灵活的独立Fe-CoP-NAs/CC纳米阵列用于高性能全离子电池
Wenqi Tan1, Zhongping Liu2, Qian Wu1
1Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai 200444, China.
Journal of colloid and interface science
|April 20, 2024
概括
在碳布 (CC) 上使用铁化纳米阵列的新型柔性电极提供了卓越的离子存储. 这种材料表现出高容量和稳定性,为灵活的可穿戴电子产品铺平了道路.
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:
- 开发先进的电极材料对于高性能离子电池至关重要.
- 灵活和独立的电极对于下一代便携式和可穿戴式电子设备是可取的.
- 在酸中的铁可以增强电化学性质.
研究的目的:
- 在碳布 (CC) 上制造一个灵活的,独立的Fe-doped CoP纳米阵列电极,用于增强离子存储.
- 为了研究制造的电极的电化学性能和储存机制.
- 为了评估与Fe-CoP-NAs/CC电极组装的电池的性能,用于可穿戴设备中的潜在应用.
主要方法:
- 在碳布支架上制造柔性,独立的Fe-doped CoP纳米阵列.
- 使用循环电量计 (CV) 和静电间歇定位技术 (GITT) 进行电化学表征.
- 组装和测试一个完整的电池 (Fe-CoP-NAs/CC//LiFePO4) 和一个软包电池.
主要成果:
- 用Fe合的CoP纳米阵列电极在0.2A/g时表现出1356 mAh/g的高特异容量和出色的循环稳定性 (100个循环后1138 mAh/g).
- CV和GITT分析显示了联合扩散和电容行为,表明快速的Li+扩散动力学.
- 组装的Fe-CoP-NAs/CC//LiFePO4电池在5 A/g时显示出325.2 mAh/g的显著容量,具有良好的循环稳定性 (200个循环后498.1 mAh/g).
结论:
- 在CC上的Fe-doped CoP纳米阵列作为离子存储的高性能电极材料.
- 电极的灵活性和电化学特性使其适用于灵活的储能装置.
- 开发的软包电池展示了为可穿戴电子设备供电的潜力,因为它在曲条件下具有稳定的性能.
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