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Composite membranes for flow batteries

A technology of flow battery and electrolyte, applied in fuel cells, battery electrodes, indirect fuel cells, etc., can solve problems such as porosity differences

Active Publication Date: 2018-12-21
CASE WESTERN RESERVE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To the point where the pores may become physically blocked, even with such control components, the resulting local differences in porosity present further challenges

Method used

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  • Composite membranes for flow batteries
  • Composite membranes for flow batteries
  • Composite membranes for flow batteries

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Embodiment Construction

[0068] Reference will now be made to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. It is to be understood that other embodiments may be utilized and structural and functional changes may be made. Furthermore, features of various embodiments may be combined or changed. Accordingly, the following description is presented by way of illustration only and should not limit in any way the various alterations and modifications that may be made to the illustrated embodiments. In this disclosure, numerous specific details are provided to provide a thorough understanding of the subject disclosure. It should be appreciated that aspects of the present disclosure may be practiced with other embodiments that do not necessarily include all aspects described herein, among other things.

[0069] As used herein, the words "example" and "exemplary" mean an example or illustration. The word "example" or "exemplary" does not indicate a critical or pre...

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Abstract

A composite membrane for use in flow batteries is contemplated. The membrane comprises a hydrogel, such as poly(vinyl alcohol), applied to a polymeric microporous film substrate. This composite is interposed between two half cells of a flow battery. The resulting membrane and system, as well as corresponding methods for making the membrane and making and operating the system itself, provide unexpectedly good performance at a significant cost advantage over currently known systems.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Patent Application 62 / 300,323, filed February 26, 2016. technical field [0003] This disclosure was developed with funds received under contract (Contract DAR0000352) with the US Department of Energy, which may have certain rights in the invention. [0004] The present invention relates to the field of flow batteries, and more particularly, to systems and devices for composite membranes used in such batteries, and methods of making and using any of them. Background technique [0005] A flow battery is a rechargeable battery that uses an electrolyte to move ("flow") through an electrochemical cell to convert chemical energy from the electrolyte into electricity (and vice versa while charging). Active materials used in flow batteries typically consist of ionized metal salts or redox-active organic compounds dissolved in a fluid, such as water or one or more organic solvents. Addi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/18H01M8/20H01M10/05
CPCH01M8/188H01B1/122Y02E60/50H01M8/0239H01M8/0241H01M2300/0002H01M2300/0085H01M4/8657H01M2300/0091
Inventor 杰西·S·温赖特加里·E·韦奈克伊诺克·A·纳格里罗伯特·萨维内尔
Owner CASE WESTERN RESERVE UNIV