Polyoxometalate-Based Metal-Organic Framework on Carbon Cloth with a Hot-Pressing Method for High-Performance Lithium-Ion Batteries
Zhang, AM (Zhang, A-Man)[ 1 ] ; Zhang, M (Zhang, Mi)[ 1 ] ; Lan, D (Lan, Di)[ 2 ] ; Wang, HN (Wang, Hai-Ning)[ 1 ] ; Tang, YJ (Tang, Yu-Jia)[ 1 ] ; Wang, XL (Wang, Xiao-Li)[ 1 ] ; Dong, LZ (Dong, Long-Zhang)[ 1 ] ; Zhang, L (Zhang, Lei)[ 1 ] ; Li, SL (Li, Shun-Li)[ 1 ]*（李顺利）; Lan, YQ (Lan, Ya-Qian)[ 1 ]*（兰亚乾）
[ 1 ] Nanjing Normal Univ, Jiangsu Collaborat Innovat Ctr Biomed Funct Mat, Sch Chem & Mat Sci, Jiangsu Key Lab New Power Batteries, Nanjing 210023, Jiangsu, Peoples R China
[ 2 ] Faw Jilin Automobile Co Ltd, FAWMC, Jilin 132013, Jilin, Peoples R China
INORGANIC CHEMISTRY，201809,57(18), 11726-11731
Recently, development of a new type of anode material for lithium-ion batteries that possesses multielectron reaction, sufficient charge transfer, and restricted volume suppression has been considered a huge challenge. Herein, we find a simple hot-pressing method to incorporate polyoxometalate (POM)-based metal-organic frameworks (MOFs) onto three-dimensionally structured carbon cloth (CC), denoted as HP-NENU-5/CC, which immobilizes POMs into the MOFs avoiding the leaching of POMs and employs HP-NENU-5/CC as a flexible, conductive, and porous anode material. The HP-NENU-5/CC anode materials show outstanding electrochemical performance, exhibiting high reversible capacity (1723 mAh g(-1) at 200 mA g(-1)), high rate capability (1072 mAh g(-1) at 1000 mA g(-1)), and superior cycling stability (1072 mAh g(-1) at 1000 mA g(-1) after 400 cycles). Most importantly, the performance of HP-NENU-5/CC is the best among those of all reported POMs and MOF-based materials. In addition, we perform a comparative study for active materials coated on a two-dimensional current collector and CC, and our experimental results and analysis prove that the active material coated on CC does enhance the electrochemical performance.