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用于生产含有聚合物电解质的高能固态囊电池的高级参数化

Wonmi Lee¹, Juho Lee^1,2, Taegyun Yu¹

¹Ulsan Advanced Energy Technology R&D Center, Korea Institute of Energy Research, Ulsan, Republic of Korea.

Nature communications

|July 12, 2024

概括

工程化固态电池提供了更高的安全性和能量密度. 这项研究提出了一种新的电池设计,可达到高达310Wh/kg的特异能,推动了高能电池的开发.

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:

固态电池比液体电解质系统提供安全和能源优势.
目前在单元级固态电池的工程开发是有限的.
推进固态电池技术对于下一代能源存储至关重要.

研究的目的:

为高能固态电池引入先进的电池设计.
为了克服固态电池的细胞级工程方面的局限性.
通过实验验证来证明一个新设计的潜力.

主要方法:

开发了一个基于微结构和建筑参数的高级参数化的细胞设计.
组装并测试了10层和4层固态囊电池.
使用固体聚合物电解质,并在45°C时施加3.74 MPa的堆压力.

主要成果:

实现了10层电池的280Wh/kg (600Wh/L) 的初始特异能.
实现了4层电池的310Wh/kg (650Wh/L) 的初始特异能.
证明了拟议的电池设计在产生高能量密度方面的有效性.

结论:

拟议的电池设计成功地提高了固态电池的能量指标.
这项工作有助于推进固态电池的工程开发.
结果显示,高能固态电池的实际应用具有前景.

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