Discovering a Dual-Buffer Effect for Lithium Storage: Durable Nanostructured Ordered Mesoporous Co-Sn Intermetallic Electrodes

Park Gwi Ok; Yoon Jeongbae; Shon Jeong Kuk; Choi Yun Seok; Won Jong Gu; Park Su Bin; Kim Kyoung Ho; Kim Hansu; Yoon Won-Sub; Kim Ji Man

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Discovering a Dual-Buffer Effect for Lithium Storage: Durable Nanostructured Ordered Mesoporous Co-Sn Intermetallic Electrodes

机译：发现锂存储的双重缓冲效应：耐用的纳米结构有序介孔Co-Sn金属间电极

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Lithiation-delithiation reactions in Li-ion batteries do exhibit a huge electrochemically driven volume change of the anode material between the lithium-free and lithiated-host states, which results in a gradually fading capacity. Minimizing this volume change of the electrode during cycling is essential to achieve stable electrochemical behavior and thus for innovating design of electrode materials for Li storage. Here, ordered mesoporous CoSn intermetallic anode materials with various Co/Sn atomic ratios are developed. A dual-buffer effect is discovered that accommodates the volume changes in the electrode material by not only repeatedly generating void nanospaces but also by incorporating electrochemically inactive elements. Novel insights into the nanostructural changes of electrode materials during the lithiation-delithiation process are obtained by in operando small angle X-ray scattering. The degrees of volume change and nanoscopic order are found to be highly dependent on the Co contents in the mesoporous CoSn intermetallic anode materials, being possible to achieve a durable nanostructured electrode upon prolonged cycling.

机译：锂离子电池中的锂-脱锂反应确实显示出阳极材料在无锂和锂化主体之间的巨大电化学驱动体积变化，这导致容量逐渐褪色。最小化循环过程中电极的这种体积变化对于实现稳定的电化学行为并因此创新用于锂存储的电极材料的设计至关重要。在此，开发了具有各种Co / Sn原子比的有序介孔CoSn金属间阳极材料。发现了双重缓冲效应，其不仅通过重复产生空隙纳米空间而且通过并入电化学惰性元素来适应电极材料中的体积变化。通过操作中的小角度X射线散射获得了在锂化-脱锂过程中电极材料的纳米结构变化的新颖见解。发现体积变化的程度和纳米级的次序高度依赖于中孔CoSn金属间金属阳极材料中的Co含量，在延长的循环时可能获得耐用的纳米结构电极。

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来源
《Advanced Functional Materials》 |2016年第17期|2800-2808|共9页
作者
Park Gwi Ok; Yoon Jeongbae; Shon Jeong Kuk; Choi Yun Seok; Won Jong Gu; Park Su Bin; Kim Kyoung Ho; Kim Hansu; Yoon Won-Sub; Kim Ji Man;
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Sungkyunkwan Univ, Dept Energy Sci, Suwon 440746, South Korea|Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea;

Sungkyunkwan Univ, Dept Energy Sci, Suwon 440746, South Korea;

Samsung Elect Co Ltd, Samsung Adv Inst Technol, Energy Lab, Suwon 443803, South Korea;

Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea;

Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea;

Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea;

Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea;

Hanyang Univ, Dept Energy Engn, Seoul 133791, South Korea;

Sungkyunkwan Univ, Dept Energy Sci, Suwon 440746, South Korea;

Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea;

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2. In-situ preparation of nitrogen-doped carbon-modified lithium vanadium phosphate fibers with mesoporous nanostructure for lithium energy storage [J] . Cao Zhenheng, Fang Ting, Hou Xueyan, CERAMICS INTERNATIONAL . 2019,第11期

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3. Synergistic effect of amorphous carbon coverage and enlarged voltage window on the superior lithium storage performance of nanostructured mesoporous anatase TiO_2: Emphasis on interfacial storage phenomena [J] . Jingjing Zhang, Tao Huang, Aishui Yu Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2014,第Null期

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4. Electrochemical Characteristics of Co-Sn Alloy Film Prepared by Pulse Electrodeposition Method as Negative Electrode for Lithium Secondary Batteries (2) [C] . Koichi Ui, Shinei Kikuchi, Yoshihiro Kadoma, 第二届亚洲化学电源会议（Second Asian Conference on Electrochem . 2007

机译：脉冲电沉积负极锂二次电池Co-Sn合金膜的电化学特性（2）
5. Intermetallic electrode materials for rechargeable lithium batteries. [D] . Roberts, Gregory Alan. 2002

机译：可充电锂电池的金属间电极材料。
6. Lithium storage mechanisms in purpurin based organic lithium ion battery electrodes [O] . Arava Leela Mohana Reddy, Subbiah Nagarajan, Porramate Chumyim, -1

机译：紫嘌呤基有机锂离子电池电极中的锂存储机制
7. Lithium-Ion Batteries: Mesoporous and Nanostructured TiO2 layer with Ultra-High Loading on Nitrogen-Doped Carbon Foams as Flexible and Free-Standing Electrodes for Lithium-Ion Batteries (Small 48/2016) [O] . Shiyong Chu, Yijun Zhong, Rui Cai, 2016

机译：锂离子电池：中孔和纳米结构TiO2层，用氮掺杂碳泡沫上的超高负载作为锂离子电池的柔性和独立电极（小48/2016）

Discovering a Dual-Buffer Effect for Lithium Storage: Durable Nanostructured Ordered Mesoporous Co-Sn Intermetallic Electrodes

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