通过第三方MOF-碳酸盐系统为LIBs提供高压NMC
Mehmet Feryat Gülcan1, Neslihan Yuca1,2
1Enwair Energy Technologies Corporation, Sariyer, 34485, Istanbul, Türkiye.
ChemSusChem
|November 28, 2024
概括
碳酸作为sol-gel合成中的源,为高压离子电池提供稳定的阴极材料,性能优于传统的酸方法.
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:
- 储能系统,特别是离子电池,对于现代技术至关重要.
- 开发正极活性材料,如NCM111,是关键的研究重点.
- 现有的NCM111合成方法通常使用水溶性来源,如酸或氧化.
研究的目的:
- 研究使用碳酸作为源在合成NCM111阴极材料的sol-gel工艺中的.
- 为了评估高压循环条件下与碳酸合成的NCM111的电化学性能.
主要方法:
- 使用sol-gel工艺合成三元金属有机框架 (MOF) 前体.
- 碳酸被用作的来源,不同于传统的水溶性盐.
- 合成材料经过高压循环,以评估其稳定性和性能.
主要成果:
- 碳酸的使用导致了由于其更高的热稳定性而形成了短距离有序的表面层.
- 用碳酸 (S6) 合成的NCM111样本在高压下表现出稳定的循环性能.
- 这种性能优于用酸 (R) 制造的样品.
结论:
- 碳酸是一种可行且有效的来源,可通过sol-gel合成稳定的NCM111阴极材料.
- 使用碳酸的sol-gel方法在粒子均性和热分解方面具有优势.
- 这种方法为开发高级离子电池的高性能阴极材料提供了一个有希望的替代方案.
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