A nanorod-like Ni-rich layered cathode with enhanced Li+ diffusion pathways for high-performance lithium-ion batteries
作者:Li, FK (Li, Fangkun)[ 1 ] ; Liu, ZB (Liu, Zhengbo)[ 1 ] ; Shen, JD (Shen, Jiadong)[ 1 ] ; Xu, XJ (Xu, Xijun)[ 1 ] ; Zeng, LY (Zeng, Liyan)[ 1 ] ; Zhang, BH (Zhang, Binghao)[ 2 ] ; Zhu, H (Zhu, He)[ 2 ] ; Liu, Q (Liu, Qi)[ 2 ] ; Liu, J (Liu, Jun)[ 1 ] ; Zhu, M (Zhu, Min)[ 1 ]
查看 Web of Science ResearcherID 和 ORCID
JOURNAL OF MATERIALS CHEMISTRY A
卷: 9 期: 5 页: 2830-2839
DOI: 10.1039/d0ta10608a
出版年: FEB 7 2021
文献类型:Article
查看期刊影响力
摘要
Ni-rich LiNixCoyMn1-x-yO2 (x >= 0.6) layered oxide cathodes are among the most promising cathode materials for lithium-ion batteries (LIBs) owing to their superior capacity, prominent energy density and low cost. However, the large volume change caused by phase transition and poor diffusion kinetics limits their application. Herein, a nanorod-like Ni-rich layered LiNi0.6Co0.2Mn0.2O2 cathode is synthesized via a facile surfactant-free co-precipitation route. Due to the unique nanorod morphology, more {010} electrochemically active planes are exposed. As a result, structural stability and diffusion kinetics are greatly improved. In terms of performance, it exhibits outstanding structural stability (the volume change is as small as 2.12% in the processes of charging and discharging) and rate performance (achieving a high discharge capacity of 152.2 mA h g(-1) at 5C). Such rationally designed cathode could meet the high high-energy requirements of next generation LIBs.
作者信息
通讯作者地址:
South China University of Technology South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China.
City University of Hong Kong City Univ Hong Kong, Dept Phys, Hong Kong 999077, Peoples R China.
通讯作者地址: Liu, J (通讯作者)
显示更多 South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China.
通讯作者地址: Liu, Q (通讯作者)
显示更多 City Univ Hong Kong, Dept Phys, Hong Kong 999077, Peoples R China.
地址:
显示更多 [ 1 ] South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
显示更多 [ 2 ] City Univ Hong Kong, Dept Phys, Hong Kong 999077, Peoples R China
电子邮件地址:qiliu63@cityu.edu.hk; msjliu@scut.edu.cn
基金资助致谢
基金资助机构显示详情 授权号
National Natural Science Foundation of China (NSFC)
51771076
National Natural Science Foundation of China (NSFC)
NSFC51621001
Guangdong Pearl River Talents Plan
2017GC010218
Guangdong Provincial Key Field Research and Development Program Project
2020B0101030005
查看基金资助信息
出版商
ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Chemistry; Energy & Fuels; Materials Science
Web of Science 类别:Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary