JOURNAL OF PHYSICS D-APPLIED PHYSICS
·
2019
·Vol. 52
·期 11
·115501
·
IF 2.829
Hengyue Li,Hui Guo,Sichao Tong,Keqing Huang,Chujun Zhang,Xiaofeng Wang,Dou Zhang,Xiaohua Chen,Junliang Yang
Supercapacitors have rapidly evolved into one of the important components in energy storage technology with the capability of storing and discharging energy very quickly and effectively. The fabrication of a high-performance supercapacitor carbon electrode via a large-scale printing process can accelerate its commercialization. Herein, a high-performance supercapacitor carbon electrode is processed via a micro-gravure roll-to-roll (R2R) printing technique, and the properties are optimized through web tension, printing speed and morphology control. The supercapacitor with carbon electrodes fabricated by R2R micro-gravure printing shows a capacitance of 151.15 F g−1 and equivalent series resistance (ESR) of 0.37 Ω, which are comparable to the carbon electrodes fabricated via conventional coating. Furthermore, the electrodes show highly promising performance in the application of solid-state supercapacitors, and the light-emitting diode working for nearly 30 s. The research demonstrates that the low-cost, large-scale R2R micro-gravure printing process can be used to produce high-quality electrodes for the supercapacitor, which will accelerate the development of a fully R2R micro-gravure printed supercapacitor and its commercialization.
研究领域:
材料科学
·
能源技术
·
印刷工程
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Xun Luo,Wenyan Lv,Hongyu Luo,Lier Wang,Pan Liu,Xin Deng,Zhiping Liu,Renbo Wei,Zhiyuan Xiong,Bo Tang
Fog significantly reduces the visibility of the front windshield of automobile during driving, which can be mitigated by anti-fogging films. Here, an innovative strategy is reported to massively fabricate anti-fogging films via roll-to-roll coating based on anti-fogging coatings, which possess the sustainable anti-fogging performance, the outstanding wear resistance and adhesion strength. Firstly, anti-fogging coatings are developed from the amphiphilic random copolymers containing light-curable and heat-curable groups. After investigating the influences of copolymer hydrophilicity and curing conditions, anti-fogging films exhibiting the optimal anti-fogging performances are successfully prepared, which can maintain clarity and transparency as the time of water (80 °C) steaming is up to 9 h, and withstand 9 cycles of anti-fogging durability testing. X-ray photoelectron spectroscopy and water contact angle were employed to reveal the failure mechanism of anti-fogging durability for anti-fogging films. Additionally, the hardness, adhesion strength and elongation at break of anti-fogging films correspondingly reach up to 0.233 ± 0.0010 GPa, 0.674 ± 0.0218 MPa and 13.4 ± 1.005 %, which are at the forefront of anti-fogging coatings. Finally, the mass-produced anti-fogging films via roll-to-roll coating can effectively prevent fog to ensure the good visibility of the front windshield while driving, which will facilitate the development of basic research and industrialization of anti-fogging coatings.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2017
·Vol. 29
·期 41
·1703238
·
IF 19.791
Sen Lin,Xiaopeng Bai,Haiyang Wang,Haolun Wang,Jianan Song,Kai Huang,Chang Wang,Ning Wang,Bo Li,Ming Lei,Hui Wu
Electrochromic smart windows (ECSWs) are considered as the most promising alternative to traditional dimming devices. However, the electrode technology in ECSWs remains stagnant, wherein inflexible indium tin oxide and fluorine-doped tin oxide are the main materials being used. Although various complicated production methods, such as high-temperature calcination and sputtering, have been reported, the mass production of flexible and transparent electrodes remains challenging. Here, a nonheated roll-to-roll process is developed for the continuous production of flexible, extralarge, and transparent silver nanofiber (AgNF) network electrodes. The optical and mechanical properties, as well as the electrical conductivity of these products (i.e., 12 Ω sq −1 at 95% transmittance) are comparable with those AgNF networks produced via high-temperature sintering. Moreover, the as-prepared AgNF network is successfully assembled into an A4-sized ECSW with short switching time, good coloration efficiency, and flexibility.
