氰化物
催化作用
锌
碘
电池(电)
材料科学
无机化学
纳米技术
化学工程
化学
冶金
物理
有机化学
工程类
功率(物理)
量子力学
作者
Hongyang Zhao,Deshun Yin,Li Zhao,Hongyang Zhao
标识
DOI:10.1002/cnma.202400004
摘要
Iodine is a promising candidate among the cathode materials in zinc‐ion battery. However, iodine cathode suffers from serious shuttle effect by spontaneous generated polyiodide species. In this work, we developed a CoNi(CN)4/CNT interlayer to prevent shuttle effect by adsorption‐catalysis process. The adsorption of the iodine species on CoNi(CN)4/CNT interlayer is justified by UV‐vis spectroscopy and X‐ray photoelectron spectroscopy, where the concentration of polyiodides is significantly reduced, and the binding energy of cobalt, nickel, and nitrogen is remarkably reduced by binding with polyiodides. The zinc‐iodine dual‐plating battery shows significantly higher areal capacity and cycle stability with CoNi(CN)4/CNT. Moreover, battery with impressive areal capacity of 3.6 mAh cm‐2 and negligible fading over 100 cycles is also achieved, which outperforms state‐of the art literatures on zinc‐iodine batteries.
科研通智能强力驱动
Strongly Powered by AbleSci AI