Most major automakers - with the exception of Tesla (TSLA.O) - have disclosed development efforts or partnerships. Toyota did not disclose cost estimates for its new solid-state battery EV or the additional investment it would have to make to ramp up production. That has made solid-state batteries far more expensive than liquid lithium-ion batteries. They are also expensive to fabricate and prone to cracking. It is hard to design a solid electrolyte that is stable and chemically inert and yet is still a good conductor of ions between the electrodes. WHY IS IT DIFFICULT TO MANUFACTURE SOLID STATE BATTERIES?Īutomakers and technology companies have produced solid-state battery cells for EVs in prototype, but have been unable so far to scale to mass production. The electrolyte in liquid lithium-ion batteries is volatile and flammable at high temperatures, meaning there is a risk of fire or chemical leaks. By comparison, the Tesla Supercharger network, the largest of its kind, offers the equivalent of 321 km of charge in 15 minutes. Toyota said it expects its solid-state battery would have a charging time of 10 minutes or less. Solid-state batteries have also been promoted as a way to reduce charging time. Solid-state batteries can hold more energy than liquid lithium-ion batteries, a gain that would potentially speed the transition to EVs by addressing a consumer concern: range.Ī Reuters poll in March found 35% of Americans surveyed wanted EVs with ranges of 500 miles or more (804 km or more), a distance few currently offer. They have been called "the grail" of battery development and "the kiss of death" for combustion-engine offerings because of their power and the driving range possible on a single charge. WHAT ARE THE ADVANTAGES OF SOLID-STATE BATTERIES?
Toyota said it has overcome an issue with the durability of solid-state batteries that would pave the way for production, which it expects to begin in 2027-2028. Mass-market production of the batteries for EVs has been slower to develop. Solid-state batteries have been used in small electronic devices such as pacemakers and smart watches. The lithium-ion (li-ion) batteries widely in use, by contrast, use liquid electrolytes. Solid-state batteries use thin layers of solid electrolytes that carry lithium ions between electrodes. On the date of publication, Ian Cooper did not have (either directly or indirectly) any positions in the securities mentioned. The opinions expressed in this article are those of the writer, subject to the Publishing Guidelines.TOKYO/SINGAPORE, June 13 (Reuters) - Toyota Motor (7203.T) has said it is moving toward production of solid-state batteries for the next generation of electric vehicles (EVs), bringing a technology that promises more energy storage and faster charging closer to market. We want to get the cost down by 50%, to double the energy density and to offer three times the charging speed.” If the company is able to pull that off they could become a major contender in the EV market. The company also noted that its solid-state technology was truly solid, removing all liquid elements.ĭavid Moss, Nissan’s senior vice president for research and development in Europe, did an interview with Autocar where he said “We think we have something quite special and are in a group leading the technology.
Even more exciting, the company works with scientists and the University of Oxford to develop the technology. It then wants to have completed engineering on the technology by 2026 and potential mass production by 2028. By 2025, Nissan (OTCMKTS: NSANY) plans to have a pilot solid-state battery plant up and running.
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