![]() Solid State BatteriesĪqueous batteries, though the most effective and popular options to date, are not perfect devices. If scaled, these batteries would eliminate the need for lithium, increase safety, and reduce the cost of battery technology by a significant margin. Their proof-of-concept is rechargeable for hundreds of cycles and has a high discharge capacity when compared to other multivalent battery technologies like zinc and aluminum-based batteries of the same nature. Professor Leung’s team successfully proved the functionality of this aqueous magnesium battery, opening up new avenues for its commercialization. Furthermore, the adsorption of chloride ions on the anode’s surface reacts with any oxidized magnesium, re-exposing the bare metal so the redox reaction can continue. In their research, Professor Leung’s team created a chloride-based supersaturated electrolyte where the salt (solute) outweighs the solvent (water) which restricts the availability of free water from passivating the magnesium anode. ![]() That is until researchers under Professor Dennis Leung from the Department of Mechanical Engineering at the University of Hong Kong (HKU) created a novel “water-in-salt” aqueous electrolyte battery that regulates this passivation layer when using a magnesium anode. In simpler terms, magnesium forms a protective inert oxide layer on its surface whenever it gets the chance, making its use as a reactive battery anode nearly impossible. The main issue with this metal is its affinity for moisture and passivation when in aqueous settings. If it were not for a few key issues, magnesium metal would be an ideal candidate to replace lithium 一 it is the eighth most common element, non-toxic, has a negative electrochemical potential, and has a high capacity thanks to its additional valence electron. Magnesite, one of the most common ores of magnesium ![]() Find out how these new technologies aim at upending the $46.4 billion global lithium-ion battery market with cheaper, more effective, and less environmentally harmful alternatives. Ranging from seawater batteries to those made from a nanomaterial that’s 100 times stronger than steel, here are seven exciting innovations in battery technology. As a result of this demand, numerous lithium battery alternatives are in development that could shift the power balance for energy storage 一 given they are feasible, and more importantly, scalable. However, the advent of renewable energy equipment, electric vehicles, and the issues surrounding lithium extraction and safety are forcing markets to find batteries independent of the alkali metal. Their capacity, rechargeability, and price make them ideal for both consumer and industrial applications. Lithium-ion batteries currently dominate energy storage technology 一 and for good reason. Sign up here to get the day’s top stories delivered straight to your inbox. Welcome to Thomas Insights - every day, we publish the latest news and analysis to keep our readers up to date on what’s happening in industry.
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