Communication—Functional Conductive Polymer Binder for Practical Si-Based Electrodes. Issue 5 (20th May 2021)

• Record Type: Journal Article
• Authors: Zhu, Tianyu; Liu, Gao
• Is Part Of: Journal of the Electrochemical Society. Volume 168:Issue 5(2021)
• Publication Date: 2021-05-20
• Subjects: Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/1945-7111/abff01
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : Multifunctional conductive binders represent an emerging class of polymer materials to address inherent challenges of Si electrodes for high capacity lithium-ion batteries. Advanced binders with oriented functionalities are greatly desired to facilitate the battery chemistry. We here report stable capacity cycling of a practical composite anode comprising industrial available SiOx (>60 wt%), carbon materials and a conductive polymer binder—poly(9, 9-dioctylfluorene- co -fluorenonecomethylbenzoic ester) (PFM). This multifunctional polymer functions as both an interface modifier and an electrode binder for high-performing SiOx composite electrodes. The viability of multifunctional conductive polymer binders was further validated in a practical full cell.