Premium
Hierarchical NiCoO 2 Nanosheets Anchored on Hollow Carbon Spheres for High‐Performance Lithium‐Ion Battery Anodes
Author(s) -
Chen Sheng,
Liang Jin,
Pang Yuanchao,
Dong Bitao,
Xu Xin,
Ding Shujiang
Publication year - 2018
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201800102
Subject(s) - anode , lithium (medication) , materials science , carbon fibers , battery (electricity) , ion , chemical engineering , lithium ion battery , nanotechnology , current density , electrode , chemistry , composite material , composite number , physics , organic chemistry , medicine , power (physics) , quantum mechanics , engineering , endocrinology
Abstract This study reports the synthesis of hierarchical NiCoO 2 nanosheets growing on hollow carbon spheres (denoted as NiCoO 2 NSs@HCS) via a facile and low‐cost process. When evaluated as anode materials for lithium‐ion batteries, the as‐prepared NiCoO 2 NSs@HCS exhibits high specific capacity, enhanced cycling stability, and good rate capability. A high discharge capacity of 631.7 mA h g −1 is delivered even after 200 cycles at a current density of 400 mA g −1 , corresponding to approximately 92 % of the second reversible discharge capacity. The hierarchical and hollow structure of NiCoO 2 NSs@HCS plays a role in its excellent performance.