Integrating SEI into Layered Conductive Polymer Coatings for Ultrastable Silicon Anodes
Tianjin University · Unité Matériaux et Transformations · +3 more institutions
Abstract
Abstract Tackling the huge volume expansion of silicon (Si) anode desires a stable solid electrolyte interphase (SEI) to prohibit the interfacial side reactions. Here, a layered conductive polyaniline (LCP) coating is built on Si nanoparticles to achieve high areal capacity and long lifespan. The conformal LCP coating stores electrolyte in interlamination spaces and directs an in situ formation of LCP‐integrated hybrid SEI skin with uniform distribution of organic and inorganic components, enhancing the flexibility of the SEI to buffer the volume changes and maintaining homogeneous ion transport during cycling. As a result, the Si anode shows a remarkable cycling stability under high areal capacity (≈3 mAh cm…
Citation impact
- FWCI
- 23.17
- Percentile
- 100%
- References
- 60
Authors
13- SPSiyuan Pan
Tianjin University, Unité Matériaux et Transformations, State Key Laboratory of Chemical Engineering
- JHJunwei Han
Tianjin University, State Key Laboratory of Chemical Engineering
- YWYiqiao Wang
Tianjin University, Unité Matériaux et Transformations, State Key Laboratory of Chemical Engineering
- ZLZhenshen Li
Tianjin University, Unité Matériaux et Transformations, State Key Laboratory of Chemical Engineering
- FCFanqi Chen
Tianjin University, Unité Matériaux et Transformations, State Key Laboratory of Chemical Engineering
Topics & keywords
- Materials science
- Anode
- Electrolyte
- Silicon
- Conformal coating
- Coating
- Polyaniline
- Electrical conductor