The main usage of Lithium is manufacturing rechargeable batteries for electronic equipment and gadgets.
it is also used in manufacturing non-rechargeable batteries.
  
It is also used in insecticides, hair dyes and as an anti-knocking additive for petrol. But all these are banned by the government as Lead metal is known for detrimental to health.
  
Industrial Uses
Aerospace Industry, Electrical Industry, Electronic Industry
  
Chemical Industry, Electrical Industry, Electronic Industry