{
  "$type": "site.standard.document",
  "description": "A lithium-ion battery electrolyte is disclosed that enables reversible lithiation and delithiation from +50° C. down to −80° C. The electrolyte is a dual-solvent system of 1,3-dioxolane and butyronitrile formulated to balance donor strength and desolvation energy, creating a…",
  "path": "/patents/1382741",
  "publishedAt": "2026-05-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0569",
    "Energy Battery Tech, Inc."
  ],
  "textContent": "A lithium-ion battery electrolyte is disclosed that enables reversible lithiation and delithiation from +50° C. down to −80° C. The electrolyte is a dual-solvent system of 1,3-dioxolane and butyronitrile formulated to balance donor strength and desolvation energy, creating a solvent-separated-ion-pair-rich solvation shell with very low Litransport activation energy. This tailored solvation promotes formation of a thin, mechanically elastic solid-electrolyte/inter-electrolyte interphase containing LiF, LiN, and polymeric ether domains derived from the solvents and additive salts. The resulting interphase provides high ionic conductivity and chemical robustness while minimizing impedance growth. Electrochemical testing demonstrates stable cycling for over 50 cycles at temperatures from −80° C. to +50° C. with high coulombic efficiency. The invention establishes a coupled solvation-interphase design principle that decouples ionic mobility from interfacial stability, enabling reliable cryogenic operation and providing a predictive framework for next-generation low-temperature lithium-ion battery electrolytes.",
  "title": "ELECTROLYTE COMPOSITION FOR A LITHIUM-ION BATTERY"
}