CN209087917U - Secondary cell - Google Patents
Secondary cell Download PDFInfo
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- CN209087917U CN209087917U CN201821923879.7U CN201821923879U CN209087917U CN 209087917 U CN209087917 U CN 209087917U CN 201821923879 U CN201821923879 U CN 201821923879U CN 209087917 U CN209087917 U CN 209087917U
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- connecting portion
- guide groove
- secondary cell
- cover plate
- matrix
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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
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Abstract
The utility model relates to a kind of secondary cells, comprising: shell；Electrode assembly, is set to the accommodating chamber of shell, and electrode assembly includes main part；Cap assembly, including lamina tecti and electrode terminal, lamina tecti has the terminal hole penetrated through along short transverse, electrode terminal includes matrix and cover plate, matrix covers terminal hole, it is provided with the first guide groove for extending along short transverse and being connected to accommodating chamber on matrix, the second guide groove for intersecting setting with the first guide groove is formed between matrix and cover plate；Conduct piece has the first connecting portion and second connecting portion of intersection setting, and first connecting portion connect with main part and extends in the first guide groove, and second connecting portion is located at the second guide groove and is resisted against matrix, and cover plate is located at the side of the separate electrode assembly of second connecting portion.Secondary cell provided by the embodiment of the utility model can be avoided the metal fillings generated during electrode assembly is connect with electrode terminal and splash on electrode assembly, it is effective guarantee secondary cell using safe.
Description
Technical field
The utility model relates to energy storage device technical fields, more particularly to a kind of secondary cell.
Background technique
Currently, new-energy automobile is at home or even the world is all being widely popularized, with to the requirement of secondary cell energy density
It is higher and higher, the problem of safety of secondary cell also increasingly becomes challenge, especially nickelic positive electrode, it is easy to short inside
Cause secondary cell out of control in the case where road.
However, the manufacture craft of hard shell secondary cell in the prior art, most of is all electrode assembly and top cover group
Electrode terminal on part realize by welding between electrical connection.Although this kind of connection type can satisfy electrode
It is electrically connected requirement between component and electrode terminal, but also accordingly there is safety problem.The reason is that, electrode assembly and electrode tip
Many metal fillings splashes can be generated between son during laser welding metal, are very easy to be splashed to inside electrode assembly
Or surface, cleaning is extremely difficult, to remain in inside secondary cell.It is completed to secondary cell and in the mistake of charge and discharge
Cheng Zhong, battery core expansion, the metal fillings remained in inside electrode assembly, which may puncture battery core isolation film, causes positive and negative anodes short-circuit, or
Person's metal fillings, which punctures the insulating film between electrode assembly and shell, leads to short circuit, so as to cause safety accidents such as kindlings, influences two
Primary cell using safe.
Therefore, a kind of new secondary cell is needed.
Utility model content
The utility model embodiment provides a kind of secondary cell, can be avoided the process that electrode assembly is connect with electrode terminal
The metal fillings of middle generation splashes on electrode assembly, so can effectively ensure that secondary cell using safe.
On the one hand, a kind of secondary cell is proposed according to the utility model embodiment, comprising: shell, have accommodating chamber with
And the opening being connected in short transverse with accommodating chamber；Electrode assembly, is set to accommodating chamber, and electrode assembly includes main part；Top cover
Component, including lamina tecti and electrode terminal, lamina tecti covering are open and have the terminal hole penetrated through along short transverse, electrode terminal
Including matrix and cover plate, matrix covers terminal hole, and extend along short transverse and be connected to accommodating chamber the is provided on matrix
One guide groove is formed with the second guide groove for intersecting setting with the first guide groove between matrix and cover plate；Conduct piece, be connected to main part and
Between matrix, conduct piece have intersection setting first connecting portion and second connecting portion, first connecting portion connect with main part and
It extends in the first guide groove, second connecting portion is located at the second guide groove and is resisted against matrix, and cover plate is located at the separate of second connecting portion
The side of electrode assembly, cover plate are connected to matrix and the second guide groove of sealing.
According to the one aspect of the utility model embodiment, the end of the separate accommodating chamber of matrix is provided with recess portion, cover plate
It is oppositely arranged with recess portion and is tightly connected with matrix, the side wall on surface and recess portion of the cover plate towards recess portion is enclosed second jointly
Guide groove.
According to the one aspect of the utility model embodiment, the end of the separate accommodating chamber of matrix is further provided with circular
The mounting groove of recess portion, cover plate are set to mounting groove, and in the height direction, the thickness of cover plate is less than or equal to the depth of mounting groove.
According to the one aspect of the utility model embodiment, cap assembly further comprises the weldering being set in the second guide groove
Screening glass is connect, welds screening glass between second connecting portion and cover plate, second connecting portion and welding screening glass pass through welding
Mode is fixed on matrix.
According to the one aspect of the utility model embodiment, first connecting portion is directly connected in main part, first connecting portion,
Second connecting portion and main part are an integral structure.
According to the one aspect of the utility model embodiment, conduct piece includes contact conductor and switching piece, contact conductor and
Switching piece is split type structure, and switching piece is collectively formed in first connecting portion and second connecting portion, and switching piece is connected to contact conductor
Between matrix, contact conductor is directly connected in main part, and contact conductor is an integral structure with main part.
According to the one aspect of the utility model embodiment, switching piece includes two first connecting portions and two second companies
Socket part, two first connecting portions are connect with contact conductor, and two second connecting portions extend towards the direction being located remotely from each other.
According to the one aspect of the utility model embodiment, first connecting portion and second connecting portion are sheet-like structure.
According to the one aspect of the utility model embodiment, conduct piece further includes connection assist, connection assist with turn
Contact pin is oppositely arranged and grips contact conductor jointly.
According to the one aspect of the utility model embodiment, connection assist is opposite with first connecting portion in thickness direction
The first connecting portion of the sheet-like structure of setting, connection assist and switching piece grips contact conductor jointly.
According to secondary cell provided by the embodiment of the utility model comprising shell, electrode assembly, cap assembly and lead
Electric part, electrode assembly are set in accommodating chamber, and cap assembly includes lamina tecti and electrode terminal, and electrode terminal includes matrix and lid
Piece is provided with the first guide groove for extending along short transverse and be connected to accommodating chamber on matrix, be formed between matrix and cover plate and
Second guide groove of the first guide groove intersection setting, conduct piece include the first connecting portion and second connecting portion of intersection setting, and first connects
The main part of socket part and electrode assembly connects and extends to the first guide groove, and second connecting portion is located in the second guide groove and is resisted against base
Body, cover plate is connected to matrix and the second guide groove of sealing, the main part of electrode assembly can be electrically connected by conduct piece and electrode terminal
It connects, meets and be electrically connected requirement between electrode assembly and electrode terminal.Simultaneously because the second connecting portion of conduct piece is located at second
In guide groove, even if connecting it by the way of welding with electrode terminal, it also can effectively avoid generating during connection
Metal fillings splash on electrode assembly, and then can effectively ensure that secondary cell using safe.
Detailed description of the invention
The feature, advantage and technical effect of the utility model exemplary embodiment described below with reference to the accompanying drawings.
Fig. 1 is the structural schematic diagram of the secondary cell of the utility model one embodiment；
Fig. 2 is the exploded view of the secondary cell of the utility model one embodiment；
Fig. 3 is the top view of the secondary cell of the utility model one embodiment；
Fig. 4 is in Fig. 3 along the cross-sectional view in the direction A-A；
Fig. 5 is in Fig. 3 along the cross-sectional view in the direction B-B；
Fig. 6 is enlarged drawing at C in Fig. 5；
Fig. 7 is the schematic cross-sectional view of the secondary cell of the utility model another embodiment；
Fig. 8 is enlarged drawing at D in Fig. 7；
Fig. 9 is the schematic cross-sectional view of the secondary cell of the utility model another embodiment；
Enlarged drawing at E in Figure 10 Fig. 9.
Wherein:
X- short transverse；Y- thickness direction；
10- shell；11- accommodating chamber；12- opening；
21- main part；
30- cap assembly；
31- lamina tecti；311- terminal hole；The end face 312-；
32- electrode terminal；321- matrix；321a- recess portion；321b- mounting groove；322- cover plate；The first guide groove of 323-；324-
Second guide groove；
33- screening glass；
34- insulator spacer；
40- conduct piece；40a- first connecting portion；40b- second connecting portion；
41- switching piece；
42- contact conductor；
43- connection assist.
In the accompanying drawings, identical component uses identical appended drawing reference.The attached drawing is not drawn according to the actual ratio.
Specific embodiment
The feature and exemplary embodiment of the various aspects of the utility model is described more fully below.It is retouched in detail in following
In stating, many details are proposed, in order to provide the comprehensive understanding to the utility model.But for those skilled in the art
It will be apparent that the utility model can be implemented in the case where not needing some details in these details for member.
Below the description of embodiment is used for the purpose of providing by showing the example of the utility model to the more preferable of the utility model
Understanding.In the the accompanying drawings and the following description, at least part of known features and technology are not shown, to avoid to this reality
Unnecessary obscure is caused with novel；Also, for clarity, may be exaggerated the size of part-structure.In addition, hereinafter being retouched
Feature, the structure or characteristic stated can be incorporated in any suitable manner in one or more embodiments.
The noun of locality of middle appearance described below is direction shown in figure, is not the secondary cell to the utility model
Specific structure be defined.In the description of the present invention, it should also be noted that, unless otherwise specific regulation and limit
Fixed, term " installation ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be directly connected, can also be indirectly connected.For the ordinary skill in the art, visual specific
Situation understands the concrete meaning of above-mentioned term in the present invention.
The utility model in order to better understand, below with reference to Fig. 1 to Figure 10 according to the secondary of the utility model embodiment
Battery is described in detail.
The structural representation of the secondary cell of the utility model one embodiment is shown also referring to Fig. 1 to Fig. 6, Fig. 1
Figure, Fig. 2 shows the exploded view of the secondary cell of the utility model one embodiment, Fig. 3 shows one reality of the utility model
The top view of the secondary cell of example is applied, Fig. 4 is shown along the cross-sectional view in the direction A-A in Fig. 3, and Fig. 5 is shown in Fig. 3 along the side B-B
To cross-sectional view, Fig. 6 shows in Fig. 5 enlarged drawing at C.
The utility model provides a kind of secondary cell, and secondary cell generallys include shell 10, electrode assembly, cap assembly 30
And conduct piece 40.Shell 10 is formed the box-like of rectangle, and shell 10 has accommodating chamber 11 and in short transverse X and receiving
The opening 12 that chamber 11 is connected to.
Electrode assembly is set to accommodating chamber 11, and electrode assembly includes main part 21, and main part 21 is by the first pole piece, the second electricity
Pole and partition are stacked or are wound together and formed.Wherein, partition is the insulation between the first pole piece and second electrode
Body.In the present embodiment, illustratively using the first pole piece as positive plate, second electrode be negative electrode tab for be illustrated.Equally
Ground, in other examples, the first pole piece can also be negative electrode tab, and second electrode is positive plate.In addition, positive plate is active
Substance can be applied on the coating area of positive plate, and negative electrode tab active material can be applied on the coating area of negative electrode tab.?
When it is implemented, the quantity of electrode assembly can be one, naturally it is also possible to for two or more.
Cap assembly 30 is used for seal casinghousing 10, and electrode assembly is sealed in shell 10.Cap assembly 30 includes top
Cover board 31 and electrode terminal 32, the covering of lamina tecti 31 opening 12, lamina tecti 31 is in lamellar and have and penetrate through along short transverse X
Terminal hole 311, the quantity of electrode terminal 32 are two, can be positive electrode terminal and negative electrode terminal, each electrode
Terminal 32 may include matrix 321 and cover plate 322, and the shape of matrix 321 and the shape of terminal hole 311 match and capped end
Sub-aperture 311 is provided with the first guide groove 323 for extending along short transverse X and being connected to the accommodating chamber of shell 10 11 on matrix 321,
The second guide groove 324 for intersecting setting with the first guide groove 323, optionally, the first guide groove are formed between matrix 321 and cover plate 322
323 are mutually perpendicular to the second guide groove 324.
Conduct piece 40 is connected between main part 21 and matrix 321, and conduct piece 40 has the first connecting portion of intersection setting
40a and second connecting portion 40b, first connecting portion 40a connect with main part 21 and extend in the first guide groove 323, the second connection
Portion 40b is located at the second guide groove 324 and is resisted against matrix 321, and cover plate 322 is located at the separate electrode assembly of second connecting portion 40b
Side, cover plate 322 are connected to matrix 321 and the second guide groove 324 of sealing.In the specific implementation, second connecting portion 40b and matrix
It can be connected by welding manner between 321 and cover plate 322, the mode for being specifically as follows laser welding is connected with each other.
The main part 21 of secondary cell provided by the embodiment of the utility model, electrode assembly can pass through second connecting portion
The matrix 321 and cover plate 322 of 40b and electrode terminal 32 are electrically connected to each other, due to being formed between matrix 321 and cover plate 322
There is the second guide groove 324 for accommodating second connecting portion 40b, so that even if the second connecting portion 40b of conduct piece 40 and matrix 321
And connected by the way of the welding of laser between cover plate 322, the cell wall for being enclosed the second guide groove 324 can effectively stop
The metal fillings that generation is welded between conduct piece 40 and matrix 321 and cover plate 322 is splashed on electrode assembly, so can be avoided because
The presence of metal fillings cause secondary cell inside occur short circuit, guarantee secondary cell using safe.
In the specific implementation, the second guide groove 324 can use different structure type, as long as second connecting portion can be accommodated
40b and limit welding generate metal fillings be splashed on electrode assembly.Please continue to refer to Fig. 3 to Fig. 6, some optional
In embodiment, matrix 321 is provided with recess portion 321a far from the end of accommodating chamber 11, and cover plate 322 and recess portion 321a are oppositely arranged simultaneously
It is tightly connected with matrix 321, the side wall of surface of the cover plate 322 towards recess portion 321a and recess portion 321a are enclosed second jointly and lead
Slot 324, the second guide groove 324 can save the occupied space of secondary cell using above-mentioned molding mode, cut it is easy to process, convenient for
The intersection of first guide groove 323 is arranged and is interconnected.
In order to guarantee conduct piece 40 using safe, cap assembly 30 further comprise be set to it is exhausted in terminal hole 311
Edge separator 34, insulator spacer 34 extend to electrode terminal 32 in one end of short transverse X, and the other end extends at least partially into
End face 312 of the lamina tecti 31 towards electrode assembly is simultaneously bonded to each other with the end face 312.
As an alternative embodiment, the end of the separate accommodating chamber 11 of matrix 321 is further provided with around recessed
The mounting groove 321b of portion 321a, cover plate 322 are set to mounting groove 321b, on short transverse X, the thickness of cover plate 322 be less than or
Equal to the depth of mounting groove 321b.By the way that mounting groove 321b is arranged, cover plate 322 can be limited, convenient for the peace of cover plate 322
It is filled with and the connection between matrix 321.Meanwhile it limiting thickness of the cover plate 322 on short transverse X and being less than or equal to mounting groove
The depth of 321b, so that multiple secondary cells of the utility model embodiment connect to form battery by connectors such as busbar connectors
When mould group, it can be avoided cover plate 322 and interference generated to the connection between busbar connector and matrix 321, after guaranteeing secondary cell in groups
The reliability of the battery modules of formation.
