CN201478395U - Grid window air passage heat radiation explosion-proof packaged lithium battery - Google Patents
Grid window air passage heat radiation explosion-proof packaged lithium battery Download PDFInfo
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- CN201478395U CN201478395U CN2009201593757U CN200920159375U CN201478395U CN 201478395 U CN201478395 U CN 201478395U CN 2009201593757 U CN2009201593757 U CN 2009201593757U CN 200920159375 U CN200920159375 U CN 200920159375U CN 201478395 U CN201478395 U CN 201478395U
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- lithium battery
- conducting plate
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- grid window
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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 grid window air passage heat radiation explosion-proof packaged lithium battery, comprising a casing provided with an air passage outlet, an air passage inlet and a grid window, as well as a power end bolt, single lithium battery lugs, a heat radiation pressure plate, single lithium batteries, a left side ribbed heat-conducting plate, a right side ribbed heat-conducting plate and a compression bolt, a grid window air passage consisting of the left side ribbed heat-conducting plate and the right side ribbed heat-conducting plate is arranged between the two single lithium batteries, air convection between heat generated during charging or discharging the single lithium batteries with the outside can be performed through the grid window air passage for heat radiation, the grid formed through the heat-conducting plates can isolate high temperature or detonation generated by the single lithium batteries, so as to prevent explosion.
Description
Technical field
The utility model relates to a kind of lithium battery, particularly radiating explosion-proof packaging lithium battery of grid window air flue.
Technical background
Existing lithium battery is packed its shell plastic-aluminum combined membrane structure and steel shell, cause accident for fear of the steel shell in certain situation short circuit, one deck insulating material is set in the steel shell usually isolates battery and shell, the result who does like this causes battery bad in the charge and discharge process heat radiation, the inside battery temperature rise is too high, the too high electrolyte evaporating capacity that causes of inside battery temperature rise increases, electrolyte evaporating capacity increase causing battery packages internal pressure increases, when the battery packages internal pressure is increased to certain value, cause that easily puncturing the aluminum-plastic composite membrane packaging material forms gas leakage, after the battery packages gas leakage, battery promptly damages thereupon, with reference to Fig. 7, when some single lithium battery temperature rises are too high, the single lithium battery that is adjacent promptly is in heating status, its internal temperature rise significantly increases, internal temperature rise significantly increases, cause that the electrolyte evaporating capacity increases, electrolyte evaporating capacity increase causing battery packages internal pressure increases, internal pressure increases, too high pressure punctures the aluminum-plastic composite membrane packaging material and forms gas leakage, just become chain reaction, the single lithium battery of being heated is if its cohesion pressure of steel shell is bigger, set off an explosion extremely easily, because the blast of certain single lithium battery forms moment high temperature and also can cause adjacent single lithium battery chain explosion, the heat radiation flame proof of lithium battery has become the crucial technology essential factor of the safety of lithium battery.
Summary of the invention
As everyone knows, the commercial lithium battery all is to obtain more high voltage by single lithium battery by series connection, obtain bigger electric current by parallel connection, usually the commercial lithium battery all is a plurality of single lithium battery assemblies, with reference to Fig. 7, being arranged in order that a plurality of single lithium battery are neat squeezed in the container of a sealing, its heat radiation is bad to be conspicuous, in order to improve the single lithium battery heat radiation, be heated for fear of adjacent single lithium battery, adopt between two single lithium battery, be provided with the grid window air flue that the rib heat-conducting plate is formed, rib heat-conducting plate grid window air flue is arranged, not only the caloric value of single lithium battery at charge and discharge process conducted, grid window air flue also forms cross-ventilation outward with the battery pack box simultaneously, has reached single lithium battery and has dispelled the heat in the mode of heat convection.In order to guarantee that the heat-conducting plate grid window air flue has certain rigidity, need also simultaneously to consider that proportion is unsuitable excessive, so adopt the good material aluminium sheet of heat conduction to make.
The realization technical solutions of the utility model are, the chassis shell top end face has the air flue outlet, there is the air intake duct outlet chassis shell bottom surface, the left side has rib heat-conducting plate and right side to have the rib heat-conducting plate to constitute grid window air flue, be between outlet of chassis shell air flue and the air intake duct outlet, the left side has rib heat-conducting plate and right side to have the rib heat-conducting plate to be close to the single lithium battery plane respectively, the single lithium battery of the adjacent chassis shell in two ends respectively has a heat radiation pressing plate, the heat radiation pressing plate is subjected to the pressuring action of hold-down bolt, make each single lithium battery plane all the rib heat-conducting plate be arranged or to have the plane of rib heat-conducting plate to compress heat conduction good with the right side with the left side, when the single lithium battery adstante febre, heat conducts to the left side rapidly to be had the rib heat-conducting plate or with the right side rib heat-conducting plate is arranged, because the ascension effect of hot-air, with the air formation convection current of surrounding environment, hot-air is discharged from the air flue outlet rapidly, the heat power effect, the outer gas of chassis shell enters from the air intake duct outlet again, and air convection circulation like this has reached the effect of heat radiation.
Because the heat-conducting plate grid window air flue adopts the manufacturing of aluminium sheet material to have certain rigidity and intensity, even, high temperature or detonation that the thermal expansion generation took place when some single lithium battery 6 are reacted, and the heat-conducting plate grid window air flue is isolated the high temperature or the detonation of its generation, thereby plays explosion-proof.
Positive effect of the present utility model, present lithium ion battery adopts liquid organic electrolyte, have leakage, catch fire, [lithium battery compound polymer electrolyte material progress Zhao cosmos is emerging for potential safety hazard such as blast, Qinghai University's journal (natural science edition) the 24th volume, the 4th phase, in August, 2006].How to overcome this outstanding defective, many scientific and technical personnel that are engaged in the lithium battery industry have dropped into a large amount of work, bibliographical information, adopting polymer dielectric is the effective way that addresses these problems, but also there is certain problem in polymer dielectric, and solid polymer electrolyte is generally gel-type or plasticising type, its mechanical strength is relatively poor, and shows relatively poor chemistry and electrochemical stability under battery operated state; And mechanical strength preferably the full solid state polymer electrolyte system at room temperature major part be in crystalline state, conductivity is very low, can't satisfy actual needs, the low temperature polymerization solid electrolyte is still blank at present.In addition, polymer dielectric and metal lithium electrode compatibility are poor, separate the matter interface at electrode-electric easily and generate one deck passivating film, make lithium CURRENT DISTRIBUTION in the process of deposition dissolving inhomogeneous, generate dendrite, this has reduced the capacitance of electrode on the one hand, influence the cycle performance of battery, may cause internal short-circuit on the other hand, even blast.Have the thermal stability of attitude polymer dielectric also not so good again, in charge and discharge process, along with the change of temperature, the form of polymer changes, thus the mechanical strength of impact polymer and electric cycle performance.
The utility model is under the prerequisite that does not change existing liquid organic electrolyte maturation process, by improving heat dispersion, improve the fail safe of lithium battery, single lithium battery can be by grid window air flue and chassis shell outer air heat loss through convection in the heating of charging and discharging, high temperature or detonation that the grid that heat-conducting plate is formed can also produce single lithium battery are isolated, thereby play explosion-proof.
Description of drawings
Fig. 1 is a front view;
Fig. 2 is the B-B cutaway view of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 1;
Fig. 4 is that the right side has the rib heat-conducting plate;
Fig. 4 a is the right view that there is the rib heat-conducting plate on the right side;
Fig. 5 is that the left side has the rib heat-conducting plate;
Fig. 5 a is the left view that there is the rib heat-conducting plate in the left side;
Fig. 6 is the vertical view of Fig. 1;
Fig. 7 is a kind of existing lithium battery packing technique scenario-frame view;
Among Fig. 1, power connection end bolt 2, chassis shell 4, hold-down bolt 9, grid window 1a;
Among Fig. 2, air flue outlet 1, power connection end bolt 2, single lithium battery lug 3, chassis shell 4, heat radiation pressing plate 5, single lithium battery 6, air inlet road junction 7, left side have rib heat-conducting plate 8, right side that rib heat-conducting plate T8, heat radiation pressing plate 5, hold-down bolt 9 are arranged;
Among Fig. 3, chassis shell 4, heat radiation pressing plate 5, single lithium battery 6, left side have rib heat-conducting plate 8, right side that rib heat-conducting plate T8, hold-down bolt 9 are arranged;
Among Fig. 4, the right side have rib heat-conducting plate T8, rib 8b,
Among Fig. 5, the left side have rib heat-conducting plate 8, rib 8c,
Among Fig. 6, chassis shell 4, power connection end bolt 2, air flue outlet 1, hold-down bolt 9;
Among Fig. 7, power connection end bolt 2, single lithium battery lug 3, chassis shell 4, single lithium battery 6;
Specific embodiment:
With reference to Fig. 1, grid window air flue radiating explosion-proof packaging chassis shell is that rectangle is box, and its top end face has power connection end bolt 2, and side elevation has grid window 1a, and there is hold-down bolt 9 in the outside of grid window 1a.
With reference to Fig. 2, chassis shell 4 top end faces have air flue outlet 1, there is air inlet road junction 7 chassis shell 4 bottom surfaces, the left side has rib heat-conducting plate 8 and right side to have rib heat-conducting plate T8 to be between air flue outlet 1 and the air inlet road junction 7, the left side has rib heat-conducting plate 8 and right side to have rib heat-conducting plate T8 to be close to single lithium battery 6 planes respectively, the single lithium battery 6 of adjacent chassis shell 4 has a heat radiation pressing plate 5, the pressuring action that heat radiation pressing plate 5 is subjected to hold-down bolt 9 makes each single lithium battery 6 plane all with the left side rib heat-conducting plate 8 be arranged or to have the plane of rib heat-conducting plate T8 to compress heat conduction good with the right side, when single lithium battery 6 adstante febres, heat conducts to the left side rapidly to be had rib heat-conducting plate 8 or with the right side rib heat-conducting plate T8 is arranged, because the ascension effect of hot-air, form convection current with the air of surrounding environment, hot-air is discharged from air flue outlet 1 rapidly, the heat power effect, the outer gas of chassis shell enters from air inlet road junction 7 again, and air convection circulation like this has reached the effect of heat radiation.
With reference to Fig. 4, Fig. 4 a, Fig. 5, Fig. 5 a, the left side has rib heat-conducting plate 8 and right side to have rib heat-conducting plate T8 that rib 8b and rib 8c are all arranged, rib 8b and rib 8c not only can strengthen outside the rigidity effect, can also increase area of dissipation, with reference to Fig. 4, Fig. 4 a, Fig. 5, Fig. 5 a, rib 8b and rib 8c still are mutual location structure when installing in opposite directions, make two heat-conducting plate mutual alignments be limited the location.
The left side has rib heat-conducting plate 8 and right side to have rib heat-conducting plate T8 to be close to single lithium battery 6 planes respectively, not only play the effect of heat conduction and heat radiation, the heating of also having isolated each element cell simultaneously influences each other, when an element cell temperature rise is too high, the heat of its generation is by being close to heat-conducting plate heat conduction with it, distribute by the grid window air flue convection current, can not cause the adjacent element cell of being close to be heated.
With reference to Fig. 2, between two single lithium battery 6, be that the left side is formed grid window air flue by rib heat-conducting plate 8 and right side by rib heat-conducting plate T8, the material of heat-conducting plate adopts the metal aluminum sheet of good heat conductivity, metal aluminum sheet is good heat conductivity not only, also has certain intensity, when the packaging aluminium film of thermal expansion puncture single lithium battery 6 took place in some single lithium battery 6, can be as existing lithium battery packaging structure, adjacent single lithium battery 6 is by the high temperature of its generation or detonation forms chain reaction, because, the left side is isolated the high temperature or the detonation of its generation by the grid that rib heat-conducting plate T8 forms by rib heat-conducting plate 8 and right side, thereby the left side can also be played explosion-proof by rib heat-conducting plate 8 and right side by the grid that rib heat-conducting plate T8 forms.
With reference to Fig. 2, single lithium battery lug 3 is connected with power connection end bolt 2 can output current or accept charging.
With reference to Fig. 2, between two single lithium battery 6, be that the left side is formed grid window air flue by rib heat-conducting plate 8 and right side by rib heat-conducting plate T8, two heat radiation pressing plates 5 are compacted into whole lithium battery pack by hold-down bolt 9 with it, it is good to make it mutual heat conduction contact, is packaged into whole radiating explosion-proof packaging lithium battery of grid window air flue by chassis shell 4 again.
With reference to Fig. 1, for two heat radiation pressing plates 5 have good radiating condition, chassis shell 4 and two heat radiation pressing plates 5 are provided with grid window 1a, make two heat radiation pressing plates 5 can be effectively and the outer cross-ventilation of chassis shell 4.
Claims (3)
1. radiating explosion-proof packaging lithium battery of grid window air flue, be that the left side has rib heat-conducting plate (8) and right side to have rib heat-conducting plate (T8) to form grid window air flue between two single lithium battery (6), hold-down bolt (9) compresses two heat radiation pressing plates (5), two heat radiation pressing plates (5) clamp single lithium battery (6) and form lithium battery pack, form radiating explosion-proof packaging lithium battery of grid window air flue by chassis shell (4) packing, it is characterized in that the left side has rib heat-conducting plate (8) and right side to have rib heat-conducting plate (T8) that rib (8b) and rib (8c) are all arranged.
2. by the described radiating explosion-proof packaging lithium battery of grid window air flue of claim 1, it is characterized in that it is aluminium sheet that the left side has rib heat-conducting plate (8) and right side that rib heat-conducting plate (T8) material is arranged.
3. by the described radiating explosion-proof packaging lithium battery of grid window air flue of claim 1, it is characterized in that chassis shell (4) top end face has air flue outlet (1), there is air inlet road junction (7) chassis shell (4) bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201593757U CN201478395U (en) | 2009-06-19 | 2009-06-19 | Grid window air passage heat radiation explosion-proof packaged lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201593757U CN201478395U (en) | 2009-06-19 | 2009-06-19 | Grid window air passage heat radiation explosion-proof packaged lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201478395U true CN201478395U (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201593757U Expired - Fee Related CN201478395U (en) | 2009-06-19 | 2009-06-19 | Grid window air passage heat radiation explosion-proof packaged lithium battery |
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| Country | Link |
|---|---|
| CN (1) | CN201478395U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915588A (en) * | 2014-04-23 | 2014-07-09 | 昆山市大久电子有限公司 | Storage battery box with automatic cooling function |
| CN105811044A (en) * | 2014-09-23 | 2016-07-27 | 湖南工业大学 | Air cooling method for electric vehicle battery pack |
-
2009
- 2009-06-19 CN CN2009201593757U patent/CN201478395U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915588A (en) * | 2014-04-23 | 2014-07-09 | 昆山市大久电子有限公司 | Storage battery box with automatic cooling function |
| CN105811044A (en) * | 2014-09-23 | 2016-07-27 | 湖南工业大学 | Air cooling method for electric vehicle battery pack |
| CN105811044B (en) * | 2014-09-23 | 2018-08-17 | 湖南工业大学 | A kind of air heat dissipating method of batteries of electric automobile packet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Anhui Tiankang (Group) Co., Ltd. Assignor: Zhao Kuan| Deng Changhu Contract record no.: 2010340000022 Denomination of utility model: Radiating explosion-proof packaging lithium battery of grid window air flue Granted publication date: 20100519 License type: Exclusive License Record date: 20100401 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20150619 |
|
| EXPY | Termination of patent right or utility model |