CN206379415U - Secondary cell - Google Patents
Secondary cell Download PDFInfo
- Publication number
- CN206379415U CN206379415U CN201720047011.4U CN201720047011U CN206379415U CN 206379415 U CN206379415 U CN 206379415U CN 201720047011 U CN201720047011 U CN 201720047011U CN 206379415 U CN206379415 U CN 206379415U
- Authority
- CN
- China
- Prior art keywords
- main body
- linkage section
- lug
- secondary cell
- switching piece
- 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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- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a kind of secondary cell, it includes battery container, it is contained in the battery core in battery container, cover the opening of battery container and the battery cap provided with pole, and switching piece, battery core includes main body and the lug for being connected and extending towards the direction close to battery cap with main body, lug includes switching piece linkage section, the bending segment of main body linkage section and connection switching piece linkage section and main body linkage section, wherein, switching piece includes the conductive part for being used to connect switching piece group section and pole, bending section on the outside of bending segment, and the insulation division between main body and main body linkage section.Relative to prior art, the utility model secondary cell has advantages below：Lug is electrically connected with pole, and the insulation division of switching piece is inserted between lug and battery core main body, the moulding effect of lug is played, prevents lug from entering inside battery core；The contact between lug and battery core main body is separated, it is to avoid the risk of battery short circuit, it is ensured that the safety of battery.
Description
Technical field
The utility model belongs to field of batteries, more specifically, and the utility model is related to a kind of secondary cell.
Background technology
At present, in the electric industry of lithium, the insulation of lug and battery core affects the security performance of lithium ion battery, metal tabs
In motion or vibrations in the presence of the risk that short circuit is overlapped with the pole piece in battery core.Short circuit once occurs for powered battery, then may
Generation failure even Fire explosion.Thus it is guaranteed that the insulation of lug and battery core is most important.
In order to ensure the insulation of lug and battery core, battery short circuit is prevented, prior art is typically between lug and battery core
Increase insulating support or spacer ring.But, there is following defect in increase insulating support or spacer ring：Insulating support or spacer ring need to be formed
Closure is fixed, and is also required to be connected at non-lug, therefore can increase the cost and weight of battery.Only lug and battery core it
Between set insulating trip to reduce cost and weight, but insulating trip is difficult to fix, and insulating trip is easily moved in case of shock,
Lose insulating effect.In addition, realizing that insulating trip automation is installed is also required to put into very big cost.
In order to ensure the insulation of lug and battery core, battery short circuit is prevented, prior art also teaches insulation is pasted at lug
Glue, lug is coated completely, but this needs to develop electrolyte resistance corrosion and anti abrasive adhesive tape.
In view of this, it is necessory to provide a kind of safely and effectively secondary cell.
Utility model content
The purpose of this utility model is：Overcoming the defect of prior art, there is provided a kind of safely and effectively secondary cell.
In order to realize foregoing invention purpose, the utility model provides a kind of secondary cell, including battery container, is contained in
Battery core, the opening of the covering battery container in the battery container and the battery cap provided with pole, and switching piece, institute
Stating battery core includes main body and the lug for electrically connecting and extending towards the direction close to the battery cap with main body, the lug bag
Switching piece linkage section, main body linkage section and the bending segment for connecting the switching piece linkage section and the main body linkage section are included, its
In, the switching piece is including the conductive part for connecting switching piece group section and the pole, on the outside of the bending segment
Bending section, and the insulation division between the main body and the main body linkage section.
Improved as one kind of the utility model secondary cell, the folder formed between the main body and the main body linkage section
Angle is 0 °~45 °.
As the utility model secondary cell one kind improve, the insulation division include insulation division internal layer, the conductive part,
The bending section and the insulation division internal layer are integrally formed by conductive material, and the insulation division internal layer surface is provided with insulating materials.
Improved as one kind of the utility model secondary cell, the insulation division is integrally made up of insulating materials.
Improved as one kind of the utility model secondary cell, the bending section surface is provided with insulating materials.
Improved as one kind of the utility model secondary cell, the institute bending section is overall by deformable insulating materials system
Into.
Improved as one kind of the utility model secondary cell, the thickness of the conductive part and the insulation division is 0.1
~2mm.
Improved as one kind of the utility model secondary cell, the one side of the conductive part is welded to connect with the pole,
The another side of the conductive part is welded to connect with the switching piece linkage section.
