Non-aqueous electrolyte solutions and non-aqueous electrolyte cells comprising the same

  • US Patent No. 6939647
  • Issued: September 06, 2005
  • Status: Expired

Non-aqueous electrolyte solutions capable of protecting lithium metal and lithium-inserted carbonaceous electrodes include an electrolyte salt, preferably LiPF6, and a non-aqueous electrolyte solvent mixture comprising at least one of trialkyl phosphites, one or more cyclic or/and linear carbonates, and optionally other additives, such as, gelling agents, ionically conductive solid polymers, and other additives. The trialkyl phosphites have the following general formula:

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