Nano-Micro Letters ( IF 26.6 ) Pub Date : 2021-07-23 , DOI: 10.1007/s40820-021-00682-8 Yuxiang Hu 1 , Hongjiao Huang 2 , Deshuang Yu 2 , Xinyi Wang 1 , Linlin Li 2 , Han Hu 3 , Xiaobo Zhu 1 , Shengjie Peng 2 , Lianzhou Wang 1
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A binder-free and freestanding all-climate cathode FeS2@C/CNT in aluminum-ion batteries working from −25 to 50 °C with exceptional flexibility, enhanced capacity retention (above 117 mAh g−1) and rate capacity even at a low temperature of −25 °C.
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High rate capacity (above 151 mAh g−1 at 2 A g−1) and robust long-term stability (above 80 mAh g−1 after 2,000 cycles at 1 A g−1) at room temperature.
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DFT simulation verifies that the well-designed structure restricts FeS2 pulverization and facilitates the kinetic process of active ion.
中文翻译:
基于无粘合剂 MOF 衍生 FeS2@C/CNT 阴极的全气候铝离子电池
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铝离子电池中的无粘合剂且独立的全气候正极 FeS 2 @C/CNT,工作温度范围为 -25 至 50 °C,具有出色的柔韧性、增强的容量保持率(高于 117 mAh g -1)和倍率容量,即使在-25°C的低温。
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室温下的高倍率容量(在 2 A g -1 下超过 151 mAh g -1 )和稳健的长期稳定性(在 1 A g -1 下 2,000 次循环后超过 80 mAh g -1)。
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DFT模拟验证了精心设计的结构限制了FeS 2的粉碎,促进了活性离子的动力学过程。