Si阳极的界面工程是通过对Co进行限制性注,以达到初始高库伦比效率
Yuanyuan Han1, Haoyu Fu1, Guihuan Chen1
1College of Physics, Weihai Innovation Research Institute, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China. liqiang@qdu.edu.cn.
Chemical communications (Cambridge, England)
|December 5, 2023
概括
一种新型的-多层薄膜增强了电池的阳极. 这种结构提高了稳定性和导电性,导致高效率和容量保留.
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
- 纳米技术 纳米技术
背景情况:
- 阳极为离子电池提供了高的理论容量,但其循环稳定性不佳.
- 开发有效的策略来缓解阳极降解对于下一代能源存储至关重要.
研究的目的:
- 为改进的阳极制造和表征一种新的- (Si/Si-Co) 多层薄膜.
- 为了研究Si/Si-Co阳极的结构稳定性和电化学性能.
主要方法:
- 交替磁铁子喷射被用来创建Si/Si-Co多层薄膜,并限制了化.
- 使用操作磁力测量来评估在电化学循环过程中Si-Co层的稳定性.
- 评估了电化学性能,包括初始库伦比效率和容量保留.
主要成果:
- 制造的Si/Si-Co多层薄膜证明了成功的金属兴奋剂和表面涂层.
- 操作磁力测量证实了整个循环过程中Si-Co层的结构稳定性.
- Si/Si-Co 阳极表现出极好的初始库伦比效率93.4%,并且在 100 个循环后保留了 85.07% 的容量.
结论:
- /Si-Co多层结构有效地保护了阳极,并增强了电子导电.
- 这种创新的阳极设计显著提高了阳极的电化学性能和循环稳定性.
- 这些发现为开发先进电池的高性能基阳极提供了有希望的方法.
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