Preparation method of all-solid-state thin-film lithium battery with micro-nano structure
A technology of micro-nano structure and lithium battery, which is applied in the manufacture of electrolyte batteries, secondary batteries, non-aqueous electrolyte batteries, etc. It can solve the problems that the microstructure of battery devices cannot be realized, and achieve the effect of increasing the effective power generation area and increasing the power density
Active Publication Date: 2021-03-05
深圳市格罗夫科技有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide a method for preparing an all-solid-state thin-film lithium battery with a micro-nano structure, aiming to solve the problem that the existing method for preparing an all-solid-state thin-film lithium battery cannot realize the microstructure of the battery device
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[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0023] In the description of the present invention, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.
[0024] combine Figure 1-7 , The embodiment of the present inventio...
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Abstract
The invention provides a method for preparing an all-solid-state thin-film lithium battery, comprising: preparing a second substrate on the surface of the first substrate; placing a mask on the surface of the second substrate away from the first substrate plate, the photoetching process makes the surface of the second substrate away from the first substrate have a micro-nano structure; sputtering deposits protective materials on the surface of the micro-nano structure of the second substrate to prepare the first protective layer Prepare a cathode current collector on the surface of the first protective layer; prepare a battery cathode by sputtering on the surface of the cathode collector; prepare an electrolyte layer on the surface of the battery cathode; prepare a battery anode on the surface of the electrolyte layer ; Prepare an anode current collector on the surface of the battery anode to form a solid battery unit; prepare a second protective layer on the surface of the solid battery unit; place the obtained sample in an organic solvent capable of dissolving photoresist, and clean it The photoresist material is removed to obtain an all-solid-state thin-film lithium battery with a micro-nano structure as a whole.
Description
technical field [0001] The invention belongs to the technical field of solid-state batteries, and in particular relates to a preparation method of an all-solid-state thin-film lithium battery with a three-dimensional micro-nano structure. Background technique [0002] All-solid-state thin-film lithium batteries belong to a new generation of lithium-ion batteries. Compared with traditional lithium batteries on the existing market, all-solid-state batteries replace traditional liquid electrolytes with solid electrolytes. Traditional lithium-ion batteries use liquid electrolytes, which are inherently flammable and pose a safety hazard. Moreover, because the liquid electrolyte is prone to generate lithium crystal dendrites between the positive and negative electrodes of the battery during the multiple charge and discharge processes of the battery, resulting in a short circuit between the positive and negative electrodes, causing the traditional lithium battery to be flammable an...
Claims
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IPC IPC(8): H01M10/0525H01M10/058
CPCY02E60/10Y02P70/50
Inventor 李致朋区定容
Owner 深圳市格罗夫科技有限公司