Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent
1993-08-10
1994-07-12
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
429 66, 429 53, H01M 212, H01M 1206
Patent
active
053287789
ABSTRACT:
This invention provides a prismatic zinc-air cell including, in general, a prismatic container having therein an air cathode, a separator and a zinc anode. The container has one or more oxygen access openings, and the air cathode is disposed in the container in gaseous communication with the oxygen access openings so as to allow access of oxygen to the cathode. The separator has a first side in electrolytic communication with the air cathode and a second side in electrolytic communication with the zinc anode. The separator isolates the cathode and the zinc anode from direct electrical contact and allows passage of electrolyte therebetween. An expansion chamber adjacent to the zinc anode is provided which accommodates expansion of the zinc anode during discharge of the cell. A suitable collapsible foam member generally occupies the expansion space, providing sufficient resistance tending to oppose movement of the zinc anode away from the separator while collapsing upon expansion of the zinc anode during discharge of the cell. One or more vent openings disposed in the container are in gaseous communication with the expansion space, functioning to satisfactorily minimize the pressure buildup within the container by venting gasses expelled as the foam collapses during cell discharge.
REFERENCES:
patent: 2620368 (1952-12-01), Ruben
patent: 2629758 (1953-02-01), Ruben
patent: 2650945 (1953-09-01), Herbert
patent: 2723301 (1955-11-01), West, Jr. et al.
patent: 2729694 (1956-01-01), Ellis
patent: 2816154 (1957-12-01), Mendelsohn
patent: 2938064 (1960-05-01), Kordesch
patent: 2960558 (1960-11-01), Marsal et al.
patent: 3042733 (1962-07-01), Toda et al.
patent: 3124487 (1964-03-01), Duddy et al.
patent: 3177096 (1965-04-01), Jache
patent: 3479387 (1970-02-01), Amiet
patent: 3519485 (1970-07-01), Chassoux et al.
patent: 3598655 (1971-08-01), Hamlen et al.
patent: 3630785 (1971-12-01), Whitestone et al.
patent: 3682706 (1972-08-01), Yardney et al.
patent: 3716413 (1973-02-01), Eisner
patent: 3765942 (1973-10-01), Jache
patent: 3847669 (1974-11-01), Paterniti
patent: 3855000 (1974-12-01), Jammet
patent: 3871920 (1975-03-01), Gerbier et al.
patent: 3881959 (1975-05-01), Tsuchida et al.
patent: 3884721 (1975-05-01), Tucholski
patent: 3897267 (1975-07-01), Tseung et al.
patent: 3905834 (1975-09-01), Harada et al.
patent: 3918990 (1975-11-01), Enters
patent: 3922178 (1975-11-01), Winger
patent: 3961985 (1976-06-01), Takamura et al.
patent: 4009320 (1977-02-01), Gerbier
patent: 4041211 (1977-08-01), Wiacek
patent: 4054726 (1977-10-01), Sauer et al.
patent: 4135039 (1979-01-01), Jenkins
patent: 4145482 (1979-03-01), von Benda
patent: 4172924 (1979-10-01), Warszawski
patent: 4211830 (1980-07-01), Chevet
patent: 4214044 (1980-07-01), Chevet et al.
patent: 4220690 (1980-09-01), Blurton et al.
patent: 4224736 (1980-09-01), Feldhake
patent: 4246324 (1981-01-01), de Nora et al.
patent: 4248944 (1981-02-01), Smilanich
patent: 4282293 (1981-08-01), van Lier
patent: 4303743 (1981-12-01), Reau
patent: 4303748 (1981-12-01), Reau
patent: 4333993 (1982-06-01), Gibbard
patent: 4341847 (1982-07-01), Sammells
patent: 4343869 (1982-08-01), Oltman et al.
patent: 4389466 (1983-06-01), Joy
patent: 4404266 (1983-09-01), Smilanich
patent: 4464446 (1984-08-01), Berger et al.
patent: 4491625 (1985-01-01), Sarbacher et al.
patent: 4551399 (1985-11-01), Despic
patent: 4557983 (1985-12-01), Sauer
patent: 4565749 (1986-01-01), van Ommering et al.
patent: 4585710 (1986-04-01), McEvoy
patent: 4591539 (1986-05-01), Oltman et al.
patent: 4595643 (1986-06-01), Koshiba et al.
patent: 4608325 (1986-08-01), Ismail
patent: 4614696 (1986-09-01), Ito et al.
patent: 4640874 (1987-02-01), Kelm
patent: 4687714 (1987-08-01), Oltman et al.
patent: 4725515 (1988-02-01), Jurca
patent: 4740435 (1988-04-01), Markin et al.
patent: 4797190 (1989-01-01), Peck
patent: 4838422 (1989-06-01), Gregerson
patent: 4842963 (1989-06-01), Ross, Jr.
patent: 4894295 (1990-01-01), Cheiky
patent: 4894300 (1990-01-01), Kugler
patent: 4939048 (1990-07-01), Vignaud
patent: 4957826 (1990-09-01), Cheiky
patent: 4965147 (1990-10-01), Mas et al.
patent: 4988581 (1991-01-01), Wycliffe
patent: 5114806 (1992-05-01), Chiacchio et al.
patent: 5176966 (1993-01-01), Epp et al.
McLarnon et al., "The Secondary Alkaline Zinc Electrode," J. Electrochem Soc., 138:2, pp. 645-664 (1991).
Merck Index, p. 302 (11th Ed.).
Kirk-Othmer, "Encyclopedia of Chemical Technology, " vol. 3, pp. 402, 503-639, 663-670 (3rd Ed.).
Putt Ronald A.
Woodruff Glenn
Matsi, Inc.
Skapars Anthony
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