Murata Manufacturing Co., Ltd.

Hydro-quebec

Yuichiro Asakawa

Jean-Christophe Daigle

Hiroshi Ueno

Karim Zaghib

Takuma Sakamoto

Sho Takahashi

Shinichi Uesaka

Charlotte Mallet

Sylviane Rochon

Antoine Lafleur-Lambert

Melanie Beaupre

Hirofumi Tsuiki

Birhanu Assresahegn Dasalegn

Uesaka Shinichi

Zaghib Karim

Lafleur-Lambert Antoine

Squaric acid-based polymers and their use in electrode materials and/or electrolyte compositions, as well as their production processes are described herein. Also described are electrode materials, electrodes, electrolyte compositions, electrochemical cells, electrochemical accumulators, and optoelectronic devices comprising the polymers and their uses.

Squaric acid-based polymers, their manufacturing processes and their uses

A lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The negative electrode includes a negative electrode active material having a reaction potential of 0.5 V or higher than a lithium electrode, and has an electrochemical capacity per unit area of less than or equal to an electrochemical capacity per unit area of the positive electrode. The electrolytic solution includes a solvent, an electrolyte salt, and at least one of a diphenyl carbonate compound, an unsaturated cyclic carbonate ester, a first maleic anhydride compound, and a second maleic anhydride compound.

Lithium-ion secondary battery

A lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The electrolytic solution includes a solvent, an electrolyte salt, and an aminoanthraquinone polymer compound. The aminoanthraquinone polymer compound includes a divalent maleic anhydride part and a divalent aminoanthraquinone derivative part.

Electrolytic solution for lithium-ion secondary battery and lithium-ion secondary battery

Growing community of inventors

Tokyo, Japan

Yuichiro Asakawa