Open AccessCommunication—Functional Conductive Polymer Binder for Practical Si-Based Electrodes
Author(s) -
Tianyu Zhu,
Gao Liu
Publication year - 2021
Publication title -
journal of the electrochemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.258
H-Index - 271
eISSN - 1945-7111
pISSN - 0013-4651
DOI - 10.1149/1945-7111/abff01
Subject(s) - materials science , anode , electrode , electrical conductor , polymer , conductive polymer , battery (electricity) , composite number , lithium (medication) , lithium battery , nanotechnology , composite material , ion , chemistry , ionic bonding , organic chemistry , power (physics) , physics , quantum mechanics , endocrinology , medicine
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 SiO x (>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 SiO x composite electrodes. The viability of multifunctional conductive polymer binders was further validated in a practical full cell.