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Enhanced Electrochemical Performance Promoted by Tin in Silica Anode Materials for Stable and High-Capacity Lithium-Ion Batteries

Although the silicon oxide (SiO(2)) as an anode material shows potential and promise for lithium-ion batteries (LIBs), owing to its high capacity, low cost, abundance, and safety, severe capacity decay and sluggish charge transfer during the discharge–charge process has caused a serious challenge fo...

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Autores principales: Ding, Xuli, Liang, Daowei, Zhao, Hongda
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7956249/
https://www.ncbi.nlm.nih.gov/pubmed/33669064
http://dx.doi.org/10.3390/ma14051071
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author Ding, Xuli
Liang, Daowei
Zhao, Hongda
author_facet Ding, Xuli
Liang, Daowei
Zhao, Hongda
author_sort Ding, Xuli
collection PubMed
description Although the silicon oxide (SiO(2)) as an anode material shows potential and promise for lithium-ion batteries (LIBs), owing to its high capacity, low cost, abundance, and safety, severe capacity decay and sluggish charge transfer during the discharge–charge process has caused a serious challenge for available applications. Herein, a novel 3D porous silicon oxide@Pourous Carbon@Tin (SiO(2)@Pc@Sn) composite anode material was firstly designed and synthesized by freeze-drying and thermal-melting self-assembly, in which SiO(2) microparticles were encapsulated in the porous carbon as well as Sn nanoballs being uniformly dispersed in the SiO(2)@Pc-like sesame seeds, effectively constructing a robust and conductive 3D porous Jujube cake-like architecture that is beneficial for fast ion transfer and high structural stability. Such a SiO(2)@Pc@Sn micro-nano hierarchical structure as a LIBs anode exhibits a large reversible specific capacity ~520 mAh·g(−1), initial coulombic efficiency (ICE) ~52%, outstanding rate capability, and excellent cycling stability over 100 cycles. Furthermore, the phase evolution and underlying electrochemical mechanism during the charge–discharge process were further uncovered by cyclic voltammetry (CV) investigation.
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spelling pubmed-79562492021-03-15 Enhanced Electrochemical Performance Promoted by Tin in Silica Anode Materials for Stable and High-Capacity Lithium-Ion Batteries Ding, Xuli Liang, Daowei Zhao, Hongda Materials (Basel) Article Although the silicon oxide (SiO(2)) as an anode material shows potential and promise for lithium-ion batteries (LIBs), owing to its high capacity, low cost, abundance, and safety, severe capacity decay and sluggish charge transfer during the discharge–charge process has caused a serious challenge for available applications. Herein, a novel 3D porous silicon oxide@Pourous Carbon@Tin (SiO(2)@Pc@Sn) composite anode material was firstly designed and synthesized by freeze-drying and thermal-melting self-assembly, in which SiO(2) microparticles were encapsulated in the porous carbon as well as Sn nanoballs being uniformly dispersed in the SiO(2)@Pc-like sesame seeds, effectively constructing a robust and conductive 3D porous Jujube cake-like architecture that is beneficial for fast ion transfer and high structural stability. Such a SiO(2)@Pc@Sn micro-nano hierarchical structure as a LIBs anode exhibits a large reversible specific capacity ~520 mAh·g(−1), initial coulombic efficiency (ICE) ~52%, outstanding rate capability, and excellent cycling stability over 100 cycles. Furthermore, the phase evolution and underlying electrochemical mechanism during the charge–discharge process were further uncovered by cyclic voltammetry (CV) investigation. MDPI 2021-02-25 /pmc/articles/PMC7956249/ /pubmed/33669064 http://dx.doi.org/10.3390/ma14051071 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ding, Xuli
Liang, Daowei
Zhao, Hongda
Enhanced Electrochemical Performance Promoted by Tin in Silica Anode Materials for Stable and High-Capacity Lithium-Ion Batteries
title Enhanced Electrochemical Performance Promoted by Tin in Silica Anode Materials for Stable and High-Capacity Lithium-Ion Batteries
title_full Enhanced Electrochemical Performance Promoted by Tin in Silica Anode Materials for Stable and High-Capacity Lithium-Ion Batteries
title_fullStr Enhanced Electrochemical Performance Promoted by Tin in Silica Anode Materials for Stable and High-Capacity Lithium-Ion Batteries
title_full_unstemmed Enhanced Electrochemical Performance Promoted by Tin in Silica Anode Materials for Stable and High-Capacity Lithium-Ion Batteries
title_short Enhanced Electrochemical Performance Promoted by Tin in Silica Anode Materials for Stable and High-Capacity Lithium-Ion Batteries
title_sort enhanced electrochemical performance promoted by tin in silica anode materials for stable and high-capacity lithium-ion batteries
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7956249/
https://www.ncbi.nlm.nih.gov/pubmed/33669064
http://dx.doi.org/10.3390/ma14051071
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AT zhaohongda enhancedelectrochemicalperformancepromotedbytininsilicaanodematerialsforstableandhighcapacitylithiumionbatteries