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 …
This story continues at Samsung makes 520Wh per kg battery
Or just read more coverage at Electronics Weekly