Method for preparing non-aqueous electrolytes

Details Method for preparing non-aqueous electrolytes Method for preparing non-aqueous electrolytes

1989-02-27

1989-11-14

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429198, H01M 614

Patent

active

048807141

ABSTRACT:
This invention relates to an improved method for preparing a non-aqueous electrolyte comprising lithium hexafluorophosphate, LiPF.sub.6, and electrochemical cells containing same. In particular the method involves forming LiPF.sub.6 by a chemical reaction in the presence of an ether, whereby a complex of LiPF.sub.6 and the ether is formed and readily isolated. An electrolyte is prepared by dissolving the complex in non-aqueous solvents to the desired concentration.

REFERENCES:
patent: 3607020 (1971-09-01), Smith, Jr.
patent: 4176214 (1979-11-01), Klinedinst et al.
patent: 4321314 (1982-03-01), Bowden et al.
patent: 4345010 (1982-08-01), Glugla
patent: 4770959 (1988-09-01), Koyama et al.

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