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通过生物灵感细胞膜Zn接口抑制被动化,用于具有扩展温度适应性的Zn-空气电池

Yu Bai¹, Danni Deng¹, Jinxian Wang¹

¹State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, P. R. China.

Advanced materials (Deerfield Beach, Fla.)

|August 27, 2024

概括

这项研究开发了空气电池的生物灵感接口,显著改善了在低温下稳定的运行. 新设计增强了离子转移,在极端条件下延长了电池寿命.

科学领域:

电化学电化学电化学
材料科学材料科学材料科学
储能储能储能储能储能储能

背景情况:

空气电池 (ZAB) 的稳定运行受阻于电电解质接口的质量和电荷转移缓慢,特别是在低温下.
绝缘氧化 (ZnO) 消极化层的形成加剧了性能恶化.

研究的目的:

为准固态 (QSS) ZABs设计一个稳定的Znadysaelectrolyte接口,可以克服低温操作挑战.
为了研究生物灵感的水性-性双模块化接口对广泛的温度范围内的离子转移动态和电池性能的影响.

主要方法:

以细胞膜为灵感,构建了一种水友-水双调节接口.
在ZAB和空气电池 (AAB) 中使用准固态电解质.
使用控制实验和现场表征技术来分析接口行为和被动化层的形成.

主要成果:

带有工程接口的QSS ZAB在25°C下实现了180小时的可循环使用,在-60°C下实现了173小时的记录,超过了未经处理的电池.
生物灵感接口有效地抑制了绝缘ZnO被动化层的生长,增强了Zn2+从25°C到-60°C的转移动态.
经过修改接口的QSS AAB显示出增强的放电稳定性 (在-40°C下420小时).

结论:

生物启发的水性-性双调制策略显著提高了ZAB和AAB的低温性能和长期稳定性.
这种方法有效地解决了通过优化离子转移和抑制被动化层形成的接口挑战.
该战略为开发具有广泛温度适应性的储能设备提供了一个有前途的途径.

关键词:

在Zn空气电池.生物灵感设计的设计接口调制接口调制在低温的低温下.消极化是一种被动化.

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