3D打印的灵活和可集成的不对称微型超级电容器具有高实体能量密度.
Lihui Chen1, Pinjing Yao1, Wangyang Li1,2
1College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou 350108, China.
ACS applied materials & interfaces
|March 12, 2025
概括
3D打印的微型超级电容器 (MSC) 带有网状电极可以实现超高能量密度. 这种3D打印储能技术的进步为微型设备提供了卓越的性能.
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:
- 3D打印的准固态微型超级电容器 (MSC) 提供了高功率密度,灵活性和芯片内集成潜力.
- 挑战包括制定高性能3D打印油墨和确保高面积能量密度的厚电极中高效的离子传输.
研究的目的:
- 报告3D打印的超高能量密度不对称的MSCs,使用新型格子电极.
- 为了克服先进的MSC的墨水配方和离子运输方面的局限性.
主要方法:
- 使用Ni-Co-S/Co(OH) 2/碳纳米管/减少的氧化石墨烯 (Ni-Co-S/Co(OH) 2/CNTs/rGO) 制造不对称的MSC,用于正电极,使用活性碳 (AC) /CNTs用于负电极.
- 使用具有层次孔的格子电极设计和相互连接的导电网络 (CNT和rGO/AC) 进行高效的离子和电子传输.
主要成果:
- 采用三层格子电极的3D打印不对称MSC实现了543μWh cm−2的面积能量密度和1.74 F cm−2的面积电容,1 mA cm−2.2.
- 性能几乎是平面电极的两倍.
- 经过5000个循环后,表现出极好的循环稳定性,容量保持率为80%.
结论:
- 这项工作证明了3D打印用于储能应用的重大进步.
- 开发的格子电极设计提供了创建高性能,集成灵活的MSC的原则.
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