James Dyson, the billionaire British inventor of the bagless vacuum cleaner, said on Tuesday his company was working on developing an electric car to be launched by 2020.

Dyson said he was spending £2 billion (about ¥302 billion) to exploit his namesake company's expertise in solid-state battery technology and electric motors to be found in his innovative vacuum cleaners and other products like bladeless fans and air purifiers.

"Battery technology is very important to Dyson, electric motors are very important to Dyson, environmental control is very important to us," Dyson, 71, said at his company's flagship shop on London's Oxford Street.