Cobalt Hexacyanoferrate as Cathode Material for Na+ Secondary Battery

被引：113

作者：

Takachi, Masamitsu ^{[1
]}

Matsuda, Tomoyuki ^{[1
]}

Moritomo, Yutaka ^{[1
,2
]}

机构：

[1] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058577, Japan

[2] Univ Tsukuba, Tsukuba Res Ctr Interdisciplinary Mat Sci TIMS, Tsukuba, Ibaraki 3058577, Japan

来源：

APPLIED PHYSICS EXPRESS | 2013年 / 6卷 / 02期

关键词：

LITHIUM INTERCALATION BEHAVIOR; LONG CYCLE LIFE; PRUSSIAN BLUE; ELECTRODE MATERIALS; SODIUM-ION;

D O I：

10.7567/APEX.6.025802

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigated structural and electrochemical properties of thin film electrodes of cobalt hexacyanoferrate, NaxCo[Fe(CN)(6)](0.90)2.9H(2)O, against x. The compound exhibits a high capacity of 135 mAh/g and an average operating voltage of 3.6V against Na, with a good cyclability. The discharge curve exhibits two plateaus at approximate to 3.8 and approximate to 3.4 V, which are ascribed to the reduction processes of Fe3+ and Co3+, respectively. The ex situ X-ray diffraction (XRD) profiles reveal the robust nature of the host framework against Na+ intercalation/deintercalation. Thus, cobalt hexacyanoferrate is a promising candidate for the cathode material of sodium-ion secondary battery (SIB). (C) 2013 The Japan Society of Applied Physics

引用

页数：3

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