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More work needs to be done to overcome the performance limitations associated with the EV's on-board rechargeable lithium-ion battery. A report in Power Electronics Technology gives an overview of research into new electrolytes and rechargeable chemistries that may lead to batteries with improved capacity. Technology Review details a semi-solid flow battery combining the energy density of solid cells with the scalability of flow batteries. Slurries of high-energy-density lithium storage compounds and nanoscale conductor particles are pumped through the device. The result may be cheaper electric vehicle batteries providing energy densities an order of magnitude greater than available options. Another article with video describes the next-generation lithium-ion battery design philosophy pursued by Ann Arbor, MI-based Sakti3. Company founder Ann Marie Sastry explains how lightweight solid state batteries are being developed with reduced parasitic mass that undermines energy density. With these and other research projects ongoing, how strong are the near-term prospects for cheaper, high-performing EV energy sources?
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