India’s planetary missions like Mars Mission may soon be able to reduce payload mass and launch costs with the help of an indigenously developed Metal- CO2 battery with CO2 as an Energy Carrier.
Try this PYQ:
Q.Hydrogen fuel cell vehicles produce one of the following as “exhaust”:
(a) NH3
(b) CH4
(c) H2O
(d) H2O2
Metal CO2 Battery
- An IIT professor recently demonstrated the technical feasibility of Lithium- CO2 battery in simulated Mars atmosphere for the first time.
- The development of Metal-CO2 batteries will provide highly specific energy density with the reduction in mass and volume, which will reduce payload mass and launch cost of planetary missions.
- Metal-CO2 batteries have a great potential to offer significantly high energy density than the currently used Li-ion batteries.
- They provide a useful solution to fix CO2 emissions, which is better than energy-intensive traditional CO2 fixation methods.
It’s working
- A primary Li-CO2 battery uses pure carbon dioxide as a cathode.
- According to chemical knowledge, Lithium metal can react with CO2 to form lithium oxalate at room temperature.
- While at high temperatures, lithium oxalate decomposes to form lithium carbonate and carbon monoxide gas.
