Two-dimensional Ni-MOF as a high performance anode material for lithium ion batteries

• Published in: Inorganic chemistry communications Vol. 158; p. 111511
• Main Authors: Zhang, Lin, Zhang, Xiaofei, Han, Diandian, Wu, Shuangyan
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.12.2023
• Subjects: Anode; Layer structure; Metal organic frameworks; Two-dimensional; Layer structure; Metal organic frameworks; Anode; Two-dimensional
• ISSN: 1387-7003; 1879-0259
• DOI: 10.1016/j.inoche.2023.111511

A new type of 2D Ni-MOF was presented as high-performance anode materials for LIBs. The layer structure provides free channels between inter-layers for rapid Li+ diffusion. Strikingly, the anode delivers a high capacity of 765 mAh/g at 100 mA/g and a capacity retention of 97.9% after 140 cycles. [Display omitted] •A new type of 2D Ni-MOF was presented as anode material for LIBs.•The layer structure provides free channels between inter-layers for rapid Li+ diffusion.•The capacity retention reaches 97.9 % after 140 cycles at 100 mA g−1. Metal organic frameworks (MOFs) have attracted extensive attention as electrode materials for use in Li-ion batteries owing to their diverse structural chemistry. Herein, a new type of two-dimensional (2D) Ni-MOF is presented as a high-performance anode material for rechargeable Li-ion batteries. The layered structure endows the Ni-MOF with free channels between the inter-layers, which is beneficial to Li+ ion diffusion, making it stand out from a crowd of porous 3D molecular materials. Strikingly, when tested at 100 mA g−1, Ni-MOF demonstrates a high capacity of 765 mA h g−1. The anode material also delivers superior rate performance and good cyclability. After being charged/discharged to high rates of 2 A/g, the anode could restore its initial capability at 100 mA g−1.