All-solid-state secondary battery including anode active material alloyable with lithium and method of charging the same

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United States of America Patent

PATENT NO 11764407
APP PUB NO 20210210791A1
SERIAL NO

17208142

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Abstract

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An all-solid-state secondary battery including: a cathode including a cathode active material layer; an anode including an anode current collector, and an anode active material layer on the anode current collector, wherein the anode active material layer includes an anode active material which is alloyable with lithium or forms a compound with lithium; and a solid electrolyte layer between the cathode and the anode, wherein a ratio of an initial charge capacity (b) of the anode active material layer to an initial charge capacity (a) of the cathode active material layer satisfies a condition of Equation 1: 0.01<(b/a)<0.5, wherein a is the initial charge capacity of the cathode active material layer determined from a first open circuit voltage to a maximum charging voltage, and b is the initial charge capacity of the anode active material layer determined from a second open circuit voltage to 0.01 volts vs. Li/Li+.

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Patent Owner(s)

Patent OwnerAddress
SAMSUNG ELECTRONICS CO LTDGYEONGGI DO SOUTH KOREA GYEONGGI-DO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aihara, Yuichi Yokohama, JP 92 457
Suzuki, Naoki Yokohama, JP 123 1425
Yamada, Takanobu Yokohama, JP 72 632
Yashiro, Nobuyoshi Yokohama, JP 24 104

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