Abstract
The storage battery has already had the history of more than 100 years up to now. Electric cars, with power storage cells as their energies, are considered as a green project in the 21st century, whose appearance has led the automobile industry into a brand-new domain. At present, three parts of the core assemblies, including the electric motors, controllers and bodyworks, have been mature both in the theory and the technology, but other two major ones such as storage cells and chargers cannot satisfy the requirement of electric cars. Especially, there are some theoretical and technical problems to solve, which has become the bottleneck to the development of electric transportation vehicles.
Since lead-acid battery being published, as a result of each kind of engineering factor limit, has used the charge method has not been able to comply with the battery internal physical chemistry rule, makes the entire charging-up to have the serious surcharge and to analyze was mad and so on the phenomena, the charge efficiency is low. The electric car also differs from with the power accumulator cell and the common accumulator cell, it discharges continually by the long time medium electric current primarily, once in a while by the big electric current electric discharge, uses in starting, the acceleration or the hill climbing. Generally speaking, the electric car works with the accumulator cell in the depth charging and discharging active status. Therefore, proposed to the electric car with the power accumulator cell charge is different in the conventional battery request, it must affect small as well as the fill electricity judgment accurate characteristic to the accumulator cell service life.
This article introduces the charging system of the plumbous-acid power battery. The charging system is a charging method that can change the system along with the change of battery capacity. The system in this article can realize this charging method by combining several simple electric circuits but includes no complex components, saving the production cost and having an important practical value.
Key words：Plumbous acid power battery，Charge system，Switch power
