The Chatterjee Group Weighs Move into Commercial Production of Sodium-Ion Batteries.

The Chatterjee Group is exploring the possibility of entering commercial production of indigenous sodium-ion batteries, with a focus on manufacturing battery cells, the core component of the technology.

The move follows a significant breakthrough by scientists at the Research Institute for Sustainable Energy (RISE) under TCG-CREST, an institution established by the Purnendu Chatterjee-led Group. Researchers there have recently developed a high-speed charging sodium-ion (Na-ion) battery using entirely India-sourced materials.

The newly developed battery can charge up to 94 per cent in just five minutes and delivers an energy density of around 180 watt-hour per kg, placing it on par with leading lithium-iron phosphate (LFP) batteries currently in the market.