リチウム金属負極の性能向上ために織物テンプレート法で特異構造な銅集電体の開発

采用纺织模板法开发结构独特的铜集流体，提高锂金属负极性能

• 批准号: 22KJ0030
• 负责人: 朱 瑞傑
• 金额: $ 1.41万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2023
• 资助国家: 日本
• 起止时间: 2023-03-08 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22KJ0030/
• 关键词: Performance improvement; Limited help; Cathode optimization; Publications; channel structures; aligned cotton fibers; lithiophilic; mass-transfer resistance; alleviated inactive Li; enhanced performance

The use of collectors with a hierarchically porous structure can optimize the deposition behavior of lithium (Li) metal to some extent. However, in practical studies, Li metal was found to be difficult to be deposited into the upright channel as expected, in its place, the Li metal exhibits a different deposition behavior than we expected. When the channel's diameter is large (greater than 20 μm), lithium metal typically accumulates near the tube wall opening. Conversely, when the diameter is small (less than 5 μm), lithium metal deposits solely on the current collector's upper surface. Even after incorporating materials that promote underpotential deposition (UPD) or irregular nucleation of lithium metal (such as silver) into the metal framework, lithium metal will amass near the channel entrance, creating an unsupported lithium layer. This occurs because the initially deposited lithium metal on the upper surface acts as a "nucleus," encouraging subsequent deposition primarily on the electrode surface. The resulting lithium metal plating obstructs ion transport into the channel, causing deposition to predominantly occur in the 3D structure's shallow region. Moreover, we find that the use of such materials can improve the performance of the sulfur cathode in lithium-sulfur batteries very well. The porous metal possesses an exceptional capacity to catalyze the cathodic reactions, while its multi-level porous architecture effectively enhances the discharge performance of high-capacity lithium-sulfur batteries.

使用具有分级多孔结构的集流体可以在一定程度上优化锂（Li）金属的沉积行为，然而，在实际研究中，发现Li金属很难像预期那样沉积到直立通道中。 ，当通道直径较大（大于 20 μm）时，锂金属表现出与我们预期不同的沉积行为，而当直径较小（小于 5 μm）时，锂金属通常会在管壁开口附近聚集。 μm），锂金属仅沉积在集电器的上表面，即使在将促进锂金属欠电位沉积（UPD）或不规则成核的材料（例如银）纳入金属框架后，锂金属也会在通道入口附近聚集。产生无支撑的锂层是因为最初沉积在上表面上的锂金属充当“核”，从而促进了随后主要沉积在电极表面上的锂金属镀层。阻碍离子传输到通道中，导致沉积主要发生在3D结构的浅层区域。此外，我们发现使用这种材料可以很好地提高锂硫电池中硫阴极的性能。其优异的阴极反应催化能力，同时其多级多孔结构有效增强了高容量锂硫电池的放电性能。

项目成果

High strength hydrogels enable dendrite-free Zn metal anodes and high-capacity Zn?MnO2 batteries via a modified mechanical suppression effect

高强度水凝胶<i>通过改进的机械抑制效应可实现无枝晶的锌金属阳极和高容量 Zn?MnO₂ 电池

• DOI: 10.1039/d1ta10079c
• 发表时间: 2022
• 影响因子: 11.9
• 作者: Zhu Ruijie;Yang Huijun;Cui Wei;Fadillah Laras;Huang Tianhong;Xiong Zetao;Tang Chunmei;Kowalski Damian;Kitano Sho;Zhu Chunyu;King Daniel R.;Kurokawa Takayuki;Aoki Yoshitaka;Habazaki Hiroki
• 通讯作者: Habazaki Hiroki

Improved Anisotropic Thermal Transfer Property of Form-Stable Phase Change Material Supported by 3D Bionic Porous Copper

3D仿生多孔铜支持形态稳定相变材料改善各向异性热传递性能

• DOI: 10.1021/acssuschemeng.2c06396
• 发表时间: 2023
• 作者: Guo Pan;Sheng Nan;Zhu Ruijie;Zhu Chunyu;Rao Zhonghao
• 通讯作者: Rao Zhonghao

Anode/Cathode Dual‐Purpose Aluminum Current Collectors for Aqueous Zinc‐Ion Batteries

用于水性锌离子电池的阳极/阴极双用途铝集流体

• DOI: 10.1002/adfm.202211274
• 发表时间: 2022
• 影响因子: 19
• 作者: Zhu Ruijie;Xiong Zetao;Yang Huijun;Wang Ning;Kitano Sho;Zhu Chunyu;Aoki Yoshitaka;Habazaki Hiroki
• 通讯作者: Habazaki Hiroki

Sustainable high-energy aqueous zinc-manganese dioxide batteries enabled by stress-governed metal electrodeposition and fast zinc diffusivity

通过应力控制金属电沉积和快速锌扩散率实现可持续高能水性锌二氧化锰电池

• DOI: 10.1039/d2ee03777g
• 发表时间: 2023
• 作者: Yang Huijun;Zhu Ruijie;Yang Yang;Lu Ziyang;Chang Zhi;He Ping;Zhu Chunyu;Kitano Sho;Aoki Yoshitaka;Habazaki Hiroki;Zhou Haoshen
• 通讯作者: Zhou Haoshen

A lithiophilic carbon scroll as a Li metal host with low tortuosity design and “Dead Li” self-cleaning capability

亲锂碳卷轴作为锂金属主体，具有低曲折设计和“死锂”自清洁能力

• DOI: 10.1039/d1ta02491d
• 发表时间: 2021
• 影响因子: 11.9
• 作者: Zhu Ruijie;Yang Huijun;Fadillah Laras;Xiong Zetao;Kowalski Damian;Zhu Chunyu;Kitano Sho;Aoki Yoshitaka;Habazaki Hiroki
• 通讯作者: Habazaki Hiroki