Scalable Route to Electroactive and Light Active Perylene Diimide Dye Polymer Binder for Lithium-Ion Batteries

Pierre Ranque (1) , Chandramohan George (2) , Rajeev Dubey (1) , Remco van Der Jagt (1) , Delphine Flahaut (3) , Rémi Dedryvère (3) , Marcus Fehse (4, 1) , Panagiotis Kassanos (5) , Wolter Jager (1) , Ernst Sudhölter (1) , Erik Kelder (1, 5)

1 TU Delft - Delft University of Technology
2 Dyson School of Design Engineering
3 IPREM - Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux
4 ESRF - European Synchrotron Radiation Facility [Grenoble]
5 Imperial College London

Developing multifunctional polymeric binders is key to the design of energy storage technologies with value-added features. We report that a multigram-scale synthesis of perylene diimide polymer (PPDI), from a single batch via polymer analogous reaction route, yields high molecular weight polymers with suitable thermal stability and minimized solubility in electrolytes, potentially leading to improved binding affinity toward electrode particles. Further, it develops strategies for designing copolymers with virtually any desired composition via a subsequent grafting, leading to purpose-built binders. PPDI dye as both binder and electroactive additive in lithium half-cells using lithium iron phosphate exhibits good electrochemical performance.

Mots clés: battery binder; conductive polymer; Li-ion batteries; perylene dye; redox active polymer

Domaines: Polymères; Chimie théorique et/ou physique

Pierre Ranque, Chandramohan George, Rajeev Dubey, Remco van Der Jagt, Delphine Flahaut, et al.. Scalable Route to Electroactive and Light Active Perylene Diimide Dye Polymer Binder for Lithium-Ion Batteries. ACS Applied Energy Materials, 2020, 3 (3), pp.2271-2277. ⟨10.1021/acsaem.9b01225⟩. ⟨hal-02543156⟩