CN108155335A - assembly for secondary battery - Google Patents
assembly for secondary battery Download PDFInfo
- Publication number
- CN108155335A CN108155335A CN201710823060.7A CN201710823060A CN108155335A CN 108155335 A CN108155335 A CN 108155335A CN 201710823060 A CN201710823060 A CN 201710823060A CN 108155335 A CN108155335 A CN 108155335A
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- China
- Prior art keywords
- connecting portion
- lug
- pole
- secondary cell
- connection sheet
- 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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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary 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
- 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
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- Connection Of Batteries Or Terminals (AREA)
Abstract
An assembly for a secondary battery includes a first connection tab and an insulating retention block. The first connecting piece is provided with a first pole connecting part, a first tab connecting part and a first fusing part which is connected between the first pole connecting part and the first tab connecting part in series. Two ends of the insulating holding block are respectively fixedly connected with the first pole connecting part and the first pole lug connecting part; after the first fusing part fuses, the insulating holding block can keep the relative position of the first pole connecting part and the first pole lug connecting part fixed. After first fusing portion fuses, the relative position that insulating holding block can keep first utmost point post connecting portion and first utmost point ear connecting portion is fixed, prevents that first connection piece from separating into independent two parts in first fusing portion fusing department, first utmost point ear connecting portion and first utmost point post connecting portion contact when avoiding secondary battery to receive external impact, prevents that the circuit from communicateing once more, improves the security performance of battery.
Description
The application be former application for a patent for invention (applying date on December 02nd, 2016, application No. is 201611099270.8,
Entitled " secondary cell ") divisional application.
Technical field
The present invention relates to field of batteries more particularly to a kind of secondary cells and the component for secondary cell.
Background technology
Referring to figs. 1 to Fig. 3, the first connection sheet of prior art generally use 3 realizes the first lug 21 of battery core 2 and head cover
The fixed electrical connection of 1 the first pole 11, and the first connection sheet 3 is equipped with the first fuse part 33, when the first connection sheet 3 is by big
During electric current, the first fuse part 33 can be fused in time quickly to cut off being electrically connected for the first lug 21 and the first pole 11, prevented
Secondary cell thermal runaway；But after the fusing of the first fuse part 33, the first pole connecting portion 31 of the first connection sheet 3 and the first pole
Ear connecting portion 32 becomes mutually independent two parts, when battery core 2 is shaken by external impact, can pass through 21 band of the first lug
Dynamic first lug connecting portion about 32 play, Hen easily overlap with the first pole connecting portion 31, cause circuit again
Conducting, so as to cause thermal runaway and sets off an explosion so that the first fuse part 33 can not play the role of safeguard protection.
Invention content
In view of the problem of background technology, the purpose of the present invention is to provide a kind of component for secondary cell,
It can prevent secondary cell thermal runaway, improve the security performance of battery.
To achieve these goals, the present invention provides a kind of component for secondary cell, including the first connection sheet
With insulation maintainance block.First connection sheet has the first pole connecting portion, the first lug connecting portion and is connected on the first pole company
The first fuse part between socket part and the first lug connecting portion.Insulate maintainance block both ends respectively with the first pole connecting portion and first
Lug connecting portion is fixedly connected；After the first fuse part fuses, insulation maintainance block can keep the first pole connecting portion and first
The relative position of lug connecting portion is fixed.
Beneficial effects of the present invention are as follows：
According to the present invention in the component of secondary cell, the first fuse part to be connected on the first pole connecting portion and
Between one lug connecting portion, so when secondary cell overcharge or abnormal phenomenon cause the first connection sheet to pass through high current,
First fuse part can be fused in time with the electrical connection for quickly cutting off the first pole connecting portion and the first lug connecting portion, prevent two
Primary cell thermal runaway；And after the first fuse part fuses, insulation maintainance block can keep the first pole connecting portion and the first lug
The relative position of connecting portion is fixed, and the first connection sheet is prevented to be separated into independent two parts at the first fuse part fusing, is avoided
Secondary cell is contacted by the first lug connecting portion during external impact and the first pole connecting portion, is prevented circuit from connecting again, is carried
The security performance of high battery.
