A customs duty or due is the indirect tax levied on the import or export of goods in international trade. In economic sense, a duty is also a kind of consumption tax.A duty levied on goods being imported is referred to as an import duty.Similarly, a duty levied on exports is called an export duty.A tariff, which is actually a list of commodities along with the leviable rate (amount) of customs duty, is popularly referred to as a customs duty. customs duty or due is the indirect tax levied on the import or export of goods in international trade. In economic sense, a duty is also a kind of consumption tax.
1 A variety of substances are used in lithium batteries, but a common combination is a lithium cobalt oxide cathode and a carbon anode. 2  Lead-acid battery (rechargeable) : This is the chemistry used in a typical car battery. Zinc-carbon battery: The zinc-carbon chemistry is common in many inexpensive AAA, AA, C and D dry cell batteries. 2  The anode is zinc, the cathode is manganese dioxide, and the electrolyte is ammonium chloride or zinc chloride. 3  Alkaline battery: This chemistry is also common in AA, C and D dry cell batteries.
Acid batteries include Lead car batteries where sulphuric acid reacts with lead to produce lead suphate and water. Alkali chemistries include Nickel Cadmium and Lithium Polymers-these involve metals that are high in the reactivity series and react with water to form compounds such as Lithium Manganese Dioxide.