Rechargeable lithium air batteries could save a lot of weight, if only they could be made to work. Now MIT has proved another hopeful additive is flawed, although the understanding developed could help in the search for others. Like zinc-air non-rechargeables, the idea is to replace one energy-containing electrode material with oxygen, which is breathed ...
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from Electronics Weekly https://www.electronicsweekly.com/news/research-news/dont-hold-breath-lithium-air-cells-2017-08/
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