Murata Manufacturing Co., Ltd.

Murata Manufacturingco., Ltd.

Kazuhiko Morizawa

Hiroshi Kubota

Shigetaka Tomiya

Masatomo Tanaka

Yuto Horiuchi

Naoki Koshitani

Makiko Oikawa

A laminate structure includes a substrate; a first layer provided on a first surface of the substrate; and a second layer provided on a second surface of the substrate. The first layer includes a first end portion and a second end portion along a width direction of the substrate, the second layer includes a third end portion and a fourth end portion along the width direction of the substrate, the first end portion is opposite to the third end portion, the second end portion is opposite to the fourth end portion. An end surface of the third end portion includes an inclined surface or a stair shape or a combined shape of the inclined surface and the stair shape.

Laminate structure, production method thereof, and roll press device

A charge and discharge control device is provide. The charge and discharge control device includes a determination circuitry configured to determine an ion diffusion rate associated with electric conduction in a secondary battery, and determine a time integrated value of an overcharged amount of an active material based on the ion diffusion rate and a charge condition; an evaluation circuitry configured to evaluate the charge condition of the secondary battery based on a determination result obtained by the determination circuitry; and a charge and discharge controller configured to control state of current application and voltage application to the secondary battery at a time of charging or discharging the secondary battery based on an evaluation result obtained by the evaluation circuitry.

Charge and discharge control device, charge and discharge control method, battery pack, electronic equipment, electric vehicle, power tool and power storage system

Growing community of inventors

Kyoto, Japan

Kazuhiko Morizawa