A NOVEL REDOX FLOW BATTERY WITH HIGH ENERGY DENSITY BASED ON THE ZINC /POLYHALIDE REDOX CHEMISTRIES

摘要：

A novel zinc/polyhalide redox flow battery (ZPB) is proposed, which employs Br-/CIBr2-and Zn/Zn2+ redox couples in the positive and negative half-cells respectively. The reversibility of the redox chemistries was investigated by cyclic voltammetry measurements. The performance of ZPB was evaluated by charge-discharge cycling tests at the current density of 20 mA/cm2. A high energy efficiency of 81％ was achieved based on the coulombic efficiency of 96％ and the voltage efficiency of 84％. Especially, the actual energy density of ZPB could be above 77 Wh/kg. Therefore, the ZPB technology is expected to provide high performance and energy density at an acceptable cost.

关键词： energy storage polyhalide redox flow battery zinc

作者: Liqun Zhang

作者单位: Division of energy storage, Dalian institute of Chemical Physics, Chinese Academy of Sciences 457 Zhongshan Road, Dalian 116023 (China)

会议类型: 国际会议

会议名称: The 7th International Green Energy Conference & The 1st DNL Conference on Clean Energy(第七届绿色能源国际会议暨第一届DNL洁净能源会议(IGEC)

会议地点: 大连

会议语种:英文

页码: 63

在线出版日期: 2012-05-28（万方平台首次上网日期，不代表论文的发表时间）