Maasvolt
Doc. MSV-2026-BRev. 04Chemelot, NL
00Overview

MSV-62 solid-state pouch cellB-sample, Geleen pilot line

A lithium cell with no liquid electrolyte in it and no solvent in the line that makes it. Everything below is measured on the B-sample rather than modelled, and the numbers are published here before a customer asks for them. This page is the datasheet, not a summary of one.

Key figures, B-sample

412Wh/kg
Cell energy density
9min
10→80% fast charge
1 400cycles
To 80% capacity
0
Liquid electrolyte
01Cell
B-sample, 62 Ah pouch — as measured, not as modelled
ParameterValueStatus
CathodeNi-rich NMC-91, single crystalQualified
SeparatorSulphide glass-ceramic, 18 µmQualified
AnodeLithium metal, 22 µm on CuPilot
Stack pressure1.8 MPa, isostaticPilot
Operating window−20 °C to 65 °CQualified
Thermal runaway onset> 240 °CCertified TÜV
Cell formatPouch, 62 Ah nominalB-sample
02Process
  1. 01

    Dry electrode coating

    No NMP, no drying ovens, no solvent recovery. The coating line is 40 m shorter and draws 62% less energy per GWh than a conventional slurry line.

  2. 02

    Glass-ceramic separator

    Melt-quenched sulphide drawn to 18 µm on a roll-to-roll line originally built for optical film. Ionic conductivity holds at 3.1 mS/cm at room temperature.

  3. 03

    Anode-free assembly

    Lithium plates in situ on the copper current collector during first charge. Nothing pyrophoric enters the dry room, which removes the single largest capex line in the plant.

  4. 04

    Isostatic formation

    Cells form under uniform 1.8 MPa in a 96-position press. Pressure uniformity, not temperature, turned out to be the variable that governs cycle life.

03Scale
  1. 2022Coin cell, 8 Wh/kg over targetDelivered
  2. 2023A-sample pouch, 22 AhDelivered
  3. 2024Pilot line, 40 MWh/yr, ChemelotDelivered
  4. 2026B-sample with two OEM programmesCurrent
  5. 2028Gigafactory phase 1, 6 GWh/yrCommitted
04

Send us your duty cycle. We'll send back real cells.

Programme enquiries
programmes@maasvolt.example
B-samples ship in 6 weeks against a signed NDA and a load profile.
Pilot line
Urmonderbaan 22
6167 RD Geleen
Netherlands
Data room
Cycle-life dataset (CSV, 1 400 cycles)
TÜV nail-penetration report
Maasvolt BV — KvK 00000000 (fictional)All figures illustrative