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Ultra-thin multilayer films for enhanced energy storage performance
Therefore, combination of BF and ST into multilayer films has great potential in energy storage performance, which has also been indicated by phase-field calculations [29]. Previous reports on BF/ST multilayer films controlled the ratio of BiFeO 3 to SrTiO 3, but the achieved W rec and efficiency ( η ) were only 40.69 J/cm 3 and 44.7% …
Electrospun Lignin-Based Phase-Change Nanofiber …
In this study, phase-change nanofiber films [PCNFs, sodium lignosulfonate (SLS)/polyvinyl alcohol (PVA)/polyethylene glycol (PEG)], which maintain their shape, were developed for solar-to-thermal …
Phase change material-based thermal energy storage …
Phase change material (PCM)-based thermal energy storage significantly affects emerging applications, with recent …
A review on phase change energy storage: materials and applications
Comprehensive lists of most possible materials that may be used for latent heat storage are shown in Fig. 1(a–e), as reported by Abhat [4].Readers who are interested in such information are referred to the papers of Lorsch et al. [5], Lane et al. [6] and Humphries and Griggs [7] who have reported a large number of possible candidates for …
Flexible self-healing phase change film with high transition …
Because of their superior characteristics including temperature constancy during phase change, high thermal energy storage density and system simplicity, they have been used as efficient tools for battery thermal management or thermal runaway suppression [13], [14], [15]. However, the inevitable problem of PCMs for thermal …
Graphene aerogel-phase change material host-guest smart films
During the heating process, the temperature of phase change film increased rapidly, and a temperature plateau with a minimum slope was observed at a temperature of ... Optimization strategies of composite phase change materials for thermal energy storage, transfer, conversion and utilization. Energy Environ. Sci., 13 (12) …
Phase change material-based thermal energy storage
Phase change material-based thermal energy storage
Biodegradable polylactic acid/polyethylene glycol blends as form …
1. Introduction. Latent heat storage based on phase change materials (PCMs) has received intensive attention because of the advantages of reversible thermal energy storage, low cost, environmental friendliness, and negligible temperature fluctuations during transition process [1].These merits broaden the application of PCMs …
Phase-change materials for intelligent temperature regulation
4. Emerging PCMs for temperature regulation4.1. PCMs for smart windows. Windows are considered to be one of the least energy-efficient parts among all building components [50].Thirty percent heat in the building is dissipated through windows in winter [51] summer, strong sunlight heats up the room through windows, and the consequent …
Multifunctional phase change film with high recyclability, …
The 0.2PPL-2 film exhibits solid-solid phase change behavior with energy storage density of 131.8 J/g at the transition temperature of 42.1 °C, thermal cycling stability (500 cycles), wide-temperature range flexibility (0–60 °C) and self-healing property. Notably, the PPL film can be recycled up to 98.5% by intrinsic remodeling. Moreover ...
Hexagonal boron nitride-induced lamellar-structured flexible phase ...
The thermochromic phase change films exhibited favorable attributes, including flexibility and reversible thermochromic ability, and has phase-change enthalpy of 90.6–136.0 J·g −1 and light-to-thermal energy conversion up to 89.8 %. Furthermore, a wearable thermal management device (TC-PCMs/10BN/OBC-CC) was successfully …
Preparation of the polyvinyl alcohol thermal energy storage film ...
The PVA/FAS thermal energy storage films with the 15% HFAS content have the best tensile strength (9.87 MPa), thermal conductivity (0.611 W · m −1 ·K −1), and thermal energy storage property (59.04 J·g −1 after 1 cycle time) because of the best compatibility between HFAS and PVA. After 500 cycle times, the latent heat of the …
One-Step Synthesis of Multifunctional Bacterial Cellulose Film …
As one of the important directions of solar energy utilization, the construction of composite photothermal phase change materials (PCM) with reasonable network support and low leakage in the simple method is important to solve the transient availability of solar energy and achieve long-lasting energ …
Shape-stabilized composite phase change film with …
A shape-stable reversible thermochromic phase change composite assembled from a regenerated porous cellulose membrane as a support matrix is expected to be applied to the field of thermal energy …
An intrinsically flexible phase change film for wearable thermal ...
A multifunctional phase change composite in which the energy storage can be driven by small voltages or light illumination with high electro- to-heat or photo-to-thermal storage …
An intrinsically flexible phase change film for wearable thermal ...
DOI: 10.1016/j.ensm.2020.10.014 Corpus ID: 225122354; An intrinsically flexible phase change film for wearable thermal managements @article{Kou2021AnIF, title={An intrinsically flexible phase change film for wearable thermal managements}, author={Yan Kou and Keyan Sun and Jipeng Luo and Feng Zhou and Haibo Huang and Zhong‐Shuai …
An intrinsically flexible phase change film for wearable thermal ...
To this end, we have fabricated a sandwich-like temperature control and thermal energy storage device via layer-by-layer assembly of MTPEG/GF/MTPEG film …
One‐Step Synthesis of Multifunctional Bacterial Cellulose Film…
As one of the important directions of solar energy utilization, the construction of composite photothermal phase change materials (PCM) with reasonable network support and low leakage in the simple method is important to solve the transient availability of solar energy and achieve long-lasting energy output.
Toward High-Power and High-Density Thermal Storage: Dynamic …
Here we report the exploration of a magnetically enhanced photon-transport-based charging approach, which enables the dynamic tuning of the distribution …
Phase change material-based thermal energy storage
A tradeoff exists between the energy density (latent heat) and power density (thermal conductivity) for optimal PCM design. Figure 3 A shows the transient boundary heat flux (q″ = f(t)) absorbed by solid-liquid phase change as a function of time (t) when the left boundary superheat reaches 10 K for various boundary conditions …
Energy saving phase change energy storage thermochromic …
The phase change energy storage area (PCES-area) releases the stored energy, thus extending the color change time at the phase change temperature point and achieving energy saving effect. In addition, based on the characteristics of PCES-TC-LCD, it is possible to build multi-color patterns by superimposing different temperature fields.
Performance investigation of a solar-driven cascaded phase change …
22 · Using cascaded PCM energy storage modules with different phase change temperatures can effectively reduce the storage tank volume and enable cascaded utilization of solar thermal energy. The phase ...
Flexible graphene aerogel-based phase change film for solar …
Developing phase change materials (PCMs) with solar-thermal energy conversion and storage for wearable personal thermal management is of significance but challenging, due to the difficulty of overcoming the liquid phase leakage, weak light adsorption, and solid phase rigidity of conventional phase change materials.
Saving heat until you need it | MIT News | Massachusetts …
A good way to store thermal energy is by using a phase-change material (PCM) such as wax. Heat up a solid piece of wax, and it''ll gradually get warmer — until it begins to melt. As it transitions from the solid to the liquid phase, it will continue to absorb heat, but its temperature will remain essentially constant.
Multifunctional phase change film with high recyclability, …
The 0.2PPL-2 film exhibits solid-solid phase change behavior with energy storage density of 131.8 J/g at the transition temperature of 42.1 °C, thermal cycling stability (500 cycles), wide-temperature range flexibility (0–60 °C) and self-healing property. Notably, the PPL film can be recycled up to 98.5% by intrinsic remodeling.