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Updated: Jun 28, 2025

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为离子电池配制兼容的非易燃电解质与乙氧 (五) 环三酸

Yutao Liu¹, Jiazheng Lu¹, Xuanlin Gong¹

¹State Key Laboratory of Disaster Prevention and Reduction for Power Grid Transmission and Distribution Equipment, State Grid Hunan Electric Company Limited Disaster Prevention and Reduction Center Changsha Hunan China ytliu_whu@126.com.

|April 11, 2024

概括

乙氧 (五) 循环三酸 (PFPN) 通过减少电解质可燃性而显著提高离子电池的安全性,而不会影响电化学性能. 这种添加剂确保稳定的电极接口可靠的长期循环.

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
化学工程是化学工程的重要组成部分.

背景情况:

离子电池对于现代技术至关重要,但面临着热失控等安全挑战.
开发不可燃电解质是提高电池安全的关键.
在电解质中平衡火焰阻燃性与电化学性能是一个重大障碍.

研究的目的:

评估乙氧 (五) 环三 (PFPN) 作为离子电池的阻燃添加剂.
评估PFPN对电解质可燃性和电化学性能的影响.
为了研究含有PFPN的电解质的界面特性和溶解结构.

主要方法:

半电池的电化学测试 (LFP 下载Li,下载Li) 和一个完整的电池 (LFP 下载Gr).
使用扫描电子显微镜 (SEM) 和X射线光电谱 (XPS) 的表面分析.
光谱分析包括福里埃变换红外线 (FT-IR),拉曼和核磁共振 (NMR).

主要成果:

少量PFPN有效抑制了电解质的易燃性.
PFPN与LiFePO4 (LFP) 阴极和石墨 (Gr) 阳极的兼容性非常好.
电极上形成了稳定的接相,对溶解结构的影响微不足道.
长期循环运行过程中,LFP红细胞和Gr细胞表现出可取的长期循环运行性能.

结论:

PFPN是增强离子电池安全性的有前途的添加剂.
PFPN为平衡阻燃性和电化学性能所面临的挑战提供了一个可行的解决方案.
该研究强调了PFPN在更安全的离子电池中的实际应用潜力.

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