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Pressure balancing of electrolytes in redox flow batteries

A technology of flow battery and electrolyte, applied in fuel cells, secondary batteries, indirect fuel cells, etc., can solve problems such as reducing battery capacity

Inactive Publication Date: 2015-07-01
ENERVAULT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unbalance reduces the capacity of the battery and is undesirable

Method used

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  • Pressure balancing of electrolytes in redox flow batteries
  • Pressure balancing of electrolytes in redox flow batteries
  • Pressure balancing of electrolytes in redox flow batteries

Examples

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Embodiment Construction

[0029] Various embodiments may be described in detail with reference to the accompanying drawings. References made to particular examples and implementations are for purposes of illustration, and are not intended to limit the scope of the invention or the claims.

[0030] As used herein, the term "about" or "approximately" for any numerical value or range indicates an element that allows a collection of parts or components to function for its intended purpose as described herein. Suitable for temperature or dimensional tolerances.

[0031] Embodiments discussed herein provide energy storage systems suitable for use in reduction / oxidation (redox) flow battery systems or redox flow batteries (RFB) suitable for storing and delivering electrical energy under a variety of conditions System, device and method in. Examples of such redox flow battery systems are shown and described in co-pending US patent application Ser. No. 12 / 498,103, filed July 6, 2009. Embodiments described he...

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Abstract

Methods and apparatuses are disclosed for mitigating electrolyte migration in a redox flow battery system. A first parameter of a first electrolyte in a first flow path of a redox flow battery cell block may be measured. The first flow path may have an inlet to and an outlet from the redox flow battery cell block. A second parameter of a second electrolyte in a second flow path of the redox flow battery cell block may be measured. The second flow path may have an inlet to and an outlet from the redox flow battery cell block. The first parameter may be detected to be greater than the second parameter. A first device coupled to the redox flow battery cell block in the second flow path may be operated to increase the second parameter in the second flow path.

Description

[0001] Related applications [0002] This application claims the benefit of priority to US Provisional Patent Application No. 61 / 692,347, filed August 23, 2012, which is hereby incorporated by reference in its entirety. [0003] Statement of Federally Funded Research [0004] The inventions contained in this patent application are covered under DE-OE0000225 "Recovery Act-Flow Battery Solutions for Smart Grid Renewable Energy Applications" awarded by the U.S. Department of Energy (DOE). Battery Solution For Smart Grid Renewable Energy Applications)” with the support of the government. The government has certain rights in these inventions. technical field [0005] The present application relates generally to redox flow battery systems, and more particularly to systems and methods for balancing pressure and / or flow rates in individual electrolyte streams in redox flow battery systems. Background technique [0006] A flow battery is an electrochemical energy storage system i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/38H01M2/36H01M10/38
CPCH01M8/20Y02E60/528H01M8/188Y02E60/50Y02P70/50
Inventor R·莫索S·杜赖拉伊J·沙J·梅耶斯
Owner ENERVAULT CORP