Description of the drawings
Fig. 1 is the schematic diagram of the secondary cell of the prior art；
Fig. 2 is the sectional view of the secondary cell of the prior art；
Fig. 3 is the exploded view of the secondary cell of the prior art；
Fig. 4 is the schematic diagram according to the secondary cell of the present invention；
Fig. 5 is the exploded view according to the secondary cell of the present invention；
Fig. 6 is the sectional view according to the secondary cell of the present invention；
Fig. 7 is the schematic diagram according to the first lug of the secondary cell of the present invention；
Fig. 8 is another schematic diagram according to the first lug of the secondary cell of the present invention；
Fig. 9 is the schematic diagram according to the first connection sheet of the secondary cell of the present invention, insulation maintainance block and insulating pad；
Figure 10 is the exploded view of Fig. 9；
Figure 11 is the schematic diagram according to the first connection sheet of the secondary cell of the present invention；
Figure 12 is the stereogram according to the insulation maintainance block of the secondary cell of the present invention；
Figure 13 is the vertical view of Figure 12；
Figure 14 is the sectional view that A-A makes along Figure 13.
Wherein, the reference numerals are as follows：
1 head cover, 41 second pole connecting portion
11 first pole, 42 second lug connecting portion
12 second pole, the 421 second sub- connecting portion of lug
2 battery core, 422 second lug subclass portion
21 first lugs 5 insulation maintainance block
211 linkage section, 51 first maintaining part
212 bending segment, 511 fixed column
22 second lug, 52 second maintaining part
23 main body, 6 insulation strip
3 first connection sheet, 7 insulating pad
31 first pole connecting portion, 8 welding protection piece
32 first lug connecting portion H mounting holes
The sub- connecting portion G notches of 321 first lugs
322 first lug subclass portion S insulating cements
33 first fuse part L length directions
331 opening W width directions
332 sub- fuse part T thickness directions
4 second connection sheets
Specific embodiment
Carry out the secondary cell that the present invention will be described in detail with reference to the accompanying drawings.
With reference to Fig. 4 to Figure 14, secondary cell according to the present invention includes：Head cover 1, equipped with opposite polarity first pole 11
With the second pole 12；Battery core 2 has opposite polarity first lug, 21 and second lug 22；First connection sheet 3 is connected on
Between one lug 21 and the first pole 11；Second lug 22 is electrically connected with the second pole 12.First connection sheet 3 has：First pole
Column connecting portion 31 is electrically connected with the fixation of the first pole 11；First lug connecting portion 32 is electrically connected with the fixation of the first lug 21；With
And first fuse part 33, it is connected between the first pole connecting portion 31 and the first lug connecting portion 32.The secondary cell also wraps
It includes：Insulate maintainance block 5, and both ends are fixedly connected respectively with the first pole connecting portion 31 and the first lug connecting portion 32；When first molten
After disconnected portion 33 fuses, insulation maintainance block 5 can keep the relative position of the first pole connecting portion 31 and the first lug connecting portion 32
It is fixed.
In the secondary battery in accordance with the present invention, the first fuse part 33 is connected on the first pole connecting portion 31 and the first lug
Between connecting portion 32, so when overcharge or abnormal phenomenon cause the first connection sheet 3 to pass through high current, the first fuse part 33
It can fuse in time quickly to cut off being electrically connected for the first lug 21 and the first pole 11, prevent secondary cell thermal runaway；And work as
After the fusing of first fuse part 33, insulation maintainance block 5 can keep the phase of the first pole connecting portion 31 and the first lug connecting portion 32
Position is fixed, the first connection sheet 3 is prevented to be separated into independent two parts at 33 fusing of the first fuse part, and (i.e. the first pole connects
31 and first lug connecting portion 32 of socket part), secondary cell is avoided by the first lug connecting portion 32 and the first pole during external impact
Column connecting portion 31 contact (when secondary cell is hit, battery core 2 shakes, so as to pass through the first lug 21 drive the first lug
Connecting portion 32 moves, and the first lug connecting portion 32 and the first pole connecting portion 31 may be caused to overlap), prevent circuit again
Secondary connection improves the security performance of battery.
In the secondary battery in accordance with the present invention, with reference to Fig. 9 to Figure 14, the first pole connecting portion 31 is connected with the first lug
The mounting hole H of perforation is equipped in portion 32；Accordingly, insulation maintainance block 5 includes：First maintaining part 51, is set to the first connection
The side of 3 through-thickness T of piece, has fixed column 511 corresponding with mounting hole H, and fixed column 511 passes through corresponding mounting hole H
Extend to the opposite side of 3 through-thickness T of the first connection sheet；And second maintaining part 52, the first connection sheet 3 is set to along thickness
The opposite side of direction T is fixedly connected with the fixed column 511 across corresponding mounting hole H of the first maintaining part 51.First maintaining part 51
It can be made with the second maintaining part 52 of plastic cement.
In the secondary battery in accordance with the present invention, it by the cooperation of the first maintaining part 51 and the second maintaining part 52, realizes exhausted
Edge maintainance block 5 is fixedly connected with the first pole connecting portion 31 and the first lug connecting portion 32.Second maintaining part 52 can by hot melt,
Be interference fitted, rivet, snapping connection, being bonded, the modes such as grafting are fixedly connected with the fixed column 511 of the first maintaining part 51, still
Above-mentioned connection mode is also not necessarily limited to, as long as consolidating for 511 and second maintaining part 52 of fixed column of the first maintaining part 51 can be realized
Fixed connection.
In the secondary battery in accordance with the present invention, it is equipped with and passes through on the first pole connecting portion 31 and the first lug connecting portion 32
Logical mounting hole H；Insulation maintainance block 5 includes：First maintaining part 51 is set to the side of 3 through-thickness T of the first connection sheet,
With fixed column 511 corresponding with mounting hole H, fixed column 511, which penetrates corresponding mounting hole H and fixed with the first connection sheet 3, to be connected
It connects.First maintaining part 51 can be made of plastic cement.
In the secondary battery in accordance with the present invention, fixed column 511 can be by heating, being interference fitted, riveting, the side such as being bonded
Formula is directly fixedly connected with the first lug connecting portion 32, but is also not necessarily limited to above-mentioned connection mode.
In the secondary battery in accordance with the present invention, mounting hole H is waist hole.The shape of fixed column 511 is opposite with mounting hole H
It should.
In the secondary battery in accordance with the present invention, with reference to Fig. 9 to Figure 11, mounting hole H is circular hole, and the first pole connecting portion
Mounting hole H at least two on 31, the mounting hole H at least two of the first lug connecting portion 32.The shape of fixed column 511 with
Mounting hole H is corresponding.First pole connecting portion 31 is realized for the cooperation by the first maintaining part 51 and the second maintaining part 52
The embodiment being fixedly connected with the first lug connecting portion 32, if on the first lug connecting portion 32 (or first pole connecting portion 31)
Mounting hole H only there are one (that is across there are one the fixed columns 511 of the first lug connecting portion 32), then when first
After fuse part 33 fuses, secondary cell may be caused the first lug connecting portion 32 to be rotated around fixed column 511 by external impact,
So as to which the first lug connecting portion 32 and the first pole connecting portion 31 be caused to contact.And for the fixed column by the first maintaining part 51
511 embodiments being directly fixedly connected with the first connection sheet 3, mounting hole H and the first lug on the first pole connecting portion 31 connect
The mounting hole H of socket part 32 can be one.
In the secondary battery in accordance with the present invention, with reference to Figure 10, the first fuse part 33 in the first connection sheet 3 by opening up
Opening 331 is formed, and the both sides for 331 W in the width direction that are open are respectively provided with sub- fuse part 332.First maintaining part 51 may be used also
With the fixed column 511 across opening 331.
In the secondary battery in accordance with the present invention, with reference to Figure 11, the both sides of W are equipped with and lack the first fuse part 33 in the width direction
Mouth G.