研究领域:
材料科学
·
纳米技术
·
光学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nature Energy
·
2023
·Vol. 8
·期 7
·703-713
·
IF 56.7
Yang Cheng,Ma Huachun,Yuan Ruichuan,Wang Kuangyu,Liu Kai,Long Yuanzheng,Xu Fei,Li Lei,Zhang Haitian,Zhang Yingchuan,Li Xiaoyan,Wu Hui
Prelithiation can boost the performance of lithium-ion batteries (LIBs). A cost-effective prelithiation strategy with high quality and high industrial compatibility is urgently required. Herein we developed a roll-to-roll electrodeposition and transfer-printing system for continuous prelithiation of LIB anodes. By roll-to-roll calendering, pre-manufactured anodes could be fully transfer-printed onto electrodeposited lithium metal. The interface separation and adhesion during transfer printing were related to interfacial shear and compressive stress, respectively. With the facile transfer-printing prelithiation, high initial Coulombic efficiencies of 99.99% and 99.05% were achieved in graphite and silicon/carbon composite electrode half cells, respectively. The initial Coulombic efficiencies and energy densities in full cells were observed to be significantly improved with the prelithiated electrodes. The roll-to-roll transfer printing provides a high-performance, controllable, scalable and industry-adaptable prelithiation in LIBs.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2021
·
IF 7.267
Chao Peng,Hang Su,Jing Li,Qiuyue Duan,Qianhui Li,Junyan Xiao,Zhiliang Ku,Jie Zhong,Wei Li,Yong Peng,Fuzhi Huang,Yi-bing Cheng
Compared with traditional rigid perovskite solar cells fabricated on glass, flexible perovskite solar cells have a wider range of applications due to their lightweight and bendability , which have attracted great attention. Besides, carbon materials have shown some advantages of abundance, long-term stability and appropriate energy level as top electrode in perovskite solar cells. However, the reports of flexible devices based on carbon electrode are quite rare for the mismatch between the configuration of flexible perovskite solar cells and common carbon electrode techniques. Here, we introduce carbon film electrode into flexible perovskite solar cells for the first time. A new composite carbon film electrode is prepared on a highly conductive and flexible substrate of conductive cloth. Considerable PCEs of 15.37% and 14.05% have been obtained in small area (0.1 cm 2 ) and large area (1 cm 2 ) carbon based flexible devices, respectively. The comparable performance with standard Au electrode device, enhanced stability and suitability for roll-to-roll manufacturing reveals promising application of this low-cost composite carbon electrode.
研究领域:
材料科学
·
可再生能源
·
太阳能电池
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Weiwei Ping,Bangzhuang Xue,Fan Zhang,Xianzhun Huang,Lihan Chen,Hongfa Xiang
Separators can physically inhibit the Li dendrite from piercing through to prevent the short-circuit. To enhance the energy density of Li metal batteries, separators should be thinner and stronger (<20 µm, >25 MPa). In this work, a ≈10 µm cellulose composite separator by roll-to-roll technique is fabricated. Within the films, the Cu(OH) 2 nanoclusters are uniformly confined in the cellulose matrix without any agglomeration, enhancing the mechanical strength to ≈100 MPa. The coordinated copper ions help open the ion transporting channel, enabling the films to exhibit an ion conductivity of ≈2.14 mS cm −1 , among the highest reported values of separators. Compared with the polypropylene separators, the cellulose composite films display excellent cycling stability and effective Li dendrite inhibition with Li anodes. The symmetric cell Li||Li can stable cycle for more than ≈1800 h at 0.5 mA cm −2 with the plating/stripping time of ≈1 h. The cell LiFePO 4 ||Li shows an excellent rate performance of 5C (1C = 170 mA g −1 ). The full cell LiNi 0.8 Co 0.1 Mn 0.1 O 2 ||Li maintains a specific capacity of ≈162 mAh g −1 for ≈420 cycles at 1C (1C = 200 mAh g −1 ). The cellulose composite films enable scalable production with excellent electrolyte-wettability and non-flammability, demonstrating the promise in Li metal batteries with high safety and energy densities.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米复合材料
·
电池技术
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2025
·
IF 26.8
Junjie Zheng,Zhen Li,Ning Wei,Mengyue Gao,Tianxiang Bai,Junyan Zhang,Xinhai Zhang,Meifang Zhu,Yanhua Cheng
Aerogels have been considered as super thermal insulators. However, they often exhibit less satisfactory mechanical properties for textile application due to their fragility and poor processability. These problems are overcome through a twisting-induced fibrillation method, using 2D nanofiber membranes as mediators, to process aerogel particles into continuous macroscopic yarns based on a roll-to-roll format. A low concentration of strong nanofiber host in twisted form provides structural support to the aerogel particles and preserves their porous architecture. Despite the high-volume ratio (≈78%) of aerogel particles, the aerogel yarns show high strength, ideal flexibility, and impressive thermal insulation properties. Textiles woven with the aerogel yarns are warmer than cashmere. The aerogel textile is extremely stable under temperatures of −196 and 100 °C, mechanical deformation, and even washing. This technology provides a flexible platform to extend the function (e.g., dyeability, hydrophobicity, and Joule heating) of aerogel yarns and textiles to suit various use scenarios.
