CN205194769U - Take overcurrent protection's lithium battery tab - Google Patents
Take overcurrent protection's lithium battery tab Download PDFInfo
- Publication number
- CN205194769U CN205194769U CN201520975623.0U CN201520975623U CN205194769U CN 205194769 U CN205194769 U CN 205194769U CN 201520975623 U CN201520975623 U CN 201520975623U CN 205194769 U CN205194769 U CN 205194769U
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- CN
- China
- Prior art keywords
- metal tape
- strap
- lithium battery
- ptc material
- overcurrent protection
- 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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- 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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a take overcurrent protection's lithium battery tab, including first strap, second strap, the overlap joint be in the same place around first strap and the second strap, and first strap and second strap are provided with relative lower concave part respectively in the lap -joint, are provided with the PTC material on the lower concave part of first strap or second strap, and first strap and second strap pass through the electric connection of PTC material. The utility model discloses a take overcurrent protection's lithium battery tab sets up the PTC material between the strap, the PTC material forms the thermistor who establishes ties between the strap, meet as lithium cell in use to overflow or during the overheated condition, and the resistance grow of PTC material, it is not influenced inside the protection lithium cell, PTC material cooling back retrieval arrives initial state, the used repeatedly of being convenient for. The utility model discloses a take overcurrent protection's lithium battery tab can effectively improve the life and the security performance of lithium cell.
Description
Technical field
The utility model relates to field of lithium, particularly relates to a kind of lithium battery pole ear with overcurrent protection.
Background technology
In the present age, lithium battery is widely used on electronic product, and the security performance of lithium battery receives much concern.The lug of lithium battery is responsible for connecting battery electrode and electrode interior; when meeting circuit overcurrent or battery is overheated; if the lug of battery can provide overcurrent protection and overtemperature protection; the connection of timely cut-out battery and external circuit; then can protect inside battery not by the impact of external circuit; play the effect of protection battery, improve useful life and the security performance of battery.
Utility model content
In order to solve the problems of the technologies described above, the purpose of this utility model is to provide a kind of lithium battery pole ear with overcurrent protection, for lithium battery provides overcurrent protection, overtemperature protection, improves useful life and the security performance of lithium battery.
The utility model is the technical scheme solving the employing of its technical problem:
A kind of lithium battery pole ear with overcurrent protection; comprise the first metal tape, the second metal tape; overlap before and after described first metal tape and the second metal tape; described first metal tape is respectively arranged with relative lower concave part with the second metal tape in lap-joint; the lower concave part of described first metal tape or the second metal tape is provided with ptc material, and the first metal tape and the second metal tape are electrically connected by ptc material.
As the further improvement of technique scheme, the lap-joint of described first metal tape and the second metal tape is provided with dielectric film.
As the further improvement of technique scheme, described first metal tape or the second metal tape are provided with dielectric film.
As the further improvement of technique scheme, described first metal tape and the second metal tape are same metal.
As the further improvement of technique scheme, described first metal tape and the second metal tape are dissimilar metal.
As the further improvement of technique scheme, described first metal tape is nickel strap, and described second metal tape is aluminium strip.
The beneficial effects of the utility model are:
The lithium battery pole ear of band overcurrent protection of the present utility model is provided with ptc material between two strip metal bands, and metal tape is electrically connected by ptc material, and ptc material forms the thermistor of series connection between metal tape.When lithium battery normally uses, the resistance of ptc material is less, and when lithium battery in use runs into overcurrent or overheated situation, the temperature of ptc material raises, resistance sharply becomes large, limit electric current, play the effect of overcurrent protection and overtemperature protection, protection lithium battery interior is unaffected; Can initial conditions be returned to after ptc material cooling, be convenient to reuse.The lithium battery pole ear of band overcurrent protection of the present utility model effectively improves useful life and the security performance of battery.
Accompanying drawing explanation
Be described further below in conjunction with accompanying drawing and example.
Fig. 1 is the structural representation of the lithium battery pole ear of the utility model band overcurrent protection.
Embodiment
With reference to Fig. 1; a kind of lithium battery pole ear with overcurrent protection that the utility model provides; comprise the first metal tape 1, second metal tape 2 and dielectric film 4; overlap before and after first metal tape 1 and the second metal tape 2; first metal tape 1 or the second metal tape 2 are provided with ptc material 3 in lap-joint; first metal tape 1 and the second metal tape 2 are electrically connected by ptc material 3, and dielectric film 4 covers the lap-joint of the first metal tape 1 and the second metal tape 2.
