Scientists have developed a biologically-inspired membrane that could quintuple the charge capacity of electric car batteries, thereby massively increasing their range. They will be used to fix fundamental issues with a next-generation battery type, known as lithium-sulfur. Until now, this type of battery’s cycle life – the number of times it can be charged and discharged – has been insufficient for commercial use in electric vehicles, despite their capacity benefits. Lithium-sulfur batteries are capable of holding up to five times as much charge as the industry standard lithium-ion batteries, which are used in everything from smartphones and laptops to pacemakers. However, the inherent instability of the cathodes of lithium-sulfur batteries, which undergo a 78 per cent change in size each charge cycle, mean they are wildly impractical for use in consumer electronics. How practical will this be ?
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