Automatic ultra-thin lithium sheet surface treatment device and application method thereof
A surface treatment device, ultra-thin lithium technology, applied in chemical instruments and methods, cleaning methods using tools, electrodes of primary batteries, etc., can solve the problem of reducing battery power performance, increasing battery internal resistance, and affecting the consistency of lithium sheets and other issues, to achieve the effect of realizing the whole process of mechanization, improving process productivity, reliability and quality stability
Pending Publication Date: 2021-10-15
CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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Problems solved by technology
[0005] The problem to be solved by the present invention is to provide an automatic ultra-thin lithium sheet surface treatment device and its use method, which can effectively solve the problem that the manual brushing force cannot be strictly controlled in the prior art. If the brushing force is too light, lithium and current collector The binding force is poor and easy to separate, which will increase the internal resistance of the battery, reduce the power performance of the battery, and even the negative tab may fall off in the subsequent process, seriously affecting the product qualification rate; if the brushing force is too heavy, it may cause deformation of the lithium metal sheet , and due to individual differences among operators, it will affect the consistency of lithium tablets
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[0032] Below in conjunction with embodiment and accompanying drawing, the present invention will be further described:
[0033] In the description of the embodiments of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the Describes, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate in a specific orientation, and therefore should not be construed as limiting the invention. In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connectio...
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Abstract
The invention provides an automatic ultra-thin lithium sheet surface treatment device and an application method thereof. The device comprises a base, a positioning and pressing component arranged on the base and used for fixing a lithium sheet, a brush component arranged on the base, located at one side of the positioning and pressing component and used for treating the surface of the lithium sheet; and a pushing and guiding component arranged on the base, located at the bottom of the positioning and pressing component and used for moving the positioning and pressing component. The device has the beneficial effects that the ultra-thin lithium sheet surface treatment is mechanized and automatic, the consistency of metal lithium sheet treatment can be ensured, so that the reliability and quality stability of a single battery are improved, the original manual surface treatment mode occupies more manpower, the productivity is limited, and after the surface treatment is mechanized, the treatment effect is ensured, the production capacity of the working procedure is effectively improved, and whole-process mechanization and automation of metal lithium plate preparation can be realized by matching with other working procedure equipment for ultra-thin lithium plate preparation.
Description
technical field [0001] The invention belongs to the technical field of negative electrode surface treatment of lithium primary batteries, and in particular relates to an automatic ultra-thin lithium sheet surface treatment device and a use method thereof. Background technique [0002] Lithium primary battery is a primary battery with metallic lithium as the negative electrode, and the discharge specific energy can reach more than 300Wh / kg, which has the advantages of high specific energy and long storage life. In recent years, with the continuous improvement of the technical level of new intelligent equipment, the demand for power lithium primary batteries that can be discharged at high power (>0.5C) for a long time is becoming more and more urgent. [0003] In the preparation process of flexible packaging lithium primary batteries, the lithium foil is generally cut to a specified size first, and then the current collector and metal lithium foil are cold-pressed and press...
Claims
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IPC IPC(8): B08B1/00H01M4/12
CPCH01M4/12H01M2004/027B08B1/12
Inventor 杨芳凝邢鑫磊刘雪省郭际苏晓倩王九洲孟宪玲荆有泽郑海山
Owner CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST