Their time has come
A new type of electrical cell may displace the lithium-ion design
BATTERIES are notoriously hard to improve. Nowhere was this more apparent than at the opening last week, on July 29th, of Tesla’s Gigafactory, a massive battery plant in Nevada. According to its boss Elon Musk, Tesla built the factory because wringing more efficiency out of batteries is far more difficult than optimising the process by which they are made.
This article appeared in the Science & technology section of the print edition under the headline “Their time has come”
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