Recent advances in Ni-rich layered oxide particle materials for lithium-ion batteries (Open Access)--颗粒学报PARTICUOLOGY

Lu, Y., Zhang, Y., Zhang, Q., Cheng, F., & Chen, J. (2020). Recent advances in Ni-rich layered oxide particle materials for lithium-ion batteries. Particuology, 53, 1-11. https://doi.org/10.1016/j.partic.2020.09.004

Recent advances in Ni-rich layered oxide particle materials for lithium-ion batteries (Open Access)

Yong Lu, Yudong Zhang, Qiu Zhang, Fangyi Cheng, Jun Chen ^*

Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, Tianjin 300071, China

10.1016/j.partic.2020.09.004

Volume 53, December 2020, Pages 1-11

Received 20 August 2020, Revised 27 September 2020, Accepted 28 September 2020, Available online 24 October 2020, Version of Record 16 December 2020.

E-mail: chenabc@nankai.edu.cn

Highlights

• Progress on Ni-rich layered oxide particle materials for lithium-ion batteries.

• Structure, redox mechanism and problems of Ni-rich layered oxide particle materials.

• Primary particle engineering, surface coating, doping and concentration gradient.

• Combination of two or more strategies with synergistic effects in future works.

Abstract

Ni-rich layered oxides with chemical formula of LiNi_xCo_yMn_zO₂ or LiNi_xCo_yAl_zO₂ (x + y + z = 1, x ≥ 0.6) have been considered as promising cathode materials for lithium-ion batteries (LIBs) because of their high specific capacity (≥180 mAh g^–1) and acceptable manufacture cost. However, the problems associated with high Ni content severely restrict their large-scale applications. In this review, we summarize the recent advances in Ni-rich layered oxide particle materials for LIBs. We begin with the introduction of the structure, redox mechanism, and problems of Ni-rich layered oxides, mainly including residual lithium compounds, gas evolution, rock-salt phase formation, microcrack of particles, dissolution of transition-metal ions, and thermal runaway. Then, four strategies (primary particle engineering, surface coating, doping, concentration gradient design) toward solving the problems of Ni-rich layered oxides will be systematically discussed with the emphasis on structure-performance relationships. To achieve satisfied comprehensive performance and accelerate large-scale applications of Ni-rich layered oxides, the combination of two or more strategies (particle engineering and surface/bulk stabilization techniques) with synergistic effects is necessary in future works. This review would promote further research and application of high-performance Ni-rich layered oxide particle materials for LIBs.

Graphical abstract

Keywords

Lithium-ion batteries; Cathode materials; Ni-rich layered oxides; Particle materials; Design strategies

文章导读