Guo Shaohua, Yu Haijun, Liu Dequan, Tian Wei, Liu Xizheng, Hanada Nobuko, Ishida Masayoshi, Zhou Haoshen
Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Japan.
Chem Commun (Camb). 2014 Jul 28;50(59):7998-8001. doi: 10.1039/c4cc02362e.
A novel tunnel Na(0.61)Ti(0.48)Mn(0.52)O2 material is explored as a cathode for sodium-ion batteries for the first time. It can deliver a reversible discharge capacity of 86 mA h g(-1) with an average voltage of 2.9 V at 0.2 C rate in a sodium half cell, exhibiting good rate capability and capacity retention at a cut-off voltage of 1.5-4 V. These results indicate that tunnel Na(0.61)Ti(0.48)Mn(0.52)O2 has a great potential application in large scale energy storage.
首次探索了一种新型隧道结构的Na(0.61)Ti(0.48)Mn(0.52)O2材料作为钠离子电池的阴极。在钠半电池中，它在0.2 C倍率下可提供86 mA h g(-1)的可逆放电容量，平均电压为2.9 V，在1.5 - 4 V的截止电压下表现出良好的倍率性能和容量保持率。这些结果表明，隧道结构的Na(0.61)Ti(0.48)Mn(0.52)O2在大规模储能方面具有巨大的潜在应用价值。
