Electrolytes for low impedance, wide operating temperature range lithium-ion battery module

This invention describes a lithium-ion battery cell that uses a special liquid electrolyte to improve its performance across a wide temperature range. The electrolyte consists of a specific blend of solvents, a lithium salt, and two additives, LiDFOB and VC. The claims narrow this down to a very precise recipe, specifying the exact chemicals like ethylene carbonate, ethyl methyl carbonate, dimethyl carbonate, methyl butyrate, and lithium hexafluorophosphate, along with their specific ratios and concentrations.

Why it matters: Filed before manufacturing processes for complex battery electrolytes became more refined. The increasing demand for batteries with stable performance across extreme temperatures makes this formulation more relevant today.

Status: ExpiredProtection ended and was never renewed
How hard to build: SpecializedPrecision chemical formulation, battery assembly, specific materials.

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