CN203631652U - Lithium ion battery tab connecting structure and lithium ion battery - Google Patents
Lithium ion battery tab connecting structure and lithium ion battery Download PDFInfo
- Publication number
- CN203631652U CN203631652U CN201320787111.2U CN201320787111U CN203631652U CN 203631652 U CN203631652 U CN 203631652U CN 201320787111 U CN201320787111 U CN 201320787111U CN 203631652 U CN203631652 U CN 203631652U
- Authority
- CN
- China
- Prior art keywords
- pole
- lithium ion
- ear
- thermistor
- tab
- 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.)
- Expired - Fee Related
Links
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 27
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 230000000903 blocking effect Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- LDVVMCZRFWMZSG-UHFFFAOYSA-N captan Chemical compound C1C=CCC2C(=O)N(SC(Cl)(Cl)Cl)C(=O)C21 LDVVMCZRFWMZSG-UHFFFAOYSA-N 0.000 abstract 4
- 230000004888 barrier function Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
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 provides a lithium ion battery tab connecting structure and a lithium ion battery. Different from the conventional tab connecting structure that a pole piece tab is directly electrically connected with a cap tab, the lithium ion battery tab connecting structure has the beneficial effects that the pole piece tab and the cap tab are electrically connected by a thermosensitive resistor which is arranged between the pole piece tab and the cap tab in serial connection manner to form a conductor. If the heat passes through the thermosenstive resistor, the resistance of the thermosensitive resistor 3 is increased along the increased temperature due to the characteristics, and finally the electric connection between the pole piece tab and the cap tab is disconnected, so that the further transferring of the heat can be prevented. When the temperature is lowered, the resistance of the thermosensitive resistor is reduced, the thermosensitive resistor is restored to the normal work, and a function for repeatedly protecting the battery can be realized.
Description
Technical field
The utility model relates to a kind of battery structure, refers in particular to a kind of lithium ion cell polar ear syndeton and lithium ion battery.
Background technology
Existing lithium ion cell polar ear inside is connected with block lug by a whole piece lug, once it connects rear battery and occurs external short circuit, the heat that produced thus can be delivered between both positive and negative polarity pole piece and barrier film by lug heat, cause barrier film to shrink pole piece and be connected to form short circuit, have the danger of blast.
Utility model content
The purpose of this utility model is to have overcome above-mentioned defect, and a kind of explosion-proof lithium ion cell polar ear syndeton and lithium ion battery are provided.
The purpose of this utility model is achieved in that a kind of lithium ion cell polar ear syndeton, and it comprises the pole-piece pole-ear of electrical connection and the lug of blocking a shot, and its improvements are: it also comprises thermistor; Between described pole-piece pole-ear and block lug, be electrically connected by being connected in series thermistor;
In said structure, described pole-piece pole-ear, thermistor and the stacked setting of block lug; Described pole-piece pole-ear and the block corresponding overlay region that is provided with of lug, described thermistor is located in the overlay region of pole-piece pole-ear and block lug.
In said structure, described thermistor is paster thermistor, E shape thermistor or T shape thermistor.
The utility model also provides a kind of lithium ion battery, and it comprises battery core, and battery core leads to pole piece, and its improvements are: it also comprises lithium ion cell polar ear syndeton as above; Described pole piece is electrically connected with pole-piece pole-ear;
In said structure, it also comprises block and block rivet; Described block lug is connected on block by block rivet.
Directly different with the structure of block lug electrical connection than pole-piece pole-ear in common electrode tab connection structure, the beneficial effects of the utility model be pole-piece pole-ear and block lug be by between the thermistor that is connected in series be electrically connected formation conductor.Thus, if heat by thermistor, thermistor 3 meets that temperature rises and resistance increases due to self-characteristic, finally reach and disconnect being electrically connected of pole-piece pole-ear and block lug, thereby placement heat further transmits.And when temperature decline, thermistor resistance declines can recover again normal work, can repeatedly play the effect of protection battery.
Accompanying drawing explanation
Below in conjunction with accompanying drawing in detail concrete structure of the present utility model is described in detail
Fig. 1 is structure side view of the present utility model;
Fig. 2 is structure vertical view of the present utility model.
1-pole piece; 2-pole-piece pole-ear; 3-thermistor; The 4-lug of blocking a shot; The 5-rivet of blocking a shot; 6-block.
Embodiment
By describing technology contents of the present utility model, structural feature in detail, being realized object and effect, below in conjunction with execution mode and coordinate accompanying drawing to be explained in detail.
Refer to Fig. 1 and Fig. 2, a kind of lithium ion cell polar ear syndeton of present embodiment, it comprises pole-piece pole-ear 2, thermistor 3 and block lug 4.Directly different with the structure that block lug 4 is electrically connected from pole-piece pole-ear in electrode tab connection structure in the past 2, in the art of this patent pole-piece pole-ear 2 and block lug 4 be by between the thermistor 3 that is connected in series be electrically connected formation conductors.Thus, if heat by thermistor 3, thermistor 3 meets that temperature rises and resistance increases due to self-characteristic, finally reach and disconnect being electrically connected of pole-piece pole-ear 2 and block lug 4, thereby placement heat further transmits; And when temperature decline, thermistor 3 resistance decline and can recover again normal work.
As an embodiment, pole-piece pole-ear 2, thermistor 3 and the stacked setting of block lug 4 in said structure.Concrete, the corresponding overlay region that is provided with, position connecting with block lug 4 at pole-piece pole-ear 2, described thermistor 3 is located in this overlay region of pole-piece pole-ear 2 and block lug 4.Adopt this structure not only can make above-mentioned three parts connect more compact, intensity is good, and can effectively reduce the internal resistance being connected with block lug 4 with pole-piece pole-ear 2.
As an embodiment, described thermistor is paster thermistor, E shape thermistor or T shape thermistor.The thermistor of this shape can make the electrode tab connection structure of final molding have better electric conductivity.
The utility model also provides a kind of lithium ion battery, and it comprises battery core, and battery core leads to pole piece 1, and this kind of battery adopted lithium ion cell polar ear syndeton as above.Pole piece 1 is electrically connected with pole-piece pole-ear 2.
Thus, adopt the lithium ion battery of this technology once encounter external short circuit, when heat passes through thermistor 3 by lug heat transfer process, thermistor 3 is because self-characteristic is met temperature rising and resistance increase, finally reach and disconnect pole-piece pole-ear 2 and the object being electrically connected of lug 4 of blocking a shot, and then avoid heat to be delivered between both positive and negative polarity pole piece and barrier film and cause barrier film to shrink the danger that pole piece is connected to form short circuit and can causes blast.Dynamical lithium-ion battery lug shape and structure is obtained complete, improved the security performance of lithium-ion-power cell.
As an embodiment, it also comprises block 6 and block rivet 5.Block lug 4 in lithium ion cell polar ear syndeton is connected on block by 6 rivets of blocking a shot.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. a lithium ion cell polar ear syndeton, it comprises the pole-piece pole-ear of electrical connection and the lug of blocking a shot, and it is characterized in that: it also comprises thermistor; Between described pole-piece pole-ear and block lug, be electrically connected by being connected in series thermistor.
2. lithium ion cell polar ear syndeton as claimed in claim 1, is characterized in that: described pole-piece pole-ear, thermistor and the stacked setting of block lug; Described pole-piece pole-ear and the block corresponding overlay region that is provided with of lug, described thermistor is located in the overlay region of pole-piece pole-ear and block lug.
3. lithium ion cell polar ear syndeton as claimed in claim 1, is characterized in that: described thermistor is paster thermistor, E shape thermistor or T shape thermistor.
4. a lithium ion battery, it comprises battery core, battery core leads to pole piece, it is characterized in that: it also comprises the lithium ion cell polar ear syndeton as described in claim 1-3 any one; Described pole piece is electrically connected with pole-piece pole-ear.
5. lithium ion battery as claimed in claim 4, is characterized in that: it also comprises block and block rivet; Described block lug is connected on block by block rivet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320787111.2U CN203631652U (en) | 2013-12-02 | 2013-12-02 | Lithium ion battery tab connecting structure and lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320787111.2U CN203631652U (en) | 2013-12-02 | 2013-12-02 | Lithium ion battery tab connecting structure and lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203631652U true CN203631652U (en) | 2014-06-04 |
Family
ID=50818101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320787111.2U Expired - Fee Related CN203631652U (en) | 2013-12-02 | 2013-12-02 | Lithium ion battery tab connecting structure and lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203631652U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449148A (en) * | 2015-11-30 | 2016-03-30 | 江门市拓联电子科技有限公司 | Lithium battery tab with overcurrent production |
| CN105914334A (en) * | 2015-08-12 | 2016-08-31 | 北京长城华冠汽车科技股份有限公司 | Electrode tab connection device, power battery and automobile |
| CN113097660A (en) * | 2021-03-30 | 2021-07-09 | 东莞新能安科技有限公司 | Electrochemical device and power utilization device using same |
| CN114865165A (en) * | 2022-05-24 | 2022-08-05 | 厦门海辰新能源科技有限公司 | Electrical connection assembly |
-
2013
- 2013-12-02 CN CN201320787111.2U patent/CN203631652U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914334A (en) * | 2015-08-12 | 2016-08-31 | 北京长城华冠汽车科技股份有限公司 | Electrode tab connection device, power battery and automobile |
| CN105914334B (en) * | 2015-08-12 | 2018-07-17 | 北京长城华冠汽车科技股份有限公司 | A kind of lug attachment device, power battery and automobile |
| CN105449148A (en) * | 2015-11-30 | 2016-03-30 | 江门市拓联电子科技有限公司 | Lithium battery tab with overcurrent production |
| CN113097660A (en) * | 2021-03-30 | 2021-07-09 | 东莞新能安科技有限公司 | Electrochemical device and power utilization device using same |
| CN114865165A (en) * | 2022-05-24 | 2022-08-05 | 厦门海辰新能源科技有限公司 | Electrical connection assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190715 Granted publication date: 20140604 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210715 Granted publication date: 20140604 |
|
| PD01 | Discharge of preservation of patent | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221114 Address after: 032100 Liu Hu Lan Zhen Dong Bao Cun, Wenshui County, Luliang City, Shanxi Province Patentee after: Shanxi hengpao Special Automobile Co.,Ltd. Address before: 518000 Building 2-6, Zone C, Liantang Industrial City, Shangcun Village, Gongming Street, Guangming New District, Shenzhen, Guangdong Patentee before: SHENZHEN WISEWOD TECHNOLOGY Co.,Ltd. Patentee before: XIAMEN WISEWOD NEW ENERGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221220 Address after: 032100 Liu Hu Lan Zhen Dong Bao Cun, Wenshui County, Luliang City, Shanxi Province Patentee after: Shanxi hengpao Special Automobile Co.,Ltd. Address before: 518000 Building 2-6, Zone C, Liantang Industrial City, Shangcun Village, Gongming Street, Guangming New District, Shenzhen, Guangdong Patentee before: SHENZHEN WISEWOD TECHNOLOGY Co.,Ltd. Patentee before: XIAMEN WISEWOD NEW ENERGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |