An electric vehicle battery startup backed by Bill Gates and Volkswagen is claiming a major breakthrough on a technology that it says could power the next generation of clean cars and make them as widely attractive to drivers as gas vehicles — though some experts caution that bringing its innovation to market could be an even greater challenge.
The startup, San Jose, Calif.-based QuantumScape, has spent the last decade developing its version of a “solid state” battery, an alternative to lithium-ion batteries that researchers have long seen as promising.
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