Jingyao Cai, Yan Wei, Yanbing Zhu, Liyuan Tian, Jiandong Zhang, Yan Shen, Mingkui Wang
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引用次数: 0
Abstract
We report nitrogen-doped carbon-coating to increase rate capability and cycle stability of NaCrO2 cathode for sodium ion battery application. The nitrogen-doped carbon coating layer can effectively reduce electrode surface impedance and accelerate Na+ ion diffusion to allow high-rate performance. The coating layer can suppress the electrode/electrolyte side reactions and inhibit the degradation of NaCrO2, thereby markedly enhancing cathode cycling stability. Consequently, the NaCrO2 cathode exhibits a specific capacity of 95.6mAh/g at 50C and a capacity retention of 91.4 % after 1000 cycles at 10C.
期刊介绍：
Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.
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