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3D混合离子/电子导体支架用于稳定的金属阳极

Xuan Lu^1,2, Xiuxia Zhao³, Shujiang Ding¹

¹School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices (Ministry of Education), State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, People's Republic of China. Dingsj@mail.xjtu.edu.cn.

|January 16, 2024

概括

混合离子/电子导电 (MIEC) 支架通过允许均的离子流和无树沉积来增强金属阳极. 这提高了下一代储能电池的电池稳定性和寿命.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
储能储能储能储能储能储能

背景情况:

由于成本效益, (Na) 金属电池对大规模储能充满希望.
纳米金属阳极面临诸如不稳定的接口,树突增长和体积膨胀等挑战,限制性能和安全性.
稳定Na金属阳极对于商业可行性至关重要.

研究的目的:

本次审查重点关注混合离子/电子导电 (MIEC) 支架的应用,以稳定纳米金属阳极.
它检查了各种设计策略,电化学性能和MIEC支架在调节Na沉积中的机制.
该审查旨在提供对高性能Na金属电池的未来研究和开发的见解.

主要方法:

审查MIEC对Na金属阳极的支架设计的最新进展.
对各种MIEC脚手架配置的电化学性能数据的分析.
对MIEC脚手架上Na沉积行为的机制的研究.

主要成果:

MIEC 支架提供快速的离子和电子运输,促进均的 Na+ 流量.
这些支架促进了无树的Na沉积,大大改善了循环寿命.
即使在高电流密度和面积容量下也观察到更好的性能.

结论:

MIEC 支架是稳定纳米金属阳极的高效策略.
进一步研究MIEC脚手架设计和理解沉积机制是必不可少的.
优化的MIEC支架可以为实用,高性能金属电池铺平道路.

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