V(Ⅲ)-V(Ⅳ)电解液的电解合成  

Synthesis of V(Ⅲ)-V(Ⅳ) Electrolyte by Electrolysis

作　　者：冯秀丽[1] 刘联[1] 李晓兵[1] 陈茂斌[1] 刘效疆[1] 

机构地区：[1]中国工程物理研究院电子工程研究所,四川绵阳621900

出　　处：《合成化学》2008年第5期519-523,共5页Chinese Journal of Synthetic Chemistry

基　　金：中国工程物理研究院军转民资助项目(JM2008506-2)

摘　　要：以硫酸氧钒(VOSO4)为原料,电解合成了用于制备钒电池的混合价态钒离子[V(Ⅲ)-V(Ⅳ)]电解液。较适宜的电化学反应条件为:以Ir-Ta/Ti为阳极,导电石墨板为阴极;4mol·L-1 H2SO4为阳极电解液,2mol·L-1 VOSO4-2mol·L-1 H2SO4混合溶液为阴极电解液,于1A电解6h。在此条件下进行电化学反应,电解液的电化学活性高,电导率稳定;电解过程实现了较高的电流效率(接近100%)和较低的电能损耗(345Wh·kg-1)。V（Ⅲ）-V（Ⅳ） electrolyte, which is used to prepare vanadium redox cell, was synthesized from VOSO4 by electrolysis. The appropriate electrochemical reaction conditions were as follows： 4 mol · L-1 H2SO4 was anode electrolyte using Ir-Ta/Ti as an anode; 2 mol · L^-1 VOSO4 -2 mol · L^-1 H2SO4 was cathode electrolyte using graphite plank as a cathode. Under the conditions the electrolyte exhibited good electrochemical activity and stable coductivity, and the electrolysis achieved higher current efficiency（ about 100% ） and lower consuming energy（345 Wh · kg^-1 ）.

关 键 词：钒电池 钒电解液 硫酸氧钒 电化学 

分 类 号：O646.5[理学—物理化学]