Thin-film electrode based on zeolitic imidazolate frameworks (ZIF-8 and ZIF-67) with ultra-stable performance as a lithium-ion battery anode

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• 作者：Zhen Li ; Xiaoxiong Huang ; Chuanling Sun ; Xiangyu Chen…
• 刊名：Journal of Materials Science
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：52
• 期：7
• 页码：3979-3991
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Materials Science, general; Characterization and Evaluation of Materials; Polymer Sciences; Continuum Mechanics and Mechanics of Materials; Crystallography and Scattering Methods; Classical Mechanics;
• 出版者：Springer US
• ISSN：1573-4803
• 卷排序：52

文摘

Thin-film electrodes were prepared using a one-step drop-casting strategy without polymer binder and carbon black. The electrodes exhibit a thin-layer structure, which is an intriguing architecture for lithium-ion battery applications. A high reversible capacity (335.3 and 311.6 mAh g−1 for ZIF-8 and ZIF-67, respectively), good rate performance, and exceptionally cycling stability (about 95.5% initial capacity was retained after 100 cycles at a high current rate of 5 C) were observed in this study. Such an excellent electrochemical performance of the film electrodes is attributed to the thin-layer architecture, which provides easy access for Li+ ions to permeate the whole electrodes because of the shortened diffusion paths, and also to the unique property of the MOFs without the collapse of its structure.