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用于高能量密度金属电池的无金属聚合物基电流采集器

Mintao Wan^1,2, Ralph Gilles³, Jiri Vacik⁴

¹Helmholtz Institute Ulm (HIU), 89081, Ulm, Germany.

Small (Weinheim an der Bergstrasse, Germany)

|September 13, 2024

概括

研究人员开发了一种轻量级,无金属的聚合物电流收集器,用于金属电池 (LMB). 这项创新显著减少了阳极质量,并提高了电池性能,提高了能量密度和循环寿命.

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
储能储能储能储能储能储能

背景情况:

金属电池 (LMB) 提供高能量密度,但阳极稳定性至关重要.
薄阳极容易碎裂,破坏导电性.
传统的铜电流采集器很重,并且阻碍了统一的涂层.

研究的目的:

为LMBs开发一种轻量级的,无金属的电流采集器.
改善LMBs的特定能量和循环寿命.
为了解决传统铜电流收集器的局限性.

主要方法:

制造一个超轻的,10微米厚的聚合物基电流采集器.
聚合物收集器与铜的比重比较.
使用新型电流采集器对LMB细胞进行电化学测试.

主要成果:

聚合物电流收集器的特定质量为1.03毫克厘米−2,约为铜的11%.
带有聚合物聚合物的LMB实现了448Wh kg-1的特定能量,比铜基电池增加18%.
由于更均的沉积,观察到更长的循环寿命.

结论:

无金属聚合物电流采集器为LMB提供了一个可行的铜替代品.
这一创新大大减少了电池的质量,提高了能量密度.
开发的电流收集器促进了稳定的涂层,延长了电池的使用寿命.

关键词:

阳极是一种极.电池电池电池电池电池电池目前的收藏家是目前的收藏家.金属金属的使用情况聚合物聚合物的高分子.

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