CN203103384U - Flexible-package lithium ion battery tab with overcurrent protection function - Google Patents
Flexible-package lithium ion battery tab with overcurrent protection function Download PDFInfo
- Publication number
- CN203103384U CN203103384U CN2012207350498U CN201220735049U CN203103384U CN 203103384 U CN203103384 U CN 203103384U CN 2012207350498 U CN2012207350498 U CN 2012207350498U CN 201220735049 U CN201220735049 U CN 201220735049U CN 203103384 U CN203103384 U CN 203103384U
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- China
- Prior art keywords
- lithium ion
- ion battery
- package lithium
- flexible
- overcurrent protection
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- 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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Abstract
The utility model discloses a flexible-package lithium ion battery tab with an overcurrent protection function and particularly relates to a tab having the overcurrent protection function and the universality for all the flexible-package lithium ion batteries. The flexible-package lithium ion battery tab comprises a tab and PP (polypropylene) hot melt glue and is characterized in that a thermistor is mounted on the tab. Compared with the prior art, the flexible-package lithium ion battery tab has the advantages that the safety performance of the flexible-package lithium ion battery can be effectively improved, the safety risks in the actual use of customers are lowered, and the potential safety hazard that the battery is on fire due to the device problem in a production process is lowered.
Description
Technical field
The utility model relates to the lithium ion battery production technical field, particularly relates to a kind of soft package lithium ion cell polar ear with overcurrent protection function.
Background technology
Advantages such as lithium ion battery has voltage height, specific energy height, recycles often, memory time is long, not only on portable electric appts, be used widely as mobile phone, Digital Video and laptop computer, and be widely used in big-and-middle-sized electrical equipment aspects such as electric automobile, electric bicycle and electric tool, therefore more and more higher to the requirement of lithium ion battery electrical property and security performance, and polymer Li-ion battery more and more is subjected to everybody favor with good performance and remarkable security performance.
But in the process that reality is used, still there is the safety problem of battery, particularly through too much going here and there assembled battery also.This mainly is because electric core performance inevitably has inconsistent situation, and then can cause certain battery the problem of putting to occur flowing through, and may use the later stage client and bring security risk.
Summary of the invention
The purpose of this utility model is at the technological deficiency that exists in the prior art; and provide a kind of soft package lithium ion cell polar ear with overcurrent protection function; to improve the security performance of flexible packing lithium ion battery; be reduced in the security risk of the actual use of client, and reduce the potential safety hazard that causes battery to catch fire because of plant issue in the production process.
For realizing that the technical scheme that the purpose of this utility model adopted is: a kind of soft package lithium ion cell polar ear with overcurrent protection function, comprise lug, PP PUR, it is characterized in that on the described lug thermistor being installed.
Described lug is the negative electrode lug of lithium ion battery.
Described lug is metallic nickel lug or metallic copper nickel plating lug.
Operation principle of the present utility model is: on band glue lug thermistor is installed, with its negative electrode lug as lithium ion battery, is made this lithium ion battery have overcurrent protection function.When battery overcharges through big electric current, surface temperature raises gradually, but to uniform temperature, negative electrode lug starts defencive function, and internal resistance increases, and electric current sharply reduces, and surface temperature descends, and makes lithium ion battery when big electric current overcharges.
Compared with prior art, the beneficial effects of the utility model are: can effectively improve the security performance of flexible packing lithium ion battery, be reduced in the security risk of the actual use of client, and reduce the potential safety hazard that causes battery to catch fire because of plant issue in the production process.
Description of drawings
Figure 1 shows that the structural representation of soft package lithium ion cell polar ear;
Figure 2 shows that soft package lithium ion cell polar ear is installed in the structural representation on the lithium ion battery;
Figure 3 shows that and use the related datagram of the utility model with lug of overcurrent protection function by the experiment of battery overcharge abuse.
Among the figure: the 1st, lug, the 2nd, thermistor, the 3rd, PP PUR, the 4th, lithium ion battery.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Embodiment: be illustrated in figure 1 as the related soft package lithium ion cell polar ear of the utility model, promptly have greater than the intransitable function of rated current with overcurrent protection function; Specifically, comprise lug 1, PP PUR 3 and thermistor 2.So-called lug 1 and PP PUR 3 gather together, and those skilled in the art generally are called " band glue lug ".So-called thermistor is the commercially available prod, and its English abbreviates " TCO " as.
Described lug 1 is the negative electrode lug of lithium ion battery.
Described lug 1 is metallic nickel lug or metallic copper nickel plating lug.
As shown in Figure 2, on band glue lug, thermistor is installed,, is made this lithium ion battery have overcurrent protection function its negative electrode lug as lithium ion battery 4.When battery overcharges through big electric current, surface temperature raises gradually, but to uniform temperature, negative electrode lug starts defencive function; Be illustrated in figure 3 as this lithium ion battery test curve of abuse experiment that overcharges; as can be seen from the figure; battery overcharges through big electric current; surface temperature raises gradually, but to uniform temperature, negative electrode lug starts defencive function; internal resistance increases; electric current sharply reduces, and surface temperature descends, and cell safety overcharges by big electric current and abuses experiment.
Compared with prior art, the beneficial effects of the utility model are: can effectively improve the security performance of flexible packing lithium ion battery, be reduced in the security risk of the actual use of client, and reduce the potential safety hazard that causes battery to catch fire because of plant issue in the production process.
The above only is a preferred implementation of the present utility model; should be noted that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. the soft package lithium ion cell polar ear with overcurrent protection function comprises lug, PP PUR, it is characterized in that on the described lug thermistor being installed.
2. a kind of soft package lithium ion cell polar ear with overcurrent protection function according to claim 1 is characterized in that described lug is the negative electrode lug of lithium ion battery.
3. a kind of soft package lithium ion cell polar ear with overcurrent protection function according to claim 2 is characterized in that described lug is metallic nickel lug or metallic copper nickel plating lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207350498U CN203103384U (en) | 2012-12-27 | 2012-12-27 | Flexible-package lithium ion battery tab with overcurrent protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207350498U CN203103384U (en) | 2012-12-27 | 2012-12-27 | Flexible-package lithium ion battery tab with overcurrent protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203103384U true CN203103384U (en) | 2013-07-31 |
Family
ID=48854763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207350498U Expired - Lifetime CN203103384U (en) | 2012-12-27 | 2012-12-27 | Flexible-package lithium ion battery tab with overcurrent protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203103384U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950642A (en) * | 2017-12-21 | 2019-06-28 | 宁德新能源科技有限公司 | A kind of battery core and battery |
-
2012
- 2012-12-27 CN CN2012207350498U patent/CN203103384U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950642A (en) * | 2017-12-21 | 2019-06-28 | 宁德新能源科技有限公司 | A kind of battery core and battery |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |