Method of recovering useful materials from spent secondary batte

Details Method of recovering useful materials from spent secondary batte Method of recovering useful materials from spent secondary batte

1996-09-16

1998-08-18

Nuzzolillo, M.

Chemistry: electrical current producing apparatus, product, and

Regenerating, salvage or repair feature other than only...

H01M 1054

Patent

active

057956731

ABSTRACT:
A method of recovering useful materials from spent secondary batteries for electric vehicles according to the present invention involves a step of cutting a spent secondary battery for electric vehicles into a cover portion and a housing portion, a step of taking out and separating electrode plates from the housing portion, and a step of crushing the electrode plates and dividing the crushed materials into negative electrode substrate, positive electrode plates including a nickel compound and active materials, and separators through the use of pneumatically separating and sieving.

REFERENCES:
patent: 5429887 (1995-07-01), Lyman et al.
patent: 5456992 (1995-10-01), Elliott
patent: 5478664 (1995-12-01), Kaneko et al.
patent: 5491037 (1996-02-01), Kawakami

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