METHOD FOR PREPARING DOUBLE-LAYER CATHODE ACTIVE MATERIALS FOR LITHIUM SECONDARY BATTERIES
摘要
Disclosed herein are double-layer cathode active materials comprising a nickel-based cathode active material as an inner layer material and a transition metal mixture-based cathode active material as an outer layer material facing an electrolyte. Since the nickel-based cathode active material as an inner layer material has high-capacity characteristics and the transition metal mixture-based cathode active material as an outer layer material facing an electrolyte has superior thermal safety, the double-layer cathode active materials have high capacity, high charge density, improved cycle characteristics and superior thermal safety.
申请公布号
EP1831943(A1)
申请公布日期
2007.09.12
申请号
EP20050740809
申请日期
2005.04.26
申请人
IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
发明人
SUN, YANG KOOK, DAECHI HYUNDAI APT. 104-1603;SHIN, HO SUK, 103-203 HANGANG GEUKDONG APT.;KIM, MYUNG HOON, 63-18 SINHEUNG-DONG