公开(公告)号：US20160093925A1

公开(公告)日：2016-03-31

申请号：US14892586

申请日：2013-05-22

申请人： UNITED TECHOLOGIES CORPORATION

发明人： Weina Li ,  Michael L. Perry

IPC分类号： H01M10/44 ,  H01M10/0563 ,  H02J7/00 ,  H01M8/20 ,  H01M8/18

CPC分类号： H01M10/446 ,  H01M8/188 ,  H01M8/20 ,  H01M10/0563 ,  H01M2300/002 ,  H02J7/00 ,  Y02E60/528

摘要： A method of in-situ electrolyte preparation in a flow battery includes providing a vanadium-based electrolyte solution having vanadium ions of predominantly vanadium V4+ to a first electrode and a second electrode of at least one cell of a flow battery. The vanadium V4+ at the first electrode is converted to vanadium V3+ and the vanadium V4+ at the second electrode is converted to vanadium V5+ by providing electrical energy to the electrodes. A reducing agent is then provided to the vanadium V5+ at the second electrode to reduce the V5+ to vanadium the V4+. The vanadium V3+ at the first electrode is then converted to vanadium V2+ and the vanadium V4+ at the second electrode is then converted to vanadium V5+ by providing electrical energy to the electrodes. A simple method to produce predominantly vanadium V4+ electrolyte from a V5+ source, such as V2O5, is also taught.

摘要翻译： 在流动电池中的原位电解质制备方法包括：将钒钒电解质钒主要为钒的电解质溶液提供给流动电池的第一电极和至少一个电池的第二电极。 第一电极上的钒V4 +被转化为钒V3 +，并且通过向电极提供电能将第二电极处的钒V4 +转化为钒V5 +。 然后将还原剂提供给第二电极上的钒V5 +，以将V5 +还原成钒V4。 然后将第一电极上的钒V3 +转化为钒V2 +，并且通过向电极提供电能将第二电极处的钒V4 +转化为钒V5 +。 还教导了一种从V5 +源（如V2O5）主要生成钒V4 +电解质的简单方法。