We are keen on sharing our passion and knowledge on chemical power sources.
In this section you will find some general information related to energy storage.
Battery energy storage consists in conversion of chemical energy into electric energy due to chemical reactions of active substances that are included therein. That is why batteries belong to chemical power sources.
A set of active substances and electrolyte constitute the basis of chemical power sources. A cell consists of negative and positive plates immersed in an electrolyte. The whole set is contained in a closed case.
The cell functions as a constant current power source. Depending on the type of chemical reaction, you can distinguish:
Primary or secondary cells have many shapes and parameters. The marking system simplify their identification.
Until October 1990, according to the Polish battery shape marking system the cells had been divided into 3 groups:
After changes in regulation in October 1999, the system divides cells into 2 groups of shapes:
Moreover, the most popular cylindrical batteries and cells are marked by capital letters, i.e.:
See what happens if you overcharge your Li-ion battery.