"金属中的碳"阳极具有高可加工性,用于金属电池
Yukun Liu1, Xuyang Liu1, Guohua Zhang1
1Institute of New Energy for Vehicles, Shanghai Key Laboratory of Development & Application for Metallic Functional Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China.
ACS applied materials & interfaces
|May 29, 2023
概括
研究人员开发了一种用于金属电池的新型"金属中的碳"阳极,提高了可加工性和稳定性. 这种复合阳极有效地抑制了树的生长,并提高了电网级能源存储的性能.
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:
- 金属电池对电网级储能充满希望.
- 挑战包括处理能力不佳,树生长,以及与金属的副作用.
研究的目的:
- 为了设计一个可加工和稳定的金属阳极.
- 为了提高金属电池的性能,用于储能应用.
主要方法:
- 一个"金属中的碳" (CiM) 阳极是通过将半孔碳粉融入金属中来制造的.
- 用剂合的半孔碳被用来制造一个N-合的CiM (N-CiM) 阳极.
- 复合阳极在对称和全金属电池电池中进行了测试.
主要成果:
- N-CiM阳极表现出增加的硬度 (纯Na的3倍),提高了可加工性,并且可以制成薄薄片.
- N-CiM促进了Na+离子扩散并减少了沉积过量的潜力,从而导致均的沉积.
- 实现了增强的循环稳定性:在对称细胞中800小时,在完整细胞中1000个循环,Coulombic效率为99.8%.
结论:
- N-CiM 阳极设计有效地解决了金属阳极的局限性.
- 这种复合阳极显示出高性能,稳定的金属电池在电网级储能中的巨大潜力.
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