五化 (Pentafluoro) 氧) 循环三酸稳定了145Wh的离子囊细胞的电极/电解质接口
Yaqi Liao1,2, Lixia Yuan2, Yan Han2
1Institute of New Energy for Vehicles, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, China.
Advanced materials (Deerfield Beach, Fla.)
|January 23, 2024
概括
五氧三酸 (FPPN) 通过稳定电极接口来提高离子电池的性能. 这种功能性添加剂可提高大规模储能应用中的循环寿命和能量密度.
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:
- 由于资源丰富,离子电池对大规模储能充满希望.
- 传统的电解质会导致电极接口不稳定,限制电池周期寿命.
- 功能性电解质添加剂对于开发稳定的电极接口至关重要.
研究的目的:
- 为了研究五化 () 氧) 环三 (FPPN) 作为一种功能性电解质添加剂.
- 在离子电池中稳定分层氧化物阴极和硬碳阳极的电极接口.
- 为了评估FPPN在实用的离子囊细胞中的性能.
主要方法:
- 合成并使用FPPN作为电解质添加剂.
- 组装的5Ah离子袋式电池用于性能评估.
- 进行了长期循环测试并分析了电化学性能.
主要成果:
- FPPN形成了一种均的,超薄的,富含无机的固体电解质介面 (SEI) 和阴极电解质介面 (CEI).
- 带有FPPN的离子囊细胞在1000个周期后保留4.46Ah (每周期衰减0.01%).
- 实现了高能量密度 (145 Wh kg-1) 和广泛的操作温度范围 (-20 ~ 60 °C).
结论:
- FPPN有效地稳定了离子电池中的电极接口.
- 开发的电解质添加剂显著提高了循环寿命,能量密度和工作温度范围.
- 这项研究突出了合理的电解质设计的潜力,用于实际的离子电池应用.
关键词:
电极/电解质接口 电极/电解质接口电解质添加剂是一种电解质添加剂.高能量密度,高能量密度.五化 (Pentafluoro) 氧化 (Penoxy) 循环三化 (Cyclotriphosphazene) 是一种含有五化的化合物.离子囊细胞是一种离子囊细胞.更多相关视频
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