High-performance flexible thermoelectric devices with a copper foam heatsink for personal thermal management

Zhou, Wenjie; Pang, Kaikai; Zhang, Yuyou; Zhou, Chuandong; Zhang, Zongwei; Yang, Hao; Zhang, Qiang; Li, Yanan; Hu, Haoyang; Tan, Xiaojian; Sun, Peng; Wu, Jiehua; Liu, Guoqiang; Jiang, Jun

doi:10.1039/d4tc01006j

J. Mater. Chem. C

2024

DOI: 10.1039/d4tc01006j

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High-performance flexible thermoelectric devices with a copper foam heatsink for personal thermal management

Wenjie Zhou,

Kaikai Pang,

Yuyou Zhang

et al.

Abstract: Flexible thermoelectric device (F-TED) possesses two distinct advantages: harvesting residual heat from the human body to power electronic devices and regulating body temperature to achieve thermal comfort states. These unique...

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Flexible Bridged Thermoelectric Device with an Optimized Heatsink for Personal Thermal Management

Li,

Ren,

Zhang

et al. 2024

ACS Appl. Mater. Interfaces

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A wearable thermoelectric cooler (TEC) for personal thermal management exhibits significant growth in numerous applications in personal thermal comfort and saving the energy consumed by space cooling. Most TECs provide a large cooling performance with the assistance of rigid heatsinks and electrodes, limiting wearability and practical implementation. Here, we design and propose a flexible bridged personal TEC with a high thermal management heatsink and spray-printed liquid metal electrodes. The system combines a bendable heatsink, a thermally insulative TE layer, and a bottom thermally conductive layer. Especially, the flexible heatsink composed of metal foam, phase change material, and fin structure greatly enhances the thermal conduction, storage, and diffusion capacities. Our TEC exhibits the desired comfortability and obtains an ideal temperature drop of 3 °C on human skin. Also, it could work as a self-generator providing 45 mV with a ΔT of 5 °C, which improves the generation efficiency by more than 3 times due to the stable temperature difference between the two sides. This work provides an effective way to develop wearable TEC devices and paves the way for achieving practical, personalized cooling applications.

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Flexible Bridged Thermoelectric Device with an Optimized Heatsink for Personal Thermal Management

Li,

Ren,

Zhang

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

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High-performance flexible thermoelectric devices with a copper foam heatsink for personal thermal management

Abstract: Flexible thermoelectric device (F-TED) possesses two distinct advantages: harvesting residual heat from the human body to power electronic devices and regulating body temperature to achieve thermal comfort states. These unique...

Cited by 1 publication

References 60 publications

Flexible Bridged Thermoelectric Device with an Optimized Heatsink for Personal Thermal Management

Flexible Bridged Thermoelectric Device with an Optimized Heatsink for Personal Thermal Management

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