阳极
材料科学
法拉第效率
阴极
化学工程
锌
电化学
电极
纳米技术
冶金
化学
工程类
物理化学
作者
Hongyu Lu,Jisong Hu,Yan Zhang,Kaiqi Zhang,Xiaoying Yan,LI He-qi,Jianzhu Li,Yujie Li,Jianlong Zhao,Bingang Xu
标识
DOI:10.1002/adma.202209886
摘要
Abstract Zn powder (Zn‐P)‐based anodes are always regarded as ideal anode candidates for zinc ion batteries owing to their low cost and ease of processing. However, the intrinsic negative properties of Zn‐P‐based anodes such as easy corrosion and uncontrolled dendrite growth have limited their further applications. Herein, a novel 3D cold‐trap environment printing (3DCEP) technology is proposed to achieve the MXene and Zn‐P (3DCEP‐MXene/Zn‐P) anode with highly ordered arrangement. Benefitting from the unique inhibition mechanism of high lattice matching and physical confinement effects within the 3DCEP‐MXene/Zn‐P anode, it can effectively homogenize the Zn 2+ flux and alleviate the Zn deposition rate of the 3DCEP‐MXene/Zn‐P anode during Zn plating–stripping. Consequently, the 3DCEP‐MXene/Zn‐P anode exhibits a superior cycling lifespan of 1400 h with high coulombic efficiency of ≈9.2% in symmetric batteries. More encouragingly, paired with MXene and Co doped MnHCF cathode via 3D cold‐trap environment printing (3 DCEP‐MXene/Co‐MnHCF), the 3DCEP‐MXene/Zn‐P//3DCEP‐MXene/Co‐MnHCF full battery delivers high cyclic durability with the capacity retention of 95.7% after 1600 cycles. This study brings an inspired universal pathway to rapidly fabricate a reversible Zn anode with highly ordered arrangement in a cold environment for micro‐zinc storage systems.
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