In the secondary battery in accordance with the present invention, the overflow section product of the first fuse part 33 is less than the first pole connecting portion 31
With the first lug connecting portion 32 (pass through setting be open 331 or notch G), therefore, when the first connection sheet 3 passes through high current, the
One fuse part 33 can fuse quickly to cut off being electrically connected for the first lug 21 and the first pole 11 in time, prevent secondary cell hot
It is out of control.
In the secondary battery in accordance with the present invention, battery core 2 is multiple；Accordingly, with reference to Fig. 9 to Figure 11, the first lug connects
Socket part 32 has：The sub- connecting portion 321 of two the first lugs, L extends along its length, and the sub- connecting portion 321 of each first lug divides
It does not fix and is electrically connected with the first lug 21 of corresponding battery core 2；And the first lug subclass portion 322, in the width direction W extensions and
Both ends connect the sub- connecting portion 321 of two the first lugs respectively.First pole connecting portion 31 is located at two sub- connecting portions of the first lug
L extends between 321 and along its length.L extends and connects the first lug subclass portion 322 first fuse part 33 along its length
With the first pole connecting portion 31.First connection sheet 3 is generally planar.
In the secondary battery in accordance with the present invention, the extending direction and arrangement of the sub- connecting portion 321 of two the first lugs
(identical with the direction of the first pole connecting portion 31 extension, respectively positioned at the both sides of the first pole connecting portion 31) can increase battery core
The contact area of 2 the first lug 21 and the sub- connecting portion 321 of corresponding first lug, so as to increase area of passage.
In the secondary battery in accordance with the present invention, with reference to Fig. 4, the secondary cell further includes：Two insulation strips 6, respectively
It is arranged in the gap between the first pole connecting portion 31 and the sub- connecting portion 321 of corresponding first lug, and each insulation strip 6 is in thickness
Degree direction T on not less than the first connection sheet 3 connect with the first lug 21 surface (namely the first pole connecting portion 31 with
The opposite surface of the main body 23 of battery core 2).When the first lug 21 is long, W it may be more than above-mentioned gap and prolong in the width direction
The first pole connecting portion 31 is reached, and then the first lug 21 is caused directly to be contacted with the first pole connecting portion 31, causes first to melt
It fails in disconnected portion 33；And by setting insulation strip 6 in above-mentioned gap, and each insulation strip 6 connects in the thickness directiont not less than first
The surface being connect with the first lug 21 of contact pin 3, so insulation strip 6 can play the role of partition, prevent the first lug 21 with
First pole connecting portion 31 be electrically connected (if each insulation strip 6 in the thickness directiont with the first connection sheet 3 and the first lug 21
The surface of connection flushes, then insulation strip 6 can form the gap to avoid the first lug 21 and the first pole connecting portion 31
Side wall is electrically connected, and if each insulation strip 6 exceeds the table being connect with the first lug 21 of the first connection sheet 3 in the thickness directiont
Face can further avoid the first lug 21 and the surface opposite with the main body 23 of battery core 2 of the first pole connecting portion 31 from connecing
It touches).In addition supplement, above-mentioned " being not less than " and " exceeding " for thickness direction T shown in Fig. 4, in other words, secondary
After the practical molding of battery, each insulation strip 6 is flushed or is protruded to battery core 2 relative to the first connection sheet 3.
In the secondary battery in accordance with the present invention, with reference to Fig. 4, Fig. 9 and Figure 10, the secondary cell further includes：Insulation patch
Piece 7 is pasted onto on the surface opposite with battery core 2 (main body 23) of the first connection sheet 3, and at least covers the first pole connecting portion 31
The edge of W both sides in the width direction.When the first lug 21 is long, W it may be more than above-mentioned gap and extend in the width direction
To the corresponding edge of the first pole connecting portion 31 W in the width direction, and then the first lug 21 is caused directly to be connect with the first pole
Portion 31 contacts, and the first fuse part 33 is caused to fail；And insulating pad 7 at least covers the first pole connecting portion 31 W in the width direction
Both sides of the edge, it is possible to the first lug 21 and the first pole connecting portion 31 are separated, prevent the first lug 21 and the first pole
Column connecting portion 31 is electrically connected.
