CN1783545A - Soft packaged lithium ion cell pole ear capable of safety discharging air - Google Patents
Soft packaged lithium ion cell pole ear capable of safety discharging air Download PDFInfo
- Publication number
- CN1783545A CN1783545A CNA2004100938348A CN200410093834A CN1783545A CN 1783545 A CN1783545 A CN 1783545A CN A2004100938348 A CNA2004100938348 A CN A2004100938348A CN 200410093834 A CN200410093834 A CN 200410093834A CN 1783545 A CN1783545 A CN 1783545A
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- CN
- China
- Prior art keywords
- hot melt
- discharging air
- lithium ion
- melting point
- ion cell
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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
This invention relates to a flexible package Li ionic cell pole ear capable of discharging gas safely composed of a conduction strip and a low melting point hot melt material processed together with the conduction strip, in which, the melting point of said material is lower than that of the material of the sealing part of the cell packaging film and the material is one or a compound of the modified PP, modified PE, vinyl acetate, terpene compound, turpentine or paraffin with the melting point above 20deg.C,in which, the hot melt glue on said pole ear can turn soft and melt to exhaust gas when the cell reaches to a certain temperature to resolve the problem of safety.
Description
Technical field
The invention belongs to the lithium ion battery structure technical field, but particularly relate to a kind of soft package lithium ion cell polar ear of safety discharging air.
Background technology
Known at present, the conventional battery pole ear that uses is made up of metal conductive strips and ordinary hot melt material, and itself does not possess the defencive function to battery.The open announcement number is that 1540779 Chinese patent discloses name and is called: a kind of flexible packing lithium ion battery safety valve, it is provided with one or more valve openings on battery container, the solid thermo-sensitive material being housed in valve opening and sealing the quick material of valve opening solid thermal is paraffin or stearic acid or PUR or low melting point ethene or propylene copolymer; The open announcement number is that 03155103.3 Chinese patent discloses name and is called: have the bag type secondary battery of emergency vent, and at least one opening features, it is arranged on the hermetic unit, is lower than bag resin material of the fusing point of shape body seal part by fusing point and makes.These two patents are reaching the function that can realize safety discharging air when battery temperature is too high in varying degrees, but have the inconvenient problem of making in varying degrees.
Summary of the invention
The problem of the present invention for existing in the solution known technology, but simply a kind of soft package lithium ion cell polar ear of safety discharging air of technology is provided.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
But the soft package lithium ion cell polar ear of safety discharging air, by bus be fabricated into hot melt material with described bus and form, be characterized in: the fusing point of described hot melt material is lower than the fusing point of battery packaging film hermetic unit material.
The present invention can also adopt following technical measures to realize:
But the soft package lithium ion cell polar ear of safety discharging air is characterized in: the fusing point of described low melting point hot melt material is lower more than 20 ℃ than the fusing point of packaging film hermetic unit material.
But the soft package lithium ion cell polar ear of safety discharging air is characterized in: described low melting point hot melt material is any or a wherein two or more compound in modified polypropene, modified poly ethylene, vinylacetate, terpene compound, rosin, the paraffin.
But the soft package lithium ion cell polar ear of safety discharging air is characterized in: described bus material be in gold, silver, copper, aluminium, the nickel metal material any.
But the soft package lithium ion cell polar ear of safety discharging air is characterized in: described bus material is a material with carbon element.
But the soft package lithium ion cell polar ear of safety discharging air is characterized in: described bus material is a conducting polymer materials.
But the soft package lithium ion cell polar ear of safety discharging air, be characterized in: fusing point is lower than on the low melting point hot melt material of packaging film hermetic unit material more than 20 ℃ be applied to the lug of conventional hot melt material compound, and described low melting point hot melt material is any one or two kinds of above compounds in modified polypropene, modified poly ethylene, vinylacetate, terpene compound, rosin, the paraffin.
Advantage and good effect that the present invention has are: form lug owing to the hot melt material that fusing point is lower than flexible-packed battery packaging film hermetic unit is produced on metal conductive strips, PUR on this lug can soften when battery temperature acquires a certain degree, fusion makes the exhaust of battery opening, both solve the cell safety problem, be convenient to operation again.
Description of drawings
Fig. 1 is the front view of the structural representation of safety discharging air lug directly compound in the embodiment of the invention 1;
Fig. 2 is the vertical view of the structural representation of safety discharging air lug directly compound in the embodiment of the invention 1;
Fig. 3 is the front view of the structural representation of the embodiment of the invention 2 safety discharging air lug that adds the low melting point hot melt material;
Fig. 4 is the vertical view of the structural representation of the embodiment of the invention 2 safety discharging air lug that adds the low melting point hot melt material.
