Nano letters
Surface Gradient Engineering Relaxes Stress Concentration in Ultrahigh-Ni Cathodes, Enabling Superior Cyclability in Pouch Cells.
Haifeng Yu, Wenshuai Guo, Liyun Yao, Li Zhang, Ling Chen, Hao Jiang, Chunzhong Li
Published: 202510.1021/acs.nanolett.5c04350
Abstract
Developing ultrahigh-Ni cathodes is critical for advancing next-generation high-energy Li-ion batteries (LIBs), yet reducing the Co content exacerbates mechanochemical degradation and lowers Li-ion transport. Herein, we design a surface low-Co-gradie…
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