Lithium ion conducting electrolytes

Details Lithium ion conducting electrolytes Lithium ion conducting electrolytes

1992-06-22

1996-04-09

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429191, 429192, H01M 618, H01M 614

Patent

active

055060730

ABSTRACT:
A liquid, predominantly lithium-conducting, ionic electrolyte having exceptionally high conductivity at temperatures of 100.degree. C. or lower, including room temperature, and comprising the lithium salts selected from the group consisting of the thiocyanate, iodide, bromide, chloride, perchlorate, acetate, tetrafluoroborate, perfluoromethane sulfonate, perfluoromethane sulfonamide, tetrahaloaluminate, and heptahaloaluminate salts of lithium, with or without a magnesium-salt selected from the group consisting of the perchlorate and acetate salts of magnesium. Certain of the latter embodiments may also contain molecular additives from the group of acetonitrile (CH.sub.3 CN) succinnonitrile (CH.sub.2 CN).sub.2, and tetraglyme (CH.sub.3 --O--CH.sub.2 --CH.sub.2 --O--).sub.2 (or like solvents) solvated to a Mg.sup.+2 cation to lower the freezing point of the electrolyte below room temperature. Other particularly useful embodiments contain up to about 40, but preferably not more than about 25, mol percent of a long chain polyether polymer dissolved in the lithium salts to provide an elastic or rubbery solid electrolyte of high ambient temperature conductivity and exceptional 100.degree. C. conductivity. Another embodiment contains up to about but not more than 10 mol percent of a molecular solvent such as acetone.

REFERENCES:
patent: 3445290 (1969-05-01), Elliott et al.
patent: 3615828 (1971-10-01), Fischer
patent: 4234667 (1980-11-01), Bennion
patent: 4367269 (1983-01-01), Nagai et al.

Affiliated with

Also associated with

Rating

Lithium ion conducting electrolytes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lithium ion conducting electrolytes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lithium ion conducting electrolytes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-137935