精确的离子电池SiO阳极的预化,以提高初始库伦比效率
Cuicui Hu1, Minghao Zhang1, Wenbo Zhou1
1School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China. cy.liu@gdut.edu.cn.
概括
我们开发了一种使用化 (LiF) 的球磨法方法,用于氧化 (SiO2) 阳极的预化. 这种技术最大限度地减少了的损失,提高了离子电池基阳极的性能.
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:
- 氧化 (SiO2) 阳极对高容量离子电池具有前景.
- 过早的降解和容量衰减限制了SiO2阳极的实际应用.
- 在初始循环期间,活跃的损失是一个主要的挑战.
研究的目的:
- 为SiO2阳极开发一个有效的预化策略.
- 为了减轻活跃的损失,提高电化学性能.
- 为高性能基阳极建立一种新的方法.
主要方法:
- 一种使用化 (LiF) 进行球磨的新型预化方法.
- 在阳极上形成的固体电解质介相 (SEI) 层的表征.
- 电化学测试用于评估电池性能.
主要成果:
- 在SiO2阳极上成功形成富含化 (LiF) 的SEI层.
- 在最初的循环中显著减少了活跃的消耗.
- 证明了卓越的电化学性能,包括提高容量保留和循环寿命.
结论:
- 建议使用LiF的球磨先化方法是准确和有效的.
- 富含LiF的SEI层在减少损失方面发挥着至关重要的作用.
- 这项研究为推进下一代离子电池的基于的阳极提供了可行的途径.
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