In the secondary battery in accordance with the present invention, with reference to Fig. 7 and Fig. 8, the first lug 21 has：Linkage section 211, outside with
First lug connecting portion 32 is fixedly connected；And bending segment 212, it bends and connects the main body 23 of battery core 2 and linkage section 211, and
Linkage section 211 is less than 120 ° with the angle that bending segment 212 is formed.
In the secondary battery in accordance with the present invention, with reference to Fig. 8, the angle that linkage section 211 is formed with bending segment 212 is 85 °
~95 °.At this point, the approximate through-thickness T extensions of bending segment 212, short circuit caused by can preventing when bending segment 212 is pressurized.
In the secondary battery in accordance with the present invention, with reference to Fig. 7, angle that linkage section 211 is formed with bending segment 212 is 0 °~
45°.At this point, 212 approximation of bending segment is folded back on linkage section 211,21 the space occupied of the first lug is effectively reduced, promotes two
Space availability ratio inside primary cell.
In the secondary battery in accordance with the present invention, with reference to Fig. 7 and Fig. 8, at least in linkage section 211 inside and battery core 2
The directly opposite bonding partially insulating cement S of main body 23.When head cover 1 and the housing (not shown) of receiving battery core 2 assemble, can squeeze
First lug 21, therefore the linkage section 211 for being easy to cause the first lug 21 (is particularly linkage section 211 and the main body 23 of battery core 2 is straight
Connect opposite part) it is in direct contact with the main body 23 of battery core 2 (with 21 opposite polarity pole piece of the first lug), cause short circuit；And
By setting insulating cement S, the security performance of secondary cell can be improved to avoid 2 short circuit of battery core.
In the secondary battery in accordance with the present invention, with reference to Fig. 7 and Fig. 8, preferably in 211 inside of linkage section and bending segment 212
Inside paste List insulating cement S.
In the secondary battery in accordance with the present invention, with reference to Fig. 7 and Fig. 8, the outside of bending segment 212 is pasted with insulating cement S.When
When head cover 1 and the housing (not shown) of receiving battery core 2 assemble, the first lug 21 is squeezed and bends, the outside of bending segment 212
It is easily contacted with housing, so as to cause short circuit；And by pasting insulating cement S in the outside of bending segment 212, it can be to avoid battery core 2
Short circuit improves the security performance of secondary cell.
In the secondary battery in accordance with the present invention, with reference to Fig. 4 to Fig. 8, the secondary cell further includes：Welding protection piece 8,
It is set on the first lug 21；By ultrasonic bonding by 211 and first pole of linkage section of welding protection piece 8, the first lug 21
Ear connecting portion 32 is fixed together.211 and first lug of linkage section that welding protection piece 8 can improve the first lug 21 connects
The bonding strength of socket part 32.The weldering that ultrasonic bonding is formed stamps Pasting insulation gummed paper.Insulation gummed paper, which can be fixed, to be welded
The metal fillings generated in journey prevents from entering inside battery core 2 into metal fillings, simultaneously, additionally it is possible to play insulating effect, prevent battery core
2 internal short-circuits.
In the secondary battery in accordance with the present invention, with reference to Fig. 4 and Fig. 5, the secondary cell of going back includes：Second connection sheet 4,
It is connected between the second lug 22 and the second pole 12.
In the secondary battery in accordance with the present invention, with reference to Fig. 4 and Fig. 5, the second connection sheet 4 has：Second pole connecting portion
41, it is electrically connected with the fixation of the second pole 12；And the second lug connecting portion 42, it is electrically connected with the second lug 22 fixation of battery core 2.
