Mitsui Minings & Melting Co., Ltd.

Taizo Morinaka

Jun-ichi Itoh

Asuka Sasakura

Shigeki Nakayama

Jun-Ichi Itoh

A solid electrolyte contains aluminum in an amount of 100 to 1000 ppm, inclusive, on a mass basis, and has lithium ion conductivity. It is preferable that aluminum is derived from an oxide of aluminum. It is also preferable that the solid electrolyte is a sulfide solid electrolyte containing a lithium element, a phosphorus element, and a sulfur element. It is also preferable that the solid electrolyte has an argyrodite-type crystal structure. It is also preferable that the solid electrolyte has a lithium ion conductivity of 4.0 mS/cm or greater.

Solid electrolyte, electrode mixture, solid electrolyte layer, and all-solid-state battery

An emitting phosphor is provided, which can be excited by a blue LED or a near-UV LED, emit visible light and increase internal quantum efficiency. An emitting phosphor is proposed, comprising an orthorhombic crystal system comprising Ga and S, wherein the orthorhombic crystal system has, in an XRD pattern using a Cu K&#x3b1; beam, a proportion of the diffraction intensity of the maximum peak appearing at diffraction angle 2&#x3b8;=16.0 to 18.0&#xb0; with respect to the diffraction intensity of the maximum peak appearing at diffraction angle 2&#x3b8;=23.6 to 24.8&#xb0; of 0.4 or greater.

Growing community of inventors

Hida, Japan

Taizo Morinaka