The thickness of described first metal tape 1 and the second metal tape 2 is generally between 0.7mm to 1.2mm, (thickness here refers to a kind of thickness of metal tape, or two kinds of metal tape thickness sums, the thickness of single lug metal tape that my department is producing lug is at present 0.1mm) thickness of the lap-joint of the first metal tape 1 and the second metal tape 2 is preferably at 2mm, unaffected with the stickup of the dielectric film 4 ensureing lap-joint.Therefore, described first metal tape 1 is respectively arranged with relative lower concave part 11,21 with the second metal tape 2 in lap-joint, and the thickness of lower concave part 11,21 is less than the thickness of other positions of metal tape; The lower concave part 11 of the first metal tape 1 or the lower concave part 21 of the second metal tape 2 are provided with one deck ptc material 3, and both are electrically connected by ptc material 3.
In addition, dielectric film 4 also can be arranged on other positions on the first metal tape 1 or the second metal tape 2.
Further, described first metal tape 1 and the second metal tape 2 can be same metal or dissimilar metal.As wherein a kind of Common examples, described first metal tape 1 is nickel strap, and the second metal tape 2 is aluminium strip.
The lithium battery pole ear of band overcurrent protection of the present utility model is provided with ptc material 3 between two strip metal bands, and metal tape is electrically connected by ptc material 3, and ptc material 3 forms the thermistor of series connection between metal tape.When lithium battery normally uses, the resistance of ptc material 3 is less, and when lithium battery in use runs into overcurrent or overheated situation, the temperature of ptc material 3 raises, resistance sharply becomes large, limit electric current, play the effect of overcurrent protection and overtemperature protection, protection lithium battery interior is unaffected; Ptc material 3 can return to initial conditions after cooling, and is convenient to reuse.The lithium battery pole ear of band overcurrent protection of the present utility model effectively improves useful life and the security performance of battery.
The above, just preferred embodiment of the present utility model, the utility model is not limited to above-mentioned execution mode, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection range of the present utility model.
Claims (6)
1. the lithium battery pole ear with overcurrent protection, it is characterized in that: comprise the first metal tape (1), the second metal tape (2), overlap before and after described first metal tape (1) and the second metal tape (2), described first metal tape (1) is respectively arranged with relative lower concave part (11 with the second metal tape (2) in lap-joint; 21), the lower concave part (11 of described first metal tape (1) or the second metal tape (2); 21) be provided with ptc material (3) on, the first metal tape (1) and the second metal tape (2) are electrically connected by ptc material (3).
2. a kind of lithium battery pole ear with overcurrent protection according to claim 1, is characterized in that: the lap-joint of described first metal tape (1) and the second metal tape (2) is provided with dielectric film (4).
3. a kind of lithium battery pole ear with overcurrent protection according to claim 1, is characterized in that: described first metal tape (1) or the second metal tape (2) are provided with dielectric film (4).
4. a kind of lithium battery pole ear with overcurrent protection according to Claims 2 or 3, is characterized in that: described first metal tape (1) and the second metal tape (2) are same metal.
5. a kind of lithium battery pole ear with overcurrent protection according to Claims 2 or 3, is characterized in that: described first metal tape (1) and the second metal tape (2) are dissimilar metal.
6. a kind of lithium battery pole ear with overcurrent protection according to claim 5, is characterized in that: described first metal tape (1) is nickel strap, and described second metal tape (2) is aluminium strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520975623.0U CN205194769U (en) | 2015-11-30 | 2015-11-30 | Take overcurrent protection's lithium battery tab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520975623.0U CN205194769U (en) | 2015-11-30 | 2015-11-30 | Take overcurrent protection's lithium battery tab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205194769U true CN205194769U (en) | 2016-04-27 |
Family
ID=55787730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520975623.0U Active CN205194769U (en) | 2015-11-30 | 2015-11-30 | Take overcurrent protection's lithium battery tab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205194769U (en) |
Cited By (1)
| 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 |
-
2015
- 2015-11-30 CN CN201520975623.0U patent/CN205194769U/en active Active
Cited By (1)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |