CN209312884U - 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
- CN209312884U CN209312884U CN201822053812.9U CN201822053812U CN209312884U CN 209312884 U CN209312884 U CN 209312884U CN 201822053812 U CN201822053812 U CN 201822053812U CN 209312884 U CN209312884 U CN 209312884U
- Authority
- CN
- China
- Prior art keywords
- power battery
- rough surface
- chip architecture
- switching piece
- transferred
- 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.)
- Active
Links
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)
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, switching piece ontology welding position carries out coarse processing and is formed with rough surface, and the roughness of the rough surface is 0.025~100 μm.Compared with the prior art, the utility model forms rough surface by carrying out coarse processing in the welding position of switching piece, can absorb laser energy when welding by rough surface in this way, reduce laser welding power, reduce production cost；It also can avoid welding slag simultaneously to occur, promote welding effect, prevent internal short-circuit of battery, improve the security performance and quality of battery.
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 battery when carrying out being fitted into shell, the connection of core and top cover generally by laser welding top cover and
Switching piece is realized；Currently used laser welding mode has the characteristics of power is high, firm welding, but the meeting in high power welding
Cause to melt at copper/aluminium switching piece solder joint, form bead and splash, such as clear up unclean, can make in the subsequent use of battery core that there are short
The security risks such as road.
And study testimonial material surface it is rougher when, laser, which is mapped to material surface, will appear multiple reflections, and material is to laser
Light absorptive be significantly improved.
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,
To reduce Laser Welding bonding power, cost is reduced；It avoids generating welding slag simultaneously, 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
It states switching piece ontology welding position and carries out coarse processing and be formed with rough surface, the roughness of the rough surface is 0.025~
100μm。
As a kind of preferred embodiment of power battery switching chip architecture described in the utility model, the rough surface it is thick
Rugosity is 1~50 μm.
As a kind of preferred embodiment of power battery switching chip architecture described in the utility model, the rough surface it is thick
Rugosity is 10~20 μm.
As a kind of preferred embodiment of power battery switching chip architecture described in the utility model, the shape of the rough surface
Shape is round, ellipse or polygon.
As a kind of preferred embodiment of power battery switching chip architecture described in the utility model, the face of the rough surface
Product is 0.25~10cm2。
As a kind of preferred embodiment of power battery switching chip architecture described in the utility model, the rough surface passes through
The mode of frosted processing, blasting treatment or solvent corrosion is formed in switching piece ontology welding position.
As a kind of preferred embodiment of power battery switching chip architecture described in the utility model, the switching piece ontology packet
The pole weld part for including tab welding portion and being extended outward to form by the one end in tab welding portion.
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, the tab welding portion is provided 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, switching piece ontology welding position carries out coarse processing and is formed
There is rough surface, the roughness of the rough surface is 0.025~100 μm.Compared with the prior art, the utility model by
The welding position of switching piece carries out coarse processing and forms rough surface, can absorb laser when welding by rough surface in this way
Energy reduces laser welding power, reduces production cost；It also can avoid welding slag simultaneously to occur, promote welding effect, prevent battery
Internal short-circuit improves the security performance and quality of battery.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1- rough surface；2- pole weld part；3- tab welding portion；4- insurance hole；5- 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
The chip architecture as shown in Figure 1, a kind of power battery of the present embodiment is transferred, including for connecting top cover pole and battery pole
The switching piece ontology of ear, switching piece ontology welding position carry out coarse processing and are formed with rough surface 1, rough surface 1 it is coarse
Degree is 0.025~100 μm；Rough surface 1 is formed in switching piece sheet by way of frosted processing, blasting treatment or solvent corrosion
Body welding position, wherein solvent etching can be used the concentrated sulfuric acid, concentrated hydrochloric acid, concentrated nitric acid equal solvent and be handled.The utility model
The rough surface 1 that roughness is 0.025~100 μm is formed by carrying out coarse processing in the welding position of switching piece, in this way may be used
To absorb laser energy when welding by rough surface 1, reduces laser welding power, reduce production cost；It can also keep away simultaneously
Exempt from welding slag appearance, promotes welding effect, prevent internal short-circuit of battery, improve the security performance and quality of battery.
In an embodiment of power battery according to the present utility model switching chip architecture, the roughness of rough surface 1 is 1
~50 μm, more preferably 10~20 μm.Wherein, influence of the roughness of rough surface 1 to photo absorption performance is most important, if coarse
It spends small, it is difficult to so that laser is formed multiple reflections, so that the energy of laser can not be reduced, can still result in welding slag appearance；If coarse
It spends greatly, the energy of laser can be weakened significantly, lead to not effectively be welded.
