作为可充电离子电池的阴极的罗姆面普鲁士白色
Long Wang1, Jie Song, Ruimin Qiao
1Sharp Laboratories of America , Camas, Washington 98607, United States.
Journal of the American Chemical Society
|January 24, 2015
概括
一种新的,稳定的铁六亚诺酸盐阴极材料为离子电池提供了高性能. 这项研究阐明了其机制,并证明了其在低成本电池制造方面的潜力.
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:
- 离子电池是离子电池的有希望的替代品,因为的丰富含量.
- 开发具有成本效益和高性能的正极材料对于商业化离子电池至关重要.
研究的目的:
- 为离子电池引入一种新型的,稳定在空气中的铁六亚诺酸盐阴极材料 (R-Na1.92Fe[Fe(CN) [6]).
- 阐明铁氧化还原机制及其与电化学性能的相关性.
- 评估使用现有基础设施制造低成本离子电池的可行性.
主要方法:
- 合成了一种新型的稳定于空气的铁六亚诺酸盐,具有面结构.
- 电化学表征包括容量,循环寿命和速率能力测试.
- 基于同步光子的软X射线吸收光谱,以研究铁氧化还原机制和材料特性.
主要成果:
- 材料R-Na1.92Fe[Fe(CN) 6具有高容量,长周期寿命和良好的速度能力.
- 同步子光谱学澄清了铁氧化还原机制及其与细胞性能的联系.
- 一种脱水形式使得使用非金属阳极制造电池成为可能,证明了制造的可行性.
结论:
- R-Na1.92Fe[Fe(CN) 6是一种可扩展的,低成本的正极材料,用于高性能离子电池.
- 了解铁氧还氧化机制是优化电池性能的关键.
- 该材料的特性支持使用现有制造线开发具有成本效益的离子电池.
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