In the secondary battery in accordance with the present invention, with reference to Fig. 4 and Fig. 5, battery core 2 is multiple.Accordingly, the second lug connects
Portion 42 has：The sub- connecting portion 421 of two the second lugs, L extends along its length, and the sub- connecting portion 421 of each second lug is distinguished
It fixes and is electrically connected with the second lug 22 of corresponding battery core 2；And the second lug subclass portion 422, W extensions and two in the width direction
End connects the sub- connecting portion 421 of two the second lugs respectively.Second pole connecting portion 41 is located at the sub- connecting portion 421 of two the second lugs
Between, and L is extended in the second lug subclass portion 422 along its length.
In the secondary battery in accordance with the present invention, the extending direction and arrangement of the sub- connecting portion 421 of two the second lugs
(identical with the direction of the second pole connecting portion 41 extension, respectively positioned at the both sides of the second pole connecting portion 41) can increase battery core
The contact area of 2 the second lug 22 and the sub- connecting portion 421 of corresponding second lug, so as to increase area of passage.
In the secondary battery in accordance with the present invention, the secondary cell further includes：Welding protection piece 8 is set to the second pole
On ear 22；Welding protection piece 8, the second lug 22 and the sub- connecting portion 421 of the second lug are fixedly connected on by ultrasonic bonding
Together.The weldering that ultrasonic bonding is formed stamps Pasting insulation gummed paper.Insulation gummed paper can fix the gold generated in welding process
Belong to bits, prevent from entering and consider to be worth doing into inside battery core 2, simultaneously, additionally it is possible to play insulating effect, prevent 2 internal short-circuit of battery core.
In the secondary battery in accordance with the present invention, the first pole connecting portion 31 and the first pole 11 are consolidated by laser welding
Surely it links together, is fixed together the second pole connecting portion 41 and the second pole 12 by laser welding.Laser Welding
It connects the weldering to be formed and stamps Pasting insulation gummed paper.Insulation gummed paper can fix the metal fillings generated in welding process, prevent from entering
Bits enter inside battery core 2, simultaneously, additionally it is possible to play insulating effect, prevent 2 internal short-circuit of battery core.
Claims (10)
1. a kind of component for secondary cell, which is characterized in that including the first connection sheet (3) and insulation maintainance block (5)；
First connection sheet (3) has the first pole connecting portion (31), the first lug connecting portion (32) and is connected on the first pole
The first fuse part (33) between connecting portion (31) and the first lug connecting portion (32)；
Insulation maintainance block (5) both ends are fixedly connected respectively with the first pole connecting portion (31) and the first lug connecting portion (32)；When
After first fuse part (33) fusing, insulation maintainance block (5) can keep the first pole connecting portion (31) and the first lug connecting portion
(32) relative position is fixed.
2. the component according to claim 1 for secondary cell, which is characterized in that
The mounting hole (H) of perforation is equipped on first pole connecting portion (31) and the first lug connecting portion (32)；
Insulation maintainance block (5) includes：
First maintaining part (51) is set to the side of the first connection sheet (3) through-thickness (T), has corresponding with mounting hole (H)
Fixed column (511), fixed column (511) extends to the first connection sheet (3) through-thickness (T) across corresponding mounting hole (H)
Opposite side；
And
Second maintaining part (52) is set to the opposite side of the first connection sheet (3) through-thickness (T), with the first maintaining part (51)
The fixed column (511) for passing through corresponding mounting hole (H) be fixedly connected.
3. the component according to claim 2 for secondary cell, which is characterized in that the second maintaining part (52) passes through heat
It melts, be interference fitted, riveting, snapping connection, being bonded or grafting is fixedly connected with the fixed column (511) of the first maintaining part (51).
4. the component according to claim 1 for secondary cell, which is characterized in that
The mounting hole (H) of perforation is equipped on first pole connecting portion (31) and the first lug connecting portion (32)；
Insulation maintainance block (5) includes：
First maintaining part (51) is set to the side of the first connection sheet (3) through-thickness (T), has corresponding with mounting hole (H)
Fixed column (511), fixed column (511) penetrates corresponding mounting hole (H) and is fixedly connected with the first connection sheet (3).
5. the component according to claim 4 for secondary cell, which is characterized in that fixed column (511) passes through hot melt, mistake
Be full of cooperation, riveting or bonding be directly fixedly connected with the first lug connecting portion (32).
