CN202977657U - Cylindrical radiating lithium battery - Google Patents
Cylindrical radiating lithium battery Download PDFInfo
- Publication number
- CN202977657U CN202977657U CN2012207396415U CN201220739641U CN202977657U CN 202977657 U CN202977657 U CN 202977657U CN 2012207396415 U CN2012207396415 U CN 2012207396415U CN 201220739641 U CN201220739641 U CN 201220739641U CN 202977657 U CN202977657 U CN 202977657U
- Authority
- CN
- China
- Prior art keywords
- battery
- lithium battery
- heat
- silica gel
- explosion
- 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
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Classifications
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model provides a cylindrical radiating lithium battery comprising a housing, an anti-explosion cap, a battery core, a protection film, a hat-conducting silica gel insulating layer and a radiating layer. Because the radiating layer is arranged at the inner side of the outer wall of the battery, the lithium battery radiates heat in time when the battery is approximately at a shot point; and because the anti-explosion cap is arranged at the upper part of the lithium battery, the internal pressure impulsion of the battery can be buffered, and the air pressure in the battery is reduced, and therefore, the security of the battery is further improved.
Description
Technical field
The utility model belongs to technical field of lithium batteries, is specifically related to a kind of cylindrical heat-radiating lithium battery.
Background technology
Lithium battery has the advantages such as specific energy is high, power is large, cryogenic property is good, all have more widely at military affairs, industry and civil area and use, and the safety issue of lithium battery also receives publicity day by day, use in the situation that lithium battery is long-term, due to battery short circuit, internal temperature of battery suddenly raises and causes thermal runaway, and the rising of inside battery air pressure, and high temperature and high pressure all very easily causes battery explosion.
At present, research for explosion protection for batteries is comparatively ripe, a kind of safety anti-explosive block of cylindrical lithium ion secondary battery is disclosed as Chinese utility model patent ZL 200520064205.2, this explosion-proof cap comprises that one has the explosion-proof valve of annular recess, this downward punching press in explosion-proof valve center has a boss, there is a hole that coordinates with the boss of explosion-proof valve at the dead ring center that is positioned at explosion-proof valve below, is provided with the positive temperature coefficient ring plate of ring-type between explosion-proof valve and top cover; One hollow dead ring loads top cover, ring plate, explosion-proof valve and dead ring.
But high temperature is also one of factor that causes battery explosion, if can in time dispel the heat when battery closes on demolition point, reduces simultaneously inside battery air pressure, thereby can further improve the fail safe of battery.
Summary of the invention
The purpose of this utility model is to solve the technical problem that above-mentioned existing lithium battery exists, and a kind of lithium battery with good heat radiating explosion-proof effect is provided.
A kind of cylindrical heat-radiating lithium battery that the utility model discloses comprises shell, explosion-proof cap, battery, diaphragm, heat conductive silica gel insulating barrier and heat dissipating layer.
Described explosion-proof cap is positioned at the diaphragm top of lithium battery.
Described heat conductive silica gel insulating barrier is between diaphragm and heat dissipating layer, and heat dissipating layer is between heat conductive silica gel insulating barrier and shell.
Described heat conductive silica gel insulating barrier is soft silica gel.
The thickness that described heat dissipating layer is is 0.8-1.2mm.
Described heat dissipating layer is graphite flake.
The utlity model has following beneficial effect:
1) the utility model is provided with one deck graphite linings at battery case inwall place, graphite linings has good radiating effect, the thermal conductivity of general graphite flake is 5-20W/m.K, the heat energy that inside battery produces fast and effeciently can be passed, graphite also has good antiknock ability simultaneously, the integral rigidity of lithium battery outer wall is strengthened, and lithium battery stability increases.
2) the utility model is provided with one deck heat conductive silica gel insulating barrier in graphite linings and diaphragm place, and silica gel has good heat-conducting effect, and its conductive coefficient also has extraordinary insulation property simultaneously up to 2.45w/mk.Because air is poor conductor of heat, the conductive coefficient of air is that 0.03w/mk is only arranged, and therefore soft silica gel can be filled out the space that produces between envelope graphite linings and diaphragm, thereby effectively improves the heat conductivility of battery.
3) the utility model is provided with explosion-proof cap on lithium battery top, battery outer wall inboard is provided with heat dissipating layer, therefore lithium battery can in time dispel the heat when battery closes on demolition point, simultaneously the explosion-proof cap at the battery top is provided with the cushion space of interior pressure impulse force, thus the fail safe that can further improve battery.
Description of drawings
Fig. 1: the structural representation of cylindrical heat-radiating lithium battery.
Attached number in the figure is as follows:
1, shell, 2, explosion-proof cap, 3, battery, 4, diaphragm, 5, the heat conductive silica gel insulating barrier, 6, heat dissipating layer.
Embodiment
As shown in Figure 1; lithium battery comprises shell 1, explosion-proof cap 2, battery 3, diaphragm 4, heat conductive silica gel insulating barrier 5 and heat dissipating layer 6; explosion-proof cap 2 is positioned at diaphragm 4 tops of lithium battery, and heat conductive silica gel insulating barrier 5 is soft silica gel, between diaphragm 4 and heat dissipating layer 6.Heat conductive silica gel insulating barrier 5 can be filled out the space that produces between envelope heat dissipating layer 6 and diaphragm 4, removes the air between heat dissipating layer 6 and diaphragm 4, therefore can overcome the problem that air causes the lithium battery thermal conductivity to reduce as poor conductor of heat.
As shown in Figure 1, heat dissipating layer 6 is graphite flake, thickness is 1mm, between hot silicone insulation layer 5 and shell 1, graphite flake has good radiating effect, graphite flake also has good antiknock ability simultaneously, and the integral rigidity of lithium battery outer wall is strengthened, so heat dissipating layer 6 choice for use graphite flakes can make lithium battery stability increase.
As shown in Figure 1, be provided with explosion-proof cap 2 on li-ion cell protection film 4 tops, explosion-proof cap 2 has the space of pressing in can buffer battery, inside battery air pressure is reduced, the fail safe that further improves battery.
Specific embodiment described in the utility model is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (4)
1. cylindrical heat-radiating lithium battery; comprise shell (1), explosion-proof cap (2), battery (3), diaphragm (4), heat conductive silica gel insulating barrier (5) and heat dissipating layer (6); explosion-proof cap (2) is positioned at diaphragm (4) top of lithium battery; it is characterized in that; heat conductive silica gel insulating barrier (5) is positioned between diaphragm (4) and heat dissipating layer (6), and heat dissipating layer (6) is positioned between heat conductive silica gel insulating barrier (5) and shell (1).
2. cylindrical heat-radiating lithium battery according to claim 1, it is characterized in that: the thickness that described heat dissipating layer (6) is is 0.8-1.2mm.
3. cylindrical heat-radiating lithium battery according to claim 1, it is characterized in that: described heat dissipating layer (6) is graphite flake.
4. cylindrical heat-radiating lithium battery according to claim 1, it is characterized in that: described heat conductive silica gel insulating barrier (5) is soft silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207396415U CN202977657U (en) | 2012-12-18 | 2012-12-18 | Cylindrical radiating lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207396415U CN202977657U (en) | 2012-12-18 | 2012-12-18 | Cylindrical radiating lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977657U true CN202977657U (en) | 2013-06-05 |
Family
ID=48518692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207396415U Expired - Fee Related CN202977657U (en) | 2012-12-18 | 2012-12-18 | Cylindrical radiating lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977657U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466053A (en) * | 2014-11-13 | 2015-03-25 | 深圳鸿源博得新能源技术发展有限公司 | Fire-retardant battery pack and method for improving flame retardancy of battery pack |
| CN105118666A (en) * | 2015-09-11 | 2015-12-02 | 陈海花 | Capacitor |
| CN105304973A (en) * | 2014-07-24 | 2016-02-03 | 谢彦君 | Battery thermal management device and manufacture method thereof |
| CN107093683A (en) * | 2017-04-27 | 2017-08-25 | 柳州豪祥特科技有限公司 | Intelligent mobile phone battery flame retardant composite film based on antimony nano material |
| CN107128017A (en) * | 2017-04-27 | 2017-09-05 | 柳州豪祥特科技有限公司 | Lithium battery flame-retardant components based on antimony nano material |
| CN107160766A (en) * | 2017-04-27 | 2017-09-15 | 柳州豪祥特科技有限公司 | Use for electronic products inflaming retarding membrane based on antimony nano material |
-
2012
- 2012-12-18 CN CN2012207396415U patent/CN202977657U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105304973A (en) * | 2014-07-24 | 2016-02-03 | 谢彦君 | Battery thermal management device and manufacture method thereof |
| CN104466053A (en) * | 2014-11-13 | 2015-03-25 | 深圳鸿源博得新能源技术发展有限公司 | Fire-retardant battery pack and method for improving flame retardancy of battery pack |
| CN104466053B (en) * | 2014-11-13 | 2017-11-03 | 深圳鸿源博得新能源技术发展有限公司 | Flame-proof battery bag and the method for improving battery bag anti-flammability |
| CN105118666A (en) * | 2015-09-11 | 2015-12-02 | 陈海花 | Capacitor |
| CN107093683A (en) * | 2017-04-27 | 2017-08-25 | 柳州豪祥特科技有限公司 | Intelligent mobile phone battery flame retardant composite film based on antimony nano material |
| CN107128017A (en) * | 2017-04-27 | 2017-09-05 | 柳州豪祥特科技有限公司 | Lithium battery flame-retardant components based on antimony nano material |
| CN107160766A (en) * | 2017-04-27 | 2017-09-15 | 柳州豪祥特科技有限公司 | Use for electronic products inflaming retarding membrane based on antimony nano material |
| CN107093683B (en) * | 2017-04-27 | 2019-12-10 | 柳州豪祥特科技有限公司 | Antimony nano material-based flame-retardant composite film for smart phone battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20191218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |