Nitridated TiO2 hollow nanofibers as an anode material for high power lithium ion batteries

Nb-Doped TiO2 Nanofibers for Lithium Ion Batteries

“…17,18,[27][28][29][30] Nevertheless, only few papers report this procedure for application of the materials in LIB. 31 This is astonishing as, for example, Wang et al show that the conductivity, which is the crucial parameter for high performance cycling, can be raised two orders of magnitude by doping mesoporous TiO 2 with Nb. 32 In the present paper we report the synergistic effects of nanostructuring by electrospinning and doping with niobium on TiO 2 anode materials for lithium-storage applications.…”

Nanostructured electrode materials for lithium-ion and sodium-ion batteries via electrospinning

“…As shown in Figs 14a and b, the nanofibers displayed a uniform diameter of~500 nm and consisted of interconnected nanoparticles (50-200 nm). Benefiting from the favorable kinetics based on nanofibers, the material showed excellent cyclability (a high capacity of 250 mA h g −1 after 50 cycles at 1 C) and rate performance (198,137 and 63 mA h g −1 at current densities of 2, 5 and 20 C, respectively) ( Figs 14c and d). Moreover, Aravidan et al [145] reported the applications of electrospun TiNb 2 O 7 nanofibers as insertion-type anode material in Li-ion hybrid electrochemical capacitors with high energy and power density.…”

“…13, nitridation [136,137], metal nanoparticles [138,139], and carbon matrix [140][141][142][143] were usually applied to enhance the electronic conductivity of TiO 2 nanofibers. Han et al [137] produced N-doped TiO 2 hollow nanofibers via one typical electrospinning process and subsequent nitridation process in the NH 3 atmosphere. With the increased electrolyte/electrode interface, the TiO 2 hollow nanofibers were also sheathed with highly conductive TiN/TiO x N y layers.…”

TiO2–B Nanosheets/Anatase Nanocrystals Co‐Anchored on Nanoporous Graphene: In Situ Reduction–Hydrolysis Synthesis and Their Superior Rate Performance as an Anode Material

“…[7] Recently, nanostructured TiO 2 with various architectures has been widely investigated to improve rate capability by reducing the transport path of Li ions and electrons. [4,[8][9][10] However, achieving high electrochemical performances of TiO 2 is still challenging owing to the relatively low electronic conductivity (10 À12 s cm À1 ) of TiO 2 . An effective strategy for enhancing the electronic/ionic conductivity of TiO 2 is to hybridize nanostructured TiO 2 with conductive agents (for example, doping ions, [9] carbon/metal oxide coatings [11,12] and carbon nanotube (CNT)/graphene matrices).…”