Cathode active material and lithium secondary battery using same
Номер патента: EP2511972A4
Опубликовано: 10-07-2013
Автор(ы): DongHun Lee, Hong Kyu Park, Jinhyung LIM, Sin young PARK, Sung-Kyun Chang
Принадлежит: LG Chem Ltd
Опубликовано: 10-07-2013
Автор(ы): DongHun Lee, Hong Kyu Park, Jinhyung LIM, Sin young PARK, Sung-Kyun Chang
Принадлежит: LG Chem Ltd
Реферат: Disclosed is a cathode active material for secondary batteries comprising at least one compound selected from the following formula 1: (1-s-t)[Li(Li a Mn (1-a-x-y) Ni x Co y )O 2 ]*s[Li 2 CO 3 ]*t[LiOH] (1) wherein 0<a<0.2, 0<x<0.9, 0<y<0.5, a+x+y<1, 0<s<0.03, and 0<t<0.03; and a, x and y represent a molar ratio, and a and t represent a weight ratio. The cathode active material has long lifespan at room temperature and high temperatures and provides superior stability, although charge and discharge are repeated at a high current.
Positive electrode active material, preparation method therefor, positive electrode sheet, secondary battery, battery module, battery pack and electric apparatus
Номер патента: EP4394938A1. Автор: Yao Jiang,XinXin Zhang,Chuying OUYANG,Tianci YUAN,Shangdong CHEN,Lingjing WU,Weibin KANG. Владелец: Contemporary Amperex Technology Co Ltd. Дата публикации: 2024-07-03.