In the specific implementation, different structure type can be used from the conduct piece 40 of each electrode terminal 32 connection,
In some optional embodiments, the quantity of the first connecting portion 40a and second connecting portion 40b of each conduct piece 40 can be one
It is a, and first connecting portion 40a can be directly connected to main part 21, first connecting portion 40a, second connecting portion 40b and master
Body portion 21 is an integral structure.I.e. in the specific implementation, the conduct piece 40 being connect with anode electrode terminal on cap assembly 30,
The part bending that first connecting portion 40a and second connecting portion 40b can be extended by the coating area of positive plate is formed.And and top cover
The conduct piece 40 that negative electrode terminal connects on component 30, first connecting portion 40a and second connecting portion 40b can be by negative electrode tabs
The part bending extended of coating area formed.Being electrically connected between main part 21 and electrode terminal 32 can either be met to want
It asks, while enabling to be reliably connected between conduct piece 40 and main part 21.
As an alternative embodiment, cap assembly 30 further comprises the welding being set in the second guide groove 324
Screening glass 33 welds screening glass 33 between second connecting portion 40b and cover plate 322, second connecting portion 40b and welding protection
Piece 33 is fixed on matrix 321 by welding manner.Screening glass 33 is welded by setting, can effectively avoid second connecting portion
There is the problem of by burn-through or rosin joint in 40b, guarantees second connecting portion 40b and being electrically connected between matrix 321 and cover plate 322
Reliability.
The section view of the secondary cell of the utility model another embodiment is shown also referring to figure Fig. 7 and Fig. 8, Fig. 7
Structural schematic diagram, Fig. 8 show enlarged drawing at the D in Fig. 7.
It is understood that the structure type of the conduct piece 40 of the various embodiments described above is a kind of optional embodiment,
But not limited to this, in some other examples, as shown in Figures 7 and 8, conduct piece 40 also may include contact conductor 42 and turn
Contact pin 41, contact conductor 42 and switching piece 41 are split type structure, and first connecting portion 40a and second connecting portion 40b are collectively formed
Switching piece 41, switching piece 41 are connected between contact conductor 42 and matrix 321, and contact conductor 42 is directly connected in main part 21 simultaneously
And contact conductor 42 is an integral structure with main part 21, the conduct piece 40 connecting with anode electrode terminal on cap assembly 30,
The part bending that its contact conductor 42 can be extended by the coating area of positive plate is formed, the electrode with cathode on cap assembly 30
The conduct piece 40 that terminal 32 connects, contact conductor 42 equally can be by part bending shapes that the coating area of negative electrode tab is extended
At.First connecting portion 40a and second connecting portion 40b can be sheet-like structure and be an integral structure.
Please continue to refer to Fig. 7, Fig. 8, in order to meet inflow-rate of water turbine demand, in some optional examples, each switching piece 41
Connect with contact conductor 42 including two first connecting portion 40a and two second connecting portions 40b, two first connecting portion 40a
It connects, optionally, two first connecting portion 40a are arranged in parallel, and two second connecting portion 40b extend towards the direction being located remotely from each other
And it is respectively positioned in the second guide groove 324.
Fig. 9 shows the schematic cross-sectional view of the secondary cell of the utility model another embodiment, and Figure 10 is in Fig. 9
Enlarged drawing at E.
It is understood that the conduct piece 40 of secondary cell provided by the embodiment of the utility model include contact conductor 42 and
When switching piece 41, the quantity of first connecting portion 40a included by each switching piece 41 and second connecting portion 40b are not limited to two
A, as shown in Figure 9, Figure 10, the quantity of first connecting portion 40a included by each switching piece 41 and second connecting portion 40b can also be with
It is one, at this point, optionally, conduct piece 40 is also for the ease of connecting between first connecting portion 40a and corresponding contact conductor 42
Including connection assist 43, connection assist 43 and switching piece 41 are oppositely arranged and grip jointly contact conductor 42, so as to
When switching piece 41 and contact conductor 42 are welded to connect using modes such as ultrasonic waves, meet and the fixed of contact conductor 42 is required,
And contact conductor 42 can be played a certain protective role, avoid contact conductor 42 is clamped from destroying or by burn-through.In turn
Meet the reliability being electrically connected between contact conductor 42 and contact conductor 42.
