“If an electrode swells too much during cycling, then it can’t conduct electrons very well, and you lose all the performance,” she said. The electrolyte is key to ion conduction and energy storage through its interactions with the electrode. The cathodes and anodes are polymers that can store energy, and the electrolyte is water mixed with organic salts. If we have this alternative battery, we can turn to this chemistry, where the supply is much more stable because we can manufacture them here in the United States and materials to make them are here.”Īqueous batteries consist of a cathode, electrolyte and an anode. In the future, if materials shortages are projected, the price of lithium-ion batteries will go way up. Lutkenhaus explained, “There would be no battery fires anymore because it’s water-based. This safer chemistry would also prevent battery fires. The group’s goal of researching metal-free batteries stems from having better control over the domestic supply chain since cobalt and lithium are only outsourced internationally. Water based or aqueous batteries are different from lithium-ion batteries that contain cobalt. Daniel Tabor have published their findings about lithium-free batteries in Nature Materials. Jodie Lutkenhaus and chemistry assistant professor Dr. Texas A&M University chemical engineers have discovered a 1,000% difference in the storage capacity of metal-free, water-based battery electrodes.Ĭhemical engineering professor Dr.
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