研究领域:
材料科学
·
纳米技术
·
纺织工程
·
隔热技术
·
高分子科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 81
·77701-77708
·
IF 3.289
Yaxiong Guo,Hongwei Lei,Borui Li,Zhao Chen,Jian Wen,Guang Yang,Guojia Fang
We successfully constructed a heterojunction structure composed of Ag2S nanocrystals/P3HT conjugated polymer with a relatively high absorption coefficient and broader absorption from the ultraviolet to near-infrared region. The assembled P3HT:Ag2S devices exhibited outstanding short-circuit current density around 19 mA cm−2. Meanwhile, we demonstrated that a low-temperature solution-processed nanocrystalline SnO2 thin film prepared by a facile synthesis method can be an excellent electron transport layer (ETL) material for hybrid solar cells. The SnO2 based hybrid solar cells exhibit an open circuit voltage of 280 mV, which was 100 mV higher than those for devices without SnO2. Based on the above work, we hypothesized that the higher power conversion efficiency is due to the excellent properties of nanocrystalline SnO2 films, such as high electron mobility and excellent transparency at visible wavelength and enhanced exciton dissociation efficiency, and better energy level alignment between FTO and Ag2S for greater photovoltage retention. The simple low temperature low energy consumption, and low-cost soft-chemical process is compatible with the roll-to-roll manufacturing of low-cost hybrid solar cells on flexible substrates.
研究领域:
材料科学
·
太阳能
·
纳米技术
·
有机电子学
✓ 已验证
产品关联
DOI
高影响因子
Science China-Materials
·
2023
·Vol. 66
·期 7
·2863-2871
·
IF 8.1
Lu Runzhi,Fang Zizheng,Jiang Yongbo,Zhao Qian
Ice templating that uses water as a green porogen has emerged as an eco-friendly and promising approach to fabricating porous materials. However, foams prepared from aqueous solutions are typically water-intolerant owing to their hydrophilic nature. Hydrophobic foams can also be prepared through the freezing of dispersions, but extra organic solvents are often required, making it environmentally unfriendly. Herein, we develop photo-cross-linking of ice templated emulsions to produce multifunctional porous materials based on emulsifier-free photosensitive emulsions. The whole porogenation process is relatively fast (within several minutes) without freeze-drying, facilitating the roll-to-roll continuous production of porous polymers. The material versatility can be expanded with different formulations, including soft foams with high stretchability, rigid materials providing tunable shape memory properties, and hierarchical porous ceramics enabling thermal insulation. This approach is environmentally friendly and economically attractive, and the principle can be extended to diverse precursors for the production of functionalized porous materials.
研究领域:
材料科学
·
化学工程
·
环境科学
·
聚合物科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2020
·Vol. 8
·期 40
·20970-20978
·
IF 11.301
Chao Chang,Xiao Nie,Xiaoxiang Li,Peng Tao,Benwei Fu,Zhongyong Wang,Jiale Xu,Qinxian Ye,Jingyi Zhang,Chengyi Song,Wen Shang,Tao Deng
Converting solar energy into storable thermal energy within organic phase change materials has emerged as a promising way to overcome solar intermittency and continuously harness solar-thermal energy for many heating-related applications. The low thermal conductivity and leakage issue of the phase change materials, however, limit scalable solar-thermal energy storage and their practical applications. Inspired by the dynamic thermoregulation behavior of butterfly wings, here we demonstrate rapid roll-to-roll solar-thermal energy harvesting within flexible form-stable composite phase change materials. Instead of static charging the bulk materials, the thin composite sheets are exposed to solar radiation for rapid charging while being continuously rolled. Due to shortened heat-diffusion distance and rollability of the composites, it achieves fast uniform solar-thermal energy storage within the bulk storage media. The flexibility of charged composites also enables broad tuning of the discharging behavior, and offers the possibility to explore wearable thermotherapy and other flexible solar-thermal applications.
