Issue 13, 2013
From the journal:

Journal of Materials Chemistry A

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

Prabeer Barpanda,*ab   Tian Ye,a   Maxim Avdeev,c   Sai-Cheong Chunga  and  Atsuo Yamada*ab  

* Corresponding authors

a Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8656, Japan
E-mail: prabeer@chemsys.t.u-tokyo.ac.jp, yamada@chemsys.t.u-tokyo.ac.jp
Fax: +81 3 5841 7488
Tel: +81 3 5841 7295

b Unit of Elements Strategy Initiative for Catalysts & Batteries, ESICB, Kyoto University, Kyoto 615-8510, Japan

c Bragg Institute, B87, Australian Nuclear Science and Technology Organization, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia

Abstract

Exploring novel low-cost cathodes for sodium-ion batteries, here we unveil β-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.

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

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Article information

DOI
https://doi.org/10.1039/C3TA10210F
Article type
Communication
Submitted
15 Jan 2013
Accepted
14 Feb 2013
First published
14 Feb 2013

J. Mater. Chem. A, 2013,1, 4194-4197

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

P. Barpanda, T. Ye, M. Avdeev, S. Chung and A. Yamada, J. Mater. Chem. A, 2013, 1, 4194 DOI: 10.1039/C3TA10210F

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