Dow Global Technolgoies LLC

Jeremy R Stajdl

David R Wilson

William Jack Kruper, Jr

Ravi B Shankar

Deidre A Strand

Peter M Margl

Houxiang Tang

Andrew J Pasztor, Jr

Thomas D Gregory

Jing Jin

Matthew Martin Yonkey

Jamie L Cohen

Mark D Newsham

A battery electrolyte solution contains from 0.001 to 20% by weight of certain phosphorus-sulfur compounds. The phosphorus-sulfur compound performs effectively as a solid-electrolyte interphase (SEI) forming material. The phosphorus-sulfur compound has little adverse impact on the electrical properties of the battery, and in some cases actually improves battery performance. Batteries containing the electrolyte solution form robust and stable SEIs even when charged at high rates during initial formation cycles.

Battery electrolyte solutions containing phosphorus-sulfur compounds

A battery electrolyte solution contains from 0.01 to 80% by weight of an aromatic phosphorus compound. The aromatic phosphorus compound provides increased thermal stability for the electrolyte, helping to reduce thermal degradation, thermal runaway reactions and the possibility of burning. The aromatic phosphorus compound has little adverse impact on the electrical properties of the battery, and in some cases actually improves battery performance.

Battery electrolyte solutions containing aromatic phosphorus compounds

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Jeremy R Stajdl