6. the component for secondary cell according to claim 2 or 4, which is characterized in that
Mounting hole (H) is waist hole；Or
Mounting hole (H) is circular hole, and the mounting hole (H) at least two on the first pole connecting portion (31), the first lug connect
The mounting hole (H) at least two in portion (32).
7. the component according to claim 1 for secondary cell, which is characterized in that
First fuse part (33) is formed by opening up opening (331) in the first connection sheet (3), and is open (331) along width
The both sides in direction (W) are respectively provided with sub- fuse part (332)；Or
First fuse part (33) in the width direction (W) both sides be equipped with notch (G).
8. the component according to claim 1 for secondary cell, which is characterized in that
First lug connecting portion (32) has：Two sub- connecting portions of the first lug (321), along its length (L) extension；And the
One lug subclass portion (322), in the width direction (W) extension and both ends connect two sub- connecting portions of the first lug (321) respectively；
(L) extends first pole connecting portion (31) between two sub- connecting portions of the first lug (321) and along its length；
(L) extends and connects the first lug subclass portion (322) and connected with the first pole first fuse part (33) along its length
Portion (31).
9. the component according to claim 8 for secondary cell, which is characterized in that the component for secondary cell
It further includes：Insulating pad (7), is pasted onto on the surface of the first connection sheet (3), and at least covers first pole connecting portion (31) edge
The edge of width direction (W) both sides.
10. the component according to claim 8 for secondary cell, which is characterized in that the first connection sheet (3) is generally flat
Planar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710823060.7A CN108155335B (en) | 2016-12-02 | 2016-12-02 | Assembly for secondary battery |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611099270.8A CN108155334B (en) | 2016-12-02 | 2016-12-02 | Secondary battery |
| CN201710823060.7A CN108155335B (en) | 2016-12-02 | 2016-12-02 | Assembly for secondary battery |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611099270.8A Division CN108155334B (en) | 2016-12-02 | 2016-12-02 | Secondary battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108155335A true CN108155335A (en) | 2018-06-12 |
| CN108155335B CN108155335B (en) | 2021-02-12 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110033257.7A Active CN112886154B (en) | 2016-12-02 | 2016-12-02 | Secondary battery and assembly for secondary battery |
| CN201611099270.8A Active CN108155334B (en) | 2016-12-02 | 2016-12-02 | Secondary battery |
| CN201710823060.7A Active CN108155335B (en) | 2016-12-02 | 2016-12-02 | Assembly for secondary battery |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110033257.7A Active CN112886154B (en) | 2016-12-02 | 2016-12-02 | Secondary battery and assembly for secondary battery |
| CN201611099270.8A Active CN108155334B (en) | 2016-12-02 | 2016-12-02 | Secondary battery |
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| Country | Link |
|---|---|
| CN (3) | CN112886154B (en) |
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| CN113363684A (en) * | 2021-05-31 | 2021-09-07 | 东莞新能安科技有限公司 | Battery pack and electric equipment |
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| CN111755657B (en) * | 2019-03-29 | 2022-02-15 | 宁德新能源科技有限公司 | Electrode assembly |
| CN111697170B (en) * | 2020-06-23 | 2023-10-31 | 欣旺达动力科技股份有限公司 | Bi-pass single battery, assembling method thereof and battery pack |
| CN112787047A (en) * | 2021-01-29 | 2021-05-11 | 常州瑞德丰精密技术有限公司 | Switching piece, secondary battery and battery module |
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| CN116111245A (en) * | 2023-02-17 | 2023-05-12 | 厦门海辰储能科技股份有限公司 | End cover assembly, energy storage device and electric equipment |
| CN116111245B (en) * | 2023-02-17 | 2024-06-25 | 厦门海辰储能科技股份有限公司 | End cover assembly, energy storage device and electric equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112886154B (en) | 2023-08-11 |
| CN112886154A (en) | 2021-06-01 |
| CN108155334B (en) | 2024-01-23 |
| CN108155334A (en) | 2018-06-12 |
| CN108155335B (en) | 2021-02-12 |
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