Method to blend separator powders

Details Method to blend separator powders Method to blend separator powders

2007-12-04

2007-12-04

Johnson, Edward M. (Department: 1754)

Chemistry: physical processes

Physical processes

Crystallization

Reexamination Certificate

active

10246609

ABSTRACT:
A method for making a blended powder mixture, whereby two or more powders are mixed in a container with a liquid selected from nitrogen or short-chain alcohols, where at least one of the powders has an angle of repose greater than approximately 50 degrees. The method is useful in preparing blended powders of Li halides and MgO for use in the preparation of thermal battery separators.

REFERENCES:
patent: 4421579 (1983-12-01), Covitch et al.
patent: 4518718 (1985-05-01), Frost
patent: 4981535 (1991-01-01), Hadermann et al.
patent: 5110565 (1992-05-01), Weimer et al.
patent: 6063855 (2000-05-01), Pecsok et al.

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