POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY
Publication
EP3633774A1
Kind: A1
Mar 18, 2026
Applicants
Sumitomo Metal Mining Co., Ltd.
Inventors
KAGEURA, Jun-ichi, MAEDA, Yusuke
Abstract
A positive electrode active material for a lithium secondary battery includes secondary particles which are aggregates of primary particles that are capable of being doped and dedoped with lithium ions, in which the secondary particles have a total specific surface area of pores having a pore radius of 10 nm or more and 50 nm or less of 0.27 m<sup>2</sup>/g or more and 0.90 m<sup>2</sup>/g or less in a pore distribution measured by a mercury porosimetry method.
IPC Classifications
H01M 4/525 20100101AFI20210114BHEP
H01M 4/36 20060101ALI20210114BHEP
H01M 4/505 20100101ALI20210114BHEP
H01M 4/131 20100101ALI20210114BHEP
Designated States
AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR