稳定金属阳极的稳定策略 面向无树的硫电池
Zhiyuan Liu1, Luyang Sun2,3, Xianyu Liu4
1School of Bailie Mechanical Engineering, Lanzhou City University, Lanzhou, 730070, China.
Chemistry (Weinheim an der Bergstrasse, Germany)
|August 16, 2024
概括
硫电池看起来很有前途,但由于多硫化物和树突,它们面临容量衰减和安全问题. 这篇评论详细介绍了金属阳极的挑战和稳定策略,以提高Li-S电池的性能.
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:
- 硫 (Li-S) 电池具有高能量密度和低成本,使其成为下一代能源存储的吸引力.
- 关键的挑战包括聚硫化物运输产能下降以及与树形成相关的安全问题.
- 金属阳极至关重要,但受到异质沉积,不稳定的固体电解质介相 (SEI) 层和体积膨胀的影响.
研究的目的:
- 审查Li-S电池的当前问题,重点关注金属阳极的挑战.
- 综合总结Li-S电池系统中与阳极相关的问题.
- 讨论 Li-S 电池中 Li 阳极稳定策略的进展.
主要方法:
- 对Li-S电池技术当前研究的文献综述.
- 分析与金属阳极性能相关的挑战,包括沉积,SEI稳定性和体积变化.
- 对阳极的各种稳定策略的分类和讨论.
主要成果:
- 确定容量衰减和安全问题是Li-S电池的主要障碍.
- 详细介绍了阳极的具体挑战,例如不均的沉积和SEI层的不稳定性.
- 总结了稳定技术的进展,包括物理方法,电解质优化,保护层和电流收集器设计.
结论:
- 稳定金属阳极对于克服Li-S电池的局限性至关重要.
- 目前正在进行的研究重点是提高阳极稳定性和电池整体性能的各种策略.
- 未来的方向包括解决剩余的挑战,以实现Li-S电池技术的全部潜力.
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