Method for the production of an all-solid battery

Abstract

The invention relates to a battery production method comprising at least the following steps: production of at least one solid electrolyte film (20) against a substrate (10) of a material that can form an electrode; production of a first electrode (30) in contact with the electrolyte (20); and thinning of the substrate (10), such that at least one remaining portion of the substrate (10), which is in contact with the solid electrolyte film (20), forms a second electrode (12, 12').

Description

technical field [0001] The present invention relates to the field of solid-state electrolyte batteries, which are called all-solid-state batteries. The invention more particularly relates to the structure of such batteries and methods of making them. The invention can advantageously be used in the manufacture of batteries or microbatteries. Background technique [0002] The characteristic of an all-solid-state battery or microbattery in the sense understood in this document relates to the fact that it comprises at least one solid-state electrolyte interposed between two electrodes. Stacked in solid form, these three layers form an electrochemical cell. The electrochemical cell has a thickness of less than about 15 μm, for example, in the case of microbatteries, of the order of tens of microns. [0003] Electrochemical cells generate electricity when ions migrate between two electrodes, and more specifically, when ions migrate from the anode to the cathode. The electrolyt...

AI Technical Summary

Problems solved by technology

[0015] Therefore, it is difficult to fabricate all-solid-state batteries or microbatteries with both high energy storage capacity (thick electrodes) and operation at high power ratings (thin electrolyte)

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