion of column separates conductive column 4 with connection sheet 5, is conveyed to avoid the electric current exported by tab 3 by connection sheet 5
To conductive column 4, to improve the safety coefficient of aluminum-shell battery.
Embodiment two
As shown in figure 4, the present embodiment is essentially identical with the structure and principle of embodiment one, different places are, this reality
It applies in example, 21 upper surface of insulation board offers the holding tank 12 for expanding layer 6 to be arranged.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although be used more herein cover board 1, link slot 11, clamping groove 111, holding tank 12, the first perforating 13, absolutely
Edge seat 2, insulation board 21, the second perforating 211, support leg 22, clamping portion 23, tab 3, conductive column 4, connection sheet 5, tab connection
The terms such as piece 51, conductive column connection sheet 52, shim 53, expanding layer 6, but it does not exclude the possibility of using other terms.Make
It is used for the purpose of being more convenient to describe and explain the essence of the utility model with these terms；It is construed as any attached
The limitation added is all contrary to the spirit of the present invention.
Claims (9)
1. a kind of aluminum-shell battery, the insulating base (2) including cover board (1) and connecting cover plate (1), in the cover board (1) and absolutely
The conductive column (4) for conveying electric current is equipped in edge seat (2), the conductive column (4) and cover board (1) are connected, and aluminum-shell battery is also
Including the connection sheet (5) for transmitting electric current, which is characterized in that the insulating base (2) and connection sheet (5) are connected, the conduction
Column (4) sticks on connection sheet (5), and being equipped between the insulating base (2) and cover board (1) can be along conductive column (4) axial expansion
So that the expanding layer (6) that conductive column (4) and connection sheet (5) separate.
2. a kind of aluminum-shell battery according to claim 1, which is characterized in that the insulating base (2) includes connecting cover plate (1)
Insulation board (21), cover board (1) bottom offer for insulation board (21) insertion link slot (11), the expanding layer (6)
Between insulation board (21) and cover board (1).
3. a kind of aluminum-shell battery according to claim 2, which is characterized in that the expanding layer (6) is located at insulation board (21)
Between upper surface and link slot (11) slot bottom, the expanding layer (6) with a thickness of 0.1-2mm.
4. a kind of aluminum-shell battery according to claim 2, which is characterized in that insulation board (21) upper surface opens up useful
In setting expanding layer (6) holding tank (12), the expanding layer (6) with a thickness of 0.1-2mm.
5. a kind of aluminum-shell battery according to Claims 2 or 3 or 4, which is characterized in that the insulation board (21) is in strip
Shape, insulation board (21) the both ends end face are equipped with clamping portion (23), and link slot (11) cell wall is offered for clamping portion
(23) clamping groove (111) being embedded in, clamping portion (23) upper surface are concordant with insulation board (21) upper surface.
6. a kind of aluminum-shell battery according to Claims 2 or 3 or 4, which is characterized in that the cover board (1) offers from top
Face extends to first perforating (13) of link slot (11) slot bottom, and the first perforating of connection is offered on the insulation board (21)
(13) the second perforating (211), the connection sheet (5) cover the second perforating (211) aperture, and the conductive column (4) is successively
It reclines across the first perforating (13) and the second perforating (211) and with connection sheet (5).
7. a kind of aluminum-shell battery according to Claims 2 or 3 or 4, which is characterized in that the insulating base (2) further includes connecting
The support leg (22) of insulation board (21) is connect, the support leg (22) is located at insulation board (21) lower surface, the support leg (22)
Height is greater than the thickness of connection sheet (5).
8. a kind of aluminum-shell battery according to Claims 2 or 3 or 4, which is characterized in that the connection sheet (5) includes mutual
The conductive column connection sheet (52) and tab connection sheet (51) of connection, between the conductive column connection sheet (52) and insulation board (21)
By hot-melt adhesive paste, by being welded to connect between the conductive column connection sheet (52) and conductive column (4), aluminum-shell battery further includes using
Pass through welded connecting between the tab (3) of extracted current, the tab connection sheet (51) and tab (3).
9. a kind of aluminum-shell battery according to claim 8, which is characterized in that the connection sheet (5) further includes shim
(53), the tab connection sheet (51) is connected by shim (53) with conductive column connection sheet (52), the tab connection sheet
(51) and conductive column connection sheet (52) is double-layer structure, and the shim (53) is multilayer flexible connection structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821359204.4U CN208608239U (en) | 2018-08-22 | 2018-08-22 | A kind of aluminum-shell battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821359204.4U CN208608239U (en) | 2018-08-22 | 2018-08-22 | A kind of aluminum-shell battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208608239U true CN208608239U (en) | 2019-03-15 |
Family
ID=65679437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821359204.4U Expired - Fee Related CN208608239U (en) | 2018-08-22 | 2018-08-22 | A kind of aluminum-shell battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208608239U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115020931A (en) * | 2021-12-30 | 2022-09-06 | 荣耀终端有限公司 | Battery and electronic device |
| WO2023142967A1 (en) * | 2022-01-28 | 2023-08-03 | 宁德时代新能源科技股份有限公司 | Safety structure, battery and electric device |
-
2018
- 2018-08-22 CN CN201821359204.4U patent/CN208608239U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115020931A (en) * | 2021-12-30 | 2022-09-06 | 荣耀终端有限公司 | Battery and electronic device |
| WO2023142967A1 (en) * | 2022-01-28 | 2023-08-03 | 宁德时代新能源科技股份有限公司 | Safety structure, battery and electric 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: 20190315 Termination date: 20210822 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |