Scalable manufacturing of a durable, tailorable, and recyclable multifunctional woven thermoelectric textile system

Jing, Yuanyuan; Luo, Jun; Xue, Hao; Yang, Jianguo; Liu, Qiulin; Zheng, Yuanyuan; Chen, Xinyi; Huang, Feng; Chen, Jiawen; Qin-liang, Zhuang; Shen, Yanan; Chen, Haisheng; Zhao, Huaizhou; Snyder, G. Jeffrey; Li, Guodong; Zhang, Ting; Zhang, Kun

doi:10.1039/d3ee01031g

Cited by 23 publications

(8 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Optimization and Thermal Analysis of the STEG. According to previous reports, 18,19 thermal resistance optimization at the device level is crucial for designing a highperformance STEG. As is known, external thermal resistance (thermal resistance among the skin-device-environment interface, θ air and θ skin ) usually overwhelms the thermal resistance of the STEG (θ STEG ).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

A Conformable and Stretchable Thermoelectric Generator for Efficient Body Heat Harvesting

Han,

Yang,

Zhang

2024

ACS Appl. Electron. Mater.

Self Cite

View full text Add to dashboard Cite

Three-dimensional thermoelectric generators (TEGs) efficiently and reversibly convert energy between heat and electricity without any chemical reactions or noise, revealing the prospect of generating electricity for on-body applications. However, existing flexible TEGs suffer from low output thermoelectric power due to ineffective thermal energy harvesting from the dynamic human body. Here, we report a design strategy to address this problem, in which bulk thermoelectric pillars with an optimized aspect ratio interconnected by serpentine electrodes are sandwiched between two ultrastretchable elastomer substrates with high thermal conductivity (0.83 W m −1 K −1 ). The synergistic effect of the thermoelectric pillars with their optimized aspect ratio and the air insulation layer between the elastomer substrates increases the thermal resistance of the TEG, thereby enhancing heat dissipation to an ambient environment. The combination of stretchable serpentine electrodes and the ultrastretchable elastomer substrate allows for the effective absorption of strain energy under deformation, ensuring mechanical stability and enhancing heat transfer from the human body. Thanks to the thermal design, the stretchable TEG (STEG) demonstrates good stretchability (62.5% elongation) and flexibility with a minimum bending radius of 7 mm; it also shows an output power density of 2.1 mW cm −2 at an applied temperature difference of 19 K and a normalized power density of 6.04 μW cm −2 K −2 . In practice, the STEG, when attached to an elbow, shows a maximum power density of 51.42 μW cm −2 and a steady-state maximum power density of 20 μW cm −2 at an ambient temperature of ∼290.15 K.

show abstract

Section: ■ Results and Discussionmentioning

confidence: 99%

A Conformable and Stretchable Thermoelectric Generator for Efficient Body Heat Harvesting

Han,

Yang,

Zhang

2024

ACS Appl. Electron. Mater.

Self Cite

View full text Add to dashboard Cite

show abstract

“…With the advancement of thermoelectric science and technology, the morphology of weavable thermoelectric materials has become diverse, and the research focus in this field continues to evolve. Generally, research focus areas in weavable thermoelectrics can be categorized as indicated by figure 2, including 1D fibers [42,43, and nanowires (NWs) [167,168], 2D thin films [169][170][171][172], 3D fabrics [173][174][175][176][177][178][179][180][181][182][183][184][185][186], device assembling [42,43,124], simulations [187,188], and integrations [189]. Among them, thermoelectric fibers with typical 1D macroscopic morphologies have garnered significant research attention.…”

Section: Classifications Of Weavable Thermoelectricsmentioning

confidence: 99%

“…Another research emphasis includes the design of substrates or supports that match woven thermoelectric fibers, such as common fabrics, flexible strings, and silicone. These support materials can serve solely as structural supports [173][174][175] or be thermoelectrically functionalized [176][177][178][179][180][181][182][183][184][185][186].…”

Section: Classifications Of Weavable Thermoelectricsmentioning

confidence: 99%

“…To achieve specific goals, these fabrics require careful selection based on factors such as shape, porosity, and material, and may also need further modifications. Figure 11(a) illustrates the structure of a wearable device with embedded bulk thermoelectric materials, and figure 11(b) shows the body surface temperature changes as a function of cooling time by wearing the device [174]. This is a scalable manufacturing method for thermoelectric fabrics, achieved by directly weaving inorganic bulk materials into the fabric using a semi-automatic weaving machine.…”

Section: Fabrics As Substrates For Weavable Thermoelectricsmentioning

confidence: 99%

“…In conclusion, temperature regulation through thermoelectric fabrics has significant implications both for human health and for reducing energy consumption. Achieving a two-degree temperature regulation for the human body can save approximately 20% of energy consumption in systems such as air conditioning and ventilation [174]. Thermoelectric fabrics offer advantages such as portability, noiselessness, absence of moving parts, and no additional energy input requirements.…”

Section: Fabrics As Substrates For Weavable Thermoelectricsmentioning

confidence: 99%

See 2 more Smart Citations

Weavable thermoelectrics: advances, controversies, and future developments

Shi,

Sun,

et al. 2024

Mater. Futures

View full text Add to dashboard Cite

Owing to the capability of the conversion between thermal energy and electrical energy and their advantages of lightweight, compactness, noise-free operation, and precision reliability, wearable thermoelectrics show great potential for diverse applications. Among them, weavable thermoelectrics, a subclass with inherent flexibility, wearability, and operability, find utility in harnessing waste heat from irregular heat sources. Given the rapid advancements in this field, a timely review is essential to consolidate the progress and challenge. Here, we provide an overview of the state of weavable thermoelectric materials and devices in wearable smart textiles, encompassing mechanisms, materials, fabrications, device structures, and applications from recent advancements, challenges, and prospects. This review can serve as a valuable reference for researchers in the field of flexible wearable thermoelectric materials and devices and their applications.

show abstract

Bioinspired Wearable Thermoelectric Device Constructed with Soft‐Rigid Assembly for Personal Thermal Management

Wu,

Lin,

Tian

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

The development of high‐performance thermoelectric devices (TEDs) with personal thermoregulation is crucial for the advancement of next‐generation wearable technologies. Most efforts focus on optimizing mechanical flexibility in fully encapsulated devices, but parasitic heat loss induced by the layer‐packed polymer matrices with high thermal impedance typically leads to degradation in sensing and bidirectional conversion capabilities. Here, a bioinspired architectural strategy is proposed for this problem that demonstrates the feasibility of single‐sided assembly based on a soft‐rigid “skin‐spine” configuration to improve heat utilization efficiency. With active TE units connected via serpentine electrodes, skin‐spine‐structured wearable thermoelectric devices (SSSW‐TEDs) are successfully fabricated enabling temperature sensing and bidirectional heat‐to‐electricity conversion under mild forced convection. This contributes to significant enhancements in power delivery (by 300%) and cost‐benefit analysis (by 100%) through efficient air convection heat dissipation. Moreover, SSSW‐TED enables personal thermal regulation by harnessing body heat, cooling the skin, and perceiving behaviors such as touching and blowing. This study not only provides novel insights for high‐performance TEDs but also lays the foundation for the widespread implementation of skin thermoregulation.

show abstract

Scalable manufacturing of a durable, tailorable, and recyclable multifunctional woven thermoelectric textile system

Abstract: Personal thermoregulation and waste heat harvesting by wearable thermoelectric devices play important roles in reducing energy consumption towards ultimate carbon neutralization. Despite the progress achieved, it is challenging in mass...

Cited by 23 publications

References 59 publications

A Conformable and Stretchable Thermoelectric Generator for Efficient Body Heat Harvesting

A Conformable and Stretchable Thermoelectric Generator for Efficient Body Heat Harvesting

Weavable thermoelectrics: advances, controversies, and future developments

Bioinspired Wearable Thermoelectric Device Constructed with Soft‐Rigid Assembly for Personal Thermal Management

Contact Info

Product

Resources

About