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LIGHTWEIGHT CARBON FOAM THAT CAN REPLACE LEAD BATTERIES

Why in news?

CSIR-Advanced Materials and Processes Research Institute, Bhopal is developing porous carbon materials which have the potential to replace lead grid in lead-acid batteries.

Details:

  • There are some serious concerns regarding Li-ion batteries, such as safety risk, limited resource supply, high cost, and lack of recycling infrastructure.
  • This necessitates the development of an alternative battery system with lower environmental concerns, economic and higher energy density.
    As a result, lead-acid batteries are still one of the most reliable, economical, and environmentally friendly options.
  • However, electrodes in the lead-acid batteries suffer from the problem of heavyweight, corrosion, poor thermal stability, and diffusion of electrolytes in one dimension, which ultimately affects the output power.
  • Scientists have developed lightweight carbon foam with a density of less than 0.3g/cc, high porosity of over 85%, good mechanical strength.
  • The carbon foam developed  will also be cost-effective for the removal of arsenic, oil, and other metals from contaminated water. These carbon foams are non-toxic, easy to fabricate, affordable, and insoluble in water.
  • The raw material for the fabrication of carbon foam is easily available everywhere, and there is no requirement of any costly equipment for the fabrication of carbon foam and filtration. Such materials can be safely used in remote areas where power supply is scarce.

Related Article: Lithium-ion batteries

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October 2022
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