Jump to main content
Jump to site search

Issue 5, 2021
Previous Article Next Article

A nanorod-like Ni-rich layered cathode with enhanced Li+ diffusion pathways for high-performance lithium-ion batteries

Author affiliations

Abstract

Ni-rich LiNixCoyMn1−xyO2 (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.

Graphical abstract: A nanorod-like Ni-rich layered cathode with enhanced Li+ diffusion pathways for high-performance lithium-ion batteries

Back to tab navigation

Supplementary files

Article information


Submitted
31 Oct 2020
Accepted
17 Dec 2020
First published
18 Dec 2020

J. Mater. Chem. A, 2021,9, 2830-2839
Article type
Paper

A nanorod-like Ni-rich layered cathode with enhanced Li+ diffusion pathways for high-performance lithium-ion batteries

F. Li, Z. Liu, J. Shen, X. Xu, L. Zeng, B. Zhang, H. Zhu, Q. Liu, J. Liu and M. Zhu, J. Mater. Chem. A, 2021, 9, 2830
DOI: 10.1039/D0TA10608A

Social activity

Search articles by author

Spotlight

Advertisements