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Self‐Induced Concentration Gradient in Nickel‐Rich Cathodes by Sacrificial Polymeric Bead Clusters for High‐Energy Lithium‐Ion Batteries
Author(s) -
Kim Junhyeok,
Cho Hyeon,
Jeong Hu Young,
Ma Hyunsoo,
Lee Jieun,
Hwang Jaeseong,
Park Minjoon,
Cho Jaephil
Publication year - 2017
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.201602559
Subject(s) - materials science , lithium (medication) , cathode , nickel , reagent , cluster (spacecraft) , coating , nanotechnology , chemical engineering , computer science , organic chemistry , metallurgy , chemistry , medicine , engineering , programming language , endocrinology
A high‐energy nickel‐rich cathode with primary particle concentration gradient is developed via a simple, one‐step process involving a sacrificial polymeric‐bead cluster. The primary particles' gradients and internal buffer space in the secondary particles are successfully formed without any surface coating reagents. It is demonstrated that the cathode material has a high specific capacity and thermal stability.