CN203377303U - Connecting piece for pole lug and pole post of lithium battery and lithium battery using same - Google Patents
Connecting piece for pole lug and pole post of lithium battery and lithium battery using same Download PDFInfo
- Publication number
- CN203377303U CN203377303U CN201320403000.7U CN201320403000U CN203377303U CN 203377303 U CN203377303 U CN 203377303U CN 201320403000 U CN201320403000 U CN 201320403000U CN 203377303 U CN203377303 U CN 203377303U
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- pole
- lithium battery
- lug
- connector
- metallic laminations
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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 connecting piece for a pole lug and a pole post of a lithium battery and the lithium battery using the same, wherein the connecting piece for the pole lug and pole post of the lithium battery comprises a pole lug connecting part; the pole lug connecting part comprises a middle supporting part and bending parts arranged at two sides of the supporting part and used for forming the side walls of a U-shaped groove; the edges of the bending parts are fixedly connected with protective flanging edges bending towards the outer side of the U-shaped groove to form a U-shaped protective groove for covering and clamping corresponding half pole lugs together with the bending parts. After the pole lug connecting part is bent to form the U-shaped groove, the surfaces at one sides of the two bending parts can be respectively adhered to the inner side walls of the corresponding half pole lugs, the pole lug connecting part is also provided with two protective flanging edges, and each protective flanging edge can be bent towards the outer side of the U-shaped groove to form the U-shaped protective groove for covering and clamping the corresponding half pole lugs together with the bending parts, so that the pole lug connecting part and the pole lug can be accurately located, and the excursion between the pole lug and the connecting piece is effectively avoided during welding.
Description
Technical field
The utility model relates to the connector of lithium battery pole ear and pole and uses the lithium battery of this connector.
Background technology
In battery manufacturing process, the pole on cover plate need to be used connector to conduct electricity with lug on battery core to be connected, wherein the connected mode of connector and lug have multiple, as riveted joint, screw threads for fastening connection, ultrasonic bonding etc.Application number is 201210446382.1, the connector of the disclosed a kind of lithium ion battery of the Chinese patent that Shen Qing Publication day is Shen Qing Publication day 2013.03.13 and lug and pole, wherein lug anodal and negative pole is all to consist of two and half lugs, and half and half lug through-thickness is separately also spaced.The connector that each utmost point lug is corresponding is T shape, the connector of this T shape has the lug connecting portion that is embedded for being bent into the U-shaped groove structure between two and half lugs and perpendicular to the pole connecting portion of lug connecting portion, the lug connecting portion is sheet, support section in the middle of comprising and be arranged on the bending part for the sidewall that forms the U-shaped groove of support section both sides, after the lug connecting portion is bent into the U-shaped groove structure, two lateral surfaces of bending part can be respectively and the medial surface close fit of corresponding half lug; The pole connecting portion is strip, can after the pole bending, with pole, be connected.By ultrasonic bonding, bending part and half and half lug are welded and fixed respectively, can realize that the conduction of connector and lug is connected.But, in order to meet the bending demand, the metal material that connector adopts is generally softer, connector is flexible link, so the lug connecting portion is difficult for and lug keeps location accurately, when welding, easily is offset, and, along with the increase of lithium battery capacity and the increase of the pole piece number of plies, during welding, easy impaired the breaking of the outer pole piece of half and half lug, cause lithium battery to damage and even scrap.
The utility model content
The purpose of this utility model is to provide a kind of lithium battery pole ear that can accurately locate with the lug realization and the connector of pole, and a kind of lithium battery that uses this connector to make is provided simultaneously.
The technical scheme that in the utility model, the connector of lithium battery pole ear and pole adopts is: the connector of lithium battery pole ear and pole; comprise the lug connecting portion; described lug connecting portion comprises the support section at middle part and is arranged on the bending part for the sidewall that forms the U-shaped groove of support section both sides, and the edge of described bending part is fixed with for the outer lateral buckling to the U-shaped groove protection that is formed for the U-shaped protector of corresponding half lug of double team with bending part and turns edge.
It is all to be connected in the outer side edges that mutually deviates between two bending parts along upper that each described protection turns edge.
The thickness that described protection turns edge is less than the thickness of bending part.
The connector of described lithium battery pole ear and pole is to be formed by the stacked setting of multilayer soft foil metal; comprise that the number of plies of described the second metallic laminations is less than the number of plies of the first metallic laminations for forming the first two-layer above metallic laminations of lug connecting portion and the second metallic laminations turned edge for forming protection.
Described the second metallic laminations is individual layer, and laminating is arranged on upper surface or the lower surface of the first metallic laminations.
The bight that the bight of the connector of described lithium battery pole ear and pole and/or described protection turn edge is provided with chamfering or rounding.
The technical scheme that in the utility model, a kind of lithium battery adopts is: a kind of lithium battery; the connector that comprises battery core, half lug, lug and pole; the connector of described lug and pole comprises the lug connecting portion; described lug connecting portion comprises the support section at middle part and is arranged on the bending part for the sidewall that forms the U-shaped groove of support section both sides, and the edge of described bending part is fixed with for the outer lateral buckling to the U-shaped groove protection that is formed for the U-shaped protector of corresponding half lug of double team with bending part and turns edge.
It is all to be connected in the outer side edges that mutually deviates between two bending parts along upper that each described protection turns edge.
The connector of described lithium battery pole ear and pole is to be formed by the stacked setting of multilayer soft foil metal; comprise that the number of plies of described the second metallic laminations is less than the number of plies of the first metallic laminations for forming the first two-layer above metallic laminations of lug connecting portion and the second metallic laminations turned edge for forming protection.
Described the second metallic laminations is individual layer, and laminating is arranged on upper surface or the lower surface of the first metallic laminations.
The utility model adopts technique scheme; after the lug connecting portion is bent into the U connected in star; one side surface of two bending parts can be fitted in respectively on the madial wall of corresponding half lug; because also having two protections that are connected with the edge of two described bending parts respectively, the lug connecting portion turns edge; each described protection turns edge all can be to the outer lateral buckling of U-shaped groove and be formed for the U-shaped protector of corresponding half lug of double team with bending part; therefore compared with prior art; can realize and the accurate location of lug, be offset between lug and connector while effectively preventing from welding.In addition, during welding, protection turns edge and can play a protective role by double outermost pole piece of lug, prevents that the pole piece welding is impaired.
The accompanying drawing explanation
Fig. 1: the structural representation of an embodiment of the connector of the utility model lithium battery pole ear and pole;
Fig. 2: the shape schematic diagram after the connector bending in Fig. 1;
Fig. 3: the assembling schematic diagram of connector and half lug in the utility model is also the structural representation of a kind of lithium battery in the utility model simultaneously.
The name that in figure, each Reference numeral is corresponding is called: 1 connector, and 11 adhesive pieces, 2 lug connecting portions, 21 bending parts, 22 protections turn edge, 3 pole connecting portions, 4 first roundings, 5 second roundings, 6 half lugs, 7 battery cores.
Embodiment
In the utility model, a kind of lithium battery embodiment is as shown in Fig. 1 ~ Fig. 3, comprise battery core 7, be arranged on two and half lugs 6 on battery core 7 and the connector 1 of lug and pole, this connector 1 comprises the lug connecting portion 2 that is inlaid in for being bent into the U-shaped groove structure between two and half corresponding lugs 6, perpendicular to the pole connecting portion 3 of lug connecting portion 2, lug connecting portion 2 is that sheet is extended along horizontal left and right, and pole connecting portion 3 is that strip extends along vertical front and back.Lug connecting portion 2 have two for the sidewall that forms the U-shaped groove and with the bending part 21 of the lateral wall close fit of corresponding half lug.
This connector 1 is to be formed by the stacked setting of multiple layer of copper sheet, and each layer of copper sheet is welded to each other and is connected, and comprise for forming the first metallic laminations of lug connecting portion, and laminating is arranged on the second metallic laminations of the first metallic laminations lower surface.The first metallic laminations is that T shape is provided with multilayer; the second metallic laminations is individual layer; be shaped as the edge, left side that stretches out respectively left side bending part in rectangle that corresponding lug bending part 2 arranges and the left and right sides and the right edge edge of right side bending part; the part of stretching out have for the corresponding edges around correspondence half lug bending and with the locating surface of the lateral wall close fit of half lug; form protection and turn edge 22, can be to the outer lateral buckling of U-shaped groove and be formed for the U-shaped protector of corresponding half lug of double team with bending part.The bight of the bight of lug connecting portion 2 and adhesive piece 11 is respectively equipped with the first rounding 4 and the second rounding 5, can avoid damaging half lug 6 and battery core 7, certainly, this first rounding 4 and the second rounding 5 also can adopt chamfering in other embodiments, in the situation that do not consider that double lug 6 of possibility and battery core 7 etc. cause damage, also can not arrange chamfering or rounding.
During assemble welding, at first 90-degree bent all makes progress two bending parts 21, make lug connecting portion 2 form the U-shaped groove structure, adhesive piece 11 is also along with bending part 21 bendings simultaneously, then connector 1 setting-in after bending is between the two halves lug 6 of the corresponding utmost point of lithium battery, make left and right side after bending part 21 bending respectively with the madial wall close fit of two halves lug 6, then two protections are turned edge to 22 respectively around the top of correspondence half lug 6 to the left or the right side 90-degree bent, form shape as shown in Figure 2, continue again bending downwards, make the lateral wall close fit of bending part 21 and corresponding half lug 6, half lug double team can be got up, make connector 1 and half lug keep relative positioning.Finally, utilize the mode such as ultrasonic bonding that connector 1 and half lug 6 are welded and fixed, now protection turns edge and 22 can also play a protective role by double outermost pole piece of lug.
In the above-described embodiments, protection 22 left sides that are arranged on corresponding bending part 21 that turn edge, the right edge edge, like this, protection 22 tops that can be fastened on half lug 6 that turn edge during bending, can rely on gravity rack to be located on half lug, realize better location, and, it 22 is to rely on the copper sheet that the 2 lower surfaces laminatings of lug connecting portion arrange to form that this protection turns edge, in other embodiment of the present utility model, protection turns edge and 22 also can adopt other form settings, for example be arranged on front side edge edge or the back side edge edge of bending part 21, during bending, double team is to front side or the rear side of half lug, can realize equally location, and also can fit and be arranged on the upper surface of lug connecting portion 2 for forming turn edge 22 copper sheet of protection, or be folded between two first metallic laminations, or adopt two laminated structures, be connected in respectively the respective side edge of bending part 21.In addition, the material of connector 1 also can adopt other materials, for example adopt aluminium, and the number of plies of soft foil metal also can increase and decrease as required, or is arranged to individual layer.Moreover bending part 21 bending angles are not limited to 90 °, for example, when 6 employings of two halves lug are obliquely installed, bending part 21 can be bent into corresponding angle, to guarantee its surface and half lug laminating.
Claims (10)
1. the connector of lithium battery pole ear and pole; comprise the lug connecting portion; described lug connecting portion comprises the support section at middle part and is arranged on the bending part for the sidewall that forms the U-shaped groove of support section both sides, it is characterized in that: the edge of described bending part is fixed with for the outer lateral buckling to the U-shaped groove protection that is formed for the U-shaped protector of corresponding half lug of double team with bending part and turns edge.
2. the connector of lithium battery pole ear according to claim 1 and pole is characterized in that: it is all to be connected in the outer side edges that mutually deviates between two bending parts along upper that each described protection turns edge.
3. the connector of lithium battery pole ear according to claim 1 and 2 and pole, it is characterized in that: the thickness that described protection turns edge is less than the thickness of bending part.
4. the connector of lithium battery pole ear according to claim 3 and pole; it is characterized in that: the connector of described lithium battery pole ear and pole is to be formed by the stacked setting of multilayer soft foil metal; comprise that the number of plies of described the second metallic laminations is less than the number of plies of the first metallic laminations for forming the first two-layer above metallic laminations of lug connecting portion and the second metallic laminations turned edge for forming protection.
5. the connector of lithium battery pole ear according to claim 4 and pole, it is characterized in that: described the second metallic laminations is individual layer, laminating is arranged on upper surface or the lower surface of the first metallic laminations.
6. the connector of lithium battery pole ear according to claim 1 and 2 and pole, it is characterized in that: the bight that the bight of the connector of described lithium battery pole ear and pole and/or described protection turn edge is provided with chamfering or rounding.
7. a lithium battery; the connector that comprises battery core, half lug, lug and pole; the connector of described lug and pole comprises the lug connecting portion; described lug connecting portion comprises the support section at middle part and is arranged on the bending part for the sidewall that forms the U-shaped groove of support section both sides, it is characterized in that: the edge of described bending part is fixed with for the outer lateral buckling to the U-shaped groove protection that is formed for the U-shaped protector of corresponding half lug of double team with bending part and turns edge.
8. a kind of lithium battery according to claim 7 is characterized in that: it is all to be connected in the outer side edges that mutually deviates between two bending parts along upper that each described protection turns edge.
9. according to the described a kind of lithium battery of claim 7 or 8; it is characterized in that: the connector of described lithium battery pole ear and pole is to be formed by the stacked setting of multilayer soft foil metal; comprise that the number of plies of described the second metallic laminations is less than the number of plies of the first metallic laminations for forming the first two-layer above metallic laminations of lug connecting portion and the second metallic laminations turned edge for forming protection.
10. a kind of lithium battery according to claim 9, it is characterized in that: described the second metallic laminations is individual layer, laminating is arranged on upper surface or the lower surface of the first metallic laminations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320403000.7U CN203377303U (en) | 2013-07-08 | 2013-07-08 | Connecting piece for pole lug and pole post of lithium battery and lithium battery using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320403000.7U CN203377303U (en) | 2013-07-08 | 2013-07-08 | Connecting piece for pole lug and pole post of lithium battery and lithium battery using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203377303U true CN203377303U (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320403000.7U Expired - Lifetime CN203377303U (en) | 2013-07-08 | 2013-07-08 | Connecting piece for pole lug and pole post of lithium battery and lithium battery using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203377303U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450126A (en) * | 2016-08-31 | 2017-02-22 | 苏州宝优际科技股份有限公司 | Aluminum flexible connecting part used for internal tab and top cover of battery cell, and manufacturing method for aluminum flexible connecting part |
| CN109494496A (en) * | 2017-09-13 | 2019-03-19 | 河北银隆新能源有限公司 | Be flexible coupling piece and its square housing battery |
| CN111785904A (en) * | 2018-01-12 | 2020-10-16 | 宁德时代新能源科技股份有限公司 | Secondary battery and automobile |
| WO2020239004A1 (en) * | 2019-05-31 | 2020-12-03 | 华为技术有限公司 | Battery and electronic device |
| US20200411834A1 (en) * | 2018-03-01 | 2020-12-31 | Contemporary Amperex Technology Co., Limited | Secondary battery and vehicle |
| EP3742522A4 (en) * | 2018-01-16 | 2021-04-07 | Contemporary Amperex Technology Co., Limited | Connection member and rechargeable battery |
| CN113437447A (en) * | 2021-06-01 | 2021-09-24 | 海亿新能源扬州有限公司 | Lithium ion battery with bent tab and tab protection accessory |
| CN113782921A (en) * | 2021-08-13 | 2021-12-10 | 东莞塔菲尔新能源科技有限公司 | Secondary battery |
| 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 |
| CN114865238A (en) * | 2022-04-22 | 2022-08-05 | 合肥国轩高科动力能源有限公司 | Lithium battery |
| CN115312989A (en) * | 2022-09-09 | 2022-11-08 | 厦门海辰储能科技股份有限公司 | Battery connecting sheet and assembly method thereof, battery pack and electric equipment |
| CN115472897A (en) * | 2022-10-27 | 2022-12-13 | 厦门海辰储能科技股份有限公司 | Battery, battery module, battery pack and electric equipment |
| CN115528384A (en) * | 2022-11-01 | 2022-12-27 | 厦门海辰储能科技股份有限公司 | Battery, battery module and electric equipment |
| CN115588822A (en) * | 2022-12-12 | 2023-01-10 | 宁德新能源科技有限公司 | Battery and battery pack |
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2013
- 2013-07-08 CN CN201320403000.7U patent/CN203377303U/en not_active Expired - Lifetime
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450126A (en) * | 2016-08-31 | 2017-02-22 | 苏州宝优际科技股份有限公司 | Aluminum flexible connecting part used for internal tab and top cover of battery cell, and manufacturing method for aluminum flexible connecting part |
| CN109494496A (en) * | 2017-09-13 | 2019-03-19 | 河北银隆新能源有限公司 | Be flexible coupling piece and its square housing battery |
| CN111785904B (en) * | 2018-01-12 | 2021-08-17 | 宁德时代新能源科技股份有限公司 | Secondary battery and automobile |
| CN111785904A (en) * | 2018-01-12 | 2020-10-16 | 宁德时代新能源科技股份有限公司 | Secondary battery and automobile |
| US11581615B2 (en) | 2018-01-16 | 2023-02-14 | Contemporary Amperex Technology Co., Limited | Connection member and rechargeable battery |
| US11824286B2 (en) | 2018-01-16 | 2023-11-21 | Contemporary Amperex Technology Co., Limited | Connection member and rechargeable battery |
| US11824285B2 (en) | 2018-01-16 | 2023-11-21 | Contemporary Amperex Technology Co., Limited | Connection member and rechargeable battery |
| US11811155B2 (en) | 2018-01-16 | 2023-11-07 | Contemporary Amperex Technology Co., Limited | Connection member and rechargeable battery |
| EP3742522A4 (en) * | 2018-01-16 | 2021-04-07 | Contemporary Amperex Technology Co., Limited | Connection member and rechargeable battery |
| US20200411834A1 (en) * | 2018-03-01 | 2020-12-31 | Contemporary Amperex Technology Co., Limited | Secondary battery and vehicle |
| WO2020239004A1 (en) * | 2019-05-31 | 2020-12-03 | 华为技术有限公司 | Battery and electronic device |
| 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 |
| CN113437447B (en) * | 2021-06-01 | 2023-08-29 | 海亿新能源扬州有限公司 | Lithium ion battery with bending tab and tab protection accessory |
| CN113437447A (en) * | 2021-06-01 | 2021-09-24 | 海亿新能源扬州有限公司 | Lithium ion battery with bent tab and tab protection accessory |
| CN113782921A (en) * | 2021-08-13 | 2021-12-10 | 东莞塔菲尔新能源科技有限公司 | Secondary battery |
| CN114865238B (en) * | 2022-04-22 | 2023-08-22 | 合肥国轩高科动力能源有限公司 | Lithium battery |
| CN114865238A (en) * | 2022-04-22 | 2022-08-05 | 合肥国轩高科动力能源有限公司 | Lithium battery |
| CN115312989A (en) * | 2022-09-09 | 2022-11-08 | 厦门海辰储能科技股份有限公司 | Battery connecting sheet and assembly method thereof, battery pack and electric equipment |
| CN115312989B (en) * | 2022-09-09 | 2023-09-08 | 厦门海辰储能科技股份有限公司 | Battery connecting sheet, assembling method thereof, battery pack and electric equipment |
| CN115472897A (en) * | 2022-10-27 | 2022-12-13 | 厦门海辰储能科技股份有限公司 | Battery, battery module, battery pack and electric equipment |
| CN115472897B (en) * | 2022-10-27 | 2024-01-23 | 厦门海辰储能科技股份有限公司 | Battery, battery module, battery pack and electric equipment |
| CN115528384A (en) * | 2022-11-01 | 2022-12-27 | 厦门海辰储能科技股份有限公司 | Battery, battery module and electric equipment |
| CN115588822A (en) * | 2022-12-12 | 2023-01-10 | 宁德新能源科技有限公司 | Battery and battery pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |
|
| CX01 | Expiry of patent term |