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Patent Searching and Data


Title:
MANUFACTURE OF ENCLOSED TYPE LEAD STORAGE BATTERY
Document Type and Number:
Japanese Patent JPS61248359
Kind Code:
A
Abstract:

PURPOSE: To increase initial charge capacity for obtaining battery performance stably even if the battery is preserved for a long time at high-temperature condition by performing initial charge with electric current more than 0.025CA after supplying an amount of electrolytic solution into the battery excessively in comparison with the quantity of the liquid which can be well absorbed in a positive, a negative plates and a retainer, and thereafter, discharging the battery with low-electric current prior to initial charging process.

CONSTITUTION: An amount of electrolytic solution excessive in comparison with the quantity of the liquid to be absorbed in a positive, a negative plate and a retainer, is supplied into a battery and the battery is discharged with low-electric current, so that much quantity of small crystallized PbSO4 is formed in the plate pores to retain sulfuric acid in the form of PbSO4. And further, the battery is charged with electric current more than 0.025CA, which is enough power to build up electric potential of the negative plate instead of high-electric current, to transform PbSO4 into PbO2 and at the same time, to retain much quantity of H2SO4 in the plate. PbO2 being produced during this period is formed in large crystal because the battery is charged with low-electric current, so that the porosity of the positive plate increases. And, since the battery is charged continuously until the free liquid is used up, the activity of the negative plate increases in parallel with gassing.


Inventors:
Saito, Shinji
Miura, Asahiko
Hayakawa, Takumi
Matsubayashi, Satoshi
Komaki, Akio
Application Number:
JP1985000088252
Publication Date:
November 05, 1986
Filing Date:
April 24, 1985
Export Citation:
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Assignee:
SHIN KOBE ELECTRIC MACH CO LTD
International Classes:
H01M4/22; H01M10/12; (IPC1-7): H01M4/22; H01M10/12