Bioinspired thermo-actuated thermoelectric/phase-change system for all-day power generation
Source abstract
Abstract
Abstract The increasing global electricity demand underscores the urgent need for clean energy solutions. Thermoelectric materials, capable of converting waste heat into electricity, present a promising avenue. However, their efficiency is often compromised by intermittent heat sources. To address this, we propose a radial thermo-actuated thermoelectric/phase-change system inspired by the energy-conserving mechanism of the sun starfish’s wrist foot. This design employs shape memory alloy to optimize heat source utilization. The device autonomously opens to sustain a temperature gradient during sufficient heat supply and closes to minimize heat dissipation when the source is inadequate. Notably, the closed-state delays the hot-end temperature drop by ~ 1700 s, significantly reducing energy loss. Further integration with a photothermal-enhanced phase change material yields an all-day self-powered thermoelectric system. Daytime operation achieves a maximum temperature difference of 28.64 °C and an output voltage of 14.89 mV, while nighttime performance maintains an average temperature difference of 6.21 °C, ensuring stable heat supply. Our work introduces a scalable strategy for sustainable power generation in outdoor environments.
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Research context
OpenAlex topics: Advanced Thermoelectric Materials and Devices · Solar-Powered Water Purification Methods · Advanced Materials and Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
Show source-provided references
1. Sun Q, Du CY, Chen GM (2025) Thermoelectric materials and applications in buildings. Prog Mater Sci 149:101402. https://doi.org/10.1016/j.pmatsci.2024.10140210.1016/j.pmatsci.2024.101402 ↗
2. Tan M, Shi XL, Liu WD, Jiang Y, Liu SQ, Cao TY et al (2025) Enabling ultra-flexible inorganic thin-film-based thermoelectric devices by introducing nanoscale titanium layers. Nat Commun 16:633. https://doi.org/10.1038/s41467-025-56015-510.1038/s41467-025-56015-5 ↗
3. Du MZ, Wen Y, Chen ZJ, Xu YC, Qin J, Cheng HL et al (2025) A polymer film with very high seebeck coefficient and overall thermoelectric properties by secondary doping, dedoping engineering and ionic energy filtering. Adv Funct Mater 35:2411815. https://doi.org/10.1002/adfm.20241181510.1002/adfm.202411815 ↗
4. Wang Y, Wu S, Yin Q, Du K, Yin Q, Jiang B et al (2021) Novel hybrid p- and n-type organic thermoelectric materials based on mussel-inspired polydopamine. ACS Appl Mater Interfaces 13:23970–23982. https://doi.org/10.1021/acsami.1c0145710.1021/acsami.1c01457 ↗
5. Wang Y, Yang L, Shi XL, Shi X, Chen LD, Dargusch MS et al (2019) Flexible thermoelectric materials and generators: challenges and innovations. Adv Mater 31:1807916. https://doi.org/10.1002/adma.20180791610.1002/adma.201807916 ↗
6. He YJ, Li SW, Chen R, Liu X, Odunmbaku GO, Fang W et al (2023) Ion-electron coupling enables ionic thermoelectric material with new operation mode and high energy density. Nano-Micro Lett 15:101. https://doi.org/10.1007/s40820-023-01077-710.1007/s40820-023-01077-7 ↗
7. Lu X, Mo ZW, Liu ZP, Hu YF, Du CY, Liang LR et al (2024) Robust, efficient, and recoverable thermocells with zwitterion-boosted hydrogel electrolytes for energy-autonomous and wearable sensing. Angew Chem Int Ed Engl 63:e202405357. https://doi.org/10.1002/anie.20240535710.1002/anie.202405357 ↗
8. Cai Y, Hong B-H, Wu W-X, Wang W-W, Zhao F-Y (2022) Active cooling performance of a pcm-based thermoelectric device: dynamic characteristics and parametric investigations. Energy 254:124356. https://doi.org/10.1016/j.energy.2022.12435610.1016/j.energy.2022.124356 ↗
9. Hou M, Chen H, Li S, Zhang X, Chen J, Jiang Z et al (2025) A tri-mode photothermal, phase‐change, and radiative‐cooling film for all‐day thermoelectric generation. Adv Mater 2505601. https://doi.org/10.1002/adma.20250560110.1002/adma.202505601 ↗
