公开(公告)号：US20170054172A1

公开(公告)日：2017-02-23

申请号：US15119908

申请日：2015-02-16

Applicant: OCI COMPANY LTD.

Inventor： Ji-Eun HONG ,  Seung-Yoen LEE ,  Soo-Whan KIM ,  Hee-Chang YE ,  Byung-Chul KIM

IPC: H01M8/18 ,  H01M8/02 ,  H01M8/20

CPC classification number: H01M8/188 ,  H01M8/02 ,  H01M8/20 ,  Y02E60/528

Abstract: The present invention relates to a redox flow battery, and more particularly, to a redox flow battery which is charged and discharged by supplying a positive electrolyte and a negative electrolyte to a battery cell using an active material containing vanadium and a cation exchange membrane, in which the positive electrolyte and the negative electrolyte contain vanadium ions as active ions, the difference in volume between the positive electrolyte and the negative electrolyte is maintained at 10% or less, and the total concentration of anions in the negative electrolyte is higher than the total concentration of anions in the positive electrolyte, whereby the transfer of water in the battery is controlled and a change in the volume of the electrolytes is minimized.

Abstract translation: 本发明涉及一种氧化还原液流电池，更具体地说，涉及通过使用含有钒和阳离子交换膜的活性物质向电池单体供给正电解质和负电解质而进行充放电的氧化还原液流电池， 正电解质和负电解质含有钒离子作为活性离子，正电解质和负电解质之间的体积差保持在10％以下，负电解质中阴离子的总浓度高于总电解质 正电解液中阴离子的浓度被控制，从而电池中的水的转移受到控制，并且电解质的体积变化被最小化。