苯胺辅助层状MoO₃用于构建高性能锌离子电池的研究  

Aniline-Assisted Layered MoO3 for the Construction of High-Performance Zinc Ion Batteries

作　　者：唐洪伟 欧阳琴 李浩然 杨承华 王付鑫 郑得洲 

机构地区：[1]五邑大学应用物理与材料学院,广东 江门

出　　处：《材料科学》2024年第6期873-881,共9页Material Sciences

摘　　要：采用水热法将苯胺(PANI)插入MoO3层间,PANI的插层促进了MoO3的电荷储存,增强了导电性,同时减弱了Zn2+与MoO3主体之间的静电相互作用,加速Zn2+的传输。鉴于这些特性,PANI-MoO3//Zn电池在1 A∙g−1电流条件下表现出超高的比容量352 mAh∙g−1,具有卓越的倍率性能在当电流密度从1 A∙g−1增加到10 A∙g−1时,PANI-MoO3电极仍然保持着133 mAh∙g−1的放电比容量(保持率为40%),而MoO3电极仅有72 mAh∙g−1的放电比容量(保持率为29%)。此外,还具备出色的循环性能,经过1000次循环后,PANI-MoO3//Zn电池的容量保持率比MoO3//Zn电池提高了132%。The PANI was inserted between the MoO3 layers using a hydrothermal method, and the insertion of PANI promoted the charge storage of MoO3 and enhanced the electrical conductivity, while attenuating the electrostatic interactions between Zn2+ and the main body of MoO3 and accelerating the transport of Zn2+. In view of these properties, the PANI-MoO3//Zn battery exhibits an ultra-high specific capacity of 352 mAh∙g−1 at a current of 1 A∙g−1, with excellent multiplicative performance at when the current density is increased from 1 A∙g−1 to 10 A∙g−1 When the current density is increased from 1 A∙g−1 to 10 A∙g−1, the PANI-MoO3 electrode still maintains a discharge specific capacity of 133 mAh∙g−1 (40% retention), while the MoO3 electrode has a discharge specific capacity of only 72 mAh∙g−1 (29% retention). In addition, there is excellent cycling performance, with the PANI-MoO3//Zn battery showing a 132% improvement in capacity retention over the MoO3//Zn battery after 1000 cycles.

关 键 词：锌离子电池 正极材料 三氧化钼 PANI插层 

分 类 号：TM9[电气工程—电力电子与电力传动]