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通过用于金属电池的二维A型分子面膜有效地减轻树

Suyang Wang¹, Peng Wang¹, Yingying Deng¹

¹College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China.

Journal of colloid and interface science

|August 28, 2024

概括

在聚烯分离器上采用了一种全新的二维A型分子覆盖,大大提高了离子电池的安全性和性能. 这种设计在1000个循环后将容量保留率提高到70%,有效地抑制了树的生长.

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:

离子电池面临着不均沉积的挑战,导致树的生长,性能降低和安全风险.
确保高安全水平对于电池储能系统的广泛采用至关重要.

研究的目的:

为离子电池开发一种新的分离器设计,以提高安全性和性能.
调查二维A型分子覆盖在减轻树形成和改善循环寿命方面的有效性.

主要方法:

用二维A型分子覆盖聚烯分离器.
通过循环测试评估离子电池中修改分离器 (2D-A-PP) 的性能.
评估隔离器的容量保留和机械性能.

主要成果:

2D-A-PP分离器在1000个循环后保持了70%的容量保留,显著优于标准PP分离器 (在500个循环后低于50%).
分子涂层改善了聚烯分离器的机械性能,提高了电池的整体安全性.
修改后的分离器有效地重新分配了离子,抑制了树突的生长.

结论:

新的2D A型分子覆盖聚烯分离器为改善离子电池安全性和寿命提供了一个有前途的解决方案.
该设计为开发具有增强的热稳定性,多孔性,电解质亲和性和树抑制的先进电池分离器提供了一种新方法.

关键词:

树突是的树突.金属阳极是一种金属阳极.分子的分子.分离器分离器分离器分离器分离器两维材料是一种二维材料.

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