Electrochemical Properties of Rutile TiO2 Nanorod Array in Lithium Hydroxide Solution

Abstract

In this paper, rutile TiO2 nanorod arrays are fabricated by a template-free method and proposed as a promising anode for aqueous Li-ion battery. The as-prepared TiO2 nanorod arrays exhibited reversible Li-ion insertion/extraction ability in aqueous LiOH electrolyte. Moreover, galvanostatic charge/discharge test results demonstrated that the reversible capacity of TiO2 nanorods could reach about 39.7 mC cm−2, and 93.8 % of initial capacity was maintained after 600 cycles at a current density of 1 mA cm−2 (=240 C rate), indicating excellent cycling stability and rate capability.

Nanostructured TiO2 Arrays for Energy Storage

“…Since lithium ions are more easily transported along the c -direction [ 134 , 135 ], rutile TiO 2 can improve the electrochemical performance by adjusting the growth direction of nanoarrays [ 136 , 137 , 138 ]. The c -direction TiO 2 nanorod arrays displayed outstanding cycling performance, with 93% capacity containing after 600 cycles [ 139 ]. Similarly, Dong et al also prepared rutile TiO 2 nanorod arrays growing along the direction of the c -axis.…”

Nanostructured materials and their thin films for Li-ion battery electrodes: synthesis, research and performance

“…TiO 2 has been studied for application in large-scale energy storage because it is a high-capacity and high-current rate tolerance material [8,50,51]. It has various nanostructure forms, such as nanorods, nanotubes, nanofibers and nano squares.…”

“…The use of nanostructured TiO 2 -based materials may be an efficient approach to deal with the main problems of Li-ion batteries [50,51].…”

Good Lithium-Ion Insertion/Extraction Characteristics of a Novel Double Metal Doped Hexa-Vanadate Compounds Used in an Inorganic Aqueous Solution

“…Numerous commercially available Li ion intercalated materials such as LiCoO 2 , LiMn 2 O 4 , LiFePO 4 , LiMnPO 4 , and LiNi 1/3 Co 1/3 Mn 1/3 O are efficiently performing cathode materials for ARLB. The various reported anode materials such as oxides (VO 2 (B), layered γ-LiV 3 O 8 , H 2 V 3 O 8 , V 2 O 5 , and TiO 2 ), polyanionic compounds (TiP 2 O 7 and Na super ionic conductor (Nasicon)-type LiTi 2 (PO 4 ) 3 ), and organic compounds (polypyrrole and polyamides) redox reaction of which are in a narrow potential window of hydrogen evolution. On the basis of earlier studies, a majority of anode materials demonstrated significant capacity fading during galvanostatic charge–discharge cycling along with limited discharge capacity when compared to LIB.…”