Fireproof, lightweight solid electrolyte for safer lithium-ion batteries

Lithium-ion batteries are in everything from cell phones to cars. However, recent incidents involving fires or explosions of these devices show there's a need for safer batteries. One option is to replace the flammable liquid electrolyte with a solid-state electrolyte (SSE). But some of the most-studied SSEs are themselves flammable, leaving the original safety concern unaddressed. Researchers now report in ACS' Nano Letters that they have developed an SSE that won't burn up.

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