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

被引：173
作者：
Barpanda, Prabeer [1 ,2 ]
Ye, Tian [1 ]
Avdeev, Maxim [3 ]
Chung, Sai-Cheong [1 ]
Yamada, Atsuo [1 ,2 ]
机构：
[1] Univ Tokyo, Dept Chem Syst Engn, Bunkyo Ku, Tokyo 1138656, Japan
[2] Kyoto Univ, Unit Elements Strategy Initiat Catalysts & Batter, ESICB, Kyoto 6158510, Japan
[3] Australian Nucl Sci & Technol Org, Bragg Inst, Kirrawee Dc, NSW 2232, Australia
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2013年 / 1卷 / 13期
关键词：
FE3+/FE2+ REDOX COUPLE; IRON PYROPHOSPHATE; CHALLENGES;
D O I：
10.1039/c3ta10210f
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
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.
引用
收藏
页码：4194 / 4197
页数：4
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