A layer-structured Na2CoP2O7 pyrophosphate cathode for sodium-ion batteries

被引：96

作者：

Barpanda, Prabeer ^{[1
]}

Lu, Jiechen ^{[1
]}

Ye, Tian ^{[1
]}

Kajiyama, Masataka ^{[2
]}

Chung, Sai-Cheong ^{[1
]}

Yabuuchi, Naoaki ^{[2
,3
]}

Komaba, Shinichi ^{[2
,3
]}

Yamada, Atsuo ^{[1
,3
]}

机构：

[1] Univ Tokyo, Sch Engn, Dept Chem Syst Engn, Bunkyo Ku, Tokyo 1138656, Japan

[2] Tokyo Univ Sci, Dept Appl Chem, Shinjuku Ku, Tokyo 1628601, Japan

[3] Kyoto Univ, ESICB, Unit Elements Strategy Initiat Catalysts & Batter, Kyoto 6158510, Japan

来源：

RSC ADVANCES | 2013年 / 3卷 / 12期

关键词：

RECHARGEABLE LITHIUM BATTERIES; ELECTROCHEMICAL INTERCALATION; POSITIVE-ELECTRODE; IRON PYROPHOSPHATE; NA BATTERIES; CHALLENGES; MECHANISM; INSERTION;

D O I：

10.1039/c3ra23026k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We introduce Na2CoP2O7 pyrophosphate as a new potential cathode for sodium-ion batteries. Based on a layered structure, it offers a two-dimensional Na-diffusion pathway delivering a reversible capacity close to 80 mA h g(-1) involving Co3+/Co2+ redox activity with an average potential of 3 V.

引用

页码：3857 / 3860

页数：4

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