一组科学家已经确定了锂离子电池阴极材料退化的原因，以及可能的补救措施。他们的研究结果可能导致开发出更经济、性能更好的电动汽车电池。

Cause of cathode degradation identified for nickel-rich materials

https://www.sciencedaily.com/releases/2019/03/190315095857.htm

Journal Reference:

1. Yuwei Mao, Xuelong Wang, Sihao Xia, Kai Zhang, Chenxi Wei, Seongmin Bak, Zulipiya Shadike, Xuejun Liu, Yang Yang, Rong Xu, Piero Pianetta, Stefano Ermon, Eli Stavitski, Kejie Zhao, Zhengrui Xu, Feng Lin, Xiao-Qing Yang, Enyuan Hu, Yijin Liu. High-Voltage Charging-Induced Strain, Heterogeneity, and Micro-Cracks in Secondary Particles of a Nickel-Rich Layered Cathode Material. Advanced Functional Materials, 2019; 1900247 DOI: 10.1002/adfm.201900247