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High‐Performance, Layered, 3D‐LiCoO 2 Cathodes with a Nanoscale Co 3 O 4 Coating via Chemical Etching
Author(s) -
Jeong Sookyung,
Park Soojin,
Cho Jaephil
Publication year - 2011
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201100029
Subject(s) - materials science , coating , cathode , layer (electronics) , etching (microfabrication) , electrochemistry , nanoscopic scale , nanotechnology , isotropic etching , electrode , optoelectronics , chemical engineering , electrical engineering , chemistry , engineering
Chemical etching concurrently modifies pristine to layer‐by‐layer 3D‐LiCoO 2 with a Co 3 O 4 coating. Not only can the layered morphology affect the high electrochemical performance, but also the coating effect reduces the structure instability of the LiCoO 2 during cycling. This process can be applied to design other compounds to enhance their performance in Li‐ion batteries.