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Updated: Apr 20, 2026
07:32
Dynamic Electrochemical Measurement of Chloride Ions
Published on: February 5, 2016
12.2K
Vanadium oxychloride/magnesium electrode systems for chloride ion batteries
Ping Gao1, Xiangyu Zhao, Zhirong Zhao-Karger
1Helmholtz-Institute Ulm for Electrochemical Energy Storage (HIU) , Helmholtzstrasse 11, 89081 Ulm, Germany.
ACS Applied Materials & Interfaces
|November 25, 2014
Summary
Researchers developed a novel rechargeable chloride ion battery. This vanadium oxychloride (VOCl) cathode battery demonstrates promising performance for future energy storage applications.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Rechargeable batteries are crucial for energy storage.
- Chloride ion batteries offer a potential alternative to conventional lithium-ion batteries.
- Vanadium oxychloride (VOCl) is explored as a cathode material.
Purpose of the Study:
- To report a new type of rechargeable chloride ion battery.
- To investigate the charge and discharge mechanism of a VOCl cathode.
- To evaluate the electrochemical performance of a VOCl-MgCl2/Mg full battery.
Main Methods:
- X-ray diffraction (XRD) for structural analysis.
- X-ray photoelectron spectroscopy (XPS) for surface chemistry.
- Electrochemical measurements (charge/discharge cycling) to assess performance.
Main Results:
- Demonstrated chloride ion transfer during battery cycling.
- Achieved a reversible capacity of 101 mAh g(-1) for the VOCl cathode at 10 mA g(-1).
- Retained 60 mAh g(-1) capacity after 53 cycles in the VOCl-MgCl2/Mg full battery.
Conclusions:
- A new rechargeable chloride ion battery system using VOCl cathode and Mg/MgCl2 anode has been successfully developed.
- The study elucidates the chloride ion transfer mechanism in the VOCl cathode.
- The VOCl-MgCl2/Mg battery shows potential for practical applications in energy storage.
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