Mesoporous titania anodes with tunable structural properties and improved electrochemical performance for Li-ion batteries

Wu, Wei1,2; Zhang, Dongke2

2019-09

10.1016/j.micromeso.2019.04.066

MICROPOROUS AND MESOPOROUS MATERIALS   影响因子和分区

1387-1811

1873-3093

Mesoporous titanias (MTs) with controllable structural properties were successfully synthesized following a sol-gel method for improved electrochemical characteristics for lithium-ion batteries (LIBs). Under the experimental conditions studied herein, by carefully considering the synthesis conditions including template type, amount of nitric acid and template, the BET surface area, pore volume and pore size of the resulting MTs could be adjusted in wide ranges of 83 m(2)g(-1) to 170 m(2)g(-1), 0.10 cm(3)g(-1) to 0.46 cm(3)g(-1) and 3.1 nm-12.6 nm, respectively. When used as anode for LIBs, the intrinsic mesoporosity of MTs enabled the large contact interface with electrolyte, thus the substantially reduced resistance of lithium ions, afforded the MTs to possess good cycling performance and rate capability. Herein, a stable specific capacity of 131.2 mA h g(-1) even after 1000 cycles at 1C rate was obtained. The capacity fade rate per cycle was only 0.016%, showing an excellent potential for application in high-power LIBs.

Anode Electrochemical performance Lithium ion batteries Mesoporous titania Soft template

SCI ; EI

英语

第一 ; 通讯

Australian Research Council (ARC) under the ARC Linkage Project Scheme[LP100200136]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000471081000010

ELSEVIER SCIENCE BV

20192006913744

Anodes ; Electrolytes ; Ions ; Mesoporous materials ; Pore size ; Sol-gel process ; Sol-gels ; Structural properties ; Tantalum compounds ; Titanium dioxide

Structural Design:408 ; Electron Tubes:714.1 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Glass:812.3 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol SUSTech, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Univ Western Australia, Ctr Energy, M473,35 Stirling Highway, Crawley, WA 6009, Australia

Wu, Wei,Zhang, Dongke. Mesoporous titania anodes with tunable structural properties and improved electrochemical performance for Li-ion batteries[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2019,285:89-95.

Wu, Wei,&Zhang, Dongke.(2019).Mesoporous titania anodes with tunable structural properties and improved electrochemical performance for Li-ion batteries.MICROPOROUS AND MESOPOROUS MATERIALS,285,89-95.

Wu, Wei,et al."Mesoporous titania anodes with tunable structural properties and improved electrochemical performance for Li-ion batteries".MICROPOROUS AND MESOPOROUS MATERIALS 285(2019):89-95.