In an embodiment of power battery according to the present utility model switching chip architecture, the shape of rough surface 1 is circle
Shape, ellipse or polygon.It should be noted that rough surface 1 is also designed to other shapes, concrete shape can root
It is designed according to actual needs.
In an embodiment of power battery according to the present utility model switching chip architecture, the area of rough surface 1 is
0.25~10cm2, more preferably 1~5cm2.When the area of rough surface 1 is too big, welding effect may be will affect；When coarse
When the area on surface 1 is too small, extinction effect is low, will form bead splashing, and then form welding slag, causes security risk.
In an embodiment of power battery according to the present utility model switching chip architecture, switching piece ontology includes tab weldering
Socket part 3 and the pole weld part 2 extended outward to form by the one end in tab welding portion 3.
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 3 and pole are welded
Insurance hole 4 is provided between socket part 2, tab welding portion 3 is provided with fixation hole 5.Switching piece can be made to send out by the way that insurance hole 4 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 5 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, is used
After switching piece and battery core are welded together by ultrasonic bond, reuse laser spot welding and be welded together switching piece and top cover pole.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 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 (10)
- 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: switching piece ontology welding position carries out coarse processing and is formed with rough surface, the roughness of the rough surface It is 0.025~100 μm.
- The chip architecture 2. a kind of power battery according to claim 1 is transferred, it is characterised in that: the rough surface it is coarse Degree is 1~50 μm.
- The chip architecture 3. a kind of power battery according to claim 2 is transferred, it is characterised in that: the rough surface it is coarse Degree is 10~20 μm.
- The chip architecture 4. a kind of power battery according to claim 1 is transferred, it is characterised in that: the shape of the rough surface For round, ellipse or polygon.
- The chip architecture 5. a kind of power battery according to claim 1 is transferred, it is characterised in that: the area of the rough surface For 0.25~10cm2。
- The chip architecture 6. a kind of power battery according to claim 1 is transferred, it is characterised in that: the rough surface passes through mill The mode of sand processing, blasting treatment or solvent corrosion is formed in switching piece ontology welding position.
- The chip architecture 7. a kind of power battery according to claim 1 is transferred, it is characterised in that: the switching piece ontology includes Tab welding portion and the pole weld part extended outward to form by the one end in tab welding portion.
- The chip architecture 8. a kind of power battery according to claim 7 is transferred, it is characterised in that: the switching piece ontology is whole In " mountain " type structure.
- The chip architecture 9. a kind of power battery according to claim 7 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 tab welding portion is provided with fixation hole.
- 10. a kind of power battery including battery core, electrolyte, the battery case for accommodating battery core and electrolyte and is sealingly mounted at Top cover on battery case, cell polar ear are electrically connected by switching piece with top cover pole, it is characterised in that: the switching piece is power Benefit requires 1~9 described in any item switching chip architectures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822053812.9U CN209312884U (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 |
|---|---|---|---|
| CN201822053812.9U CN209312884U (en) | 2018-12-07 | 2018-12-07 | A kind of power battery switching chip architecture and power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209312884U true CN209312884U (en) | 2019-08-27 |
Family
ID=67676047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822053812.9U Active CN209312884U (en) | 2018-12-07 | 2018-12-07 | A kind of power battery switching chip architecture and power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209312884U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589272A (en) * | 2020-12-23 | 2021-04-02 | 湖北亿纬动力有限公司 | Battery laser welding method and battery |
| CN112676676A (en) * | 2020-12-16 | 2021-04-20 | 武汉逸飞激光股份有限公司 | Tab welding method |
| CN113972448A (en) * | 2021-10-19 | 2022-01-25 | 东莞新能安科技有限公司 | Electrochemical device and electronic device comprising same |
| CN115026670A (en) * | 2022-02-11 | 2022-09-09 | 湖南领湃达志科技股份有限公司 | Auxiliary welding device and welding method for connecting sheet of lithium ion battery |
| CN115425370A (en) * | 2022-09-30 | 2022-12-02 | 厦门海辰储能科技股份有限公司 | Connection piece, battery package and consumer |
| WO2023005303A1 (en) * | 2021-07-29 | 2023-02-02 | 荣耀终端有限公司 | Electronic device and method for manufacturing middle frame |
| CN116231239A (en) * | 2022-12-20 | 2023-06-06 | 厦门海辰储能科技股份有限公司 | Tab welding protection sheet, welding structure, energy storage device and electric equipment |
| CN117399792A (en) * | 2023-12-14 | 2024-01-16 | 苏州泰航精密冲压有限公司 | Laser nut welding machine |
| WO2024222079A1 (en) * | 2023-04-28 | 2024-10-31 | 厦门海辰储能科技股份有限公司 | Connecting piece, battery, battery pack, and electronic device |
-
2018
- 2018-12-07 CN CN201822053812.9U patent/CN209312884U/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112676676A (en) * | 2020-12-16 | 2021-04-20 | 武汉逸飞激光股份有限公司 | Tab welding method |
| CN112589272A (en) * | 2020-12-23 | 2021-04-02 | 湖北亿纬动力有限公司 | Battery laser welding method and battery |
| WO2023005303A1 (en) * | 2021-07-29 | 2023-02-02 | 荣耀终端有限公司 | Electronic device and method for manufacturing middle frame |
| CN115673677B (en) * | 2021-07-29 | 2024-03-26 | 荣耀终端有限公司 | Electronic equipment and manufacturing method of middle frame |
| EP4149096A4 (en) * | 2021-07-29 | 2024-01-10 | Honor Device Co., Ltd. | Electronic device and method for manufacturing middle frame |
| CN115673677A (en) * | 2021-07-29 | 2023-02-03 | 荣耀终端有限公司 | A kind of manufacturing method of electronic device and middle frame |
| CN113972448B (en) * | 2021-10-19 | 2022-08-09 | 东莞新能安科技有限公司 | Electrochemical device and electronic device comprising same |
| CN113972448A (en) * | 2021-10-19 | 2022-01-25 | 东莞新能安科技有限公司 | Electrochemical device and electronic device comprising same |
| CN115026670A (en) * | 2022-02-11 | 2022-09-09 | 湖南领湃达志科技股份有限公司 | Auxiliary welding device and welding method for connecting sheet of lithium ion battery |
| CN115425370A (en) * | 2022-09-30 | 2022-12-02 | 厦门海辰储能科技股份有限公司 | Connection piece, battery package and consumer |
| CN115425370B (en) * | 2022-09-30 | 2023-09-22 | 厦门海辰储能科技股份有限公司 | Connection piece, battery pack and electric equipment |
| CN116231239A (en) * | 2022-12-20 | 2023-06-06 | 厦门海辰储能科技股份有限公司 | Tab welding protection sheet, welding structure, energy storage device and electric equipment |
| WO2024222079A1 (en) * | 2023-04-28 | 2024-10-31 | 厦门海辰储能科技股份有限公司 | Connecting piece, battery, battery pack, and electronic device |
| CN117399792A (en) * | 2023-12-14 | 2024-01-16 | 苏州泰航精密冲压有限公司 | Laser nut welding machine |
| CN117399792B (en) * | 2023-12-14 | 2024-03-19 | 苏州泰航精密冲压有限公司 | Laser nut welding machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209312884U (en) | A kind of power battery switching chip architecture and power battery | |
| CN209312879U (en) | A kind of power battery switching chip architecture and power battery | |
| CN209312883U (en) | A kind of power battery switching chip architecture and power battery | |
| CN207183330U (en) | Battery cover structure | |
| CN209029463U (en) | Power battery connection sheet and power battery | |
| CN202839828U (en) | a power battery | |
| CN209312882U (en) | A kind of power battery switching chip architecture and power battery | |
| CN109904379A (en) | A kind of power battery switching piece welding structure and its welding method | |
| CN213278320U (en) | Power battery adapter sheet with thin local pier and power battery | |
| CN209312876U (en) | A kind of power battery switching chip architecture and power battery | |
| CN201259904Y (en) | Lithium-ion electric core and positive pole lug for manufacturing the electric core | |
| CN201466094U (en) | Positive plate and negative plate of lithium-ion battery with low contact resistance | |
| CN209312885U (en) | A kind of battery switching chip architecture | |
| CN201219111Y (en) | Lithium ion power cell | |
| CN207409526U (en) | Power battery head cover assembling structure | |
| CN207676990U (en) | The bindiny mechanism of a kind of collector and pole and the battery with the bindiny mechanism | |
| CN201084777Y (en) | A lithium battery pole piece structure | |
| CN110871332A (en) | A power battery tab pre-welding device | |
| CN201364919Y (en) | Protection board contact wafer for polymer lithium ion battery | |
| CN103531741A (en) | Lithium ion battery negative electrode tab component, manufacturing method thereof and lithium ion battery | |
| CN202352750U (en) | Lithium ion battery and tab structure thereof | |
| CN208078086U (en) | A kind of lithium battery pole ear | |
| CN104157824B (en) | Conduction band and battery employing same | |
| CN209029468U (en) | A kind of power battery connection sheet and power battery | |
| CN201946672U (en) | Storage battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220125 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. |
|
| CP03 | Change of name, title or address | ||
| 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 |