Winner — ELEVATE 2025, Govt. of Karnataka Energy storage solutions

The right storage technology for the application.

eQube builds and integrates energy storage technologies for BESS and data centre applications. We're currently scaling sodium-ion battery cells — built on proprietary electrode materials — as our first platform, with other storage technologies on the roadmap as they fit customer needs.

eQube's storage technology approach: sodium-ion cells actively scaling now, with alternative chemistries, pumped hydro, and flow batteries as roadmap technologies STORAGE TECHNOLOGY APPROACH Sodium-ion cells Proprietary electrode materials Scaling now Alternative chemistries Evaluated as applications need Roadmap Pumped hydro Mechanical, long-duration storage Roadmap Flow batteries Long-duration, scalable storage Roadmap One engineering platform. Multiple storage technologies.
Technology-agnostic We choose the storage technology that fits the application
Na-ion — current focus Proprietary electrode materials, scaling to large format
AI-guided Manufacturing tuned for minimal defects, high throughput
BESS + DC Built for stationary storage and data centre power

Our first platform: sodium-ion

eQube isn't wedded to one chemistry — we choose the storage technology that fits the application. For today's BESS and data centre requirements, sodium-ion is the strongest starting point:

Abundant feedstock

Sodium is drawn from globally distributed, low-cost reserves — no dependence on lithium or cobalt supply chains.

Thermal stability

Chemistry with a wider safety margin suits fixed installations where cells sit dense, for years, without a service stop.

Cost predictability

Stable input pricing gives BESS project economics a foundation that isn't tied to lithium market swings.

Built for fixed installs

Optimised for cycle life and footprint efficiency in racks and containers, not for weight-constrained mobility.

What we do

Three connected capabilities, from storage technology through to the system that puts it to work.

R&D + manufacturing

Proprietary electrode materials, scaling to large format

In-house R&D on sodium-ion active materials and electrode processes — our first storage technology platform — moving from validated small-format cells toward large-format manufacturing with AI-enabled process control for defect reduction and throughput.

BMS + system integration

Building the layer between cell and installation

In parallel with cell development, we're building battery management system and system integration capability so our cells arrive as a deployable BESS building block, not just a component.

Consultancy

Advisory for EV and BESS storage programs

Independent technical consultancy for teams working on storage programs across EV and BESS — drawing on hands-on R&D, manufacturing, and systems experience.

Where our storage goes

Battery Energy Storage Systems

Grid-scale and behind-the-meter storage, where cycle life, safety margin, and cost per cycle decide the economics of a project over a decade of operation.

Data centre power

Backup and load-shifting power for data centres, where storage sits in dense racks under continuous duty — a use case that rewards thermal stability as much as capacity.

Scaling sodium-ion today, building the storage platform for tomorrow.

If you're evaluating storage technology for a BESS or data centre program, or exploring a consultancy engagement, we'd like to hear from you.

Contact eQube