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A leading global automaker has revealed intentions to mass-produce a battery type for electric vehicles (EVs) designed to endure significantly longer and recharge considerably faster than current options.
On October 8, Toyota, together with Sumitomo Metal Mining Company, headquartered in Japan, unveiled a joint venture for the large-scale production of cathode materials intended for solid-state batteries, which will be implemented in the automaker’s electric EVs.
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Collectively, the firms “intend to realize the globe’s initial viable application of all-solid-state batteries ” within battery-powered EVs, as per the released statement.
A standard lithium-ion battery incorporates a liquid electrolyte contained between two solid electrodes. The proposed solid-state battery would substitute this liquid electrolyte with a solid counterpart.
Given the flammable nature of the liquid electrolyte utilized in lithium-ion batteries, a shift to solid-state batteries brings forth a decreased risk of fire. Furthermore, solid-state batteries demonstrate potential for increased energy density relative to lithium-ion counterparts, implying enhanced vehicle range using a similarly sized battery.
Toyota and Sumitomo Metal Mining have engaged in cooperative research regarding solid-state battery materials since 2021. In furthering the progress toward solid-state batteries for electric vehicles, the joint efforts have yielded what they define as a “remarkably durable cathode material,” intended as one electrode component within future solid-state batteries. Neither company has disclosed precise details pertaining to this innovative cathode material.
Sumitomo Metal Mining intends to begin supplying this cathode material to manufacturing entities commencing in 2028, according to a company representative who spoke to Reuters.
“We will initially focus on supplying Toyota, before adjusting flexibly to meet market demands,” the spokesperson specified.
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Beyond Toyota, vehicle manufacturers including Honda, Nissan, BMW, and Volkswagen are concurrently developing proprietary solid-state batteries, either independently or via partnerships with external organizations. A number are targeting the introduction of electric vehicles powered by solid-state batteries within the upcoming years, according to reports from Inside EVs.
Honda has previously stated intentions to commence production of solid-state batteries for EVs, providing a range potential of 620 miles (1,000 kilometers) on a single charge by 2030. This would effectively more than double the achievable range of top-performing EVs presently available.
ProLogium, a manufacturer specializing in ceramic batteries, also unveiled a solid-state battery prototype last year, demonstrating the capacity to charge from 5% to 60% within a span of only five minutes.
Skyler WareSocial Links NavigationLive Science Contributor
Skyler Ware is a self-employed science writer covering the realms of chemistry, biology, paleontology and Earth sciences. She participated as a 2023 AAAS Mass Media Science and Engineering Fellow at Science News. Her contributions have also been published in Science News Explores, ZME Science and Chembites, amongst other outlets. Skyler holds a Ph.D. in the field of chemistry from Caltech.
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