Integrated all-solid-state secondary battery

Abstract

Methods for fabricating secondary batteries using a solid electrolyte in order to enhance the stability of secondary batteries are under study. However, a process in which an electrode and a solid electrolyte are separately prepared and then stacked to fabricate an all-solid-state secondary battery is not only complicated, but also may cause a side reaction due to the residual moisture between theelectrode and the solid electrolyte. In addition, additional processes are required for reducing interfacial resistance between an electrode and a solid electrolyte. In order to overcome such drawbacks, the present invention fabricates an integrated all-solid-state secondary battery by applying, to an electrode, a mixed slurry of a conductive ceramic material and a polymer in a solvent, evaporating the solvent, followed by absorbing the liquid electrolyte, and covering with a counter electrode. Such a fabrication method of an integrated all-solid-state secondary battery has the effect of simplifying fabrication steps, restraining side reactions, and reducing an interfacial resistance between an electrode and a solid electrolyte.

Description

technical field [0001] The present invention relates to an integrated all-solid-state secondary battery (Integrated all-solid-state secondary battery) in which electrodes and solid electrolytes are integrated and a manufacturing method thereof, wherein the above-mentioned integrated all-solid-state secondary battery will include a conductive ceramic material , a mixed slurry of a polymer and a solvent is applied to an electrode, and the solvent is dried, and then a liquid electrolyte is absorbed. Background technique [0002] In the prior art, the units required for the secondary battery such as electrodes, electrolytes, and separators are manufactured separately and then laminated together to manufacture the secondary battery. The all-solid secondary battery is also made in the same way as the existing method, after the solid-phase electrolyte is manufactured by an independent process, it is laminated with the electrode. Since the conventional method is to manufacture the ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to simplify the manufacturing process of the all-solid secondary battery by solving the problems in the manufacturing process of the existing all-solid secondary battery

[0005] The object of the present invention is to provide a novel solid electrolyte that solves the problems of existing solid phase electrolytes

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