Samsung has created a lithium-air battery with a capacity of 520-watt hours per kilogram of battery weight, reports the Nikkei. The capacity was enabled by thinning the separator to 20 microns – less than 10% the thinness of previous models – allowing the use of more cells. The problems are that it takes several hours ...
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from Electronics Weekly https://www.electronicsweekly.com/news/business/samsung-makes-520wh-per-kg-battery-2017-11/
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