CN204680718U - A kind of polymer lithium ion battery pole ear - Google Patents
A kind of polymer lithium ion battery pole ear Download PDFInfo
- Publication number
- CN204680718U CN204680718U CN201520446593.4U CN201520446593U CN204680718U CN 204680718 U CN204680718 U CN 204680718U CN 201520446593 U CN201520446593 U CN 201520446593U CN 204680718 U CN204680718 U CN 204680718U
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- China
- Prior art keywords
- lug
- tab
- outside
- battery pole
- lithium ion
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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
Abstract
The utility model discloses a kind of polymer lithium ion battery pole ear, comprise lug body and tab, described lug body and tab hot-melt adhesive paste, described lug body comprises the outside lug laid respectively at outside tab and the inside lug be positioned at inside tab, described outside lug and the hot-melt adhesive paste place of tab outer end are that lug is separated place, described inner lug is two or more, two or more inner lug is separated from lug separation, the thickness of single inner lug is less than the thickness of outside lug, each inner lug all can with battery pole piece welding.The advantage that the utility model structure is simple, cost is low, battery discharge multiplying power is high and fail safe is good.
Description
Technical field
The utility model relates to battery pole ear, specifically refers to a kind of polymer lithium ion battery pole ear.
Background technology
At present, the lug of traditional polymer Li-ion battery, mostly be independent a slice lug, this sheet lug distance a distance, outer end hot-melt adhesive paste has tab, lug is divided into outside lug and inner lug by described tab, described inner lug welds with a slice or several both positive and negative polarity pole pieces, the inside lug thickness of this kind of traditional extreme ear structure is identical with outside lug thickness, it welds with a slice or several both positive and negative polarity pole pieces, there is following deficiency: 1, when battery needs multiplying power discharging (during heavy-current discharge), because the impedance of this lug self is larger, and it is larger with the contact impedance of pole piece weld, discharging current is in weld concentrations, battery is caused to discharge, 2, lug temperature rises, and produces potential safety hazard, finally causes the security risks such as the decline of battery discharge high rate performance and blast on fire.
Utility model content
The purpose of this utility model is to provide the polymer lithium ion battery pole ear that a kind of structure is simple, cost is low, battery discharge multiplying power is high and fail safe is good.
The utility model can be achieved through the following technical solutions:
A kind of polymer lithium ion battery pole ear, comprise lug body and tab, described lug body and tab hot-melt adhesive paste, described lug body comprises the outside lug be positioned at outside tab and the inside lug be positioned at inside tab, described outside lug and the hot-melt adhesive paste place outside tab are that lug is separated place, described inner lug is two or more, two or more inner lug is separated from lug separation, the thickness of single inner lug is less than the thickness of outside lug, each inner lug all can with battery pole piece welding.The utility model polymer lithium ion battery pole ear is formed primarily of inner lug, outside lug and tab, and its parts are few, and structure is simple, and parts used are common materials, abundant raw material source, and cost is low; Inner lug is two or more, each inner lug can weld pole piece, decrease the impedance of lug self, effectively prevent a multiple pole piece of inner tab welding simple in conventional art and cause contact impedance to strengthen, and then the situation causing electric current concentrations to cause battery to discharge finally to cause battery discharge high rate performance to decline occurs and the potential safety hazard of blast on fire, effectively improve the fail safe that battery discharge multiplying power and battery use.
Further, each inner tab welding a slice or two panels or multi-disc battery pole piece.Each inner lug can weld pole piece, under the same conditions, the multiple pole piece dispersions being welded on an inner lug in conventional art are welded on the multiple inner lug mentioned in the technical program, decrease the impedance of lug self, effectively prevent a multiple pole piece of inner tab welding simple in conventional art and cause contact impedance to strengthen, and then the situation causing electric current concentrations to cause battery to discharge finally to cause battery discharge high rate performance to decline occurs and the potential safety hazard of blast on fire, effectively improve the fail safe of battery discharge multiplying power and battery use.
Further, described outside lug and inner lug are one of the forming structure or Split type structure.
Further, described tab is solid gum.
Further, the width of described tab is greater than the width of lug body, effectively guarantees that tab is firmly connected with lug body.
The utility model polymer lithium ion battery pole ear, compared with prior art, has following beneficial effect:
The first, structure is simple, and the utility model polymer lithium ion battery pole ear is formed primarily of inner lug, outside lug and tab, and its parts are few, and structure is simple;
The second, cost is low, and the utility model polymer lithium ion battery pole ear is formed primarily of inner lug, outside lug and tab, and its parts are few, and parts used are common materials, abundant raw material source, and cost is low;
Three, battery discharge multiplying power is high, the utility model polymer lithium ion battery pole ear is formed primarily of inner lug, outside lug and tab, inner lug is two or more, each inner lug can weld pole piece, effectively prevent a multiple pole piece of inner tab welding simple in conventional art and cause contact impedance to strengthen, and then the situation causing electric current concentrations to cause battery to discharge finally to cause battery discharge high rate performance to decline occurs, effectively improves battery discharge multiplying power;
Four, fail safe is good, the utility model polymer lithium ion battery pole ear is formed primarily of inner lug, outside lug and tab, inner lug is two or more, each inner lug can weld pole piece, effectively prevent a multiple pole piece of inner tab welding simple in conventional art causes contact impedance to strengthen, and then cause the heating of electric current concentrations generation lug finally to cause the potential safety hazard of blast on fire, effectively improve the fail safe that battery uses.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the utility model polymer lithium ion battery pole ear;
Reference numeral is: 1, lug body, 1-1, outside lug, 1-2, inner lug, 2, tab, 3, lug separation place.
