A new polymorph of Na2MnP2O7 as a 3.6 V cathode material for sodium-ion batteries

作者:Barpanda Prabeer*; Ye Tian; Avdeev Maxim; Chung Sai Cheong; Yamada Atsuo
来源:Journal of Materials Chemistry A, 2013, 1(13): 4194-4197.
DOI:10.1039/c3ta10210f

摘要

Exploring novel low-cost cathodes for sodium-ion batteries, here we unveil beta-Na2MnP2O7, a new pyrophosphate cathode. Stabilizing into a triclinic structure, it was found to be electrochemically active, delivering a discharge capacity approaching 80 mA h g(-1) along with the highest ever Mn3+/Mn2+ redox potential located at 3.6 V.

  • 出版日期2013