lead battery

Abstract

In a liquid lead-acid storage battery that performs short-term intermittent charging and high-efficiency discharge to the load in a partially charged state, a positive electrode plate with a utilization rate of the positive electrode active material set in the range of 50 to 65% and carbon added to the negative electrode active material are used. A negative electrode plate that improves charge acceptance performance and life performance by using a high-quality conductive material and bisphenol-aminobenzenesulfonic acid-formaldehyde condensate, and uses a non-woven fabric formed of a material selected from glass, pulp, and polyolefin as a separator. The separator on the surface facing the negative electrode plate can further improve the charge acceptance performance and life characteristics at PSOC than conventional batteries.

Description

technical field [0001] The invention relates to a liquid lead storage battery with electrolyte solution freed from pole plate groups and separators in the cell. Background technique [0002] Lead storage batteries are characterized by low cost and high reliability, so they are used as power sources for starting automobiles or power sources for electric vehicles such as golf carts, especially for industrial equipment such as uninterruptible power supply devices. The power supply is widely used. [0003] In recent years, in order to prevent air pollution and global warming in automobiles, various measures to increase the mileage per liter of fuel have been studied. As a car that implements measures to increase the number of kilometers traveled per liter of fuel, an idling stop (Idling stop, hereinafter referred to as an ISS car) and a control system that reduces the operating time of the engine by stopping the engine when stopping walking without unnecessary idling have been ...

AI Technical Summary

Problems solved by technology

Therefore, even if lignin is added to the negative electrode active material, the effect of suppressing performance degradation caused by repeated charging and discharging cannot be sustained for a long period of time.

In addition, lignin is adsorbed to lead ions eluted from lead sulfate during charging, which reduces the reactivity of lead ions, thereby hindering the charging reaction of the negative electrode active material and inhibiting the charge acceptance performance.

Therefore, although the addition of lignin to the negative electrode active material can improve the discharge characteristics, there is a problem that it hinders the improvement of the charge acceptance performance.

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