An elongate, generally tubular, air depolarized electrochemical cell (10) comprising a cathode (14), including an air cathode assembly (26), extending about the tubular circumference, and along the tubular length, of the cell (10), an anode (12), a separator (16) between the anode (12) and the catho
An elongate, generally tubular, air depolarized electrochemical cell (10) comprising a cathode (14), including an air cathode assembly (26), extending about the tubular circumference, and along the tubular length, of the cell (10), an anode (12), a separator (16) between the anode (12) and the cathode (14), electrolyte, a top closure member (177, 200), and a bottom closure member (114, 202). The cathode assembly (26) is fixedly held, by a friction fit, in a slot (116) at the bottom of the cell. The slot can be developed, for example, by inner (110) and outer (114) walls of a cathode can (28), by inner (226) and outer (224) walls of a bottom closure member (202), or by an outer wall (114) of a cathode can (28) and an opposing outer wall of a plug (128) on the interior of the cell. Preferably, bottom closure structure of the cell (10) and receives a bottom edge portion (44) of the cathode current collector (32), and makes electrical contact with the bottom edge portion (44), preferably at an inner surface (60) of the cathode current collector. A diffusion member (36) of the cathode assembly (26) is preferably compressed as a seal, at the bottom of the cell (10), between an outer side wall (39) of the cell and the remainder of the cathode assembly (26). The diffusion member (36) is also used at least as an assist in sealing the cell (10) against electrolyte leakage from the anode cavity (137) and past the cathode assembly (26). Various embodiments comprehend crimping the outer side wall against the cathode assembly and thereby developing a crimping bias in the outer side wall which holds the cathode assembly in the slot, by friction, between the outer and inner side walls.
대표청구항▼
[Having thus described the invention, what is claimed is:] [1.](a) a cathode, including an air cathode assembly extending along the length of said cell;(b) an anode, including electroactive anode material disposed inwardly, in said cell, of said cathode assembly;(c) a separator between said anode an
[Having thus described the invention, what is claimed is:] [1.](a) a cathode, including an air cathode assembly extending along the length of said cell;(b) an anode, including electroactive anode material disposed inwardly, in said cell, of said cathode assembly;(c) a separator between said anode and said cathode assembly;(d) electrolyte dispersed in said anode, said cathode, and said separator;(e) a top closure member closing the top of said cell; and(f) a bottom closure member closing the bottom of said cell, said bottom closure member having an outer side wall, a lowest extremity of said bottom closure member, and an inner side wall extending upwardly from said lowest extremity such that the lowest extremity is disposed between the inner side wall and the outer side wall, the inner and outer side walls, in combination, defining a slot therebetween wherein said inner and outer side walls are opposite each other and oppose each other on opposing sides of the slot, said outer side wall applying a crimping bias directed transverse to the length of said cell and against a surface of said cathode assembly and thereby against the inner side wall, and correspondingly developing a friction fit holding said cathode assembly in the slot between said outer and inner side walls.
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이 특허에 인용된 특허 (53)
Gibbard Henry F. (Schaumburg IL), Air cathode for air depolarized cells.
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Stone Gordon R. (O\Fallon IL) McGee Richard L. (Chesterfield MO) Amick Douglas J. (Ann Arbor MI), Metal-air cell and power system using metal-air cells.
Passaniti Joseph L. (Madison WI) Dopp Robert B. (Madison WI), Method of making air cathode material having catalytically active manganese compounds of valance state +2.
Vu, Viet H.; Cheeseman, Paul G.; Syvertsen, Marc L.; Thompson, John A.; Pedicini, Christopher S.; Witzigreuter, John D., Air manager for metal-air cells.
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