研究领域:
材料科学
·
可再生能源
·
太阳能
·
热能存储
·
复合材料
·
仿生学
✓ 已验证
产品关联
DOI
高影响因子
Nature Synthesis
·
2025
·
IF 20
Tang Mengyao,Dong Shuai,Yue Ke,Zhao Jinhui,Li Weiping,Wang Xuefeng,Chen Peng,Liu Ruizhi,Wen Rui,Song Shuangyu,Liu Yujing,Nai Jianwei,Wang Jiawei,Zhu Qiaonan,Cheng Liwei,Lan Hao,Wu Liqiang,Zhou Bin,Yang Daojun,Tao Xinyong,Guo Lin,Wang Hua
Sodium-ion batteries have been attracting extensive attention in both academic and industrial fields. However, the lack of large-area and ultrathin sodium (Na) metal foil hinders basic research on and commercialization of energy-dense Na-ion batteries. Here we successfully fabricated a metre-length, ultrathin (≤50 μm), mechanically strengthened Na metal foil by a roll-to-roll calendaring process with interfacial lubrication and functional modification. By developing self-lubricating polydimethylsiloxane as the multifunctional agent, the poor processibility of metallic Na is addressed by forming a mechanically strong interface as well as a surface lubricant film during rolling. Furthermore, polydimethylsiloxane-derived (Si–O) n -Na interphases can guide Na + -ion interfacial diffusion and enable a robust solid electrolyte interphase. Consequently, the large-area ultrathin Na foil exhibits a stable electrode potential and stripping capacity, as well as prolonged lifespan compared with bare Na anodes. This approach enables the realization of amp-hour-level Na metal pouch cells under a low negative-to-positive capacity ratio of 1.9, showing an energy density of 180.2 Wh kg −1 . This scalable ultrathin Na foil establishes a materials foundation for fundamental studies on Na-ion batteries and the potential manufacture of high-energy-density Na metal batteries.
研究领域:
储能
·
材料科学
·
电化学
·
电池技术
·
纳米制造
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2024
·
IF 2
Zheng-En Piao,Jingzhou Guo,Dan Wang,Wei Mao,Yuan Pu,Jian-Feng Chen
2-(4-tert-Butylphenyl)-5-(4-biphenyl)-1,3,4-oxadiazole (PBD) is one of the most widely used electron transport layer materials in optoelectronic devices, and studies on the solubility of PBD in various solvents are critical for development of solution-processable roll-to-roll electronic devices. In this study, the isothermal saturation method is used to determine the solubility data of PBD in 12 commonly used organic solvents. The experimental solubility of PBD increases gradually with enhanced temperature for the examined temperature range of 283.15–323.15 K in n-hexane, methanol, ethanol, isopropanol, tetrahydrofuran (THF), acetonitrile, ethyl acetate, N-methylpyrrolidone (NMP), toluene, and chlorobenzene, while the temperature ranges were 293.15–333.15 K and 273.15–303.15 K for dimethyl sulfoxide and dichloromethane, respectively. The obtained solubility values of PBD are correlated by three models including the modified Apelblat equation, λh equation, and Yaws equation. Comparison of the calculated Akaike information criterion values resulted in selecting the optimal model for each solvent. Of the five solvents calculated, n-hexane, methanol, toluene, THF, and NMP, the λh equation provides an optimal fit. Both the modified Apelblat equation and the Yaws equation work well in chlorobenzene. Among the other six solvents, the fit of the Yaws equation is the best. These results of solubility provide the basic data for the synthesis of PBD nanoparticles via high-gravity-assisted antisolvent precipitation processing.
研究领域:
材料科学
·
化学工程
·
物理化学
·
光电子学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）