摘要 |
An electrolyte solution for use in rechargeable electrochemical cells having nickel substrate as working electrode and lithium counter electrode and an electrochemically active amount of LiAsF6 dissolved in dimethyl sulfite and a rechargeability improving amount of lithium carbonate, Li2CO3, contained therein to form electrolyte solution, said solution being capable of passing through a molecular sieve of less than about 5 Angstroms has been developed. A preferred embodiment includes a one molar solution of the LiAsF6 and from about 0.07 to 0.14 molar solution of Li2CO3. The electrolyte solution has 85-90 percent efficiency for cycling lithium on nickel substrate. |