Non-aqueous electrolyte secondary cell

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United States of America Patent

PATENT NO 11870035
APP PUB NO 20210083325A1
SERIAL NO

16640293

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Abstract

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A non-aqueous electrolyte secondary cell provided with a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode has a positive electrode active material that contains composite oxide particles which include Ni, Co, Li, and at least one of Mn and Al, and in which the proportion of Ni in relation to the total number of moles of metal elements excluding Li is at least 80 mol %. In the composite oxide particles, the ratio (B/A) of the post-particle-compression-test BET specific surface area (B) with respect to the pre-particle-compression-test BET specific surface area (A) is 1.0-3.0. The non-aqueous electrolyte contains a non-aqueous solvent and a cyclic carboxylic anhydride such as diglycolic anhydride.

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Patent Owner(s)

Patent OwnerAddress
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTDOSAKA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tsuji, Tomoki Osaka, JP 17 28
Zhong, Yuanlong Osaka, JP 14 32

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