In the specific implementation, connection assist 43 can use different structure type, draw as long as can satisfy to electrode
Gripping for line 42 is required with protection, and in some optional examples, connection assist 43 can be in thickness direction Y
The sheet-like structure being oppositely arranged with first connecting portion 40a.Optionally, connection assist 43 and first connecting portion 40a can phase
It is mutually arranged in parallel, the first connecting portion 40a of connection assist 43 and switching piece 41 grips contact conductor 42 jointly.Auxiliary connects
Fitting 43 uses above-mentioned form, and structure is simple, and can be improved the first connecting portion 40a of contact conductor 42 Yu corresponding switching piece 41
Between the reliability that is electrically connected.
To sum up, secondary cell provided by the embodiment of the utility model, because it includes shell 10, electrode assembly, cap assembly
30 and conduct piece 40, the electrode terminal 32 of cap assembly 30 includes matrix 321 and cover plate 322, also, is arranged on matrix 321
There are the first guide groove 323 for extending along short transverse X and being connected to the accommodating chamber of shell 10 11, shape between matrix 321 and cover plate 322
Second guide groove 324 of the intersection setting of the first guide groove of Cheng Youyu 323, and conduct piece 40 includes the first connecting portion 40a of intersection setting
And the main part 21 of second connecting portion 40b, first connecting portion 40a and electrode assembly connects and extends to the first guide groove 323, second
Interconnecting piece 40b is located in the second guide groove 324 and is resisted against matrix 321, and cover plate 322 is connected to matrix 321 and the second guide groove of sealing
324, the main part 21 of electrode assembly is electrically connected by conduct piece 40 with electrode terminal 32, electrode assembly and electricity are met
Electrical connection requirement between extreme son 32.Simultaneously because the second connecting portion 40b of conduct piece 40 is located in the second guide groove 324, make
Even if it is connect by the way of welding with electrode terminal 32, the metal fillings generated during connection also can be effectively avoided
Splash on electrode assembly, so can effectively ensure that secondary cell using safe, use easy to spread.
Although the present utility model has been described by reference to the preferred embodiments, but in the model for not departing from the utility model
In the case where enclosing, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as not depositing
In structural conflict, items technical characteristic mentioned in the various embodiments be can be combined in any way.The utility model
It is not limited to specific embodiment disclosed herein, but is included all technical solutions falling within the scope of the claims.
Claims (10)
1. a kind of secondary cell characterized by comprising
Shell, with accommodating chamber and the opening being connected in short transverse with the accommodating chamber；
Electrode assembly, is set to the accommodating chamber, and the electrode assembly includes main part；
Cap assembly, including lamina tecti and electrode terminal, the lamina tecti covering is described to be open and has along the short transverse
The terminal hole of perforation, the electrode terminal include matrix and cover plate, and described matrix covers the terminal hole, sets in described matrix
Be equipped with and extend along the short transverse and the first guide groove for be connected to the accommodating chamber, be formed between described matrix and cover plate and
Second guide groove of the first guide groove intersection setting；
Conduct piece is connected between the main part and described matrix, and the conduct piece has the first connecting portion of intersection setting
And second connecting portion, the first connecting portion connect with the main part and extend in first guide groove, described second connects
Socket part is located at second guide groove and is resisted against described matrix, and the cover plate is located at the separate electrode of the second connecting portion
The side of component, the cover plate are connected to described matrix and sealing second guide groove.
2. secondary cell according to claim 1, which is characterized in that the end far from the accommodating chamber of described matrix is set
It is equipped with recess portion, the cover plate and the recess portion are oppositely arranged and are tightly connected with described matrix, and the cover plate is towards the recess portion
Surface and the side wall of the recess portion be enclosed second guide groove jointly.
3. secondary cell according to claim 2, which is characterized in that the end far from the accommodating chamber of described matrix
Portion is further provided with the mounting groove around the recess portion, and the cover plate is set to the mounting groove, in the short transverse,
The thickness of the cover plate is less than or equal to the depth of the mounting groove.
