公开(公告)号：US20150153421A1

公开(公告)日：2015-06-04

申请号：US14556017

申请日：2014-11-28

Applicant: OCI COMPANY LTD.

Inventor： Min-Ki HONG ,  Byung-Man KANG ,  Soo-Whan KIM ,  byung-Chul KIM ,  Hee-Chang YE

IPC: G01R31/36

CPC classification number: G01R31/3648 ,  G01R31/385 ,  G01R31/396 ,  H01M8/04 ,  H01M8/04194 ,  H01M8/188 ,  Y02E60/528

Abstract: Disclosed are a method and apparatus for analyzing an electrolyte of a redox flow battery. The method includes passing a first electrolyte solution or a second electrolyte solution through each of a first auxiliary cell and a second auxiliary cell connected to a main cell and a storage tank, closing at least one of the first auxiliary cell and the second auxiliary cell, applying current to the first auxiliary cell and the second auxiliary cell; creating data by measuring a voltage between the first auxiliary cell and the second auxiliary cell, and analyzing an electrolyte contained in the electrolyte solution in the first auxiliary cell or the second auxiliary cell based on variation in the voltage between the first auxiliary cell and the second auxiliary cell according to time. According to the present invention, information on an electrolyte can be obtained more efficiently and easily.

Abstract translation: 公开了一种用于分析氧化还原液流电池的电解质的方法和装置。 该方法包括使第一电解质溶液或第二电解质溶液通过连接到主电池和存储箱的第一辅助电池和第二辅助电池中的每一个，闭合第一辅助电池和第二辅助电池中的至少一个， 向第一辅助电池和第二辅助电池施加电流; 通过测量第一辅助电池和第二辅助电池之间的电压来产生数据，并且基于第一辅助电池和第二辅助电池之间的电压的变化来分析包含在第一辅助电池或第二辅助电池中的电解质溶液中的电解质 辅助细胞根据时间。 根据本发明，可以更有效且容易地获得关于电解质的信息。

公开(公告)号：US20170301944A1

公开(公告)日：2017-10-19

申请号：US15508113

申请日：2015-09-03

Applicant: OCI COMPANY LTD.

Inventor： Byung-Man KANG ,  Soo-Whan KIM ,  Min-Ki HONG ,  Byung-Chul KIM

IPC: H01M8/18 ,  H01M4/58

CPC classification number: H01M8/188 ,  H01M4/582 ,  H01M2300/0011 ,  Y02E60/528

Abstract: The present invention relates to a redox flow battery and, more specifically, to a redox flow battery comprising an anolyte, a catholyte, and an ion exchange membrane, wherein the anolyte and the catholyte respectively comprise an electrolyte containing a Cl− ion and an active material containing a vanadium ion, and the electrolyte comprises at least one side reaction inhibitor selected from the group consisting of a metal phosphate, a metal hydrochloride and a metal sulfate.

公开(公告)号：US20170346114A1

公开(公告)日：2017-11-30

申请号：US15535619

申请日：2015-12-16

Applicant: OCI COMPANY LTD.

Inventor： Min-Ki HONG ,  Eun-Sun OH ,  Hee-Chang YE ,  Byung-Chul KIM ,  Soo-Whan KIM

IPC: H01M8/04276 ,  H01M8/18 ,  H01M8/04537

CPC classification number: H01M8/04276 ,  H01M8/04611 ,  H01M8/0482 ,  H01M8/188 ,  Y02E60/528

Abstract: According to one embodiment of the present invention, the method for controlling the pump speed of a redox flow battery for transferring an electrolyte stored in an electrolyte tank to a cell stack comprises the steps of: measuring the input power and/or the output power of the redox flow battery; measuring the charging power and/or the discharging power of the redox flow battery; calculating the power loss of the redox flow battery by using the difference between the input power and the charging power, or the difference between the output power and the discharging power; and adjusting the pump speed according to the power loss.

公开(公告)号：US20150017556A1

公开(公告)日：2015-01-15

申请号：US14328409

申请日：2014-07-10

Applicant: OCI COMPANY LTD.

Inventor： Ok-Seon KIM ,  Min-Ki HONG ,  Soo-Whan KIM ,  Byung-Chul KIM

IPC: H01M8/04 ,  H01M8/18

CPC classification number: H01M8/04694 ,  H01M8/04313 ,  H01M8/184 ,  H01M8/188 ,  Y02E60/528

Abstract: Disclosed are a redox flow battery system and a control method for the same. In the redox flow battery system, an oxidation number is controlled by injecting at least one of an oxidant and a reducer into at least one of a cathode side and an anode side using a measured oxidation number of the electrolyte. Therefore, even though an oxidation number balance is inevitably broken, since an initial concentration of vanadium ion, that is, an average oxidation number is maintained without a large change in the concentration, efficiency and stability of a battery may be promoted, and the oxidation number balance may be monitored in real time and the oxidation number balance may be recovered without a separate process of separating electrolytes to entirely mixing the electrolytes, or the like, that is, without stopping a function of the battery, thereby facilitating maintenance and control of performance of the battery.

Abstract translation: 公开了一种氧化还原液流电池系统及其控制方法。 在氧化还原液流电池系统中，使用测定的电解质的氧化数，将氧化剂和还原剂中的至少一种注入至阴极侧和阳极侧的至少一方来控制氧化数。 因此，即使氧化数平衡不可避免地被破坏，由于维持初始浓度的钒离子，即平均氧化数而不会发生大的浓度变化，因此可以促进电池的效率和稳定性，氧化 可以实时监测数量平衡，并且可以在不分离电解质以完全混合电解质等的方法的情况下回收氧化数量平衡，即不停止电池的功能，从而便于维护和控制 电池的性能。