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单立式堆叠的薄膜固态电池

Moritz H Futscher¹, Luc Brinkman², André Müller²

¹Laboratory for Thin Films and Photovoltaics, Empa-Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600, Dübendorf, Switzerland. moritz.futscher@empa.ch.

Communications chemistry

|June 5, 2023

概括

研究人员开发了新的单立体叠加薄膜离子电池. 这种设计显著提高了对电动飞机和无人机等苛刻应用的功率能力.

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:

目前的离子电池功率受到阴极厚度的限制,阻碍了电力运输的电气化.
具体功率仅限于几千瓦/千克-1,对于先进的应用来说不够.

研究的目的:

介绍一款用于单立体叠加薄膜电池的新型设计,以提高电池功率.
为了展示这个新电池架构的概念验证.

主要方法:

用阳极,固体氧化物电解质和氧化物阴极制造单体堆叠的薄膜细胞.
堆叠的细胞的实验循环.
使用热电模型进行性能预测.

主要成果:

用两个叠加的薄膜细胞演示了一个功能性概念验证.
电池在6和8V之间实现了超过300个循环.
预测的特定能量超过250Wh kg-1在C-率60以上.

结论:

单体叠加的薄膜电池设计有可能将功率提高十倍.
这项技术可以实现几十万千瓦-千克-1.的特定功率.
允许高端应用,如无人机,机器人和电动垂直起降飞机.

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