Kabushiki Kaisha Nihon Micronics

Hikaru Takano

Takashi Tonokawa

Kazuyuki Tsunokuni

Tomokazu Saito

Shigefusa Chichibu

Takuo Kudoh

Harutada Dewa

Kazunobu Kojima

Yutaka Kosaka

A secondary battery includes: a first oxide semiconductor having a first conductivity type; a first charging layer disposed on the first oxide semiconductor layer, and composed by including a first insulating material and a second oxide semiconductor having the first conductivity type; a second charging layer disposed on the first charging layer; a third oxide semiconductor layer having a second conductivity type disposed on the second charging layer; and a hydroxide layer disposed between the first charging layer and the third oxide semiconductor layer, and containing a hydroxide of a metal constituting the third oxide semiconductor layer. The highly reliable secondary battery is capable of improving an energy density and increasing battery characteristics (electricity accumulation capacity).

Secondary battery

A secondary battery according to the present invention includes a first electrode, a second electrode, a charging layer arranged between the first electrode () and the second electrode and containing a mixture of an insulating material and a first n-type oxide semiconductor material, an n-type oxide semiconductor layer arranged between the charging layer and the first electrode and containing a second n-type oxide semiconductor material, a p-type oxide semiconductor layer () arranged between the charging layer and the second electrode and containing a p-type oxide semiconductor material, a mixture layer arranged between the charging layer and the p-type oxide semiconductor layer and containing a mixture of silicon oxide and a third n-type oxide semiconductor material, and a conductive layer arranged between the first electrode and the n-type oxide semiconductor layer and containing a metal material.

Growing community of inventors

Tokyo, Japan

Hikaru Takano