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Silicon Decorated Cone Shaped Carbon Nanotube Clusters for Lithium Ion Battery Anodes
Author(s) -
Wang Wei,
Ruiz Isaac,
Ahmed Kazi,
Bay Hamed Hosseini,
George Aaron S.,
Wang Johnny,
Butler John,
Ozkan Mihrimah,
Ozkan Cengiz S.
Publication year - 2014
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201400088
Subject(s) - materials science , silicon , anode , faraday efficiency , lithium (medication) , graphene , chemical vapor deposition , nanotechnology , carbon nanotube , sputter deposition , chemical engineering , amorphous silicon , lithium ion battery , battery (electricity) , sputtering , optoelectronics , electrode , crystalline silicon , thin film , chemistry , medicine , power (physics) , physics , engineering , quantum mechanics , endocrinology
In this work, we report the synthesis of an three‐dimensional (3D) cone‐shape CNT clusters (CCC) via chemical vapor deposition (CVD) with subsequent inductively coupled plasma (ICP) treatment. An innovative silicon decorated cone‐shape CNT clusters (SCCC) is prepared by simply depositing amorphous silicon onto CCC via magnetron sputtering. The seamless connection between silicon decorated CNT cones and graphene facilitates the charge transfer in the system and suggests a binder‐free technique of preparing lithium ion battery (LIB) anodes. Lithium ion batteries based on this novel 3D SCCC architecture demonstrates high reversible capacity of 1954 mAh g −1 and excellent cycling stability (>1200 mAh g −1 capacity with ≈100% coulombic efficiency after 230 cycles).