
Develops and manufactures semi-, quasi- and all-solid-state battery cells with energy densities above 500 Wh/kg
Enpower Greentech GmbH
Karlsruhe · San Jose, CA · Ann Arbor, MI · Beijing (Daxing) · Tokyo · YokohamaNew on Amplifa
About Enpower Greentech
Enpower Greentech develops and manufactures next-generation battery cells: Semi-Solid-State (SWIFT), Quasi-Solid-State with lithium-metal anode (FLEET) and All-Solid-State batteries with sulfide electrolyte (KOSMOS). Energy densities reach up to 403 Wh/kg (SWIFT), 525 Wh/kg (FLEET) and over 400 Wh/kg for ASSB, depending on the platform. Founded in 2012 by Dr. Sam Dai and Dr. Che Yong – both postdoctoral researchers under Nobel laureate Dr. John B. Goodenough – the company employs more than 500 people worldwide in the USA, China, Japan and Germany. Production takes place on highly automated production lines in Ann Arbor (USA) and Beijing (China); a production capacity of over 1 GWh is planned by 2030. Around 3 million solid-state cells have already been shipped, including as primary battery partner in SoftBank's HAPS program. Customers come from aerospace, robotics, marine, commercial vehicles and defense; Enpower Greentech GmbH in Karlsruhe serves the European market.
- Site
- Karlsruhe
- Processes
- Manufacture of semi-solid-state battery cells (SWIFT platform, series production), Manufacture of quasi-solid-state battery cells with lithium-metal anode (FLEET platform), Manufacture of all-solid-state battery cells with sulfide electrolyte and lithium-metal anode, Development and manufacturing of battery packs as well as joint development through to series, Si-C anode technology (development/manufacturing), Joint development (collaborative cell development), A/B/C samples through to series production, Cell and pack manufacturing on highly automated production lines
- Materials
- Lithium-metal anode, Silicon-carbon anode material (Si-C), Quasi-solid-state electrolyte, Sulfide electrolyte (solid electrolyte), Semi-Solid-State batteries, Quasi-solid-state batteries with lithium-metal anode, All-Solid-State batteries (sulfide electrolyte, lithium-metal anode), Silicon-carbon anode material
- Founded
- 2012
- Employees
- 500+
- Industries
- Aerospace (drones, eVTOL, HAPS), Electric motorcycles, Robotics, Marine, Commercial vehicles, Defense
- 01
Joint development (collaborative cell development)
- 02
A/B/C samples
- 03
Cell and pack manufacturing on highly automated production lines
- 04
Series production
Cell chemistries & platforms
Semi-Solid-State batteries
Aviation-grade platform for industrial drones, eVTOL and heavy-lift drones with up to 403 Wh/kg cell energy density and series production.
Quasi-solid-state batteries with lithium-metal anode
For operation down to -60 °C in the stratosphere, e.g. pseudo-satellites and high-altitude drones, with up to 525 Wh/kg.
All-Solid-State batteries (sulfide electrolyte, lithium-metal anode)
Platform designed for maximum safety and performance, breaking through the ASSB barrier of 400 Wh/kg.
Silicon-carbon anode material
Anode technology with an optimal power-to-weight ratio and fast-charging capability, among others for electric motorcycles.
Locations

Karlsruhe
DEEuropean site (Enpower Greentech GmbH), Amalie-Baader-Str. 2
San Jose, CA
USSilicon Valley Office

Ann Arbor, MI
USManufacturing, Technical Center and administration
- Lot size
- Series production
- Materials
- SWIFT and FLEET cells
- Highly automated battery cell production lines
Beijing (Daxing)
CNManufacturing (Enpower Technology Co.)
- Lot size
- Series production
- Materials
- SWIFT and FLEET cells
- Highly automated battery cell production lines
Tokyo
JPOffice (Enpower Japan Corp.)
Yokohama
JPLaboratory (Enpower Japan Corp.)
Battery products



Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of semi-solid-state battery cells (SWIFT platform, series production)Cell manufacturing/electronics | – | – | – | Series production/mass data production | Lithium, Silicon-carbon (Si-C) anode material |
| Manufacture of quasi-solid-state battery cells with lithium-metal anode (FLEET platform)Cell manufacturing/electronics | – | – | – | Series production | Lithium metal, Quasi-solid-state electrolyte |
| Manufacture of all-solid-state battery cells with sulfide electrolyte and lithium-metal anodeCell manufacturing/electronics | – | – | – | – | Lithium metal, Sulfide electrolyte |
| Development and manufacturing of battery packs as well as joint development through to seriesEngineering | – | – | – | Series production | – |
| Si-C anode technology (development/manufacturing)Engineering | – | – | – | – | Silicon-carbon (Si-C) |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Highly automated battery cell production lines | – | – | – | – | Ann Arbor, MI (USA); Beijing Daxing (China) |
Additional services
Reference customers
History
- 2012
Founding of Enpower Greentech by Dr. Sam Dai and Dr. Che Yong, postdoctoral researchers under Nobel laureate Dr. John B. Goodenough.
- 2026
Participation in DroneX London, The Battery Show Europe (Stuttgart) and XPONENTIAL Europe (Düsseldorf); partnership with EOSCOM ELEKTRONIK as authorized distributor in Turkey; EU Battery Passport data prepared (validated by SecIdent).