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A solid dispersion redox flow battery is a type of redox flow battery using dispersed solid active materials as the
A solid dispersion redox flow battery is a type of redox flow battery using dispersed solid active materials as the energy storage
Energy storage is the capture of energy produced at one time for use at a later time to reduce imbalances between energy demand and energy production. A device that stores energy is generally called an Accumulator (energy), accumulator or Batte ...
media. The solid suspensions are stored in energy storage tanks and pumped through electrochemical cells while charging or discharging. In comparison with a conventional redox flow battery where active species are dissolved in aqueous or organic electrolyte
An electrolyte is a substance that conducts electricity through the movement of ions, but not through the movement of electrons. This includes most soluble Salt (chemistry), salts, acids, and Base (chemistry), bases, dissolved in a polar solven ...
, the active materials in a solid dispersion redox flow battery maintain the solid form and are suspended in the electrolyte
An electrolyte is a substance that conducts electricity through the movement of ions, but not through the movement of electrons. This includes most soluble Salt (chemistry), salts, acids, and Base (chemistry), bases, dissolved in a polar solven ...
. Further development expanded the applicable active materials. The solid active materials, especially with active materials from lithium-ion battery
A lithium-ion or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li+ ions into electronically conducting solids to store energy. Li-ion batteries are characterized by higher specific energy, energ ...
, can help the suspensions achieve much higher energy densities
In physics, energy density is the quotient between the amount of energy stored in a given system or contained in a given region of space and the volume of the system or region considered. Often only the ''useful'' or extractable energy is measure ...
than conventional redox flow batteries. This concept is similar to semi-solid flow batteries in which slurries of active materials accompanied by conductive carbon additives to facilitate electrons conducting are stored in energy storage tanks and pumped through the electrochemical reaction cells. Based upon this technique, an analytical method was developed to measure the electrochemical performance of lithium-ion battery active materials, named dispersed particle resistance Dispersed particle resistance (DPR) is a measured parameter to characterize battery active materials. It is seen as an indicator of lithium-ion battery active material rate capability. It is the slope of voltage-current linear fit for active mate ...
(DPR).{{cite journal, date=2018-08-10, title=Electrochemical characterization of lithium cobalt oxide within aqueous flow suspensions as an indicator of rate capability in lithium-ion battery electrodes, journal=Electrochimica Acta, volume=281, pages=822–830, doi=10.1016/j.electacta.2018.06.037, issn=0013-4686, last1=Geng, first1=Linxiao, last2=Denecke, first2=Matthew E., last3=Foley, first3=Sonia B., last4=Dong, first4=Hongxu, last5=Qi, first5=Zhaoxiang, last6=Koenig, first6=Gary M., s2cid=103962594
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