调节亲和力/排斥水平,以抑制聚硫化物在硫电池中的穿效应
Shengtao Niu1, Xiaoya Kang1, Lei Zhao1
1Energy Storage Institute of Lanzhou University of Technology, School of Green Energy and Energy Storage, State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu, China.
Advances in colloid and interface science
|August 3, 2025
概括
硫电池在储能方面表现有前途,但却受到"航天飞机效应"的影响. 通过亲和力或排斥来控制材料-聚硫化物相互作用,可以抑制这种效应以提高电池性能.
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:
- 对于高能量密度和成本效益高的储能设备的需求日益增加,特别是对于长途车辆,推动了对下一代电池的研究.
- 硫 (Li-S) 电池是强大的候选者,因为它们的理论能量密度很高.
- -S电池的商业化受到"穿效应"的阻碍,这是由以太电解质中的可溶性多硫化物引起的.
研究的目的:
- 探索抑制硫电池中穿效应的策略.
- 将电池材料和多硫化物之间的相互作用分类和分析为亲和或排斥.
- 概述利用这些交互来提高Li-S电池性能的方法和挑战.
主要方法:
- 调查穿效应机制,其中涉及聚硫化物溶解,扩散和寄生反应与金属阳极.
- 将材料-聚硫化物相互作用分为亲和力和排斥力.
- 分析这些相互作用如何影响多硫化物转化,扩散和可溶性.
主要成果:
- 通过抑制聚硫化物溶解,扩散和寄生反应,可以减轻穿效应.
- 材料-聚硫化物相互作用,特别是亲和力和排斥力,是抑制穿效应的关键.
- 这些相互作用可以有效地催化聚硫化物转化,抑制扩散,并降低溶解度.
结论:
- 调节材料聚硫化物相互作用是克服硫电池中穿效应的关键策略.
- 亲和和排斥相互作用都提供了提高Li-S电池性能的途径.
- 对这些相互作用的进一步研究对于Li-S储能系统的商业可行性至关重要.
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