e-TRNL Energy: Revolutionizing Battery Cell Technology in 2026

Introduction

In the ever-evolving world of battery technology, e-TRNL Energy stands out by fundamentally rethinking the design and architecture of battery cells. Founded in 2021 by Apoorv Shaligram and Uttam Kumar Sen, the company aims to revolutionize how battery cells are manufactured and used.

Company Overview

Founded: 2021

Founders: Apoorv Shaligram (CEO), Uttam Kumar Sen

Headquarters: Bengaluru

Sector: Battery cell technology

Funding Raised: ₹27.4 crore seed, February 2026; ₹7.5 crore pre-seed, 2022

Key Investors: IAN Alpha Fund (seed lead), Navam Capital, Anicut Capital, Speciale Invest, Micelio Mobility, IIMA Ventures

Angel Investors: Tarun Mehta and Swapnil Jain, co-founders of Ather Energy

Facility: 20,000 sq ft research and early manufacturing facility, Bengaluru

Innovative Design and Technology

e-TRNL Energy has been working on a revolutionary approach to battery cell design. Unlike traditional methods that focus solely on chemical improvements, e-TRNL Energy has rebuilt the cell architecture and manufacturing process from scratch.

The central claim is that the architecture is chemistry-agnostic, meaning it works with current lithium-ion chemistries and future sodium-ion chemistries. The benefits from this redesign include lower heat generation, faster charging, longer cycle life, higher energy density, and better manufacturing economics.

The company has been granted two patents on the cell design and has filed further applications. e-TRNL Energy describes a full-stack approach covering cell design, manufacturing technology, and machinery development, with all production equipment engineered in-house from concept to full automation.

Funding and Investors

In February 2026, e-TRNL Energy raised Rs 27.4 crore, about $3 million, in a seed round led by IAN Alpha Fund through its IAN Group. Navam Capital and Anicut Capital participated alongside existing investors Speciale Invest, Micelio Mobility, and IIMA Ventures. Ather Energy's co-founders Tarun Mehta and Swapnil Jain also came in as angel investors.

The founder frames this round as a turning point rather than a beginning. Shaligram has said the past three years went into creating the design and building the machines and processes to realize it, and that the funding moves the company towards demonstration, testing, and scaling.

Future Plans

The new money is for completing product development, validating performance and safety, and demonstrating that the cells can be manufactured in India at scale. The company has a 20,000-square-foot research and early manufacturing facility in Bengaluru and plans a 250 megawatt-hour pilot manufacturing plant by 2027, with the intention of expanding that to 2 gigawatt hours later.

FAQ Section

**Q: What is e-TRNL Energy's central claim about its cell architecture? A: The central claim is that the architecture is chemistry-agnostic, meaning it works with current lithium-ion chemistries and future sodium-ion chemistries.

**Q: How much funding did e-TRNL Energy raise in 2026? A: e-TRNL Energy raised Rs 27.4 crore, about $3 million, in a seed round in February 2026.

**Q: What are the benefits of e-TRNL Energy's cell design? A: The benefits include lower heat generation, faster charging, longer cycle life, higher energy density, and better manufacturing economics.

Conclusion

e-TRNL Energy is at the forefront of revolutionizing battery cell technology with its innovative design and manufacturing approach. With significant funding and a dedicated team, the company is poised to make a substantial impact on India's energy transition and the global battery market.

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