Lead-acid Batteries By Gravita Metal Inc.

We are the famous Exporter, Manufacturer and Supplier of Lead-Acid Batteries in Kathua, Jammu and Kashmir, India. The biggest use of Lead worldwide is for the Lead-acid battery. The commonest type of Lead-acid battery consists of a heavy duty plastic box containing Lead alloy pasted grids. The grids are made from a Lead-antimony together with minor additions of elements such as copper, arsenic, tin and selenium. These are added to confer properties such as grain refinement, fluidity and age-hardening characteristics to the grids. For the new generation of sealed, maintenance free batteries a range of Lead calcium-(tin) alloys is used. These contain up to 0.1% calcium and from zero to 0.5% tin. The tin-containing alloys are used in the positive grids to protect against corrosion. A rechargeable cell is known as a secondary cell and provides a means of storing electricity. Lead is particularly well suited for this application because of its conductivity and its resistance to corrosion. The addition of antimony or calcium gives the Lead an increased hardness to resist the mechanical stresses within the battery caused, for example, by the natural vibration of road vehicles and by the chemical reactions taking place.