Ionic conductor and electricity storage device

Abstract

Provided is an ionic conductor with which adhesion between particles can be enhanced simply by pressure-molding a powder without using sulfide ionic conductors and without performing firing or vapor deposition, and which can exhibit a high lithium ionic conductivity. This ionic conductor contains, in addition to an oxide lithium ionic conductor, a complex hydride.

Description

technical field [0001] The technology disclosed by this specification relates to ion conductors. Background technique [0002] In recent years, the demand for high-performance power storage devices has increased due to the spread of electronic devices such as personal computers and mobile phones, the spread of electric vehicles, and the expansion of the use of natural energy such as solar energy and wind power. Among them, the use of an all-solid lithium ion secondary battery (hereinafter referred to as "all-solid battery") in which all battery elements are made of solid is expected. Compared with conventional lithium-ion secondary batteries that use organic electrolytes in which lithium salts are dissolved in organic solvents, all-solid-state batteries are safe and can Simplifying the housing, therefore, improves the energy density per unit mass or unit volume. [0003] As the solid electrolyte used in the solid electrolyte layer and electrodes constituting the all-solid ...

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Problems solved by technology

However, since sulfide-based lithium ion conductors react with moisture in the air to generate hydrogen sulfide gas, it may not be preferable in terms of safety.

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