Chemistry: electrical current producing apparatus – product – and – Preserving cell in storage feature
Patent
1991-03-27
1993-06-15
Langel, Wayne
Chemistry: electrical current producing apparatus, product, and
Preserving cell in storage feature
206204, 206333, 429 49, 429 57, 429126, 429204, H01M 604
Patent
active
052196763
ABSTRACT:
The present invention provides a method for maintaining the specific gravity of acid in a lead-acid battery within a predetermined range to prevent undesirable plate degradation and gassing during storage. Extended shelf-life is accomplished by employing a battery which is formed to the desired voltage and which is stored in a damp condition with the electrolyte maintained in a range which, in the most preferred embodiment, is between about 1.015 and 1.320. A desiccant, for example a gelled sulfuric acid desiccant, is placed in the battery housing, out of contact with the plates, to absorb the water vapor which is generated by the self-discharge reactions. The amount of desiccant is selected so that all the water vapor formed during such reactions is removed to maintain the specific gravity of the electrolyte in said range. Extended shelf-life results, and the desiccant can be used to form the battery electrolyte at the time it is desired to place the battery in service.
REFERENCES:
patent: 3067275 (1962-12-01), Solomon
patent: 3530002 (1970-09-01), Little
patent: 3556860 (1971-01-01), Amlie
patent: 3586539 (1971-06-01), Lauck
patent: 3591422 (1971-07-01), Bernholtz et al.
patent: 3652341 (1972-03-01), Halsall et al.
patent: 3776779 (1973-12-01), Johnson
patent: 3928066 (1975-12-01), Lewenstein
patent: 3930881 (1976-01-01), Cestaro et al.
patent: 3948680 (1976-04-01), Mao et al.
patent: 3988165 (1976-10-01), Mao et al.
patent: 4098961 (1978-07-01), Sabatino
patent: 4200683 (1980-04-01), Bant
patent: 4414302 (1983-11-01), Jache et al.
patent: 4448860 (1984-05-01), Von Alpen et al.
patent: 4629622 (1986-12-01), Yonezu et al.
patent: 4863816 (1989-09-01), Misra et al.
patent: 5035966 (1991-07-01), Tokunaga et al.
patent: 5114806 (1992-05-01), Chiacchio et al.
patent: 5116697 (1992-05-01), Fleischmann et al.
Storage Batteries, G. Vinal, Sc.D., 4th Ed., p. 41 (date unavailable).
Lead-Acid Batteries, H. Bode, pp. 277-279 (date unavailable).
Journal of the Electrochemical Society, vol. 129, No. 7, Bullock, et al., pp. 1393-1398 (Jul. 1982).
Bullock Norma K.
Symanski James S.
Globe-Union Inc.
Langel Wayne
LandOfFree
Extended shelf-life battery does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Extended shelf-life battery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extended shelf-life battery will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1041494