We build the stations that build the cells.
Cell assembly is our focus today, on process stations we design and build ourselves. Electrode production follows, starting in our own research lab.
One line, from powder to a tested cell.
Material moves one way round the line. Cell assembly is our focus today; electrode production follows, starting with research and lab-scale electrodes.
Electrode productionNext
We start with in-house research and lab-scale electrodes, then scale as cell assembly matures.
Mixing
Planetary mixer
Active material, conductive additive and binder are mixed into an even slurry.
Coating
Slot-die coater
The slurry is spread in a thin, even layer onto aluminium (cathode) or copper (anode) foil.
Drying
Drying oven
The solvent is driven off so only the dry coating stays on the foil.
Calendering
Calender rollers
Rollers press the coating to the target thickness and density.
Slitting
Slitter
Wide coated rolls are cut into narrower strips for the cell size.
Vacuum drying
Vacuum oven
Remaining moisture is removed before the electrodes enter the dry room.
Cell assemblyNow
Our focus today: turning electrode sheets into sealed cells, with stations we build ourselves.
Cutting
Notching and cutting station
Electrode sheets are cut to size with their uncoated tab flags.
Stacking
Stacking station
Cathode, separator and anode are stacked layer by layer, precisely aligned.
Tab welding
Ultrasonic welder
The foil flags are gathered and welded to each cell tab, and every weld is checked.
Pouching
Pouch forming and sealing
The stack goes into a formed pouch, which is sealed on three sides.
Electrolyte filling
Filling station
Electrolyte is dosed into the open side and wets the stack under vacuum.
Sealing
Vacuum sealer
The last side is sealed, closing the cell.
Formation and testingIn our lab
Every cell is formed, measured and traced by its barcode on our own test channels.
Formation
Cell cycler
The first controlled charges build the protective layer on the anode.
Degassing
Degassing and final sealing
Gas from formation is removed and the cell is given its final seal.
Ageing
Ageing racks
Cells rest and are checked for self-discharge.
Grading and data
Test channels
Each cell is measured, graded and linked to its data by its barcode.
Watch a cell come together.
The same cell as on our homepage, rebuilt in the order we assemble it.
The materials, before they are a cell.
Coated electrodes, separator, tabs, pouch film and electrolyte.
Electrodes, cut to size.
Cathode and anode sheets with their tab flags. The anode is slightly larger, so it overhangs the cathode on every edge.
Stacked, layer by layer.
Cathode, separator, anode, separator, aligned sheet by sheet.
Tabs welded and checked.
The foil flags are gathered and welded to each cell tab. Every weld is resistance-checked before the cell is sealed.
Into the pouch.
The stack sits in a formed pouch, sealed on three sides against moisture.
Filled with electrolyte.
Electrolyte goes in through the open side and wets the stack under vacuum.
Sealed and formed.
The cell is sealed and given its first controlled charge, which builds the protective layer on the anode.
Degassed and finished.
Gas from formation is removed and the cell gets its final seal.
Graded and traced.
Every cell has a barcode, and every barcode has its data.
Self-built bottleneck stations keep capital per step low.
The stations that limit throughput are the ones we design and build ourselves. We do not buy a complete imported line and wait for it; we build the bottleneck, learn from it and improve it.
Domestic equipment and supply, wherever it meets the spec.
We integrate Indian equipment makers and material suppliers, and develop local alternatives where none exist yet.
Quality is checked at every gate, not at the end.
Weld checks
Every tab weld is resistance-checked before the cell is sealed.
Formation
Each cell's first charge is controlled and recorded.
Grading
Cells are measured and graded, and their data stays linked to their barcode.
We scale only when each stage proves itself.
LabNow
Prototype cells built and tested in our own lab.
Pilot
A pilot line of about 50–100 MWh, built around our own process stations.
Gate and timing pending · content gap C10
Scale
Full-scale production once the pilot proves the process and the cells.
Capacity and timing pending · content gap C10