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Nickel‐Rich Layered Lithium Transition‐Metal Oxide for High‐Energy Lithium‐Ion Batteries
Author(s) -
Liu Wen,
Oh Pilgun,
Liu Xien,
Lee MinJoon,
Cho Woongrae,
Chae Sujong,
Kim Youngsik,
Cho Jaephil
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201409262
Subject(s) - lithium (medication) , cathode , materials science , energy density , transition metal , oxide , nickel , energy storage , thermal stability , ion , nickel oxide , nanotechnology , chemical engineering , engineering physics , metallurgy , chemistry , thermodynamics , engineering , catalysis , medicine , biochemistry , power (physics) , physics , organic chemistry , endocrinology
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 LiCoO 2 . 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.