高性能水性可充电NiCo//Zn电池与酸盐离子间隔的CoNi-LDH@CP双层阴极
Xiaolin Ma1, Linxiang Zhou1, Ting Chen1
1College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China.
Journal of colloid and interface science
|December 23, 2023
概括
研究人员开发了一种用于水性可充电基电池的新阴极材料. 这种材料提高了能量密度,功率和稳定性,在实际应用中表现出卓越的性能和安全性.
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:
- 开发高性能水性可充电基电池对于储能至关重要.
- 关键的挑战包括改善阴极材料容量,功率密度和循环稳定性.
研究的目的:
- 为了合成和表征一种新的双层阴极复合材料,用于增强的基电池.
- 为了研究酸盐介质对材料性能和电化学性能的影响.
主要方法:
- 采用双步热水过程,在酸微片 (MCN-LDH@CP) 上制备了酸层叠的氧化纳米片.
- 进行了电化学测试,以评估使用新阴极的CoNi//Zn电池的性能.
主要成果:
- 该MCN-LDH@CP阴极显著增加了特定容量,表面积和离子扩散率.
- 双层电极实现了高面积能量密度 (2.89 mWh/cm2) 和峰值功率密度 (111.22 mW/cm2).
- 观察到异常的循环稳定性 (97.8%在7000个循环后) 和改善的结构完整性.
结论:
- MCN-LDH@CP复合材料为开发高性能,稳定和安全的水性可充电基电池提供了一个有前途的途径.
- 该材料在准固态配置中表现出了显著的机械强度和可靠性.
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