Synergistic effect of carbon nanomaterials on a cost-effective coral-like Si/rGO composite for lithium ion battery application

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dc.contributor.authorBenzait, Zineb
dc.contributor.authorYuca, Neslihan
dc.date.accessioned2024-07-12T21:58:24Z
dc.date.available2024-07-12T21:58:24Z
dc.date.issued2020en_US
dc.departmentMaltepe Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesien_US
dc.description.abstractThe emergence and the continuous rise of smart technologies require to emergently meet their ever-increasing energy demand. Improving the commercial lithium-ion batteries (LIB) by using silicon-which has a distinct energy storage capacity-might be a promising solution. However, solving Sirelated problems, such as gross volume variation and low electrical conduction, is indispensable. Preparing different Si nanostructures having certain internal voids, and adding some conductive materials, are two smart approaches largely used to mitigate the volume expansion and to enhance the electrons transport of LIB anodes. Still, their raw materials and their preparation methods are generally costly, which limits their feasibility for commercial scalability. In this study, we synthesized a coral-like nanoporous Si/rGO composite, starting from cheap raw materials (graphite and Al-Si powders), and using simple methods which do not need any high temperatures or sophisticated equipment. The preparation steps were also reduced, as the reactions of Al-etching and GO reduction concurrently occurred. The LIB half-cells made on this composite were further improved by incorporating other carbon nanomaterials which had a synergistic effect on both cycling and rate performances: a reversible capacity of 1080 mAh g(-1) at 0.2 A g(-1) after 250 cycles; and similar to 1710,1300,1030 - and 840 mAh g(-1) at a rate of 1, 2, 3, and 4 A g(-1) respectively, have been achieved. Testing a full battery with an LCO cathode has also given a promising result: a reversible capacity of similar to 54 mAh g(-1) at 36 mA g(-1) after 25 cycles has been obtained. (C) 2020 Elsevier Ltd. All rights reserved.en_US
dc.identifier.citationBenzait, Z. ve Yuca, N. (2020). Synergistic effect of carbon nanomaterials on a cost-effective coral-like Si/rGO composite for lithium ion battery application. ELECTROCHIMICA ACTA. (339).en_US
dc.identifier.doi10.1016/j.electacta.2020.135917
dc.identifier.issn1873-3859
dc.identifier.issue339en_US
dc.identifier.scopus2-s2.0-85079877826en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.urihttps://doi.prg/10.1016/j.electacta.2020.135917
dc.identifier.urihttps://hdl.handle.net/20.500.12415/8796
dc.identifier.wosWOS:000524973600019en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherPERGAMON-ELSEVIER SCIENCE LTDen_US
dc.relation.ispartofELECTROCHIMICA ACTAen_US
dc.relation.publicationcategoryUluslararası Hakemli Dergide Makale - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmzKY00787
dc.subjectLithium ion batteryen_US
dc.subjectSilicon anodeen_US
dc.subjectGrapheneen_US
dc.subjectCarbon nanomaterialsen_US
dc.subjectSynergistic effecten_US
dc.titleSynergistic effect of carbon nanomaterials on a cost-effective coral-like Si/rGO composite for lithium ion battery applicationen_US
dc.typeArticle
dspace.entity.typePublication

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