Searching for a new material to build the next-generation rechargeable lithium-ion batteries (LIBs) with high electrochemical performance is urgently required. Owing to the low-cost, non-toxicity, and high-safety, the family of manganese oxide including the Na-Mn-O system is regarded as one of the most promising electrode materials for LIBs. Herein, a new strategy is carried out to prepare a highly porous and electrochemically active Na0.55Mn2O4·1.5H2O (SMOH) compound. As an anode material, the Na-Mn-O nanocrystal material dispersed within a carbon matrix manifests a high reversible capacity of 1015.5 mA h g?1 at a current density of 0.1 A g?1. Remarkably, a considerable capability of 546.8 mA h g?1remains even after 2000 discharge/charge cycles at the higher current density of 4 A g?1, indicating a splendid cyclability. The exceptional electrochemical properties allow SMOH to be a promising anode material toward LIBs.

Jie Zhang, Ting He, Wei Zhang, Jinzhi Sheng,Ibrahim Saana Amiinu, Zongkui Kou, Jinlong Yang, Liqiang Mai and Shichun Mu*. Na-Mn-O nanocrystals as a High Capacity and Long Life Anode Material for Li-ion Batteries, Advanced Energy Materials, 2017, 7(5),1062092.

http://onlinelibrary.wiley.com/doi/10.1002/aenm.201602092/abstract;jsessionid=C05A07DD3B9C1C8F2CF2AC9F81D27269.f01t04

该新闻报道出处：http://www.materialsviewschina.com/2017/03/24366/