Jtekt Corporation

Yusuke Kimoto

Koji Nishi

Takumi Mio

Takafumi Fujii

Yukihiro Komatsubara

Naoki Ohmi

Kentaro Iizuka

A lithium ion secondary battery that can operate in a high-temperature environment of 85° C. The lithium ion secondary battery includes a positive electrode active material that can store and release lithium ions Li', a positive electrode binder that binds the positive electrode active material, a negative electrode active material that can store and release lithium ions Li, a negative electrode binder that binds the negative electrode active material, and an electrolytic solution containing an organic solvent and an imide-based lithium salt. The negative electrode active material is previously doped with lithium ions. The positive electrode binder has a Hansen solubility parameter-based relative energy difference (RED) value of more than 1 with respect to the electrolytic solution.

Lithium ion secondary battery

An alkali metal ion capacitor that is capable of operating in a high-temperature environment at 85&#xb0; C. The alkali metal ion capacitor is provided with: a positive electrode active material capable of adsorbing and desorbing alkali metal ions; a positive electrode binder for binding the positive electrode active material; a negative electrode active material capable of storing and releasing alkali metal ions; a negative electrode binder for binding the negative electrode active material; and an electrolytic solution that contains an organic solvent and an imide-based alkali metal salt. The negative electrode active material is predoped with alkali metal ions. The positive electrode binder has a Hansen solubility parameter-based RED value of more than 1 with respect to the electrolytic solution.

Alkali metal ion capacitor

Growing community of inventors

Osaka, Japan

Yusuke Kimoto