Progress of Single-Crystal Nickel-Cobalt-Manganese Cathode Research

Ruixia Chu, Yujian Zou, Peidong Zhu, Shiwei Tan, Fangyuan Qiu, Wenjun Fu, Fu Niu and Wanyou Huang ()
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Ruixia Chu: Departments of Energy and Power Engineering, Automotive Engineering College, Shandong Jiaotong University, Jinan 250357, China
Yujian Zou: Departments of Energy and Power Engineering, Automotive Engineering College, Shandong Jiaotong University, Jinan 250357, China
Peidong Zhu: Departments of Energy and Power Engineering, Automotive Engineering College, Shandong Jiaotong University, Jinan 250357, China
Shiwei Tan: Departments of Energy and Power Engineering, Automotive Engineering College, Shandong Jiaotong University, Jinan 250357, China
Fangyuan Qiu: Departments of Energy and Power Engineering, Automotive Engineering College, Shandong Jiaotong University, Jinan 250357, China
Wenjun Fu: Departments of Energy and Power Engineering, Automotive Engineering College, Shandong Jiaotong University, Jinan 250357, China
Fu Niu: Departments of Energy and Power Engineering, Automotive Engineering College, Shandong Jiaotong University, Jinan 250357, China
Wanyou Huang: Departments of Energy and Power Engineering, Automotive Engineering College, Shandong Jiaotong University, Jinan 250357, China

Energies, 2022, vol. 15, issue 23, 1-32

Abstract: The booming electric vehicle industry continues to place higher requirements on power batteries related to economic-cost, power density and safety. The positive electrode materials play an important role in the energy storage performance of the battery. The nickel-rich NCM (LiNi x Co y Mn z O 2 with x + y + z = 1) materials have received increasing attention due to their high energy density, which can satisfy the demand of commercial-grade power batteries. Prominently, single-crystal nickel-rich electrodes with s unique micron-scale single-crystal structure possess excellent electrochemical and mechanical performance, even when tested at high rates, high cut-off voltages and high temperatures. In this review, we outline in brief the characteristics, problems faced and countermeasures of nickel-rich NCM materials. Then the distinguishing features and main synthesis methods of single-crystal nickel-rich NCM materials are summarized. Some existing issues and modification methods are also discussed in detail, especially the optimization strategies under harsh conditions. Finally, an outlook on the future development of single-crystal nickel-rich materials is provided. This work is expected to provide some reference for research on single-crystal nickel-rich ternary materials with high energy density, high safety levels, long-life, and their contribution to sustainable development.

Keywords: single-crystal; nickel-rich NCM materials; cathode (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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