All-inorganic solvents for electrolytes

This invention describes a special liquid for lithium-ion batteries that helps them store and release energy. Instead of typical flammable organic liquids, it uses a mix of inorganic phosphorus-nitrogen compounds, specifically a phosphoranimine and a cyclic phosphazene, along with a lithium salt. This unique liquid is designed to stay fluid below freezing temperatures and be safer by not easily catching fire.

Why it matters: Since 2020, the continuous pursuit of higher energy density in lithium-ion batteries has amplified the need for inherently safer, non-flammable electrolytes. Advances in inorganic synthesis or material characterization since filing may now better support the development of these specialized compounds.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedChemical synthesis, battery integration, specialized lab equipment.

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