4. secondary cell according to claim 1, which is characterized in that the cap assembly further comprise be set to it is described
Welding screening glass in second guide groove, the welding screening glass is between the second connecting portion and the cover plate, and described
Two interconnecting pieces and the welding screening glass are fixed on described matrix by welding manner.
5. secondary cell according to any one of claims 1 to 4, which is characterized in that the first connecting portion directly connects
It is connected to the main part, the first connecting portion, the second connecting portion and the main part are an integral structure.
6. secondary cell according to any one of claims 1 to 4, which is characterized in that the conduct piece includes that electrode draws
Line and switching piece, the contact conductor and the switching piece are split type structure, the first connecting portion and second connection
The switching piece is collectively formed in portion, and the switching piece is connected between the contact conductor and described matrix, the contact conductor
It is directly connected in the main part, the contact conductor is an integral structure with the main part.
7. secondary cell according to claim 6, which is characterized in that the switching piece includes two first connecting portions
And two second connecting portions, two first connecting portions are connect with the contact conductor, two described second connect
Socket part extends towards the direction being located remotely from each other.
8. secondary cell according to claim 6, which is characterized in that the first connecting portion and the second connecting portion are equal
For sheet-like structure.
9. secondary cell according to claim 6, which is characterized in that the conduct piece further includes connection assist, described
Connection assist and the switching piece are oppositely arranged and grip the contact conductor jointly.
10. secondary cell according to claim 9, which is characterized in that the connection assist is in thickness direction and institute
The sheet-like structure that first connecting portion is oppositely arranged is stated, the first connecting portion of the connection assist and the switching piece is total
It is same to grip the contact conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821923879.7U CN209087917U (en) | 2018-11-21 | 2018-11-21 | Secondary cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821923879.7U CN209087917U (en) | 2018-11-21 | 2018-11-21 | Secondary cell |
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| CN209087917U true CN209087917U (en) | 2019-07-09 |
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| WO2021068436A1 (en) * | 2019-10-10 | 2021-04-15 | 宁德新能源科技有限公司 | Battery casing assembly and battery having the battery casing assembly |
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| WO2022226965A1 (en) * | 2021-04-30 | 2022-11-03 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, power-consuming device, and manufacturing method and device for battery |
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| JP7477604B2 (en) | 2019-10-15 | 2024-05-01 | 寧徳時代新能源科技股▲分▼有限公司 | Secondary battery, battery module, battery pack, device and manufacturing method |
| JP2022550613A (en) * | 2019-10-15 | 2022-12-02 | 寧徳時代新能源科技股▲分▼有限公司 | SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, APPARATUS AND MANUFACTURING METHOD |
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| KR102549509B1 (en) | 2019-10-15 | 2023-06-30 | 컨템포러리 엠퍼렉스 테크놀로지 씨오., 리미티드 | Secondary battery, battery module, battery pack, device and manufacturing method thereof |
| US11652262B2 (en) | 2019-12-31 | 2023-05-16 | Contemporary Amperex Technology Co., Limited | Battery module, battery pack, and device |
| WO2021135463A1 (en) * | 2019-12-31 | 2021-07-08 | 宁德时代新能源科技股份有限公司 | Battery module, battery pack, and apparatus |
| EP4235919A3 (en) * | 2021-04-30 | 2023-12-27 | Contemporary Amperex Technology Co., Limited | Battery cell, battery, power consumption device, and battery manufacturing method and device |
| CN116250129A (en) * | 2021-04-30 | 2023-06-09 | 宁德时代新能源科技股份有限公司 | Battery monomer, battery, electric equipment and manufacturing method and equipment of battery |
| WO2022226965A1 (en) * | 2021-04-30 | 2022-11-03 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, power-consuming device, and manufacturing method and device for battery |
| WO2024065146A1 (en) * | 2022-09-27 | 2024-04-04 | 宁德时代新能源科技股份有限公司 | Battery cell, battery cell production method, battery and electric device |
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