Senior Technology & Innovation Lead | Leader in Battery Storage and Solar/Photovoltaics | Partnerships and Business Development | Silicon Valley
Our dry-coating team at BMW has been quite busy ocer the past years, but it has been worth it: While dry-coating promises lower cost due reduced energy demand (no drying required) and lower capital invest (again , no drying equipment), one of the key criticism has been the need to use a highly fluorinated binder (PTFE aka Teflon), which often is associated with certain health risks and faces the risk of being banned. Our Dry-coating Team at BMW has tackled this issue , and shown great performance using PE, while at the same time improving first cycle efficiency (PE is more stable at low anode potentials present in highly charged, Lithiated anodes). Have a read, this and excellent paper by Vincent , Stefan, Thomas, Korbinian. and thr whole dry-coating Team at BMW, bringing mass adoption closer than ever!!!
🔋 Paper Alert! 🔋 We are very happy to share our recent publication focusing on increasing the sustainability of the Dry Battery Electrode (DBE) technology even further. 🌱🔋💸 Our study introduces ultra-high molecular weight polyethylene (UHMW PE) as an alternative to the state-of-the-art binder PTFE. UHMW PE enables the solvent- and PFAS-free electrode fabrication of battery electrodes. Moreover, this scalable alternative binder has a lower carbon footprint compared to PTFE and is stable against lithium at lower anode potentials. Key Highlights: - Production of graphite anodes with different UHMW PE grade.s - Evaluation of the most critical polymer properties and parameters. - Identification of a lower threshold for the binder particle size. - Characterization and benchmarking of proof-of-concept anodes against traditional wet- and dry-coated anodes. - First insights into the filamentation of UHMW PE within an active material composite. - Validation of the electrochemical stability of UHMW PE against lithium at lower anode potentials. Our findings pave the way for PFAS-free and even more sustainable DBE production at an industrial scale. Many thanks to my great co-authors: Dr. Florian Schmidt, Thomas Woehrle, Stefan Stojcevic, Astrid Trenkler, Vanessa Froehler And my supervising professor Simon Lux Enjoy reading and stay tuned – we have been busy and there is more to come from our dry coating team @BMW. 📜 https://lnkd.in/eBPJcTtv
CMO with Global Sales Leadership Background | B2B Market Development Expert across Semiconductor, Solar & Battery Industries
6hExcellent achievement — replacing PTFE while improving efficiency is no small feat. We’re also exploring process innovations for safer and more sustainable electrode manufacturing, so this is very inspiring to see. Congratulations to the team!