$ SnO_{2} $-$ Fe_{2} $$ O_{3} $ embedded in graphene nanosheets enhances conductivity and stable structure as a high-performance anode material for lithium-ion batteries

Abstract $ SnO_{2} $/$ Fe_{2} $$ O_{3} $/graphene nanocomposites were prepared by ball milling in planetary ball mill. $ SnO_{2} $/$ Fe_{2} $$ O_{3} $ nanoparticles are homogeneously fixed in graphite dilute nanosheets. It is worth noting that $ Fe_{2} $$ O_{3} $ nanoparticles can inhibit the agglomeration of $ SnO_{2} $ and it can also shorten the propagation path of $ Li^{+} $ and electrons. The nanostructure of graphene has excellent electrical conductivity and mechanical properties, which can simultaneously buffer the $ SnO_{2} $ volume change, inhibit the pulverization of the $ Fe_{2} $$ O_{3} $, and enhance the electrical contact of the electrode. Consequently, $ SnO_{2} $/$ Fe_{2} $$ O_{3} $/graphene nanocomposite material after 100 cycles displayed an excellent reversible capacity of 1280.2 mA/g at 0.2 A/g, with an outstanding rate capacity of 669.5 mA/g even at 1.0 A/g. After 450 cycles, the nanocomposite material achieved outstanding long-term cycling stability of 1694.9 $ mAg^{−1} $ at 1.0 $ Ag^{−1} $..

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:28

Enthalten in:

Ionics - 28(2022), 5 vom: 17. März, Seite 2213-2226

Sprache:

Englisch

Beteiligte Personen:

Gao, JiongJian [VerfasserIn]
Wu, Kaidan [VerfasserIn]
Feng, Yefeng [VerfasserIn]
Deng, Xiaoqian [VerfasserIn]
Sun, Yukun [VerfasserIn]
Xu, Weiyi [VerfasserIn]
He, Miao [VerfasserIn]

Links:

Volltext [lizenzpflichtig]

BKL:

33.30$jAtomphysik$jMolekülphysik

35.10$jPhysikalische Chemie: Allgemeines

Themen:

Anode
Fe
Lithium-ion battery
O
SnO

Anmerkungen:

© The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022

doi:

10.1007/s11581-021-04401-6

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

OLC2130147038