Panasonic intellectual property management co., ltd. (20250132327). POSITIVE ELECTRODE MATERIAL FOR SECONDARY BATTERIES
POSITIVE ELECTRODE MATERIAL FOR SECONDARY BATTERIES
Organization Name
panasonic intellectual property management co., ltd.
Inventor(s)
Yoshinori Satou of OSAKA FU JP
Takahito Nakayama of OSAKA FU JP
POSITIVE ELECTRODE MATERIAL FOR SECONDARY BATTERIES
This abstract first appeared for US patent application 20250132327 titled 'POSITIVE ELECTRODE MATERIAL FOR SECONDARY BATTERIES
Original Abstract Submitted
a positive electrode material for a secondary battery includes a secondary particle that is an aggregate of a plurality of primary particles. the primary particles contain a first metal oxide as a positive electrode active material. the primary particles include first primary particles disposed at a surface of the secondary particle, second primary particles disposed inside the secondary particle in contact with the first primary particles, and third primary particles disposed inside the secondary particle not in contact with the first primary particles. the positive electrode material further includes a second metal oxide attached at least to surfaces of the first primary particles and the second primary particles and having a composition different from the first metal oxide. the second metal oxide is not attached to surfaces of the third primary particles, or an amount attached thereto is smaller than an amount attached to the second primary particles.