Embodiment
In order to make those skilled in the art person understand the technical solution of the utility model better, below in conjunction with embodiment and accompanying drawing, the utility model product is described in further detail.
As shown in Figure 1, a kind of polymer lithium ion battery pole ear, comprises lug body 1 and tab 2, and described lug body 1 and tab 2 hot-melt adhesive paste, described tab 2 is solid gum, and the width of described tab 2 is greater than the width of lug body 1.Described lug body 1 comprises the inside lug 1-2 being positioned at outside lug 1-1 outside tab 2 and being positioned at inside tab 2, and described outside lug 1-1 and inner lug 1-2 is one of the forming structure or Split type structure.Described outside lug 1-1 and the hot-melt adhesive paste place outside tab 2 are that lug is separated place 3, described inner lug 1-2 is two or more, two or more inner lug 1-2 is separated from lug separation 3, the thickness of single inner lug 1-2 is less than the thickness of outside lug 1-1, each inner lug 1-2 all can with battery pole piece welding, and each inner lug 1-2 all can weld a slice or two panels or multi-disc battery pole piece.The structure technology scheme of the utility model polymer lithium ion battery pole ear, when cost of material is constant, cleverly the multiple pole piece dispersions be welded on an inner lug 1-2 are welded on multiple inner lug 1-2, decrease the impedance of inner lug 1-2 self, effectively prevent an inner lug 1-2 simple in conventional art weld multiple pole piece and cause contact impedance to strengthen, and then the situation causing electric current concentrations to cause battery to discharge finally to cause battery discharge high rate performance to decline occurs and the potential safety hazard of blast on fire, effectively improve the fail safe of battery discharge multiplying power and battery use.
The above, be only preferred embodiment of the present utility model, not does any pro forma restriction to the utility model; The those of ordinary skill of all industry all can shown in by specification accompanying drawing and the above and implement the utility model swimmingly; But all those skilled in the art are not departing within the scope of technical solutions of the utility model, disclosed above technology contents can be utilized and make a little change, modify with differentiation equivalent variations, be Equivalent embodiments of the present utility model; Meanwhile, all according to substantial technological of the present utility model to the change of any equivalent variations that above embodiment is done, modify and differentiation etc., within the protection range all still belonging to the technical solution of the utility model.
Claims (5)
1. a polymer lithium ion battery pole ear, comprise lug body (1) and tab (2), described lug body (1) and tab (2) hot-melt adhesive paste, described lug body (1) comprises the outside lug (1-1) being positioned at tab (2) outside and the inside lug (1-2) being positioned at tab (2) inner side, it is characterized in that: described outside lug (1-1) is that lug is separated place (3) with the hot-melt adhesive paste place in tab (2) outside, described inner lug (1-2) is for two or more, two or more inner lug (1-2) is separated from lug separation (3), the thickness of single inner lug (1-2) is less than the thickness of outside lug (1-1), each inner lug (1-2) all can with battery pole piece welding.
2. polymer lithium ion battery pole ear according to claim 1, is characterized in that: each inner lug (1-2) welds a slice or two panels or multi-disc battery pole piece.
3. polymer lithium ion battery pole ear according to claim 1 and 2, is characterized in that: described outside lug (1-1) and inner lug (1-2) are one of the forming structure or Split type structure.
4. polymer lithium ion battery pole ear according to claim 3, is characterized in that: described tab (2) is solid gum.
5. polymer lithium ion battery pole ear according to claim 4, is characterized in that: the width of described tab (2) is greater than the width of lug body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520446593.4U CN204680718U (en) | 2015-06-26 | 2015-06-26 | A kind of polymer lithium ion battery pole ear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520446593.4U CN204680718U (en) | 2015-06-26 | 2015-06-26 | A kind of polymer lithium ion battery pole ear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204680718U true CN204680718U (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520446593.4U Active CN204680718U (en) | 2015-06-26 | 2015-06-26 | A kind of polymer lithium ion battery pole ear |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024033A (en) * | 2015-07-20 | 2015-11-04 | 无锡市百事杰金属制品科技有限公司 | Tab of lithium-ion battery with two conductors |
| CN109273656A (en) * | 2018-08-21 | 2019-01-25 | 厦门纬达科技有限公司 | A kind of manufacture craft of the Multilayer pole ear of flexible package lithium cell |
| CN111430653A (en) * | 2020-01-20 | 2020-07-17 | 蜂巢能源科技有限公司 | Battery module, battery package and vehicle |
-
2015
- 2015-06-26 CN CN201520446593.4U patent/CN204680718U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024033A (en) * | 2015-07-20 | 2015-11-04 | 无锡市百事杰金属制品科技有限公司 | Tab of lithium-ion battery with two conductors |
| CN109273656A (en) * | 2018-08-21 | 2019-01-25 | 厦门纬达科技有限公司 | A kind of manufacture craft of the Multilayer pole ear of flexible package lithium cell |
| CN111430653A (en) * | 2020-01-20 | 2020-07-17 | 蜂巢能源科技有限公司 | Battery module, battery package and vehicle |
| CN111430653B (en) * | 2020-01-20 | 2022-05-27 | 蜂巢能源科技有限公司 | Battery module, battery package and vehicle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |