机器学习用于设计和全链研究高的离子阴极
Tianxun Cai1,2,3, An Chen4,5, Song Liang1,6
1State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
Advanced materials (Deerfield Beach, Fla.)
|August 16, 2025
概括
一个新的混合流机器学习框架加速了用于离子电池的高氧化物 (HEO) 的发现. 这种由人工智能驱动的方法确定了一种具有出色稳定性和速度性能的新型HEO阴极,使试点规模生产成为可能.
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
- 人工智能的人工智能
背景情况:
- 探索复杂的材料组成,特别是高氧化物 (HEO),是开发先进材料的挑战.
- 加速发现具有优越性质的新材料对于储能应用至关重要.
研究的目的:
- 开发一种新的混合流机器学习 (HFML) 框架,以实现高效的材料发现.
- 为离子电池识别和验证新的高氧化物阴极材料.
主要方法:
- 混合流程机器学习 (HFML) 结合了集体学习,无监督学习和贝叶斯优化.
- 选超过200万份候选人材料.
- 电化学测试,现场X射线衍射 (XRD),试点规模生产和2Ah袋式电池制造.
主要成果:
- 一个新的HEO阴极 (Na$_{0.95}$Li$_{0.06}$Ni$_{0.25}$Cu$_{0.05}$Fe$_{0.1}$Co$_{0.05}$Mn$_{0.44}$Ti$_{0.05}$O$_{2}$) 在1200个循环后具有83.6%的容量保留和高速率性能.
- 确定和验证了影响结构稳定的关键因素.
- 试点规模的生产表明,在600个循环后,2Ah袋式电池的容量保留率为95.0%.
结论:
- 该HFML框架能够有效地探索组合空间,并加速发现先进材料.
- 新发现的HEO阴极对实际的离子电池应用具有显著的前景.
- 这项工作展示了人工智能驱动的完整工作流程,从材料预测到试点规模应用.
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