发明名称 |
REDOX FLOW BATTERY SYSTEM AND METHOD FOR OPERATING REDOX FLOW BATTERY |
摘要 |
Provided are a redox flow battery system and a method for operating a redox flow battery that suppress overcharge and overdischarge of an electrolyte.;A redox flow battery system includes a pump that supplies an electrolyte to a battery cell by circulation, a pump controller that controls a flow rate of the pump, and a measurement unit that measures at least two parameters selected from among an inlet-side state of charge of the electrolyte supplied to the battery cell, an outlet-side state of charge of the electrolyte drained from the battery cell, and a charge/discharge current input to/output from the battery cell. The pump controller includes a pump flow-rate computation unit that calculates a charge/discharge efficiency of the battery cell from the parameters measured by the measurement unit and, based on the charge/discharge efficiency, determines the flow rate of the pump so that the electrolyte drained from the battery cell is neither overcharged nor overdischarged. The pump controller also includes a pump flow-rate instruction unit that sets in the pump the flow rate determined by the pump flow-rate computation unit. |
申请公布号 |
US2017012307(A1) |
申请公布日期 |
2017.01.12 |
申请号 |
US201515119341 |
申请日期 |
2015.02.09 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
Kumamoto Takahiro;Yamanishi Katsuya;Fujikawa Kazuhiro |
分类号 |
H01M8/04276;H01M8/04746;H01M8/04537;H01M8/20;H01M8/18 |
主分类号 |
H01M8/04276 |
代理机构 |
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代理人 |
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主权项 |
1. A redox flow battery system comprising:
a battery cell; an electrolyte tank; circulation piping through which an electrolyte is supplied from the electrolyte tank to the battery cell by circulation; and a pump that causes the electrolyte to circulate through the circulation piping, wherein the redox flow battery system further includes a pump controller that controls a flow rate of the pump, and a measurement unit that measures at least two parameters selected from among an inlet-side state of charge of the electrolyte supplied to the battery cell, an outlet-side state of charge of the electrolyte drained from the battery cell, and a charge/discharge current input to/output from the battery cell, wherein the pump controller includes
a pump flow-rate computation unit that calculates a charge/discharge efficiency of the battery cell from the at least two parameters measured by the measurement unit and, based on the charge/discharge efficiency, determines the flow rate of the pump so that the electrolyte drained from the battery cell is neither overcharged nor overdischarged, anda pump flow-rate instruction unit that sets in the pump the flow rate determined by the pump flow-rate computation unit. |
地址 |
Osaka-shi JP |