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毫瓦级的3D热电发电机通过增材丝网印刷
Sairam Antharam1, Muhammad Irfan Khan2, Leonard Franke2
1Institut für Materialwissenschaft, Technical University of Darmstadt 64287 Darmstadt Germany.
Energy & environmental science
|July 9, 2025
概括
完全打印的热电发电机为低功耗电子产品提供可持续的,无电池的电源. 这项研究证明了热电发电机 (TEG) 的经济有效的丝网印刷,具有有前途的输出功率.
科学领域:
- 材料科学 材料科学 材料科学
- 收集能源 收集能源
- 可持续电子产品 可持续的电子产品
背景情况:
- 数字化依赖于可穿戴设备和物联网设备等电子元件,增加了能源需求.
- 离子电池是主要的动力来源,引发了可持续性问题.
- 热电发电机 (TEG) 为低功耗应用提供了潜在的电池替代方案.
研究的目的:
- 探索具有成本效益的,完全打印的热电发电机 (TEG) 作为可持续的电源.
- 为了克服印刷TEG的高接触电阻和厚度的局限性.
主要方法:
- 开发了一种增材丝网印刷方法,用于制造两种类型的3D打印TEG (打印-TEG I和打印-TEG II).
- 使用电极,间层和n型 (Ag2Se) 和p型 (Bi0.5Sb1.5Te3) 脚的层层打印.
- 研究了印刷TEG的六种不同的布局配置.
主要成果:
- 实现了0.36的填充系数,解决了接触阻力和厚度的挑战.
- 具有50个热电偶的print-TEG II产生了1.22mW的最大输出功率 (Pmax) 和在ΔT = 43K时的268mV的开放电路电压 (VOC).
- 对于完全打印的平面TEG.来说,已经证明了67μW cm−2 (>400μW g−1) 的最高功率密度 (Pd).
结论:
- 开发的丝网打印方法使得高性能打印TEG的成本效益高的制造成为可能.
- 印刷TEG显示出作为低功耗电子设备的可靠,不间断的电源的巨大潜力.
- 这项技术在不断增长的数字电子市场中,为电池提供了可持续的替代品.
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