Battery Containers and Covers

Battery Containers and Covers Points : Battery Containers and Covers The containers for holding the electrode plates and the electrolyte may be made of hard rubber, asphaltic compound, glass, plastic porcelain of lead-lined wood, depending upon the size of the cell and the nature of the service desired.

Hard rubber containers are used for portable cells, i.e., they are likely to be subjected to mechanical shocks while in service, for example, in automobile and aircraft starting, railway-train lighting, etc. Sufficient spacing is kept at the bottom for the accumulation of sediment etc.

Asphaltic compound containers are similar in construction to hard-rubber containers. They are porous and therefore need a coating of an acid-proof paint on the inside to prevent the electrolyte from entering the compound and destroying its mechanical strength.

Glass jar containers are used whenever possible. They help in better inspection and maintenance of the cell. Plastic jars have started replacing glass jars because they are light in weight but generally they are brittle. Small battery containers, as used in motor cycles, are made of PVC.