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NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK

Application US20260081150A1 Kind: A1 Mar 19, 2026

Assignee

KABUSHIKI KAISHA TOSHIBA

Inventors

Naoki NISHIO, Toshitada NAKAZAWA

Abstract

According to one embodiment, provided is a nonaqueous electrolyte battery including a positive electrode containing a lithium-containing nickel-cobalt-manganese oxide, a negative electrode containing a lithium titanium-containing oxide, and a nonaqueous electrolyte. A ratio PLi—F/PNi of a peak intensity PLi—F of a highest intensity peak within 682 eV to 685 eV to a peak intensity PNi of a highest intensity peak within 850 eV to 858 eV in an X-Ray photoelectron spectrum of a positive electrode surface is 0.6 or more and 1 or less. A ratio NLi—F/NTi of a peak intensity NLi—F of a highest intensity peak within 682 eV to 685 eV to a peak intensity NTi of a highest intensity peak within 454 eV to 460 eV in an X-Ray photoelectron spectrum of a negative electrode surface is 1.8 or more and 3 or less.

CPC Classifications

H01M 4/525 H01M 4/485 H01M 10/0525

Filing Date

2025-11-26

Application No.

19401785