title: Nickel-rich layered lithium transition-metal oxide for high-energy lithium-ion batteries.
abstract: High energy-density lithium-ion batteries are in demand for portable electronic devices and electrical vehicles. Since the energy density of the batteries relies heavily on the cathode material used, major research efforts have been made to develop alternative cathode materials with a higher degree of lithium utilization and specific energy density. In particular, layered, Ni-rich, lithium transition-metal oxides can deliver higher capacity at lower cost than the conventional LiCoO2 . However, for these Ni-rich compounds there are still several problems associated with their cycle life, thermal stability, and safety. Herein the performance enhancement of Ni-rich cathode materials through structure tuning or interface engineering is summarized. The underlying mechanisms and remaining challenges will also be discussed.
authors: Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798 (Republic of Korea) http://www.jpcho.com.
authors: Wen
authors: W
authors: Liu
authors: Pilgun
authors: P
authors: Oh
authors: Xien
authors: X
authors: Liu
authors: Min-Joon
authors: MJ
authors: Lee
authors: Woongrae
authors: W
authors: Cho
authors: Sujong
authors: S
authors: Chae
authors: Youngsik
authors: Y
authors: Kim
authors: Jaephil
authors: J
authors: Cho
keywords: cation mixing; layered structure; lithium-ion batteries; nickel; surface reactions