Super-Fast Charging Sodium-Ion Batteries (SIBs)

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News: A research team at the Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) has developed a super-fast charging sodium-ion battery (SIB).

About Super-Fast Charging Sodium-Ion Batteries (SIBs)

Source – DST
  • The battery is based on a NASICON-type cathode and anode material that can charge up to 80% in just six minutes and last over 3000 charge cycles.
  • Innovations involved: This new battery uses a clever mix of chemistry and nanotechnology.
    • The team engineered a novel material for the anodeNa₁.₀V₀.₂₅Al₀.₂₅Nb₁.₅(PO₄)₃—and optimized it in three critical ways
      • shrinking the particles to nanoscale
      • wrapping them in a thin carbon coat
      • improving the anode material by adding a small amount of aluminium
  • These tweaks made sodium ions move faster and more safely, enabling both speed and durability.

Advantages of Sodium-Ion Batteries (SIBs)

  • Sodium is cheap and abundantly available in India, unlike lithium which is scarce and largely imported.
  • A battery built on sodium instead of lithium could help the country to become self-reliant in energy storage technology.

Sodium Ion Battery

  • The sodium-ion battery (NIB or SIB) is a type of rechargeable battery that uses sodium ions (Na+) as its charge carriers.
  • They have a similar design to their lithium-ion counterparts and can be manufactured using related methods.
  • Both battery types generate electricity through a chemical reaction and are made up of an anode, cathode, separator and an electrolyte.
  • But in a sodium-ion battery, lithium ions are replaced with sodium ions in the battery’s cathode, and lithium salts swapped for sodium salts in the electrolyte.
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