Boosting Self-Reliance in Energy Storage: TDB Supports Indigenous Production of Bio-Based Hard Carbon for Next-Gen Batteries

In a strategic move to strengthen India’s next-generation energy storage ecosystem, the Technology Development Board (TDB), under the Department of Science & Technology (DST), has extended financial support to Indigenous Energy Storage Technologies Private Limited for a project focused on commercializing bio-waste-derived hard carbon for sodium-ion batteries.

The initiative aims to establish domestic capabilities for producing advanced anode materials using agricultural and bio-waste, marking a significant step toward cost-effective and sustainable battery manufacturing in India.

The project will focus on scaling up the production of hard carbon—an essential anode material for sodium-ion batteries (SIBs)—using biomass and agricultural residues. Sodium-ion batteries are increasingly being seen as a viable alternative to lithium-ion systems, particularly for grid-scale storage, UPS and inverter solutions, solar street lighting, and low-speed electric mobility applications such as e-rickshaws and e-scooters.

Hard carbon offers key performance advantages in sodium-ion chemistry, including high initial coulombic efficiency, stable cycling, and improved energy storage capacity. Its disordered structure and inherent porosity make it more suitable than conventional graphite for sodium-ion applications. Additionally, sourcing raw materials from biomass enhances sustainability while reducing reliance on imported inputs.

The project also introduces a circular manufacturing approach by converting agricultural and bio-waste into high-value battery materials. This aligns with India’s broader push toward resource efficiency and supply chain resilience, particularly as sodium and carbon are more abundant and widely distributed compared to lithium.

With TDB’s backing, the company is expected to accelerate commercialization efforts and scale production of indigenous hard carbon materials tailored for emerging sodium-ion technologies. The development is anticipated to support India’s clean energy transition while fostering a self-reliant battery ecosystem.

Commenting on the development, TDB Secretary Rajesh Kumar Pathak emphasized the importance of advancing alternative energy storage technologies. He highlighted that innovations leveraging waste-to-value models are crucial for building a resilient and sustainable energy future.

The company’s promoters welcomed the support, noting that the funding will fast-track the commercialization of sustainable battery materials and contribute to the development of scalable and affordable energy storage solutions.