February 25, 2024

GPCB and private universities conducted competition, A student of technology, A student came 2nd in the competition

Vadodara: Batteries used as fuel in e-vehicles become useless after consumption. This waste will be the biggest challenge in the coming years. Lithium metal is the main metal in this battery. It also contains cobalt, nickel and manganese metals. Up to 95 percent metal recovery by process has been obtained by a student of Faculty of Technology of MS University.

A Master’s student in Environmental Civil Engineering, contributed Rs. 31 thousand spent and Rs. 91 thousand metal was obtained. The project won the second prize of Rs.25 thousand in a competition organized by GPCB and a private university in Rajkot for universities across the country. In this project, 100 E-vehicle waste batteries were brought to zero voltage level in salt water.

followed by sulfuric acid and then acetic acid as a reducing agent. In the 3rd stage, neem leaves, orange peel, aretha and molasses are used for reduction. In the next stage, the metals are gradually released. It takes about 12 hours for this.

A battery contains only 6 percent lithium

In the end, a car’s spent lithium battery contains 15 percent nickel, 8 to 10 percent cobalt, 18 to 20 percent manganese, and 5 to 6 percent lithium, but liquid is also rich in carbon.

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