V_2(SO_4)_3的制备及其在固体钒电池中的应用  

Preparation of V_2(SO_4)_3 and its Application in Vanadium-Solid Battery

作　　者：向小绢 吴雄伟[1,2] 邓奇[1] 刘俊[1] 刘灿明[1] 

机构地区：[1]湖南农业大学理学院,湖南长沙410128 [2]湖南银峰新能源有限公司,湖南长沙410205

出　　处：《广州化学》2014年第3期17-22,共6页Guangzhou Chemistry

摘　　要：以V2O5为原料,利用电解还原方法制备三价钒电解液,此电解液蒸发结晶后得到的V2(SO4)3固体,可组装成固体钒电池。固体钒电池在5 mA/cm2时电池的能量效率可达94.00%,比液流钒电池高出6%;其能量密度为54.18 Wh/kg,是液流钒电池的两倍。充放电实验结果表明,所制备V2(SO4)3固体电化学活性高,所用固体钒电池有望应用于移动电源和动力汽车。Via electrolytic reduction, trivalent vanadium electrolyte was prepared using V2Os as raw material. This electrolyte was turned into solid V2（5O4）3 which was used to vanadium-solid battery activity species by evaporating and crystallizing. Compared to VRFB, vanadium-solid battery＇s energy efficiency （current density 5 mA/cm2, EE 94.00%） was higher 6%, energy density twice as much to it. Charge-Discharge test indicated that solid of V2（SO4）3 had high electrochemical activity and SVRB may be applied to mobile power and motor vehicle.

关 键 词：钒液流电池 电解液 固体钒电池 

分 类 号：O645[理学—物理化学]