Tdk Corporation

Haruna Kato

Hiroshi Sato

Masahiro Oishi

Tomohiro Yano

Tetsuya Ueno

Taisuke Masuko

Gakuho Isomichi

A solid electrolyte layer includes a solid electrolyte and a compound represented by a composition formula MZr(PO). In the composition formula, M represents at least one selected from the group consisting of Na, K, Mg, Ca, Sr, Ba, Cu, Zn, and Ni, x satisfies 0<x≤2.5, and y satisfies 2.7≤y≤3.5.

Solid electrolyte layer, all-solid-state secondary battery, and manufacturing method of same

An all-solid lithium ion secondary battery includes a pair of electrodes and a solid electrolyte provided between the pair of electrodes. At least one of the pair of electrodes includes an active-material layer and an intermediate layer. An active material constituting the active-material layer has a core-shell structure which has a core region and a shell region and a composition of the intermediate layer is intermediate between the solid electrolyte and the shell region.

All-solid lithium ion secondary battery

An active material according to one aspect of the present invention includes a core region; and a shell region, in which an amount of transition metals in the core region is more than an amount of transition metals in the shell region, and an amount of oxygen deficiency in the shell region is more than an amount of oxygen deficiency in the core region.

Growing community of inventors

Tokyo, Japan

Haruna Kato