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High‐Rate Capability Silicon Decorated Vertically Aligned Carbon Nanotubes for Li‐Ion Batteries
Author(s) -
Gohier Aurélien,
Laïk Barbara,
Kim KiHwan,
Maurice JeanLuc,
PereiraRamos JeanPierre,
Cojocaru Costel Sorin,
Van Pierre Tran
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201104923
Subject(s) - materials science , carbon nanotube , anode , lithium (medication) , nanotechnology , nanoparticle , silicon , carbon fibers , ion , chemical engineering , optoelectronics , electrode , composite material , composite number , medicine , chemistry , physics , quantum mechanics , endocrinology , engineering
The concept of a hybrid nanostructured collector made of thin vertically aligned carbon nanotubes (CNTs) decorated with Si nanoparticles provides high power density anodes in lithium‐ion batteries. An impressive rate capability is achieved due to the efficient electronic conduction of CNTs combined with well defined electroactive Si nanoparticles: capacities of 3000 mAh g −1 at 1.3C and 800 mAh g −1 at 15C are achieved.