Battery cathode sealing device
A technology for sealing devices and negative poles of batteries, which is applied to battery components, circuits, electrical components, etc., can solve problems affecting the service life and safety of electronic equipment, hazards to batteries and electronic equipment, and high internal pressure, etc., to achieve easy Implementation, avoiding damage to batteries and equipment, and low manufacturing costs
Active Publication Date: 2009-10-28
上海科达利五金塑胶有限公司
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Problems solved by technology
However, because the above-mentioned non-electrolyte secondary battery has the characteristics of high energy density, excellent load characteristics and strong sealing, this type of battery is easy to cause negative electrode leakage due to high energy density and high internal pressure, and negative electrode leakage is harmful to the battery. and electronic equipment are extremely harmful, and will directly affect the service life and safety of electronic equipment
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[0019] The following examples are further explanations and illustrations of the present invention, and do not constitute any limitation to the present invention.
[0020] This embodiment only takes a lithium battery as an example. refer to Figure 1 ~ Figure 3 , The battery negative electrode sealing device of the present invention includes a sealing cover plate 10 , a battery metal case 20 , a negative electrode assembly 30 and a sealing member 40 . Among them, such as figure 1 As shown, the battery metal case 20 is a cuboid aluminum metal case with an open top.
[0021] Such as figure 1 , image 3 As shown, a sealing cover plate 10 is connected to the open end of the battery metal case 20. The sealing cover plate is a rectangular plate-shaped body corresponding to the shape of the battery metal case. The through hole 11 that runs through up and down, such as figure 2 , the through hole 11 is composed of an upper hole 111 and a lower hole 112, wherein the upper hole 11...
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A battery cathode sealing device comprises a sealing cover board arranged at an open end of a battery metal shell; a cathode component arranged on the sealing cover board, extending upwards from the battery metal shell outward the cover board; a sealing piece between the cathode component and the sealing cover board to make the cathode component and the sealing cover board form a sealing connection The invention effectively solves the problem of battery cathode leakage. The leakage points of the battery are completely sealed by the multiple sealing structure so as to effectively prevent the battery cathode leakage and avoid the battery and device damage due to the leakage liquid.
Description
【Technical field】 [0001] The invention relates to a sealed battery, in particular to a battery negative electrode sealing device. 【Background technique】 [0002] In recent years, due to the development of portable and high-capacity electronic equipment such as mobile phones, notebook computers, and digital cameras, as the driving power of such electronic equipment, various high-capacity alkaline batteries and lithium-ion batteries are generally used. Representative non-aqueous electrolyte secondary batteries. However, due to the above-mentioned non-electrolyte secondary battery has the characteristics of high energy density, excellent load characteristics and strong sealing, this type of battery is easy to cause negative electrode leakage due to high energy density and high internal pressure, and negative electrode leakage is harmful to the battery. and electronic equipment are extremely harmful, and will directly affect the service life and safety of electronic equipment. ...
Claims
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IPC IPC(8): H01M2/08H01M2/04H01M2/30H01M2/26H01M50/14H01M50/148H01M50/184H01M50/186H01M50/528H01M50/547
CPCY02E60/12Y02E60/10
Inventor 苗福远徐立舰
Owner 上海科达利五金塑胶有限公司