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Lithium ion battery with gas release and anti-explosion popping safety valve
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A lithium-ion battery and gas release technology, applied in the field of lithium-ion batteries, can solve problems such as complex structure, poor safety, and short service life, and achieve the effects of enhancing safety, prolonging service life, and improving safety and reliability
Active Publication Date: 2012-07-04
ZHEJIANG GBS GREEN ENERGY CO
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[0006] The invention discloses a lithiumion battery with gas release and explosion-proof pop-up safety valve, which solves the technical problems of poor safety, complex structure and short service life in the existing electric vehiclelithium ion battery
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[0037] This embodiment is a lithium-ion battery with a single lead-out pole. The battery includes a casing 9 and an electric core housed in the casing 9. The casing 9 is in the shape of a cuboid. The outer walls around the casing 9 form several parallel bars. The opening of the casing 9 is sealed by a heat-sealed cover 8 for the transverse rib, and an aluminum pole 10 is provided on each side of the heat-sealed cover 8, and the two aluminum poles 10 are symmetrically arranged.
[0038] Shell 9 is equipped with batteries, see figure 2 , The cell includes a pole piece 11 and a diaphragm 12, the pole piece 11 includes positive and negative pole pieces, the positive and negative pole pieces are arranged at...
[0048] This embodiment is a lithium-ion battery with double-headed poles, which includes a housing 14 and an electric core housed in the housing 14. The housing 14 is in the shape of a cuboid, and the outer walls around the housing 14 form several parallel horizontal lines. Ribs. Both ends of the casing 14 are open, and the structures of the two ends of the battery are the same, and the structure of one end will be described in detail below. see Figure 8 , 15 , the opening of the housing 14 is sealed by the plastic cover 11 and the aluminum cover 10, and the aluminum cover 10 is cl...
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Abstract
The invention discloses a lithiumion battery with a gas release and anti-explosion popping safety valve, comprising a shell and a battery cell, wherein the shell is at least provided with an opening sealed by using a heat seal cover; a safety valve is arranged on the heat seal cover and comprises a safety cover and a pressure filter block; the interior of the safety cover is of a through structure, and the pressure filter block is fixed in the safety cover and provided with a through hole; and the safety cover and the heat seal cover are mutually hooked and combined. The invention has the advantages that the structure is simplified, the problem of part aging does not exist, and the use safety and reliability of the battery are improved; the properties of the battery in a use process are enhanced, for example, the cycle life of the battery can be greatly improved, and the like; and in the use process of the battery, after the interior instantly reaches certain pressure, gas is released in time, thus the phenomenon of battery shell fracture cannot occur.
Description
【Technical field】 [0001] The invention belongs to the technical field of electric vehicle battery manufacturing, in particular to a lithiumion battery with a gas release and explosion-proof pop-up safety valve. 【Background technique】 [0002] As we all know, electric vehicles are a labor-saving and fast means of transportation, and are deeply loved by users. Electric vehicles are also a kind of green and environment-friendly means of transportation. With the increasing awareness of environmental protection in all sectors of society, electric vehicles are used more and more widely. At the same time, the electric vehicle industry is also strongly supported by the government departments in the mainland. [0003] Batteries are the "heart" of electric vehicles, and the performance of batteries will directly affect the performance and quality of electric vehicles, so the importance of batteries to electric vehicles is self-evident. For batteries, their safety is a very important...
Claims
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Application Information
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