Power storage device, method for manufacturing power storage device, and electronic device

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United States of America

PATENT NO 11942602
SERIAL NO

17676875

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Abstract

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To provide a power storage device whose charge and discharge characteristics are unlikely to be degraded by heat treatment. To provide a power storage device that is highly safe against heat treatment. The power storage device includes a positive electrode, a negative electrode, a separator, an electrolytic solution, and an exterior body. The separator is located between the positive electrode and the negative electrode. The separator contains polyphenylene sulfide or solvent-spun regenerated cellulosic fiber. The electrolytic solution contains a solute and two or more kinds of solvents. The solute contains LiBETA. One of the solvents is propylene carbonate.

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Patent Owner(s)

  • SEMICONDUCTOR ENERGY LABORATORY CO., LTD

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Narita, Kazuhei Kanagawa, JP 27 89
Oguni, Teppei Kanagawa, JP 104 998
Tajima, Ryota Kanagawa, JP 146 1376

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