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铜电流采集器的五秒激光处理及其在离子电池中的应用

Maciej Ratynski¹, Michal Krajewski¹, Tomas Tamulevičius²

¹Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland.

ACS applied engineering materials

|October 2, 2025

概括

铜的五秒激光处理产生纳米结构,提高离子电池的性能. 这种修改通过优化电流收集器和活性物质相互作用来提高能量存储能力和电池寿命.

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:

电流采集器 (CC) 对离子电池 (LiB) 的电化学性能至关重要.
铜CCs的表面粗性改善了与活性材料的粘合,降低了电阻,提高了放电性能和稳定性.

研究的目的:

为了研究用纳米结构修改铜CCs的秒激光处理.
评估这些修改后的CCs对离子电池性能的影响,特别是与活性材料.

主要方法:

铜表面修饰使用femtosecond激光处理来创建准周期的纳米结构.
通过扫描电子显微镜 (SEM) 和粗度测量进行表征.
在离子电池中对改性CC进行电化学测试,使用静电充/放电实验.

主要成果:

激光处理增加了当前收集器和活性材料颗粒之间的接触.
为在循环过程中活性物质体积膨胀而创建了一个缓冲区.
与标准铜相比,修改后的CC显示出更高的特定容量,可循环性和库伦比效率.

结论:

铜CC的五秒激光处理是提高离子电池性能的一种有效方法.
这种技术提高了电化学性能,特别是对于具有显著体积变化的活性材料.
激光处理可以直接集成到现有的电极制造工艺中,以提高LiB性能.

关键词:

目前的收藏家是当前的收藏家.激光治疗激光治疗离子电池是一种离子电池.负电极是一个负电极.是一种.

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