双向封闭的氧催化器操纵的半固体转换为无穿式固态Zn-I电池
Mingli Wang1,2, Jingkang Ma1,2, Hong Zhang3
1Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei, Anhui, 230601, China.
Small (Weinheim an der Bergstrasse, Germany)
|November 8, 2023
概括
这项研究介绍了一种使用核心外阴极的新型无聚酸电池. 这种设计可以实现高效,可逆的转化,从而使灵活的固态电池具有高能量密度.
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:
- 在金属电池中实现可逆物种化对于实际应用至关重要.
- 现有的金属电池经常患有与聚化形成和低效的氧化还原转化相关的问题.
研究的目的:
- 开发一种无聚化的- (Zn-I2) 电池,以提高电化学性能.
- 展示一种新的阴极结构,以促进可控和可逆的转化.
- 调查普鲁士蓝和多聚烯在调解氧化还原反应中的催化作用.
主要方法:
- 使用多孔的普鲁士蓝色纳米立方体和聚烯外制造一个核心外结构阴极.
- 使用一种酸盐 (Znx+1FeIII/II[Fe(CN) 6y) 氧化还原媒介,在放电过程中催化聚化的还原.
- 使用相同的介质在充电期间催化聚化氧化,使可逆ZnI2转化为I2.
主要成果:
- 开发的Zn-I2电池在没有聚化形成的情况下工作,展示了双向封闭的氧化还原催化.
- 核心外阴极展示了高效的离子间歇动力学和重叠的动力电压配置.
- 使用这种阴极的柔性固态电池实现了高能量密度215Wh kg-1 (基).
结论:
- 经过证明的无聚化Zn-I2电池设计为先进的储能解决方案提供了一个有前途的途径.
- 普鲁士蓝和多聚烯的协同催化效应是电池可逆转换的关键.
- 这种方法为高性能,灵活的固态金属电池铺平了道路.
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