Context:
Researchers from CSIR-CMERI, Durgapur synthesised a cathode material which can be used as catalyst in Metal-air batteries.
Relevance:
Facts for Prelims
Metal-Air Batteries:
- Metal-air batteries function through electrochemical reactions between an “Air Electrode” (cathode) and a “Metal Electrode” (anode). Common metals used for the anode include lithium, zinc, aluminum, iron, and sodium, paired with a porous carbon material and a catalyst at the cathode.
Advantages:
- Higher Energy Density: These batteries offer greater energy density compared to traditional lithium-ion batteries.
- Accessibility: Utilizing metals that are readily available in India enhances accessibility and dependence on local resources.
- Cost-Effectiveness: Local production minimizes the need for imports, thus reducing costs.
- Eco-Friendly: Metal-air batteries are recyclable, posing fewer environmental hazards than their lithium-ion counterparts.
- Lightweight: The use of lightweight metals like aluminum allows these batteries to provide high energy density, making them especially suitable for various applications.
Applications:
- Large-Scale Energy Storage: Ideal for stationary applications where large amounts of energy storage are required.
- Transportation: Can be used in electric vehicles due to their high energy efficiency and lighter weight.
- Renewable Energy Systems: Suitable for storing energy generated from renewable sources, aiding in managing supply and demand fluctuations.