10. Lin Y, Kang Q, Liu Y, Zhu Y, Jiang P, Mai Y-W et al (2023) Flexible, highly thermally conductive and electrically insulating phase change materials for advanced thermal management of 5 g base stations and thermoelectric generators. Nano-Micro Lett 15:31. https://doi.org/10.1007/s40820-022-01003-310.1007/s40820-022-01003-3 ↗
11. Liu A, Xie H, Wu Z, Wang Y (2022) Advances and outlook of te-pcm system: a review. Carbon Neutral 1:20. https://doi.org/10.1007/s43979-022-00018-410.1007/s43979-022-00018-4 ↗
12. Aftab W, Shi J, Qin M, Liang Z, Xiong F, Usman A et al (2022) Molecularly elongated phase change materials for mid-temperature solar-thermal energy storage and electric conversion. Energy Storage Mater 52:284–290. https://doi.org/10.1016/j.ensm.2022.08.00210.1016/j.ensm.2022.08.002 ↗
13. Aftab W, Usman A, Shi J, Yuan K, Qin M, Zou R (2021) Phase change material-integrated latent heat storage systems for sustainable energy solutions. Energy Environ Sci 14:4268–4291. https://doi.org/10.1039/D1EE00527H10.1039/D1EE00527H ↗
14. Wang G, Tang Z, Gao Y, Liu P, Li Y, Li A et al (2023) Phase change thermal storage materials for interdisciplinary applications. Chem Rev 123:6953–7024. https://doi.org/10.1021/acs.chemrev.2c0057210.1021/acs.chemrev.2c00572 ↗
15. Liu M, Li X, Li L, Zhao S, Zhu J, Zhou T et al (2024) Sustainable all-day thermoelectric power generation from the hot sun and cold universe. Small 20:2403020. https://doi.org/10.1002/small.20247026410.1002/small.202470264 ↗
16. Zhao HY, Wang X, Wu J, Shu C, Gao FL, Li CJ et al (2024) An intelligent, solar-responsive, and thermally conductive phase-change system toward solar-thermal-electrical conversion featuring daytime blooming for solar energy harvesting and nighttime closing for thermal preservation. Adv Funct Mater 34:2406236. https://doi.org/10.1002/adfm.20240623610.1002/adfm.202406236 ↗
17. Geng L, Li LL, Zhang H, Zhong MJ, Mu P, Li J (2022) Interfacial solar evaporator synergistic phase change energy storage for all-day steam generation. J Mater Chem A 10:15485–15496. https://doi.org/10.1039/d2ta04479j10.1039/d2ta04479j ↗
18. Liu YM, Shi XL, Wu T, Wu H, Mao YQ, Cao TY et al (2024) Boosting thermoelectric performance of single-walled carbon nanotubes-based films through rational triple treatments. Nat Commun 15:3426. https://doi.org/10.1038/s41467-024-47417-y10.1038/s41467-024-47417-y ↗
19. Liu ZJ, Chen CZ, Liu JD, Sun Q, Huo BC, Du CY et al (2025) All-day solar power generation enabled by photo/thermoelectric conversion and thermal energy storage. Sci China Chem 68:2035–2043. https://doi.org/10.1007/s11426-024-2336-110.1007/s11426-024-2336-1 ↗
20. Xiang D, Gu CD, Xu HR, Xiao G (2021) Self-assembled structure evolution of mn-fe oxides for high temperature thermochemical energy storage. Small 17:2101524. https://doi.org/10.1002/smll.20210152410.1002/smll.202101524 ↗
21. Jaleel SaA, Kim T, Baik S (2023) Covalently functionalized leakage-free healable phase-change interface materials with extraordinary high-thermal conductivity and low-thermal resistance. Adv Mater 35:2300956. https://doi.org/10.1002/adma.20230095610.1002/adma.202300956 ↗
22. Jing YG, Zhao ZC, Cao XL, Sun QR, Yuan YP, Li TX (2023) Ultraflexible, cost-effective and scalable polymer-based phase change composites via chemical cross-linking for wearable thermal management. Nat Commun 14:8060. https://doi.org/10.1038/s41467-023-43772-410.1038/s41467-023-43772-4 ↗
23. Li G, Hu Y, Chen JH, Liang LR, Liu ZX, Fu J et al (2023) Thermoelectric and photoelectric dual modulated sensors for human internet of things application in accurate fire recognition and warning. Adv Funct Mater 33:2303861. https://doi.org/10.1002/adfm.20230386110.1002/adfm.202303861 ↗
24. Lin KT, Lin H, Yang TS, Jia BH (2020) Structured graphene metamaterial selective absorbers for high efficiency and omnidirectional solar thermal energy conversion. Nat Commun 11:1389. https://doi.org/10.1038/s41467-020-15116-z10.1038/s41467-020-15116-z ↗
