In this episode I’m joined by Apoorv Shaligram, founder and CEO of e-TRNL Energy. Apoorv, and his fellow founder Uttam Sen, IIT Bombay alumni both, and their team are tackling the electric vehicle industry’s most critical “wants”: high levels of safety and fast charging.
While battery chemistry has attracted a lot of innovation effort, e-TRNL is focusing on the cell architecture instead. Their core innovation, 3D Electrode Architecture (3DEA), moves away from the traditional 2D thin-layered designs found in everything from smartphones to current EVs.
By fundamentally changing how current flows inside the cell, 3DEA reduces resistance and heat at the source, Apoorv explains. This makes batteries “super resilient” to thermal waste – the excess heat generated within a battery cell during its operation, primarily caused by internal resistance – preventing the catastrophic “cascading” fires in some EV batteries.
Beyond safety, this architecture unlocks the capability for 15-minute fast charging and longer-lasting, lighter battery packs, he says.
Apoorv also explains how they have verticalized their technology stack, putting together manufacturing processes from the ground up: They have also condensed the conventional 24-step manufacturing process into a precise 8-step operation. And the entrepreneurs envision modular, container-sized factories that reduce energy consumption and that are better suited to markets that lack large-scale adoption.
In this episode, Apoorv also talks about how India’s deep tech landscape is changing, with the government catalysing the discourse in the country. And we takeaway some lessons from e-TRNL’s recent Rs. 27.4 crore seed round, and the roadmap to hit full-scale manufacturing.
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