VOCl as a Cathode for Rechargeable Chloride Ion Batteries

被引：113

作者：

Gao, Ping ^{[1
]}

Reddy, M. Anji ^{[1
]}

Mu, Xiaoke ^{[1
,2
]}

Diemant, Thomas ^{[3
]}

Zhang, Le ^{[1
]}

Zhao-Karger, Zhirong ^{[2
]}

Chakravadhanula, Venkata Sai Kiran ^{[1
,2
]}

Clemens, Oliver ^{[2
,4
]}

Behm, R. Juergen ^{[1
,3
]}

Fichtner, Maximilian ^{[1
,2
]}

机构：

[1] Helmholtz Inst Ulm Electrochem Energy Storage HIU, Helmholtzstr 11, D-89081 Ulm, Germany

[2] Karlsruhe Inst Technol, Inst Nanotechnol, POB 3640, D-76021 Karlsruhe, Germany

[3] Univ Ulm, Inst Surface Chem & Catalysis, Albert Einstein Allee 47, D-89081 Ulm, Germany

[4] Tech Univ Darmstadt, Joint Res Lab Nanomat, Jovanka Bontschits Str 2, D-64287 Darmstadt, Germany

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2016年 / 55卷 / 13期

关键词：

chloride ion batteries; electrochemistry; rechargeable batteries; vanadium oxychloride; INTERCALATION COMPOUNDS; IRON OXYCHLORIDE; FEOCL; XPS;

D O I：

10.1002/anie.201509564

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel room temperature rechargeable battery with VOCl cathode, lithium anode, and chloride ion transporting liquid electrolyte is described. The cell is based on the reversible transfer of chloride ions between the two electrodes. The VOCl cathode delivered an initial discharge capacity of 189mAhg(-1). A reversible capacity of 113mAhg(-1) was retained even after 100 cycles when cycled at a high current density of 522mAg(-1). Such high cycling stability was achieved in chloride ion batteries for the first time, demonstrating the practicality of the system beyond a proof of concept model. The electrochemical reaction mechanism of the VOCl electrode in the chloride ion cell was investigated in detail by exsitu X-ray diffraction (XRD), infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The results confirm reversible deintercalation-intercalation of chloride ions in the VOCl electrode.

引用

页码：4285 / 4290

页数：6

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