25. Min P, Liu J, Li XF, An F, Liu PF, Shen YX et al (2018) Thermally conductive phase change composites featuring anisotropic graphene aerogels for real-time and fast-charging solar-thermal energy conversion. Adv Funct Mater 28:1805365. https://doi.org/10.1002/adfm.20180536510.1002/adfm.201805365 ↗
26. Cao TY, Shi XL, Chen ZG (2023) Advances in the design and assembly of flexible thermoelectric device. Prog Mater Sci 131:101003. https://doi.org/10.1016/j.pmatsci.2022.10100310.1016/j.pmatsci.2022.101003 ↗
27. Jia YH, Jiang QL, Sun HD, Liu PP, Hu DH, Pei YZ et al (2021) Wearable thermoelectric materials and devices for self-powered electronic systems. Adv Mater 33:2102990. https://doi.org/10.1002/adma.20210299010.1002/adma.202102990 ↗
28. Masoumi S, O’shaughnessy S, Pakdel A (2022) Organic-based flexible thermoelectric generators: from materials to devices. Nano Energy 92:106774. https://doi.org/10.1016/j.nanoen.2021.10677410.1016/j.nanoen.2021.106774 ↗
29. Shi XL, Wang LJ, Lyu W, Cao TY, Chen WY, Hu BX et al (2024) Advancing flexible thermoelectrics for integrated electronics. Chem Soc Rev 53:9254–9305. https://doi.org/10.1039/d4cs00361f10.1039/d4cs00361f ↗
30. Mo J, Prévost SF, Blowes LM, Egertová M, Terrill NJ, Wang W et al (2016) Interfibrillar stiffening of echinoderm mutable collagenous tissue demonstrated at the nanoscale. Proc Natl Acad Sci U S A 113:E6362–E6371. https://doi.org/10.1073/pnas.160934111310.1073/pnas.1609341113 ↗
31. Raman, Labisch S, Dirks J-H (2024) A starfish-inspired 4d self-healing morphing structure. Sci Rep 14:22024. https://doi.org/10.1038/s41598-024-71919-w10.1038/s41598-024-71919-w ↗
32. Wilkie IC (2005) Mutable collagenous tissue: overview and biotechnological perspective. Prog Mol Subcell Biol 39:221–250. https://doi.org/10.1007/3-540-27683-1_1010.1007/3-540-27683-1_10 ↗
33. Zhou Q, Li HX, Du CY, Ye ZQ, Liang LR, Chen GM (2023) High-performance flexible thermoelectric generators with tunable in-plane and out-of-plane architectures. Nano Energy 118:109007. https://doi.org/10.1016/j.nanoen.2023.10900710.1016/j.nanoen.2023.109007 ↗
34. Liu L, Chen J, Liang LR, Deng L, Chen GM (2022) A pedot:Pss thermoelectric fiber generator. Nano Energy 102:107678. https://doi.org/10.1016/j.nanoen.2022.10767810.1016/j.nanoen.2022.107678 ↗
35. Deng W, Deng L, Li Z, Zhang Y, Chen G (2021) Synergistically boosting thermoelectric performance of pedot:Pss/swcnt composites via the ion-exchange effect and promoting Swcnt dispersion by the ionic liquid. ACS Appl Mater Interfaces 13:12131–12140. https://doi.org/10.1021/acsami.1c0105910.1021/acsami.1c01059 ↗
36. Wang L, Zhang J, Guo Y, Chen X, Jin X, Yang Q et al (2019) Fabrication of core-shell structured poly(3,4-ethylenedioxythiophene)/carbon nanotube hybrids with enhanced thermoelectric power factors. Carbon 148:290–296. https://doi.org/10.1016/j.carbon.2019.03.08810.1016/j.carbon.2019.03.088 ↗
37. Ma XL, Zhao J, Shou DH, Liu Y (2024) A highly-flexible and breathable photo-thermo-electric membrane for energy harvesting. Adv Energy Mater 14:2304032. https://doi.org/10.1002/aenm.20230403210.1002/aenm.202304032 ↗
38. Zhang ZG, Fang XM (2006) Study on paraffin/expanded graphite composite phase change thermal energy storage material. Energy Conv Manage 47:303–310. https://doi.org/10.1016/j.enconman.2005.03.00410.1016/j.enconman.2005.03.004 ↗
39. Ding J, Wu XD, Shen XD, Cui S, Chen XB (2020) Form-stable phase change material embedded in three-dimensional reduced graphene aerogel with large latent heat for thermal energy management. Appl Surf Sci 534:147612. https://doi.org/10.1016/j.apsusc.2020.14761210.1016/j.apsusc.2020.147612 ↗
40. Nie XH, Yao X, Zhang XY, Xiong HP, Deng S, Zhao L (2025) Thermal-responsive smart materials for enhanced thermoelectric power generation. Next Energy 8:100261. https://doi.org/10.1016/j.nxener.2025.10026110.1016/j.nxener.2025.100261 ↗