Evaluation of Precipitation Inhibitors for Supersaturated Vanadyl Electrolytes for the Vanadium Redox Battery
Evaluation of Precipitation Inhibitors for Supersaturated Vanadyl Electrolytes for the Vanadium Redox Battery
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DOI：
10.1149/1.1390754
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发表时间：
1999-03
影响因子：
--
通讯作者：
M. Skyllas-Kazacos;Christina Peng;M. Cheng
中科院分区：
文献类型：
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作者：
M. Skyllas-Kazacos;Christina Peng;M. Cheng
作为一个旨在提高移动应用钒氧化还原电池能量密度的项目的一部分，研究人员评估了一些添加剂作为沉淀抑制剂，以提高过饱和钒电解质的稳定性。虽然硫酸钒酯的饱和溶解度小于，但可以很容易地制备过饱和硫酸钒酯溶液。22天后开始析出硫酸钒酯的空白溶液，80天后达到平衡浓度。然而，在六偏磷酸钠的存在下，80天后没有沉淀的迹象。©1999电化学学会
As part of a project aimed at increasing the energy density of the vanadium redox battery for mobile applications, a number of additives was evaluated as precipitation inhibitors to enhance the stability of supersaturated vanadyl electrolytes in . While the saturation solubility of vanadyl sulfate in is less than at , supersaturated vanadyl sulfate solutions could readily be prepared. A blank solution of vanadyl sulfate in began to precipitate after 22 days at , reaching an equilibrium concentration of after 80 days. In the presence of or sodium hexametaphosphate, however, there was no sign of precipitation after 80 days at . ©1999 The Electrochemical Society