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| 1 | Interfacial adsorption-insertion mechanism induced by phase boundary toward better aqueous Zn-ion battery显示文摘Biphasic and multiphasic compounds have been well clarified to achieve extraordinary electrochemical properties as advanced energy storage materials.Yet the role of phase boundaries in improving the performance is remained to be illustrated.Herein,we reported the biphasic vanadate,that is,Na_(1.2)V_(3)O_(8)/K_(2)V_(6)O_(16)·1.5H_(2)O(designated as Na0.5K0.5VO),and detected the novel interfacial adsorption-insertion mechanism induced by phase boundaries.Firstprinciples calculations indicated that large amount of Zn^(2+)and H^(+)ions would be absorbed by the phase boundaries and most of them would insert into the host structure,which not only promote the specific capacity,but also effectively reduce diffusion energy barrier toward faster reaction kinetics.Driven by this advanced interfacial adsorption-insertion mechanism,the aqueous Zn/Na_(0.5)K_(0.5)VO is able to perform excellent rate capability as well as long-term cycling performance.A stable capacity of 267 mA h g^(-1)after 800 cycles at 5 A g^(-1)can be achieved.The discovery of this mechanism is beneficial to understand the performance enhancement mechanism of biphasic and multiphasic compounds as well as pave pathway for the strategic design of highperformance energy storage materials. | Lutong Shan Yiren Wang Shuquan Liang Boya Tang Yongqiang Yang Ziqing Wang Bingan Lu Jiang Zhou | 2021 | InfoMat2021，3，9： | 8 |
| 2 | 纺织基柔性锌离子电池的研究进展显示文摘水系锌离子电池(ZIBs)在安全性和规模化生产应用方面具有广阔的前景,但正极和负极的能量密度和循环寿命较低阻碍了ZIBs的实际应用。而以纺织材料为基材的电极具有高导电性、化学稳定性和易与其他活性物质负载的特点,能有效解决上述问题。该文以纺织视角阐述现阶段纺织类柔性锌离子电池的研究进展,以纤维状锌离子电池和平面结构型锌离子电池两个维度对柔性锌离子电池进行总结,明确两种类型柔性锌离子电池正极材料的反应动力学与电极结构、表面特性及活性材料复合条件的构效关系。最后,针对纺织基锌离子电池发展存在的问题进行说明,并对未来需要攻克的重点难点进行分析及展望。 | 孙江东 许帅 孙爽 郑贤宏 聂文琪 徐珍珍 | 2023 | 精细化工2023，40，4： | 0 |
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