Tungsten oxide nanorod architectures as 3D anodes in binder-free lithium-ion batteries

Abstract

3D WO3/C nanorod architectures have been employed as binder-free composite anodes in lithium ion batteries.

La2O3-coated Li2ZnTi3O8@C as a high performance anode for lithium-ion batteries

“…4 Nevertheless, its small theoretical specic capacity (175 mA h g À1 ) restricts it from being widely used in LIBs with high energy density. Therefore, many new anode materials with large specic capacities, including metallic oxides, [5][6][7][8][9] alloy compounds [10][11][12] and Si-based materials, 13,14 have been researched. Unfortunately, the large volume expansion severely deteriorates the cycling performance of the materials mentioned above.…”

Advances in Electrochemical Energy Devices Constructed with Tungsten Oxide-Based Nanomaterials

“…Cauliflower-like WO 3 decorated with carbon [110] Hydrothermal + firing 67% 0-3.0 V, 50 mA g −1 , 750 mA h g −1 (1st) and 500 mA h g −1 (2nd) 50 mA/g, 50 cycles, 650 mA h g −1 (~Li 5.5 WO 3 ) Carbon-coated 3D WO 3 [111] Template assisted process 60.1% 0-3.0 V, C/20, 10,791 mA h g −1 (1st), 649 mA h g −1 (2nd) -, 500 cycles, 253 mA h g −1 WO 3 *0.33H 2 O@C nanoparticles [112] Low temperature combustion 46.1% 0-3.0 V, 100 mA g −1 , 1543 mA h g −1 (1st) 100 mA g −1 , 200 cycles, 816 mA h g −1 Ultrathin WO 3−x /C nanosheets [113] Acid-assisted one-pot process 39.4% 0-3.0 V, 200 mA g −1 , 1866 mA h g −1 (1st), 893 mA h g −1 (2nd) 200 mA g −1 , 100 cycles, 662 mA h g −1…”

“…It showed much better cycling stability and rate performance than the pure WO 3 (Figure 9d). Herdt et al [111] made WO 3 nanorod arrays encapsulated in a thin layer of carbon. After 200 cycles of charge-discharge at C/20, the vertical arrangement of nanorods were maintained, indicating the outstanding structural stability of this composite.…”

Hydrothermal synthesis and characterization of WO3 nanostructures: Effect of reaction time

“…Tungsten oxide (WO 3 ) as a metal oxide semiconductor with n-type conductivity, indirect and adaptable widebandgap has attracted great interests due to the particular applications in supercapacitors [1], binder-free lithium-ion batteries [2], electrochromic [3], photocatalysis [4], photoelectrocatalyses (PEC) [5], and the environmental devices like a high performance humidity and temperature sensors [6]. Today, cancer is one of the major problems in the world which theoretical and experimental studies are proceeding to solve it [7,8].…”