Electrochemical systems incorporationg in situ spectroscopic determination of state of charge
A state-of-charge, electrochemical technology, applied in the field of electrochemical systems, can solve the problem that the probe output is easy to fluctuate with time and damage the accuracy of the state of charge measurement.
Inactive Publication Date: 2017-09-08
LOCKHEED MARTIN ADVANCED ENERGY STORAGE
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However, the probe output is prone to float over time and thus may compromise the accuracy of the SOC measurement
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[0017] The present disclosure relates, in part, to an electrochemical system, such as a flow battery, in which state of charge and other battery parameters can be measured in situ. The present disclosure also relates in part to a method of measuring state of charge and other battery parameters in situ within an electrochemical system such as a flow battery.
[0018] The present disclosure can be understood more readily by reference to the following description taken in conjunction with the accompanying drawings and examples, all of which form a part of this disclosure. It should be understood that this disclosure is not limited to the specific products, methods, conditions or parameters described and / or illustrated herein. Further, the terminology used herein is for the purpose of describing particular embodiments by way of example only and is not intended to be limiting unless otherwise stated. Similarly, it should be appreciated that where this disclosure describes a batter...
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Abstract
State of charge determination within electrochemical systems, such as flow batteries, can often be difficult to measure, particularly in an in situ manner. Methods for assaying the condition of an electrochemical system can include: interacting electromagnetic radiation with a first electrolyte solution at a location within the electrochemical system, the electromagnetic radiation being delivered through an optical material configured to exhibit attenuated total reflectance at an interface between the optical material and the first electrolyte solution; receiving at a detector electromagnetic radiation that has interacted with the first electrolyte solution via one or more attenuated total reflectances within the optical material; and measuring an absorbance of at least one of an oxidized form or a reduced form of a first coordination compound within the first electrolyte solution via the electromagnetic radiation that is received at the detector.
Description
[0001] Cross References to Related Applications [0002] This application claims the benefit of priority from US Provisional Patent Application No. 62 / 088,856, filed December 8, 2014, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates generally to energy storage, and more particularly, to flow batteries and associated electrochemical systems for energy storage. Background technique [0004] Electrochemical energy storage systems such as batteries, supercapacitors, etc. have been widely implemented for large-scale energy storage applications. Various battery designs, including flow batteries, have been employed for this purpose. Compared with other types of electrochemical energy storage systems, flow batteries can be advantageous, especially for large-scale application. Alternatively, flow batteries can be thought of as separating power output and energy storage from each other. As used herein, the terms "ac...
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IPC IPC(8): G01N27/30G01N21/55G01N21/35
CPCG01N21/552G01N21/8507H01M8/04477H01M8/188H01M8/04604G01R31/382Y02E60/50
Inventor 约瑟夫·约翰内斯·亨里克斯·皮哲思
Owner LOCKHEED MARTIN ADVANCED ENERGY STORAGE