材料科学
阴极
石墨烯
碳纳米管
电化学
电池(电)
化学工程
水溶液
球磨机
锂(药物)
电导率
纳米技术
锂离子电池
复合材料
电极
化学
功率(物理)
物理化学
内分泌学
工程类
物理
医学
量子力学
作者
Si Xin,Xiaoping Dong,Dasol Jin,Bin Pang,Dandan Su
标识
DOI:10.1016/j.jallcom.2023.172115
摘要
Aqueous zinc-ion batteries (RZIBs) are one of the favorable complementary candidates for lithium-ion batteries. The cathode material determines the whole performance. Herein, β-MnO2/3D GPE-CNTs hybrid cathode materials were fabricated by intermittent high-energy vibratory ball milling method. It delivered a higher specific discharge capacity of 313.31 mAh·g−1 and excellent cycling stability compared to the bare β-MnO2 sample. Morphological characterizations revealed that the enhanced electrochemical performance of the β-MnO2/3D GPE-CNTs hybrid was mainly attributed to the three-dimensional framework structure, large specific surface area, and good conductivity of GPE-CNT, as well as its resulting particle refinement with uniform dispersion and partial suppression of grain amorphization. This article provided a new sight of fabricating Mn-based materials/conducting carbon material hybrid for good performance cathode in RZIBs.
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