Press Releases | March 15, 2022

Towards all solid-state batteries based on the mechanical properties of their components

Prof. Matsuda research group at Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, revealed that an indentation test can effectively evaluate the mechanical properties of a sulfide solid electrolyte for all-solid-state lithium-ion secondary batteries. Since the sulfide solid electrolyte must be handled in an inert atmosphere due to its atmospheric instability, research on mechanical properties is limited. Against this background, the research group found that mechanical properties of a sulfide solid electrolyte can be evaluated by using indentation tests with glove bags filled Ar gas to maintain an inert atmosphere. This result is expected to be applied in battery design based on the mechanical properties of the battery components.

Full text: Building a new mechanical property evaluation method for atmospherically unstable sulfide solid electrolyte
TUT website: Press release