Recharging of zinc batteries

Details Recharging of zinc batteries Recharging of zinc batteries

1994-10-12

1996-10-29

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

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

241201, 241270, H01M 1054

Patent

active

055695558

ABSTRACT:
The invention provides a process for removing discharged active zinc-containing material from a mechanically rechargeable zinc battery anode, containing the same, the anode being of the type comprising a skeletal frame, including conductive metal and having a portion of a surface area thereof formed as open spaces, and an active zinc anode component compacted into a rigid static bed of active anode material encompassing the skeletal frame, and having two opposite major surfaces, the process comprising introducing the anode between a pair of spaced-apart first and second crusher plates, each of the crusher plates being provided with a plurality of pointed projections of varying heights and a plurality of recesses of varying depths, the crusher plates being aligned with each other to the effect that tips of projections of the first crusher plate substantially mutually occlude with recesses provided on the second crusher plate and tips of projections of the second crusher plate substantially mutually occlude with recesses provided on the first surface; abruptly reducing the space between adjacent crusher plates said anode bed; moving said crusher plates away from said deformed anode bed and then displacing said deformed bed, along at least a first axis, by at least half the distance between adjacent projection tips of at least one of said crusher plates; again abruptly reducing the space between adjacent crusher plates; and repeating the last two steps until the fragmentation of the bed and the dislodgement of the resulting fragmented particles from the skeletal frame are achieved.

REFERENCES:
patent: 2204024 (1940-06-01), Meinhart
patent: 2314414 (1943-03-01), Meinhart
patent: 4694996 (1987-09-01), Siegel
patent: 5318861 (1994-06-01), Harats et al.
patent: 5360680 (1994-11-01), Goldman et al.
patent: 5405713 (1995-04-01), Pecherer et al.
W. Gerhartz, "Ullmann's Encyclopedia of Industrial Chemistry", Oct. 29, 1990, pp. 5-15 to 5-17.

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