A soft pack lithium battery exhaust and liquid replacement device
A technology of soft-packed lithium battery and liquid replacement device, which is applied in the direction of exhaust plug device, electrical components, battery pack components, etc., can solve the problems of battery capacity attenuation, battery flatulence, electrolyte component consumption, etc., to avoid potential safety hazards, Effect of extending cycle life
Active Publication Date: 2022-03-18
广西卡耐新能源有限公司 +4
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- Description
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- Application Information
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Problems solved by technology
At the same time, with the constant time cycle of the battery, the positive and negative electrode materials continue to expand-shrink to form new cross-sections, causing the electrolyte components to be consumed and eventually "dried up", making the surplus insufficient to support the charging and discharging process of the positive cell, making the battery Capacity attenuation affects battery life
In addition, the battery will produce gas after a long cycle, causing the battery to bloat, thus affecting the safety of the battery
Method used
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[0021] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0022] see figure 1 with figure 2 , The exhaust and liquid replenishment device for a soft-pack lithium battery provided by the present invention includes a three-layer communication pipe 100 , a first elastic gasket 210 , a second elastic gasket 220 and an outer rubber layer 300 .
[0023] The three-layer communication tube 100, which is specifically a metal conduit or a polymer conduit, includes a conduit 101 with a diameter of 1-5mm and a length of 3-10mm.
[0024] The middle part of the conduit 101 is provided with a first partition 110, a second partition 120 and a third partition 130, and the first partition 110, the second partition 120 and the third partition 130 are respectively provided with different curvatures. holes, so as to ach...
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Abstract
The invention discloses an exhaust and fluid replacement device for a soft-pack lithium battery. The exhaust and fluid replacement device for a soft-pack lithium battery includes a three-layer communication pipe, a first elastic gasket, a second elastic gasket and an outer rubber layer. The outer rubber layer is coated on the three-layer communication tube, and is connected with the heat-sealing layer of the soft-packed lithium battery. The first elastic gasket and the second elastic gasket are respectively arranged in the three-layer communication tube. The invention can exhaust or (and) replenish the battery without breaking the outer packaging of the fast soft-pack lithium battery, greatly prolonging the cycle life of the battery and avoiding potential safety hazards.
Description
technical field [0001] The invention relates to the technical field of batteries, in particular to an exhaust and fluid replacement device for a soft-pack lithium battery. Background technique [0002] Soft-pack lithium batteries, because their outer packaging is made of flexible aluminum-plastic material, compared with the "rich liquid state" of square batteries, soft-pack lithium batteries are in a "poor liquid state". At the same time, with the constant time cycle of the battery, the positive and negative electrode materials continue to expand-shrink to form new cross-sections, causing the electrolyte components to be consumed and eventually "dried up", making the surplus insufficient to support the charging and discharging process of the positive cell, making the battery Capacity fading affects battery life. In addition, the battery will produce gas after a long cycle, causing the battery to bloat, thus affecting the safety of the battery. Contents of the invention ...
Claims
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IPC IPC(8): H01M50/609H01M50/30H01M50/317H01M50/60
CPCY02E60/10
Inventor 徐欢张海林张勍计结胜李媛白培锋
Owner 广西卡耐新能源有限公司