학술논문
Synthesis of Poly(3,4-ethylenedioxythiophene) (PEDOT) as a Binder for Silicon Anodes of Lithium-ion Batteries
Document Type
Dissertation/ Thesis
Author
Source
Subject
Language
English
Abstract
An aqueous dispersion of poly(3,4-ethylenedioxythiophene) (PEDOT) was derived with the presence of poly(acrylic acid) (PAA) as a template agent. In addition, synthesized results were used as a binder for silicon anodes of lithium-ion batteries (LIBs). Due to its own conductivity, PEDOT is able to provide the conductive path for effective electron transfer between current collectors and electrode materials. Furthermore, utilizing dispersing agent, especially iron(III) sulfate (FS), reduces the particle size of PEDOT from ~ 400 nm to ~ 50 nm. Consequently, small sized PEDOT (PEDOT-S) can be dispersed more homogeneously in electrode materials compared to large sized PEDOT (PEDOT-L). The electrode composites with PEDOT-S binder exhibit the better electrochemical performance and electrical properties compared to PEDOT-L, PAA, and CMC binder.