Forming machine for battery tab and forming method for battery tab
A technology of battery lugs and forming machines, which is applied to battery pack parts, circuits, electrical components, etc. It can solve problems such as damage, impact on production reliability, deformation of positive or negative plates, and achieve the effect of ensuring reliability
Active Publication Date: 2012-07-25
DONGGUAN AMPEREX TECH +1
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Problems solved by technology
[0002] At present, in the preparation process of batteries (such as lithium-ion batteries), the positive or negative electrodes of the battery are usually deformed after being rolled. The deformation of the sheet is more serious, causing the tabs of the positive or negative electrode to be upturned or downturned
The deformed positive electrode or negative electrode will scratch the punch or die, causing damage and affecting the reliability of production
Method used
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[0021] In order to make the purpose, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific implementations described in this specification are only for explaining the present invention, not for limiting the present invention.
[0022] It should be noted that because the structure of the positive electrode sheet / positive electrode tab of the battery is similar to that of the negative electrode sheet / negative electrode tab of the battery, they are not distinguished in this specification and are collectively referred to as the battery electrode sheet / battery tab. see figure 1 As shown, the battery pole piece includes a diaphragm area 60 and a tab area 10 located on one side of the diaphragm area 60 , and the tab area 10 can be punched to form a battery tab.
[0023] see ...
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The invention discloses a forming machine for a battery tab, comprising a female die provided with an opening, a male die matched with the female die to punch a tab area of the battery tab, and a protecting device, wherein the protecting device stretches in the female die via the opening and completely covers the upper surface and the lower surface of a whole battery when the tab area of the battery tab longitudinally moves in the female die relatively to the female die, and the protecting device retreats from the female die to punch the battery pole piece after the battery pole piece stops movement. Compared with the prior art, the forming machine for the battery tab, disclosed by the invention, can prevent the battery tab, the male die and the female die from damage caused by scratch, and ensure the reliability of production. Additionally, the invention further discloses a forming method for the battery tab.
Description
technical field [0001] The invention relates to the field of battery preparation, and more specifically, the invention relates to a battery tab forming machine and a battery tab forming method. Background technique [0002] At present, in the preparation process of batteries (such as lithium-ion batteries), the positive or negative electrodes of the battery are usually deformed after being rolled. The deformation of the sheet is more serious, resulting in the upturning or downturning of the tabs of the positive electrode sheet or the negative electrode sheet. The deformed positive electrode or negative electrode will scratch the punch or die, causing damage and affecting the reliability of production. [0003] In view of this, it is indeed necessary to provide a battery tab forming machine and a battery tab forming method that can be reliably produced. Contents of the invention [0004] The object of the present invention is to provide a battery tab forming machine and a...
Claims
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IPC IPC(8): H01M2/26B21D11/10
CPCY02E60/12Y02E60/10
Inventor 吴映烁
Owner DONGGUAN AMPEREX TECH