Improved as one kind of the utility model secondary cell, the conductive part is slab construction, the conductive part includes
The pole linkage section being welded to connect with the pole and the lug linkage section being welded to connect with the switching piece linkage section.
Improved as one kind of the utility model secondary cell, the width of the conductive part is more than the width of the lug.
Relative to prior art, the utility model secondary cell has following advantageous effects：1) will by switching piece
Lug is electrically connected with pole, and the insulation division that switching piece one end is fixed insert lug main body linkage section and battery core main body it
Between, the moulding effect of lug is played, prevents lug from entering the inside of battery core main body；2) by the insulation characterisitic of switching piece, cut-off
Contact between lug and battery core main body, it is to avoid the risk of battery short circuit, it is ensured that the safety of battery.
Brief description of the drawings
With reference to the accompanying drawings and detailed description, the utility model secondary cell is described in detail, wherein：
Fig. 1 is the three-dimensional exploded view of the utility model secondary cell.
Fig. 2 is the partial schematic sectional view after the utility model secondary cell is assembled.
Fig. 3 is the expanded schematic diagram of switching piece in the utility model secondary cell.
Fig. 4 is the schematic perspective view of switching piece in the utility model secondary cell.
Embodiment
In order that goal of the invention of the present utility model, technical scheme and its advantageous effects become apparent from, below in conjunction with
The drawings and specific embodiments, the utility model is further elaborated.It should be appreciated that described in this specification
Embodiment just for the sake of explaining the utility model, be not to limit the utility model.
It refer to shown in Fig. 1 and Fig. 2, the utility model secondary cell includes：Battery container (not shown), it is contained in battery
Battery core 108, the opening of covering battery container in housing and the battery cap 102 provided with pole 106, and switching piece, battery core
108 include main body 110 and the lug 104 for electrically connecting and extending towards the direction close to battery cap 102 with main body 110, lug
104 include switching piece linkage section 112, main body linkage section 114 and connection switching piece linkage section 112 and main body linkage section 114
Bending segment 116, wherein, switching piece is including the conductive part 202 for connecting switching piece group section 112 and pole 106, positioned at bending
The bending section 204 in the outside of section 116, and the insulation division 206 between main body 110 and main body linkage section 114.Need explanation
Be, bending section 204 be located at the outside of bending segment 116 be using in Fig. 2 secondary cell putting position as reference.
The included angle A formed between the main body 110 of battery core 108 and the main body linkage section 114 of lug 104 is 0 °~45 °.
Refer to shown in Fig. 2 to Fig. 4, one side and the pole 106 of conductive part 202 are welded to connect, another side connects with switching piece
Connect section 112 to be welded to connect, realize the effect that lug 104 is electrically connected with pole 106.According to an embodiment party of the present utility model
Formula, conductive part 202 is slab construction, including the pole linkage section that is welded to connect with pole 106 and is connected with switching piece linkage section 112
The lug linkage section connect.Conductive part 202 can be made up of conductive metal material, preferably the one or more in aluminium, copper, nickel, lead
Electric portion 202 can also be made up of non-metallic conducting material.The width of conductive part 202 determines by battery size, generally higher than lug
104 width, the thickness of conductive part 202 is 0.1~2mm.In the shown embodiment, conductive part 202 is by wide 32mm, thickness
0.6mm aluminium foil is made.
Bending section 204 is overall to have bending deformed characteristic, is made up of insulating materials, preferably by makrolon (PC) or
Rubber is made.Bending section 204 is located at the outside of bending segment 116, and bending section 204 bends downwards and coats bending segment 116 completely.According to
An embodiment of the present utility model, bending section 204 and the one kind or several of conductive part 202 by welding, hot melt, gluing etc.
Plant combination connection.In the shown embodiment, bending section 204 is made up of 0.6mm rubber cambered surface.
Insulation division 206 is connected with bending section 204, and connected mode is hot melt or gluing one or more combination.Insulation division
206 entirety are made up of insulating materials, are preferably made up of PC, polyvinyl chloride (PVC) or rubber, and it is located at main body 110 and connected with main body
Connect between section 114, the main body linkage section 114 of lug 104 and the main body 110 of battery core 108 can be separated, play insulating effect.Absolutely
The thickness of edge 206 is 0.1~2mm, and in the shown embodiment, insulating trip 206 is made up of thickness of 0.6mm PVC.
Refer to shown in Fig. 1 and Fig. 2, the operation principle of the utility model secondary cell switching piece is：The one of conductive part 202
Face is welded to connect with switching piece linkage section 112, and another side and the pole 106 of the inner side of battery cap 102 are welded to connect, and realize pole
The electric connection of ear 104 and pole 106.Bending section 204 bends downwards and the bending segment 116 of lug 104 is coated on into inner side, curved
Pars convoluta 204 is bent downwardly to be placed between the A of main body 110 and the formation of main body linkage section 114 with the insulation division 206 of the other end.Electricity
The main body 110 of core 108 is wound by positive pole diaphragm, cathode membrane and barrier film or lamination is formed, and insulation division 206 is by lug 104
Main body linkage section 114 and the diaphragm of battery core 108 are kept apart, therefore can prevent the vertical tremor of lug 104 from overlapping short circuit with diaphragm.
Although it is understood that in the shown embodiment, conductive part 202, bending section 204 and the insulation of switching piece
Portion 206 is independently arranged, and is connected with each other by welding, hot melt, adhesive means.But, according to other implementations of the present utility model
Mode, switching piece can also be integrally formed by conductive material, i.e., insulation division 206 includes insulation division internal layer, conductive part 202, bending
Portion 204 and insulation division internal layer are integrally formed by conductive material, and are provided with insulating materials on the surface of insulation division internal layer.It is preferred that
Ground, the surface of bending section 204 also is provided with insulating materials.
Description to the utility model embodiment with reference to more than is understood, relative to prior art, the utility model
Secondary cell has the advantages that：1) lug 104 is electrically connected with pole 106 by switching piece, and by switching piece one end
Between the fixed main body linkage section 114 of the insertion lug 104 of insulation division 206 and the main body 110 of battery core 108, lug 104 is played
Moulding effect, prevents lug 104 from entering inside the main body 110 of battery core 108；2) by the insulation characterisitic of switching piece, cut-off
Contact between lug 104 and the main body 110 of battery core 108, it is to avoid the risk of battery short circuit, it is ensured that the safety of battery.
The announcement and teaching of book according to the above description, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying carries out appropriate change and modification.Therefore, the utility model is not limited to specific implementation disclosed and described above
Some modifications and changes of the present utility model should also be as falling into scope of the claims of the present utility model by mode.
Although in addition, used some specific terms in this specification, these terms merely for convenience of description, not to this reality
With any limitation of new composition.
Claims (10)
1. a kind of secondary cell, including battery container, the battery core being contained in the battery container, the covering battery container
Opening and the battery cap provided with pole, and switching piece, the battery core include main body and electrically connected with main body and towards close
The lug of the direction extension of the battery cap, it is described that the lug includes switching piece linkage section, main body linkage section and connection
The bending segment of switching piece linkage section and the main body linkage section, it is characterised in that：The switching piece includes being used to connect described turn
The conductive part of contact pin group section and the pole, the bending section on the outside of the bending segment, and positioned at the main body and institute
State the insulation division between main body linkage section.
2. secondary cell according to claim 1, it is characterised in that：Formed between the main body and the main body linkage section
Angle be 0 °~45 °.
3. secondary cell according to claim 1, it is characterised in that：The insulation division includes insulation division internal layer, described to lead
Electric portion, the bending section and the insulation division internal layer are integrally formed by conductive material, and the insulation division internal layer surface is provided with insulation
Material.
4. secondary cell according to claim 1, it is characterised in that：The insulation division is integrally made up of insulating materials.
5. secondary cell according to claim 3, it is characterised in that：The bending section surface is provided with insulating materials.
6. secondary cell according to claim 1, it is characterised in that：The bending section is overall by deformable insulating materials
It is made.
7. secondary cell according to claim 1, it is characterised in that：The thickness of the conductive part and the insulation division is
0.1~2mm.
8. secondary cell according to claim 1, it is characterised in that：The one side of the conductive part is welded with the pole to be connected
Connect, the another side of the conductive part is welded to connect with the switching piece linkage section.
9. secondary cell according to claim 8, it is characterised in that：The conductive part is slab construction, the conductive part
Including the pole linkage section being welded to connect with the pole and the lug linkage section being welded to connect with the switching piece linkage section.
10. secondary cell according to claim 1, it is characterised in that：The width of the conductive part is more than the lug
Width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720047011.4U CN206379415U (en) | 2017-01-16 | 2017-01-16 | Secondary cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720047011.4U CN206379415U (en) | 2017-01-16 | 2017-01-16 | Secondary cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206379415U true CN206379415U (en) | 2017-08-04 |
Family
ID=59405081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720047011.4U Active CN206379415U (en) | 2017-01-16 | 2017-01-16 | Secondary cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206379415U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108428852A (en) * | 2018-01-12 | 2018-08-21 | 宁德时代新能源科技股份有限公司 | Secondary battery and automobile |
| CN112687832A (en) * | 2020-12-24 | 2021-04-20 | 宁德新能源科技有限公司 | Battery cell and power utilization device |
| CN113300056A (en) * | 2021-06-25 | 2021-08-24 | 厦门海辰新能源科技有限公司 | Tab connecting assembly, single battery, tab and adapter plate connecting method |
| WO2021218082A1 (en) * | 2020-04-26 | 2021-11-04 | 宁德时代新能源科技股份有限公司 | Secondary battery, battery module, and device using secondary battery as power source |
| CN114284644A (en) * | 2021-12-22 | 2022-04-05 | 远景动力技术(江苏)有限公司 | Switching structure and contain its full utmost point ear book core, full utmost point ear battery |
| CN115172998A (en) * | 2022-07-26 | 2022-10-11 | 上海兰钧新能源科技有限公司 | Secondary battery and method for manufacturing secondary battery |
| CN115295976A (en) * | 2022-10-08 | 2022-11-04 | 武汉亿纬储能有限公司 | Spacing piece of utmost point ear, top cap subassembly and battery |
| WO2024077480A1 (en) * | 2022-10-11 | 2024-04-18 | 宁德时代新能源科技股份有限公司 | Adapter plate, battery cell, battery and electric device |
-
2017
- 2017-01-16 CN CN201720047011.4U patent/CN206379415U/en active Active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108428852A (en) * | 2018-01-12 | 2018-08-21 | 宁德时代新能源科技股份有限公司 | Secondary battery and automobile |
| CN108428852B (en) * | 2018-01-12 | 2024-02-09 | 宁德时代新能源科技股份有限公司 | Secondary battery and automobile |
| WO2021218082A1 (en) * | 2020-04-26 | 2021-11-04 | 宁德时代新能源科技股份有限公司 | Secondary battery, battery module, and device using secondary battery as power source |
| CN114503355A (en) * | 2020-04-26 | 2022-05-13 | 宁德时代新能源科技股份有限公司 | Secondary battery, battery module, and device using secondary battery as power supply |
| CN114503355B (en) * | 2020-04-26 | 2024-02-23 | 宁德时代新能源科技股份有限公司 | Secondary battery, battery module, and device using secondary battery as power source |
| CN112687832A (en) * | 2020-12-24 | 2021-04-20 | 宁德新能源科技有限公司 | Battery cell and power utilization device |
| CN113300056A (en) * | 2021-06-25 | 2021-08-24 | 厦门海辰新能源科技有限公司 | Tab connecting assembly, single battery, tab and adapter plate connecting method |
| CN114284644A (en) * | 2021-12-22 | 2022-04-05 | 远景动力技术(江苏)有限公司 | Switching structure and contain its full utmost point ear book core, full utmost point ear battery |
| CN114284644B (en) * | 2021-12-22 | 2024-02-20 | 远景动力技术(江苏)有限公司 | Switching structure and full-tab winding core and full-tab battery comprising same |
| CN115172998A (en) * | 2022-07-26 | 2022-10-11 | 上海兰钧新能源科技有限公司 | Secondary battery and method for manufacturing secondary battery |
| CN115295976A (en) * | 2022-10-08 | 2022-11-04 | 武汉亿纬储能有限公司 | Spacing piece of utmost point ear, top cap subassembly and battery |
| CN115295976B (en) * | 2022-10-08 | 2023-01-13 | 武汉亿纬储能有限公司 | Spacing piece of utmost point ear, top cap subassembly and battery |
| US11984619B2 (en) | 2022-10-08 | 2024-05-14 | Eve Energy Storage Co., Ltd. | Tab limiting sheet, top cover assembly, and battery |
| WO2024077480A1 (en) * | 2022-10-11 | 2024-04-18 | 宁德时代新能源科技股份有限公司 | Adapter plate, battery cell, battery and electric device |
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| GR01 | Patent grant |