Length control device for lithium battery separator and length control cutting method for length control device
A lithium battery separator, fixed-length technology, applied in secondary batteries, secondary battery manufacturing, battery pack components, etc., can solve the problems of inaccurate size, poor control of tape tightness, time-consuming, etc. Intuitive, fast, and easy-to-use effects
Active Publication Date: 2017-06-09
ZHONGSHAN SHIBAO NEW ENERGY
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Problems solved by technology
Before manual winding, the diaphragm needs to be cut in advance according to the length of the design process. A general diaphragm cutting machine is composed of a diaphragm release shaft, a diaphragm collection turntable and a bracket. There are several diaphragm collection turntables that can move along the diameter of the turntable. Diaphragm support shaft, before cutting the diaphragm, you need to use a tape measure to measure the length of several support shaft circles, move the support shaft so that the length of the circle reaches the length that the diaphragm needs to cut, and then fix the support shaft, this kind of adjustment support The shaft method is time-consuming and the size is inaccurate due to poor control of the tightness of the tape measure
Method used
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[0028] The features of the present invention and other related features will be further described in detail below in conjunction with the accompanying drawings through embodiments, so as to facilitate the understanding of those skilled in the art:
[0029] Such as figure 1 As shown, a lithium battery diaphragm length fixing device includes a base 7, the base 7 is provided with a first support 6 and a second support 8, and the first support 6 is provided with a lithium battery diaphragm roll 10 Diaphragm release shaft 9 sleeved thereon, the second bracket 8 is provided with a diaphragm retraction turntable 5, and the diaphragm retraction turntable 5 is provided with a radius R for the lithium battery diaphragm 11 to be wound on it. The first semicircle support shaft 1 and the second semicircle support shaft 2, the diaphragm receiving rotating disk 5 is provided with a guide groove that facilitates the movement and adjustment of the first semicircle support shaft 1 and the secon...
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The invention discloses a length control device for a lithium battery separator and a length control cutting method for the length control device. A first semicircular supporting shaft and a second semicircular supporting shaft of which radii are both R are arranged on a separator receiving turn plate and can move on guiding grooves so as to adjust the positions, therefore, during actual use, actual lengths S(X) obtained in such a way that the lithium battery separator is wound on the peripheries of the first semicircular supporting shaft and the second semicircular supporting shaft by a circle can be controlled by adjusting the positions of the first semicircular supporting shaft and the second semicircular supporting shaft; besides, special scales are arranged on the separator receiving turn plate, so that the positions of the first semicircular supporting shaft and the second semicircular supporting shaft are favorably adjusted; the length control device is convenient to use, the actual lengths S(X) obtained in the way that the lithium battery separator is wound on the peripheries of the first semicircular supporting shaft and the second semicircular supporting shaft can be measured without using other tools, so that length control cutting of the lithium battery separator is facilitated.
Description
[0001] [technical field] [0002] The invention relates to a lithium battery diaphragm length-fixing device and a length-fixing cutting method thereof. [0003] [Background technique] [0004] Compared with other types of batteries such as lead-acid and nickel-cadmium, lithium-ion batteries have the advantages of large capacity, high operating voltage, fast charging speed, wide operating temperature range, long cycle life, small size, and light weight. At present, lithium-ion batteries have been widely used in mobile phones, notebook computers, electric tools and other fields, and their application range is becoming wider and wider. [0005] Lithium-ion batteries generally assemble positive and negative electrodes and separators together by winding or stacking, and some batteries are wound by hand. Before manual winding, the diaphragm needs to be cut in advance according to the length of the design process. The general diaphragm cutting machine is composed of a diaphragm relea...
Claims
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IPC IPC(8): H01M2/14H01M10/04H01M10/0525H01M10/058H01M50/406
CPCH01M10/04H01M10/0525H01M10/058H01M50/403Y02E60/10Y02P70/50
Inventor 李齐云王永锋
Owner ZHONGSHAN SHIBAO NEW ENERGY