Label among the figure is respectively: 1 is bus, and 2 is the low melting point hot melt material, and 3 is lug, and 4 is conventional PUR.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, low melting point hot melt material 2 directly is compound on the bus 1.The low melting point hot melt material can be one or more the compound in modified polypropene, modified poly ethylene, vinylacetate, terpene compound, rosin, the paraffin; Bus can be metals such as gold, silver, copper, aluminium, nickel, nonmetallic materials such as material with carbon element, conducting polymer materials.The fusing point of low melting point hot melt material is lower more than 20 ℃ than the fusing point of packaging material.
Operating principle of the present invention is, low melting point hot melt material fusion or softening adhesive force with battery packaging material descend when the temperature of battery is elevated to a certain degree, and hot melt material separates with battery packaging material, and the realization safety discharging air is avoided working the mischief.
See also Fig. 2, low melting point hot melt material 2 has been applied to the lug 3 of conventional hot melt material 4 compound on.The low melting point hot melt material can be one or more the compound in modified polypropene, modified poly ethylene, vinylacetate, terpene compound, rosin, the paraffin.One the fusing point that the fusing point of low melting point hot melt material is lower than fusing point in packaging material and the conventional hot melt material is low more than 20 ℃.
Operating principle of the present invention is, low melting point hot melt material fusion or softening adhesive force with battery packaging material descend when the temperature of battery is elevated to a certain degree, and hot melt material separates with battery packaging material, and the realization safety discharging air is avoided working the mischief.
Claims (7)
1. but the soft package lithium ion cell polar ear of a safety discharging air is formed by bus with the described low melting point hot melt material that is fabricated into, and it is characterized in that: the fusing point of described low melting point hot melt material is lower than the fusing point of battery packaging film hermetic unit material.
2. but the soft package lithium ion cell polar ear of a kind of safety discharging air according to claim 1 is characterized in that: the fusing point of described low melting point hot melt material is lower more than 20 ℃ than the fusing point of packaging film hermetic unit material.
3. but the soft package lithium ion cell polar ear of a kind of safety discharging air according to claim 1 is characterized in that: described low melting point hot melt material is any or a wherein two or more compound in modified polypropene, modified poly ethylene, vinylacetate, terpene compound, rosin, the paraffin.
4. but the soft package lithium ion cell polar ear of a kind of safety discharging air according to claim 1 is characterized in that: in described bus material gold, silver, copper, aluminium, the nickel metal material any.
5. but the soft package lithium ion cell polar ear of a kind of safety discharging air according to claim 1, it is characterized in that: described bus material is a material with carbon element.
6. but the soft package lithium ion cell polar ear of a kind of safety discharging air according to claim 1, it is characterized in that: described bus material is a conducting polymer materials.
7. but the soft package lithium ion cell polar ear of a safety discharging air, it is characterized in that: fusing point is lower than on the low melting point hot melt material of packaging film hermetic unit material more than 20 ℃ be applied to the lug of conventional hot melt material compound, and described low melting point hot melt material is any one or two kinds of above compounds in modified polypropene, modified poly ethylene, vinylacetate, terpene compound, rosin, the paraffin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100938348A CN1783545A (en) | 2004-12-03 | 2004-12-03 | Soft packaged lithium ion cell pole ear capable of safety discharging air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100938348A CN1783545A (en) | 2004-12-03 | 2004-12-03 | Soft packaged lithium ion cell pole ear capable of safety discharging air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1783545A true CN1783545A (en) | 2006-06-07 |
Family
ID=36773454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100938348A Pending CN1783545A (en) | 2004-12-03 | 2004-12-03 | Soft packaged lithium ion cell pole ear capable of safety discharging air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1783545A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111261828A (en) * | 2020-05-07 | 2020-06-09 | 北京小米移动软件有限公司 | Safety valve with built-in battery core and lithium battery using same |
| CN113285181A (en) * | 2021-05-14 | 2021-08-20 | 格远电子科技（上海）有限公司 | High-temperature-ineffectible tab and manufacturing method thereof |
| WO2021195853A1 (en) * | 2020-03-30 | 2021-10-07 | 宁德新能源科技有限公司 | Cell and electronic device having same |
-
2004
- 2004-12-03 CN CNA2004100938348A patent/CN1783545A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021195853A1 (en) * | 2020-03-30 | 2021-10-07 | 宁德新能源科技有限公司 | Cell and electronic device having same |
| CN113597703A (en) * | 2020-03-30 | 2021-11-02 | 宁德新能源科技有限公司 | Battery cell and electronic device with same |
| CN111261828A (en) * | 2020-05-07 | 2020-06-09 | 北京小米移动软件有限公司 | Safety valve with built-in battery core and lithium battery using same |
| CN113285181A (en) * | 2021-05-14 | 2021-08-20 | 格远电子科技（上海）有限公司 | High-temperature-ineffectible tab and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |