Additive Snack

Fabian Alefeld hosts Karl Littau, CTO of Sakuu, to discuss why rechargeable battery manufacturing has changed little in decades and how Sakuu is rethinking it with additive approaches. Littau explains conventional thick-film slurry coating and stacked anode/cathode layers, noting heavy use of copper and aluminum and high costs driven largely by bill of materials. He outlines battery basics (anode, cathode, electrolyte) and contrasts lithium-ion with solid-state concepts, where solids replace liquid electrolytes but face commercialization challenges. Sakuu’s initial product targets electrode coating by shifting from wet, solvent-based processes to dry powder-bed methods, enabling powder reclaim/reuse, removing toxic solvents, reducing equipment size (e.g., long drying ovens), and potentially increasing throughput. The conversation also covers future possibilities like multi-material patterning, arbitrary shapes, bipolar designs that reduce metal, and broader impacts on EVs, grid storage, and electrification.
 
00:00 Welcome and Topic

01:32 Why Batteries Need Change

04:13 Cost Drivers Today

07:53 Sakuu Additive Approach

13:09 Battery Basics Explained

18:30 Dry Powder Manufacturing

26:10 Speed and Footprint Gains

28:47 Scaling and Supply Chain

32:27 Future Shapes and Structures

35:42 Solid State Readiness

37:48 Sakuu Origin Story

40:31 Roadmap and Industry Impact

42:34 Electrification Future Vision

49:48 Wrap Up and Thanks
 

Creators and Guests

Host
Fabian Alefeld

What is Additive Snack?

Join host Fabian Alefeld and a range of guests as they discuss all things additive manufacturing (AM) and 3D printing news, with interviews and real-world stories to educate and entertain. Each episode, Fabian talks to AM experts, professionals in specialist fields, and 3D printing users from all walks of life to deliver a well-rounded view on the state of AM.

Cut through the confusion surrounding polymer and metal additive manufacturing solutions with our digestible, down-to-earth discussions that deliver insights into common mistakes and best practice tips so you can get a clear understanding of AM — layer for layer.

Whether you’re curious about 3D printing technology for the aerospace industry, a deep dive into post processing, or applications of injection molding — we leave no spare parts behind. We want to provide you with the additive insight needed to stay laser focused and leverage every opportunity 3D printing materials have to offer.

Join us for an Additive Snack and we’ll help you and your business achieve growth and success through the latest developments in AM.

No marketing B.S. and no product pitches. Just the education, inspiration and information you and your organization need to drive business growth, brought to you by global AM leader EOS.

Get ready to feed your AM knowledge and find your path to success!