Lithium battery upper cover with bipolar connecting sheet
A connecting sheet and lithium battery technology, which is applied in the direction of lithium battery, battery cover/end cover, conductive connection, etc., can solve the problems of bulging and cracking of the battery shell, explosion, poor safety, etc., and achieve good explosion-proof performance, high safety, Avoid the effect of explosion
Active Publication Date: 2019-03-19
JIANGSU YUHAO NEW ENERGY TECH
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Problems solved by technology
[0002] Lithium batteries have the advantages of high voltage, long life, high energy density, and portability, and their application fields are also expanding, but their safety is worse than other secondary batteries. When the power lithium battery is overcharged, its internal electrolyte, etc. The material will be cracked to produce gas, which will cause the battery case to bulge and rupture, allowing oxygen to enter and react with lithium ions accumulated on the surface of the negative electrode, resulting in an explosion
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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0021] Such as Figure 1 to Figure 3 As shown, embodiments of the present invention include:
[0022] A bipolar connecting piece lithium battery upper cover, comprising a cover plate 1, a positive pole holder 2, a negative pole holder 3, a positive pole pole 4, a negative pole pole 5, a rivet, a first positive pole connection piece 6, a second positive pole connection piece 7, The first negative connecting piece 8, the second negative connecting piece 9 and the explosion-proof valve 10, the positive pole seat 2 and ...
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The invention discloses a bipolar connecting sheet lithium battery upper cover, which comprises a cover plate, a positive pole seat, a negative pole seat, a positive pole pole, a negative pole pole, a rivet, a first positive pole joint piece, a second positive pole joint piece, and a first negative pole The connecting piece, the second negative connecting piece and the explosion-proof valve, the positive pole and the negative pole respectively protrude and are fixed in the middle of the positive seat and the negative seat, and the first positive connecting piece and the second positive connecting piece It is fixedly connected to the bottom of the cover plate by four rivets and corresponds to the position of the positive pole seat. The first negative connecting piece and the second negative connecting piece are in a vertically facing structure and fixedly connected to the cover by four rivets. The bottom of the plate corresponds to the position of the negative pole seat. Through the above method, the present invention has a simple structure, adopts a bipolar connecting piece, increases the electrode performance of the lithium battery, and has good explosion-proof performance, high safety, and can completely avoid the explosion phenomenon when the lithium battery is overcharged.
Description
technical field [0001] The invention belongs to the technical field of lithium batteries, and in particular relates to a bipolar connecting piece lithium battery upper cover. Background technique [0002] Lithium batteries have the advantages of high voltage, long life, high energy density, and portability, and their application fields are also expanding, but their safety is worse than other secondary batteries. When the power lithium battery is overcharged, its internal electrolyte, etc. The material will be cracked to produce gas, which will cause the battery shell to bulge and rupture, allowing oxygen to enter and react with the lithium ions accumulated on the surface of the negative electrode, and then explode. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a bipolar connecting piece lithium battery upper cover, which has a simple structure, adopts the bipolar connecting piece, increases the electrode perfo...
Claims
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IPC IPC(8): H01M2/04H01M2/06H01M2/20H01M2/12H01M10/052H01M50/15H01M50/159H01M50/176H01M50/30H01M50/522H01M50/562
CPCH01M10/052H01M50/147H01M50/172H01M50/30H01M50/50Y02E60/10
Inventor 潘宇锋
Owner JIANGSU YUHAO NEW ENERGY TECH