平面图案设计和储能性能比较激光诱导的石墨烯柔性超级电容器
Qi Xiong1, Jiaheng Xu1, Huiting Li1
1Guangxi University, School of Physics, CHINA.
概括
这项研究通过探索各种模式和激光功率来优化激光诱导的石墨烯 (LIG) 超级电容器. 优化激光功率的数字间模式为平面灵活超级电容器提供了优越的能量存储和灵活性.
科学领域:
- 材料科学 材料科学 材料科学
- 储能 储能 储能 储能 储能 储能
- 纳米技术 纳米技术
背景情况:
- 激光诱导石墨烯 (LIG) 为超级电容器提供了高效的电极制造.
- 现有的LIG超级电容器 (LIG SCs) 在工作电压和性能变化方面存在局限性.
- 激光功率显著影响LIG SC设备的性能.
研究的目的:
- 研究不同模式和激光功率对LIG SC储能性能的影响.
- 为了确定增强的LIG SC设备的最佳配置.
- 探索LIG SCs在柔性电子产品中的潜力.
主要方法:
- 制造各种图案的LIG SC设备 (数字间,螺旋,圆形).
- 在LIG制造过程中激光功率的系统变化.
- 电化学特性包括电容,工作电压,能量密度和循环稳定性.
- 在机械曲下对设备性能进行评估.
主要成果:
- 与其他模式相比,数字间图案的LIG SCs表现出优越的性能.
- 最佳的激光功率为2.75W,在0.2mA cm-2.2时产生10.78mF cm-2的面积特定电容.
- 实现了1.8V的广泛工作电压和4.85μWh的最大能量密度cm-2.2.
- 在8000次循环后保持了84.1%的电容,在60°曲时保持了8.33mF cm-2的电容.
结论:
- 采用优化激光功率制造的数字间图案LIG SCs是高性能平面柔性超级电容器的有希望的方法.
- 这些发现为设计先进的储能设备提供了关键的见解.
- 激光处理提供了一种多功能方法来定制LIG SC属性.
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