Chemistry: electrical current producing apparatus – product – and – Process of cell operation – Electrolyte circulation
Patent
1999-11-24
2000-11-28
Nuzzolillo, Maria
Chemistry: electrical current producing apparatus, product, and
Process of cell operation
Electrolyte circulation
429 21, 429 27, 429 38, 429 39, 429 49, 429 81, 429229, 429216, H01M 238
Patent
active
061533289
ABSTRACT:
A System and method is disclosed for preventing dendrite formation in a fuel cell, battery or metal recovery system. Typical metal/air fuel cell stacks comprise a plurality of cells electrically coupled together in a serial fashion. Electrolyte is typically pumped through the cells on a continuous basis using an input and output manifold device having a number of channels equal to the number of cells comprising the stack. This parallel connection causes the formation of metallic dendrites in the channels, which can short circuit the fuel cell stack or battery or metal-recovery apparatus. The system and method provides one or more dendrite elimination zones to prevent the formation of dendrites. The dendrite elimination zones are constructed within each cell or within each manifold to prevent the electrochemical reaction associated with dendrites from taking place. The dendrite elimination zones are characterized by the substantial lack of a metal negative electrode, such as zinc, in the volume of the zone, and the substantial presence of a cell positive electrode through the volume or adjacent to the volume.
REFERENCES:
patent: 3440098 (1969-04-01), Stachurski
patent: 3451851 (1969-06-01), Stanimirovitch
patent: 3639173 (1972-02-01), Stachurski
patent: 3660170 (1972-05-01), Rampel
patent: 3716413 (1973-02-01), Eisner
patent: 3762959 (1973-10-01), McCoy
patent: 3767466 (1973-10-01), McCoy et al.
patent: 3773561 (1973-11-01), Bjorkman
patent: 3923550 (1975-12-01), von Krusentierna
patent: 3930882 (1976-01-01), Ohsawa et al.
patent: 3944430 (1976-03-01), Lee
patent: 3953241 (1976-04-01), Langer et al.
patent: 3970472 (1976-07-01), Steffensen
patent: 4074028 (1978-02-01), Will
patent: 4145482 (1979-03-01), von Benda
patent: 4209577 (1980-06-01), Clash
patent: 4218521 (1980-08-01), Putt et al.
patent: 4415636 (1983-11-01), Charkey
patent: 4479856 (1984-10-01), Ando
patent: 4563403 (1986-01-01), Julian
patent: 4812375 (1989-03-01), Foster
patent: 4842963 (1989-06-01), Ross, Jr.
patent: 4855030 (1989-08-01), Miller
patent: 4857419 (1989-08-01), Jinnai et al.
patent: 5074969 (1991-12-01), Brewer et al.
patent: 5348820 (1994-09-01), Suga et al.
patent: 5366829 (1994-11-01), Saidi
patent: 5382482 (1995-01-01), Suga et al.
patent: 5427872 (1995-06-01), Shen et al.
patent: 5434021 (1995-07-01), Fauteux et al.
patent: 5547778 (1996-08-01), Fauteux et al.
patent: 5780186 (1998-07-01), Casey, Jr.
patent: 5795679 (1998-08-01), Kawakami et al.
patent: 5824434 (1998-10-01), Kawakami et al.
patent: 6086733 (2000-07-01), Carey et al.
Martin Angela J.
Metallic Power, Inc.
Nuzzolillo Maria
LandOfFree
System and method for preventing the formation of dendrites in a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for preventing the formation of dendrites in a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for preventing the formation of dendrites in a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1723285