尖晶石
双金属片
材料科学
多孔性
水溶液
阴极
离子
电化学
化学工程
阳极
热液循环
电极
冶金
复合材料
化学
物理化学
有机化学
工程类
金属
作者
Yujuan Wu,Yingying Hu,Pei Zhao,Huihui Zhang,Ruilin Wang,Yiyang Mao,Mengbo Wang,Ziwen Yang,Xinlei Zhang,Kun Ding,Yong Guo,Qianjun Zhang,Lianyi Xu,Baofeng Wang
标识
DOI:10.1016/j.ssi.2024.116575
摘要
Designing multifunctional cathode materials is essential to address the critical issues of poor cycle stability and sluggish reaction kinetics in the aqueous zinc-ion batteries (AZIBs). Here, the spinel-type bimetallic MnCo2O4 with a porous, layered, irregular cubic structure was synthesized using hydrothermal method, which was employed as a cathode material for high performance AZIBs. The design strategy involving bimetallic oxides offers more electrochemically active sites than monometallic oxides. Simultaneously, the unique porous structure of MnCo2O4 facilitates faster ions and electrons transport, which alleviates the problems of volume expansion and structural collapse that occurring in the cathode material during cycling. As a result, the MnCo2O4 electrode exhibits superior zinc storage performance with a high reversible specific capacity of 332.1 mAh g−1 and excellent cycle stability after 65 cycles at a current density of 0.3 A g−1.
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