A green physical route for producing novel multifunctional polyvinyl alcohol/kappa-carrageenan alkaline gel polymer electrolyte is developed, which is based on double-network physical cross-linked hydrogel. The alkaline gel polymer electrolyte has excellent tensile stress (2.22 MPa), stretchability (12.43 mm/mm) and ionic conductivity …
The mechanism of high temperature shape memory effects based on chain flexibility, molecular weight and crosslink density is proposed. Exposure to thermal cycling from +150 °C to -150 °C for 200 h produces negligible effect on the properties of the shape memory polyimide, and the possible mechanism of high and low temperature …
The rapid development of wearable devices has put forward high requirements for stable, solid-state, flexible and even stretchable energy storage systems. Owing to their high specific energy density and volumetric energy density, metal–air batteries especially high-safety zinc–air batteries (ZABs), have attr
The FT-IR of co-PPEN/E51/DDS epoxy resin and E51/DDS epoxy resin before and after curing are shown in Fig. 2 can be seen from the spectrum in Fig. 2 that two peaks appear at 3456 and 3460 cm −1, which are the N–H symmetric and anti-symmetric stretching vibrations of the curing agent DDS (primary amine) [31], respectively.
More significantly, owing to the low-temperature resistance of 3.3 M KOH solvent and gelatin, the Lig/Gelatin-30 % exhibited an intriguing ionic conductivity (1.73 × 10 −3 S cm −1) at −40 C. Supercapacitor based on Lig/Gelatin-30 % delivered a tremendous electrochemical performance with a specific capacitance of 110.56F/g at −40 °C, which …
Additionally, the adhesion strength of natural polyphenol-diisocyanate adhesives (∼150 KPa) was slightly lower than some environmental resistant adhesives (∼200 Kpa), but they demonstrated commendable low-temperature resistance (−20 °C and −196 °C), with an adhesion strength of approximately ∼300 KPa at −196 °C.
all organic, capacitor dielectric polymer, heat-resistant insulation grades, high-temperature 1 | INTRODUCTION Energy storage capacitors have been extensively applied in modern electronic and power systems, including wind power generation,1 hybrid electrical2
Exceptional low-temperature characteristics and cold resistance of WPU-PDMS provide an ideal coating solution for various applications in Arctic conditions. The demand for cold-resistant coatings that can be applied at low temperatures is rapidly growing, especially for polar cables requiring extreme cold resis
Zhi et al. developed Zn||Ni batteries for low-temperature utilization, the constructed aqueous electrolyte has a lower freezing point down to −90 °C, and the electrolyte uses dimethyl sulfoxide to increase anti-freezing additive and prevents Zn dendrite, its discharge capacity retains 84.1 % at −40 °C and 60.6 % at −60 °C at 0.5 C ...
BOX 6.5 Seasonal aquifer storage of Stockholm''s airport. Stockholm''s Arlanda Airport has the world''s largest aquifer storage unit. It contains 200 million m3 of groundwater and can store 9 GWh of energy. One section holds cold water (at 3-6°C), while another has water heated to 15-25°C. The system works like a giant seasonal thermos ...
Ultra-low carbon high strength steels with excellent low-temperature toughness were prepared through thermomechanical and austenitizing treatments. Based on the studies on the microstructure parameters of single-phase steel, including HABGs, EGS, stress concentration and microcrack propagation pathway, the following conclusions are …
Low-temperature electric heat pumps, electric resistance and electrode boilers, electric resistance heaters, and sensible and latent heat storage have a high TRL. Therefore, they can facilitate a large share of the heat demand.
As a foam stabilizer for high temperature-resistant foaming systems, FA must be tested for its temperature resistance. The viscosity of FA solutions with different concentrations (200 mg/L, 400 mg/L, 600 mg/L, 800 mg/L, 1000 mg/L) at 80 °C was tested with a Brookfield viscometer DVII (Brookfield Engineering Laboratories Inc., USA).
These two hydrates undergo deliquescence under typical operating conditions of low-temperature heat storage systems (dehydration temperature 150 C, hydration condition: 25–50 C, and 13 mbar water vapor pressure) (Donkers and a. J., 2015, Van Essen et, ).
Background Sweetpotato (Ipomoea batatas L.) is one of the seven major food crops grown worldwide. Cold stress often can cause protein expression pattern and substance contents variations for tuberous roots of sweetpotato during low-temperature storage. Recently, we developed proteometabolic profiles of the fresh sweetpotatoes (cv. …
Boosting Low-Temperature Resistance of Energy Storage Devices by Photothermal Conversion Effects Fei Yu, Jialun Li, Yi Jiang, Liying Wang, Xijia Yang, Xuesong Li, Wei Lü,* and Xiaojuan Sun* Cite This: ACS Appl. Mater. Interfaces 2022, 14, 23400−23407 Read
1 INTRODUCTION In recent years, renewable energy has gained more and more attention as a low-carbon lifestyle. However, many renewable energy sources, such as onshore wind power, are volatile in their power output [], and using energy storage systems is a very effective solution []. ...
DOI: 10.1016/j.est.2021.103858 Corpus ID: 245463128 High energy density, flexible, low temperature resistant and self-healing Zn-ion hybrid capacitors based on hydrogel electrolyte Screen sensors are the most commonly used human-machine interfaces in our ...
This work provides a promising strategy for designing low-temperature-resistant FZIBs. Graphical Abstract We design a leather-based antifreeze gel electrolyte (AFLGE-30) with ethanol as a hydrogen bonding acceptor to be assembled into a flexible zinc ion battery.
This great variety consists, among other things, of four different jacket materials (PVC, iguPUR, PUR and TPE) for a wide range of mechanical or chemical influences. The jacket material also plays a very important role in terms of resistance to cold. So, our PVC cables are only suitable up to +5°C. In contrast, the PUR cables are resistant to ...
2. Overview of temperature-resistant cellulosic triboelectric materials As a novel energy harvesting and sensing device, TENGs show unrivaled potential under high-temperature environmental conditions, and temperature-resistant triboelectric materials are the basis for ...