Scientists say new material can triple lithium-ion battery energy density

Utility Dive: Cathodes present a bottleneck when it comes to improving the density of li-ion batteries.

Compared with a li-ion battery's conventional graphite anode, cathodes are limited. A conventional graphite cathode, in a process known as intercalation, can only transfer a single electron. But compounds like iron trifluoride can transfer multiple electrons.

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