Hindustan Zinc, JNCASR develop zinc-ion battery prototypes for grid storage

Hindustan Zinc Limited, in collaboration with the Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), has developed stable zinc-ion battery pouch cell prototypes aimed at large-scale renewable energy storage. The development marks progress in India’s indigenous research on alternative energy storage technologies.

The collaboration focuses on addressing key technical challenges in zinc-ion batteries, including optimisation of electrode and electrolyte materials to improve cycle life and energy density. According to the partners, newly developed low-cost electrolyte formulations have enhanced stability, enabling the prototypes to perform reliably under realistic operating conditions such as solar energy capture and discharge profiles.

Zinc-ion batteries are being positioned as a potential option for stationary energy storage due to the abundance and low cost of zinc. While their performance metrics remain below those of lithium-ion batteries, the technology offers advantages including high safety, non-flammable aqueous electrolytes, and lower material costs. These attributes are considered relevant for large-scale and long-duration storage applications.

Commenting on the development, Arun Misra, Chief Executive Officer and Whole Time Director of Hindustan Zinc, said the initiative underlines the strategic importance of leveraging India’s zinc resources to support the energy transition through safe, scalable, and cost-effective storage solutions. Dr. Prem Senguttuvan of JNCASR said the partnership strengthens domestic research capabilities and supports the development of clean energy technologies suited to Indian conditions.

Hindustan Zinc, described as the world’s largest integrated zinc producer, said the work aligns with its broader role in the energy transition by supplying critical materials for sectors such as renewable energy, battery storage, and mobility. The company has also introduced EcoZen, a low-carbon zinc product manufactured using renewable energy.