Solid dispersion redox flow battery

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A solid dispersion redox flow battery uses solid particles suspended in a liquid as the energy store. The slurry sits in tanks and is pumped through electrochemical cells during charging or discharging. Unlike traditional redox flow batteries, where materials dissolve in the electrolyte, the active materials stay solid and are just suspended. This approach broadens the materials that can be used, and using lithium-ion battery materials can provide much higher energy density than conventional designs. It’s similar to semi-solid flow batteries, which also use slurries with carbon additives to help conduct electricity. A method called dispersed particle resistance (DPR) was developed to measure how well lithium-ion battery materials perform in this setup.