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Anode-less lithium ion battery could last twice as long

Hmmm

Solid Energy Systems is developing “Anode-less” battery designs with ultra-thin metal anode improves the cell-level energy density by 50% compared to graphite anodes and 30% compared to silicon-composite anodes.

It would be a new kind of lithium-ion battery that could let portable electronics such as smartphones and smart watches last twice as long between charges

via Next Big Future: Anode-less lithium ion battery could last twice as long at 1200 Wh per liter.

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