CN209312879U - A kind of power battery switching chip architecture and power battery - Google Patents
A kind of power battery switching chip architecture and power battery Download PDFInfo
- Publication number
- CN209312879U CN209312879U CN201822053805.9U CN201822053805U CN209312879U CN 209312879 U CN209312879 U CN 209312879U CN 201822053805 U CN201822053805 U CN 201822053805U CN 209312879 U CN209312879 U CN 209312879U
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- power battery
- pole
- chip architecture
- battery
- weld part
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- 238000003466 welding Methods 0.000 claims abstract description 42
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 238000005452 bending Methods 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 11
- 239000003792 electrolyte Substances 0.000 claims description 9
- 239000002356 single layer Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 239000002893 slag Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Classifications
-
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model belongs to power battery technology field, more particularly to a kind of power battery switching chip architecture, including the switching piece ontology for connecting top cover pole and battery pole ear, the switching piece ontology is sequentially stacked by N layers of sheet metal and is compounded to form, N >=2, the switching piece ontology includes tab welding portion and the pole weld part that is extended outward to form by the one end in tab welding portion, and the pole weld part can carry out the bending of α angle, 0≤α≤180 ° with respect to tab weld part.The utility model by using multiple superposed switching chip architecture, pole weld part can be made to carry out certain angle bending with respect to tab weld part, ultrasonic bond after the welding manner of existing top cover pole and cell polar ear can be made to become first Laser Welding from Laser Welding after first ultrasonic bond, prevent to introduce Laser Welding welding slag in battery, prevents internal short-circuit of battery；The high surface area of the switching chip architecture of multiple superposed is conducive to radiate simultaneously, can be improved heat dissipation performance when battery uses, promotes battery quality.
Description
Technical field
The utility model, which belongs to power battery technology field more particularly to a kind of power battery switching chip architecture and uses, to be somebody's turn to do
The power battery of switching piece.
Background technique
With the development of modern society and the enhancing of people's environmental consciousness, more and more equipment selections are with lithium ion battery
As power supply, such as mobile phone, laptop, electric tool and electric car, this is the application and development of lithium ion battery
Provide wide space.Wherein, lithium ion battery used in electric tool and electric car etc. is commonly referred to as power electric
Pond.
Power battery generally comprises core, electrolyte, the battery case for accommodating core and electrolyte and is assemblied in battery case
Top cover on body, wherein power battery uses limit design of cover, which will roll up to pursue higher energy density
When core is fitted into shell, need first to carry out ultrasonic bond to weld together core and switching piece, then by Laser Welding by switching piece and
Top cover welds together.Currently used laser welding mode has the characteristics of power is high, firm welding, but in high power welding
It will lead to and melted at copper/aluminium switching piece solder joint, form bead and splash, such as cleaning is not clean, can make to exist in the subsequent use of battery core
The security risks such as short circuit.In addition, switching piece can be first welded on top cover by traditional folding tab welding mode, then by switching piece and
Core welds together, although the welding slag that this method can avoid positive Laser Welding is introduced into inside battery, the disadvantage is that folding tab
Structure can occupy excessive inside battery space, reduce battery core capacity.
Utility model content
The purpose of this utility model is that: in view of the deficiencies of the prior art, and a kind of power battery switching chip architecture is provided,
Laser Welding after first ultrasonic bond is needed to solve the problems, such as existing switching piece in welding and is easy to appear welding slag, avoids introducing in battery core
Laser Welding welding slag causes internal short-circuit of battery.
To achieve the above objectives, the present invention adopts the following technical solutions:
A kind of power battery switching chip architecture, including the switching piece ontology for connecting top cover pole and battery pole ear, institute
State switching piece ontology and be sequentially stacked by N layers of sheet metal and is compounded to form, N >=2, the switching piece ontology include tab welding portion and by
The pole weld part that the one end in tab welding portion extends outward to form, and the pole weld part can be carried out with respect to tab weld part
The bending of α angle, 0≤α≤180 °.
As a kind of preferred embodiment of power battery switching chip architecture described in the utility model, the bending angle α is
80~100 °.
As a kind of preferred embodiment of power battery switching chip architecture described in the utility model, the sheet metal number of plies N
It is 5~50 layers.
As a kind of preferred embodiment of power battery switching chip architecture described in the utility model, the thickness of single-layer metal piece
For 0.02~0.5mm.
As a kind of preferred embodiment of power battery switching chip architecture described in the utility model, N layers of metal film stack are postponed
Overall thickness be 0.1~25mm.
As a kind of preferred embodiment of power battery switching chip architecture described in the utility model, the switching piece ontology is whole
Body is in " mountain " type structure.
As a kind of preferred embodiment of power battery switching chip architecture described in the utility model, the tab welding portion with
Insurance hole is provided between the pole weld part.
As a kind of preferred embodiment of power battery switching chip architecture described in the utility model, the tab welding portion is set
It is equipped with fixation hole.
As a kind of preferred embodiment of power battery switching chip architecture described in the utility model, the switching piece is anode
Switching piece or cathode switching piece.
As a kind of preferred embodiment of power battery switching chip architecture described in the utility model, the switching piece turns for aluminium
Contact pin, copper switching piece or alloy switching piece.
In addition, the utility model also provides a kind of power battery, including battery core, electrolyte, receiving battery core and electrolyte
Battery case and the top cover being sealingly mounted on battery case, cell polar ear are electrically connected by switching piece with top cover pole, institute
Stating switching piece is switching chip architecture described in any of the above-described section.
The chip architecture the utility model has the beneficial effects that: a kind of power battery provided by the utility model is transferred, including
For connecting the switching piece ontology of top cover pole and battery pole ear, the switching piece ontology is sequentially stacked compound by N layers of sheet metal
It is formed, N >=2, the switching piece ontology includes tab welding portion and the pole that is extended outward to form by the one end in tab welding portion
Weld part, and the pole weld part can carry out the bending of α angle, 0≤α≤180 ° with respect to tab weld part.Compared to existing skill
Art, the switching chip architecture that the utility model is stacked by using multilayered metal film, can make pole weld part with respect to tab weld part
Certain angle bending is carried out, the welding manner of existing top cover pole and cell polar ear can be made to be become by Laser Welding after first ultrasonic bond
For ultrasonic bond after first Laser Welding, prevents to introduce Laser Welding welding slag in battery, prevent internal short-circuit of battery；Turn of multiple superposed simultaneously
The high surface area of tab construction is conducive to radiate, and can be improved heat dissipation performance when battery uses, promotes battery quality.
Detailed description of the invention
Fig. 1 is one of the structural schematic diagram of the utility model.
Fig. 2 is the second structural representation of the utility model.
In figure: 1- tab welding portion；2- pole weld part；3- insurance hole；4- fixation hole.
Specific embodiment
To keep the technical solution of the utility model and advantage clearer, below in conjunction with specific embodiment and specification
Attached drawing is described in further detail the utility model and its advantages, but the embodiments of the present invention is not limited to
This.
Embodiment 1
As shown in Fig. 1~2, the present embodiment provides a kind of power battery switching chip architectures, including for connecting top cover pole
With the switching piece ontology of battery pole ear, the switching piece ontology is sequentially stacked by N layers of sheet metal and is compounded to form, N >=2, and described turn
Contact pin ontology includes tab welding portion 1 and the pole weld part 2 that is extended outward to form by the one end in tab welding portion 1, and described
Pole weld part 2 can carry out the bending of α angle, 0≤α≤180 ° with respect to tab weld part 1.Wherein, the complex method packet of sheet metal
Include but be not limited to weldering pressure, punching press etc..The switching chip architecture that the utility model is stacked by using multilayered metal film, can be such that pole welds
Socket part 2 carries out certain angle bending with respect to tab weld part 1, can make the welding manner of existing top cover pole and cell polar ear
Laser Welding becomes ultrasonic bond after first Laser Welding after from first ultrasonic bond, prevents to introduce Laser Welding welding slag in battery, prevents inside battery
Short circuit；The high surface area of the switching chip architecture of multiple superposed is conducive to radiate simultaneously, can be improved thermal diffusivity when battery uses
Can, promote battery quality；And switching chip architecture design agrees with limit design of cover theory, can effectively promote battery capacity.
Power battery according to the present utility model switching chip architecture an embodiment in, the bending angle α be 80~
100 °, more preferably α is 90 °.It is bent to and had both been able to satisfy switching piece and tab/pole welding requirement in the angular range,
It is avoided that again simultaneously and occupies excessive inside battery space, effectively promotion battery capacity.
Power battery according to the present utility model switching chip architecture an embodiment in, the sheet metal number of plies N be 5~
50 layers, more preferably 10~25 layers.The stacked switching chip architecture formed of multilayered metal film is conducive to absorb and disperse pole welding
The stress of portion bending place prevents switching piece from generating metal fatigue in pole weld part bending place and is broken；When sheet metal number of plies mistake
When few, bending place stress cannot fully absorb and disperse and be easy to happen fracture, when the number of plies is excessive, switching piece excessive high hardness
And it is difficult to effectively be bent.
As a kind of preferred embodiment of power battery switching chip architecture described in the utility model, the thickness of single-layer metal piece
For 0.02~0.5mm, more preferably 0.1~0.3mm；The overall thickness that N layers of metal film stack postpone is 0.1~25mm, more preferably
0.5~15mm.If thickness is too small, effectively welding possibly can not be realized with pole/tab, while being difficult to meet switching piece overcurrent and be wanted
It asks；If thickness is excessive, not only it is difficult to be bent, while can also occupies excessive inside battery space, reduces battery capacity.
In an embodiment of power battery according to the present utility model switching chip architecture, switching piece ontology is integrally in " mountain "
Type structure.The two sides of " mountain " type structure are connect with battery pole ear, and the middle part of " mountain " type structure is then connect with top cover pole；And it will turn
Contact pin is arranged to " mountain " type structure, and switching piece can on the one hand be reliably connected with top cover pole and battery pole ear realization respectively；
On the other hand, the conveyance capacity and fusing performance of switching piece can be effectively ensured in this way, while can also make full use of in battery
Battery energy density is improved in portion space.
In an embodiment of power battery according to the present utility model switching chip architecture, tab welding portion 1 and pole are welded
Insurance hole 3 is provided between socket part 2, tab welding portion 1 is provided with fixation hole 4.Switching piece can be made to send out by the way that insurance hole 3 is arranged
It can fuse rapidly when raw short circuit, to guarantee the security performance of battery.Positioning can be played to adapter by the way that fixation hole 4 is arranged
And fixed function, it is shifted when can prevent switching piece from being welded, guarantees welding quality, and improve welding efficiency.
In an embodiment of power battery according to the present utility model switching chip architecture, switching piece be positive switching piece or
Cathode switching piece.When switching piece is positive switching piece, for connecting battery core anode ear and top cover positive terminal；When switching piece is negative
When the switching piece of pole, for connecting battery core negative electrode lug and top cover negative terminal.
In an embodiment of power battery according to the present utility model switching chip architecture, switching piece is aluminium switching piece, copper
Switching piece or alloy switching piece.The specific material of switching piece is selected according to the material of pole and tab, generally switching sheet material
Matter need to be identical as tab and pole material, because material of the same race is easier to carry out welding, and can guarantee welding quality.
Embodiment 2
The present embodiment provides a kind of power battery, including battery core, electrolyte, accommodate the battery case of battery core and electrolyte with
And it is sealingly mounted at the top cover on battery case, cell polar ear is electrically connected by the switching piece of embodiment 1 with top cover pole,
In, top cover Positive Poles and positive switching piece are first welded together using Laser Welding by anode welding, then positive switching piece is bent,
So that tab welding portion and pole weld part is converted into 90 DEG C, reuses ultrasonic bond and be welded together positive switching piece and positive pole ear；
Cathode welding, which can be used, welds same welding manner with anode, can also be using the welding manner of Laser Welding after first ultrasonic bond.
Wherein, positive Laser Welding power is between 2~8kW, and cathode Laser Welding power is between 3~10kW, and positive and negative anodes switching piece welds
Meet pulling force >=50N.Wherein, battery core, electrolyte, battery case and top cover are the prior art, and which is not described herein again.
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and is modified.Therefore, the utility model is not limited to above-mentioned specific embodiment, all this field skills
It is practical new that art personnel any conspicuous improvement made on the basis of the utility model, replacement or modification belong to this
The protection scope of type.In addition, these terms are intended merely to facilitate although using some specific terms in this specification
It is bright, any restrictions are not constituted to the utility model.
Claims (9)
- The chip architecture 1. a kind of power battery is transferred, it is special including the switching piece ontology for connecting top cover pole and battery pole ear Sign is: the switching piece ontology is sequentially stacked by N layers of sheet metal and is compounded to form, N >=2, and the switching piece ontology includes tab Weld part and the pole weld part extended outward to form by the one end in tab welding portion, and the pole weld part can be with respect to tab Weld part carries out the bending of α angle, 0≤α≤180 °.
- The chip architecture 2. a kind of power battery according to claim 1 is transferred, it is characterised in that: the bending angle α is 80 ~100 °.
- The chip architecture 3. a kind of power battery according to claim 1 is transferred, it is characterised in that: the sheet metal number of plies N is 5 ~50 layers.
- The chip architecture 4. a kind of power battery according to claim 1 is transferred, it is characterised in that: single-layer metal piece with a thickness of 0.02~0.5mm.
- The chip architecture 5. a kind of power battery according to claim 1 is transferred, it is characterised in that: what N layers of metal film stack postponed Overall thickness is 0.1~25mm.
- The chip architecture 6. a kind of power battery according to claim 1 is transferred, it is characterised in that: the switching piece ontology is whole In " mountain " type structure.
- The chip architecture 7. a kind of power battery according to claim 1 is transferred, it is characterised in that: the tab welding portion and institute It states and is provided with insurance hole between pole weld part.
- The chip architecture 8. a kind of power battery according to claim 1 is transferred, it is characterised in that: the tab welding portion setting There is fixation hole.
- 9. a kind of power battery including battery core, electrolyte, the battery case for accommodating battery core and electrolyte and is sealingly mounted at electricity Top cover on the shell of pond, cell polar ear are electrically connected by switching piece with top cover pole, it is characterised in that: the switching piece is right It is required that 1~8 described in any item switching chip architectures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822053805.9U CN209312879U (en) | 2018-12-07 | 2018-12-07 | A kind of power battery switching chip architecture and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822053805.9U CN209312879U (en) | 2018-12-07 | 2018-12-07 | A kind of power battery switching chip architecture and power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209312879U true CN209312879U (en) | 2019-08-27 |
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ID=67676056
Family Applications (1)
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|---|---|---|---|
| CN201822053805.9U Active CN209312879U (en) | 2018-12-07 | 2018-12-07 | A kind of power battery switching chip architecture and power battery |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729420A (en) * | 2019-09-09 | 2020-01-24 | 东莞塔菲尔新能源科技有限公司 | Power battery and assembly method of top cover and battery core of power battery |
| CN111341988A (en) * | 2020-04-18 | 2020-06-26 | 宁波晨翔电子有限公司 | Button battery box |
| CN113644356A (en) * | 2021-07-28 | 2021-11-12 | 东莞塔菲尔新能源科技有限公司 | Utmost point ear connection structure and battery of battery top cap |
| CN114142180A (en) * | 2021-11-30 | 2022-03-04 | 江苏正力新能电池技术有限公司 | Battery adapting member, battery and battery assembling method |
| WO2022160296A1 (en) * | 2021-01-29 | 2022-08-04 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electric device, and manufacturing method and device for battery cell |
| CN115548421A (en) * | 2022-07-29 | 2022-12-30 | 江苏正力新能电池技术有限公司 | Preparation method of cylindrical battery, cylindrical battery and electric device |
| CN116014375A (en) * | 2023-02-09 | 2023-04-25 | 深圳海润新能源科技有限公司 | Energy storage device and electric equipment |
| WO2024007194A1 (en) * | 2022-07-06 | 2024-01-11 | 宁德时代新能源科技股份有限公司 | Battery cell and assembling method therefor, battery, and electrical apparatus |
| WO2024017367A1 (en) * | 2022-07-21 | 2024-01-25 | 厦门海辰储能科技股份有限公司 | Current collector, battery and battery pack |
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2018
- 2018-12-07 CN CN201822053805.9U patent/CN209312879U/en active Active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729420A (en) * | 2019-09-09 | 2020-01-24 | 东莞塔菲尔新能源科技有限公司 | Power battery and assembly method of top cover and battery core of power battery |
| CN111341988A (en) * | 2020-04-18 | 2020-06-26 | 宁波晨翔电子有限公司 | Button battery box |
| EP4068490A4 (en) * | 2021-01-29 | 2023-05-03 | Contemporary Amperex Technology Co., Limited | BATTERY CELL, BATTERY, ELECTRICAL DEVICE, AND METHOD AND DEVICE OF MAKING THE BATTERY CELL |
| WO2022160296A1 (en) * | 2021-01-29 | 2022-08-04 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electric device, and manufacturing method and device for battery cell |
| US12199315B2 (en) | 2021-01-29 | 2025-01-14 | Contemporary Amperex Technology (Hong Kong) Limited | Battery cell, battery, power consumption device and battery cell manufaturing method and device |
| CN115836438A (en) * | 2021-01-29 | 2023-03-21 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electric device, method for manufacturing battery cell, and device |
| CN113644356A (en) * | 2021-07-28 | 2021-11-12 | 东莞塔菲尔新能源科技有限公司 | Utmost point ear connection structure and battery of battery top cap |
| CN114142180A (en) * | 2021-11-30 | 2022-03-04 | 江苏正力新能电池技术有限公司 | Battery adapting member, battery and battery assembling method |
| CN114142180B (en) * | 2021-11-30 | 2024-01-26 | 江苏正力新能电池技术有限公司 | Battery switching member, battery and battery assembling method |
| WO2024007194A1 (en) * | 2022-07-06 | 2024-01-11 | 宁德时代新能源科技股份有限公司 | Battery cell and assembling method therefor, battery, and electrical apparatus |
| WO2024017367A1 (en) * | 2022-07-21 | 2024-01-25 | 厦门海辰储能科技股份有限公司 | Current collector, battery and battery pack |
| CN115548421A (en) * | 2022-07-29 | 2022-12-30 | 江苏正力新能电池技术有限公司 | Preparation method of cylindrical battery, cylindrical battery and electric device |
| CN116014375A (en) * | 2023-02-09 | 2023-04-25 | 深圳海润新能源科技有限公司 | Energy storage device and electric equipment |
| CN116014375B (en) * | 2023-02-09 | 2023-06-09 | 深圳海润新能源科技有限公司 | Energy storage device and electric equipment |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220126 Address after: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zenergy Battery Technologies Co.,ltd Address before: 523000 Dalang Town, Dongguan, Guangdong province Xiangshan Pine Hill Village Xiangshan Industrial Park Jiayuan Road No. 9 Patentee before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: SHENZHEN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zhengli New Energy Battery Technology Co.,Ltd. Country or region after: China Address before: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee before: Jiangsu Zenergy Battery Technologies Co.,ltd Country or region before: China |
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| CP03 | Change of name, title or address |