Rechargion Energy: Pioneering Sodium-Ion Batteries in India 2026

INTRODUCTION

In 2026, India faces a significant challenge in battery technology: the reliance on imported lithium cells. Rechargion Energy, founded in Pune in 2021, aims to address this issue by developing sodium-ion batteries. These batteries use abundant, domestically available materials, offering a cost-effective and safer alternative to traditional lithium-ion batteries.

COMPANY OVERVIEW

Rechargion Energy was established by Dr. Vilas Shelke, Dr. Manjusha Shelke, and John R Normanton. Dr. Manjusha Shelke, a chief scientist at CSIR's National Chemical Laboratory, spearheaded the company's research. The company's headquarters are in Pune, Maharashtra, and it is a spin-off from the CSIR-National Chemical Laboratory.

TECHNOLOGY AND INNOVATION

Rechargion's innovation centers on the materials used in sodium-ion batteries rather than the cell design. The company has patented hard carbon as the anode material and uses proprietary electrode materials and sodium compounds. A polymer anode further enhances the commercial viability of the cells by reducing costs.

SAFETY AND COMPLIANCE

Sodium-ion batteries offer significant safety advantages over lithium-ion batteries. They can be discharged to zero volts without damage, and they are less prone to thermal runaway. In August 2025, the Automotive Research Association of India (ARAI) completed a two-month evaluation of Rechargion's cells under the IEC 62660 protocol. The tests covered vibration, mechanical shock, crushing, high-temperature endurance, short circuit, overcharge, and forced discharge.

GOVERNMENT AND INSTITUTIONAL SUPPORT

Rechargion Energy has received substantial support from various government and development channels. This includes backing from the Ministry of Heavy Industries through the ARAI-AMTIF accelerator, the United Nations Industrial Development Organisation (UNIDO), the US-India Science and Technology Endowment Fund, Social Alpha, and the Venture Center at NCL. No specific funding amount has been disclosed.

FUTURE PROSPECTS

Rechargion Energy is setting up a facility to produce 500 cells a day, a crucial step towards larger-scale manufacturing. Although this production volume is small compared to India's vast demand, it addresses the critical issue of consistency in cell manufacturing.

FAQs

**Q: What is the main advantage of sodium-ion batteries over lithium-ion batteries? A: Sodium-ion batteries use domestically available materials, are safer, and can be discharged to zero volts without damage.

**Q: What is the significance of IEC 62660 compliance? A: IEC 62660 compliance indicates rigorous testing under international safety standards, making Rechargion Energy the first in India to achieve this for sodium-ion batteries.

**Q: How does Rechargion Energy plan to scale up production? A: The company is setting up a facility to produce 500 cells a day, which is a step towards meeting larger-scale manufacturing needs.

CONCLUSION

Rechargion Energy is making significant strides in developing cost-effective, domestically sourced sodium-ion batteries. With its focus on safety and compliance, the company is poised to address India's battery needs sustainably and innovatively.

CALL-TO-ACTION

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