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Creation of Nanosized Holes in Graphene Planes for Improvement of Rate Capability of Lithium-Ion Batteries Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Journal Nanotechnology
ISSN: 0957-4484 , E-ISSN: 1361-6528
Output data Year: 2018, Volume: 29, Article number : 134001, Pages count : 9 DOI: 10.1088/1361-6528/aaa99f
Tags holey graphene, graphite oxide, hot concentrated H2SO4 treatment, Li-ion battery
Authors Bulusheva L.G. 1,2 , Stolyarova S.G. 1 , Chuvilin A.L. 3,4 , Shubin Yu.V. 1,2 , Asanov I.P. 1,2 , Sorokin A.M. 5 , Mel’gunov M.S. 2,5 , Zhang Su 6 , Dong Yue 6 , Chen Xiaohong 6 , Song Huaihe 6 , Okotrub A.V. 1,2
Affiliations
1 Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
2 Novosibirsk State University, 2 Pirogova Str., 630090 Novosibirsk, Russia
3 CIC nanoGUNE Consolider, E-20018 San Sebastian, Spain
4 IKERBASQUE, Basque Foundation for Science, E-48013 Bilbao, Spain
5 Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, 5 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
6 State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China

Funding (1)

1 Russian Science Foundation 16-13-00016

Abstract: Holes with an average size of 2–5 nm have been created in graphene layers by heating of graphite oxide (GO) in concentrated sulfuric acid followed by annealing in an argon flow. The hot mineral acid acts simultaneously as a defunctionalizing and etching agent, removing a part of oxygen-containing groups and lattice carbon atoms from the layers. Annealing of the holey reduced GO at 800 °C–1000 °C causes a decrease of the content of residual oxygen and the interlayer spacing thus producing thin compact stacks from holey graphene layers. Electrochemical tests of the obtained materials in half-cells showed that the removal of oxygen and creation of basal holes lowers the capacity loss in the first cycle and facilitates intercalationdeintercalation of lithium ions. This was attributed to minimization of electrolyte decomposition reactions, easier desolvation of lithium ions near the hole boundaries and appearance of multiple entrances for the naked ions into graphene stacks.
Cite: Bulusheva L.G. , Stolyarova S.G. , Chuvilin A.L. , Shubin Y.V. , Asanov I.P. , Sorokin A.M. , Mel’gunov M.S. , Zhang S. , Dong Y. , Chen X. , Song H. , Okotrub A.V.
Creation of Nanosized Holes in Graphene Planes for Improvement of Rate Capability of Lithium-Ion Batteries
Nanotechnology. 2018. V.29. 134001 :1-9. DOI: 10.1088/1361-6528/aaa99f publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Nov 21, 2017
Accepted: Jan 22, 2018
Published online: Feb 12, 2018
Published print: Apr 3, 2018
Identifiers:
publication_identifier.wos_identifier_type WOS:000424925300001
publication_identifier.scopus_identifier_type 2-s2.0-85042278146
publication_identifier.rinz_identifier_type 35530978
publication_identifier.accession_number_identifier_type 2018:2180499
publication_identifier.chemical_accession_number_identifier_type 171:329226
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