Si@S‐doped C anode with high cycling stability using PVA‐ g ‐PAA water soluble binder for lithium‐ion batteries | Zendy

Zhang Congcong | Zendy; Su Jing | Zendy; Hu Jinlong | Zendy; Zhang Lingzhi | Zendy

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Si@S‐doped C anode with high cycling stability using PVA‐ g ‐PAA water soluble binder for lithium‐ion batteries

Author(s) -

Zhang Congcong,

Su Jing,

Hu Jinlong,

Zhang Lingzhi

Publication year - 2020

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.48764

Subject(s) - acrylic acid , materials science , faraday efficiency , carboxymethyl cellulose , polyacrylic acid , chemical engineering , styrene , polyelectrolyte , anode , polymer chemistry , lithium (medication) , sulfonate , vinyl alcohol , polymerization , calcination , polymer , radical polymerization , electrode , sodium , copolymer , chemistry , organic chemistry , catalysis , composite material , medicine , endocrinology , metallurgy , engineering

The nanostructured Si@S‐doped C (Si/C) hybrid is synthesized via a mild hydrothermal process of glucose and the simultaneous polymerization of 3,4‐ethylenedioxythiophene and poly(sodium‐4‐styrene sulfonate) on the surface of nano‐Si powders, then followed by a calcination process. A new water soluble polymer of poly(vinyl alcohol) (PVA) grafted with poly(acrylic acid) (PAA) is synthesized via a free‐radical polymerization of acrylic acid (AA) in a 1:1 weight ratio in PVA water solution. The Si/C anode using PVA‐ g ‐PAA binder, exhibits improved lithium storage properties and cycling stability than that of the parallel electrode with carboxymethyl cellulose binder, which exhibits an initial coulombic efficiency (82.0%), even a reversible capacity of 487 mAh g −1 after 300 cycles with 81.2% capacity retention at 0.4 A g −1 . © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137 , 48764.

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