发明名称 |
Rebalancing electrolytes in redox flow battery systems |
摘要 |
Embodiments of redox flow battery rebalancing systems include a system for reacting an unbalanced flow battery electrolyte with a rebalance electrolyte in a first reaction cell. In some embodiments, the rebalance electrolyte may contain ferrous iron (Fe2+) which may be oxidized to ferric iron (Fe3+) in the first reaction cell. The reducing ability of the rebalance reactant may be restored in a second rebalance cell that is configured to reduce the ferric iron in the rebalance electrolyte back into ferrous iron through a reaction with metallic iron. |
申请公布号 |
US8916281(B2) |
申请公布日期 |
2014.12.23 |
申请号 |
US201213433189 |
申请日期 |
2012.03.28 |
申请人 |
Enervault Corporation |
发明人 |
Chang On Kok;Pham Ai Quoc |
分类号 |
H01M4/36;H01M4/48;H01M6/20;H01M10/42;H01M8/18 |
主分类号 |
H01M4/36 |
代理机构 |
The Marbury Law Group, PLLC |
代理人 |
The Marbury Law Group, PLLC |
主权项 |
1. A flow battery system comprising: a first rebalance reaction cell comprising: a first liquid half-cell chamber in fluid communication with a first source of a positive liquid electrolyte, a second liquid half-cell chamber in fluid communication with a second source of a liquid mediator electrolyte comprising dissolved ferrous iron (Fe2+) ions, and a separator membrane between the first half-cell chamber and the second half-cell chamber; a second rebalance reaction cell comprising a replenishable source of metallic iron and in fluid communication with the second source of liquid mediator electrolyte; and a flow battery reaction cell coupled to the first rebalance reaction cell, the flow battery reaction cell comprising: a first liquid filled half-cell chamber of the flow battery reaction cell in fluid communication with the first source of positive liquid electrolyte and the first liquid filled half-cell chamber of the first rebalance reaction cell; and a second liquid filled half-cell chamber of the flow battery reaction cell in fluid communication with a source of negative liquid electrolyte, wherein the source of negative electrolyte is separate from the second source of liquid mediator electrolyte and the second rebalance reaction cell. |
地址 |
Sunnyvale CA US |