MnOx/SWCNT macro-films as flexible binder-free anodes for high-performance Li-ion batteries
2013; Elsevier BV; Volume: 2; Issue: 5 Linguagem: Inglês
10.1016/j.nanoen.2012.12.009
ISSN2211-3282
AutoresJinwen Qin, Qing Zhang, Zeyuan Cao, Xin Li, Changwen Hu, Bingqing Wei,
Tópico(s)Advanced Battery Materials and Technologies
ResumoWe present a low-temperature synthetic route toward the binder-free MnOx (the mixture of Mn3O4 and MnO2)/single-walled carbon nanotube (SWCNT) macro-films, which could be employed as the single component of anodes in Li-ion batteries. Morphological characterizations reveal that the interconnected network of SWCNT macro-films in the free-standing MnOx/SWCNTs intrinsically possesses high electrical conductivity and exhibits good mechanical adhesion on Cu foils (current collectors). The MnOx nanoparticles directly grown onto the external surface of SWNT macro-films have very strong bonds with the nanotubes, avoiding agglomeration during their electrochemical operations. These MnOx/SWNT macro-films are evidenced to possess an excellent capacity of ∼1000 mAh g−1, showing promise as flexible anode materials for light weight and high performance Li-ion batteries.
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