Which of the following is used in automobile battery casings?
The purpose of a battery casing is for enclosing and hermetically sealing a battery body which converts chemical energy into electrical energy in order to generate current to power an electronic device.
Battery casing is manufactured in layers. The casing layers are developed from various raw materials and can include one or two, for example, polyethylene terephthalate layers, a polymer layer, and a polypropylene layer.
Among the given option the correct answer is B.