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

被引：168

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

页码：4194 / 4197

页数：4

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