JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 25
·1-13
·
IF 2.8
Xue Longlong,Xiong Shisheng
In the anti-wind–sand environment, it is challenging to find a single material that fulfills all the required functional application requirements, such as shielding performance, mechanical performance, chemical performance, reliability, and economic efficiency. Herein, a multi-layer electromagnetic shielding composite sheet specifically was designed for large military bases in anti-wind–sand environments. The composite material structure comprises laminated aluminum foil, PET film, and Oxford fabric, utilizing an acrylic emulsion pressure-sensitive adhesive that was modified with superior nano-SiO 2 . The results showed that the electromagnetic interference shielding of Al Mylar foil (0.03 mm) measured 88 dB, whereas the medium gauge foil recorded 84.7 dB after salt spray test for 288 h. The samples of Oxford fabric showed an increase in tensile and tearing strength as the fabric density increases, but the rate of increase decreases gradually. The shear and peel strengths of acrylic emulsion modified by hydrophobic nano-SiO 2 were 67.1 MPa and 24.3 N/m, respectively, with a blending ratio of 7 wt%. Finally, we handpicked 140 g/m 2 of Oxford cloth, 0.03 mm of aluminum foil with PET films, and acrylic emulsion pressure-sensitive adhesive containing 7 wt% hydrophobic nano-SiO 2 for the lamination. The samples have good aging performance, with electromagnetic shielding performance, shear strength, peel strength, and weight loss declining less than 10% at 85 °C and 85% RH for 1000 h.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
SURFACE ENGINEERING
·
2021
·
IF 3.169
Songnan Wang,Shiai Xu
Trivalent chromium (Cr(III)) was added into a titanium (Ti)-based solution in this study to prepare Ti/Cr(III) conversion coatings on the aluminium (Al) foil for lithium-ion battery package. Their surface morphology and chemical composition were characterized by field-emission scanning electron microscope (FE-SEM), energy-dispersive spectroscopy and X-ray photoelectron spectroscopy (XPS). The corrosion resistance and the adhesive strength between Al foil and hot melt adhesive (modified polypropylene film) were determined. The results reveal that the Ti/Cr(III) conversion coating is mainly composed of Al2O3, TiO2, Cr(OH)3 and Cr2O3, and possesses the best anticorrosive performance with a corrosion current density of 1.05 µA cm−2, which is one order of magnitude lower than pure Al foil. The adhesive strength between Ti/Cr(III)-treated Al foil and the adhesive is 14.3 N/15 mm with an increase of 250% compared with the pure Al foil, which meets the industry standard (12 N/15 mm).
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Qian Liu,Kunchi Xie,Jie Cheng,Jiawei Ruan,Haitao Yuan,Zhen Song,Zhiwen Qi
Peeling off cathode materials from aluminum (Al) foil is a crucial prerequisite for recycling end-of-life lithium-ion batteries (LIBs). In this work, a systematic research framework is proposed to investigate ionic liquids (ILs) as solvents for realizing the mild and efficient recovery of cathode materials and Al foil by dissolving the polyvinylidene fluoride (PVDF) binder. The COSMO-RS prediction of critical thermodynamic property, the deep learning-aided estimation of key physicochemical properties, and the quantum chemical calculation of basicity are first integrated for rational IL screening. Four ILs identified thereafter are further evaluated from the interaction energy point of view to assess their application potential. Among them, one IL is experimentally synthesized by considering the difficulty and affordability, of which the peeling and recycling performances are thoroughly investigated. The separated cathode materials and Al foil are analyzed by SEM-EDS, XPS, and XRD for structure characterization. Finally, theoretical calculations and FT-IR characterization are combined to shed some insight into the dissolution and deactivation mechanism of PVDF in the IL. This work can provide valuable reference for the high-efficiency pretreatment of end-of-life LIBs.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
CARBON
·
2023
·
IF 10.9
Zhou Yang,Jin Zhang,Changfeng Wang,Hanzhong Cui,Li Yang,Huiyan Zhang,Renguo Guan
Graphene has been recognized as reinforcement and/or protective coating for metal materials due to its unique electronic, mechanical properties and chemical inertness . Challenges of graphene agglomeration and weak graphene/metal interfacial bonding still exist during preparation. Here we report a novel method combining capillary-assisted self-assembly with nascent hydrogen reduction technique to one step coat Al foil with layered-stacking graphene. Al foil constructed slit is filled with graphene oxide (GO) suspensions and the generation of nascent hydrogen occurs at the GO/Al interface. The capillary force drives the GO flakes to layer-by-layer assemble on Al foil, as well as increases the reduction depth of GO. X-ray photoelectron spectroscopy (XPS) reveals that the reduced GO (rGO) binds with Al is not just through van der Waals forces, but with a strong interaction of developing C–O–Al bonds. The hydroxyl groups on GO plays an essential role in the formation of such C–O–Al configuration. Al foil coated with rGO through this capillary-assisted self-assembly with nascent hydrogen reduction method show good corrosion resistance compared to the pristine Al and directly drop-casted GO on Al. The proposed method can be readily applied to the fabrication of graphene/metal composites with improved interfaces.
研究领域:
材料科学
·
表面化学
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2019
·Vol. 26
·期 21
·21321-21328
·
IF 2.914
Zhou Qin,Wang Leyang,Xu Qi,Zhao Yuan
The oil-water separation is a popular issue and the removal of oil from bulk water is also meaningful especially in oil spill incident, which not only wastes valuable energy resources but also threatens the ecological system and human health. Superhydrophobic and superoleophilic materials are very promising for the efficient oil removal from bulk water. Reported herein was a novel and easily operated superhydrophobic surface dip coating from a paint-like suspension containing two different sizes TiO 2 and perfluorooctyltriethoxysilane. Aluminum foil substrate, which is flexile and cost-efficient, was bonded with commercial water-proof double-sided adhesive tape (DSAT) to fix the paint to improve the mechanical strength. The coated aluminum foil exhibited rapid sorption/desorption rate (267 L/h m 2 ), high oil sorption capacity (21 g/g), and excellent recyclability (≫ 15 recycling times). After 15 recycling times of sorption/desorption, the coated surface morphology still remained hierarchical micro- and nanostructures and the water contact angle still reached ~ 150°, indicating its superhydrophobic property. Meanwhile, the cost of oil removal of the coated material can match that of the commercial sorbent. We anticipate that the coated superhydrophobic aluminum foil will show outstanding performances on oil absorption and have good applications on a large scale.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
SURFACE AND INTERFACE ANALYSIS
·
2021
·Vol. 53
·期 6
·559-568
·
IF 1.607
Xinjie Chen,Chaoyuan Shen,Xufeng Xia,Shiai Xu
In this study, an environmentally friendly cerium (Ce) conversion coating was deposited onto the surface of aluminum (Al) foil for preparing the packaging material of lithium-ion batteries, and its morphology, composition, and formation mechanisms were investigated using scanning electron microscopy (SEM), atomic force microscopy (AFM), energy-dispersive spectroscopy (EDS), and X-ray photoelectron spectroscopy (XPS). The packaging material consisting of six layers was prepared by hot pressing using casting polypropylene (CPP) as the inner layer and maleic anhydride (MAH) grafted polypropylene (mPP) as the inner adhesive. The adhesion properties of untreated and Ce-treated Al foils were characterized by T-peeling test. The results show that Ce conversion coating is mainly composed of cerium dioxide (CeO 2 ) and cerium sesquioxide (Ce 2 O 3 ), and Ce treatment leads to a significant increase in the adhesive strength between Al foil and mPP.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2022
·Vol. 140
·期 8
·e53530
·
IF 3.057
Jiajun Xu,Shiai Xu
The aluminum (Al) foil used in Al/polymer laminated film of the soft package lithium-ion battery (LIB) is widely treated with a hexavalent chromate conversion coating to increase the adhesive strength and durability of the adhesive joint. Given that hexavalent chromate is toxic and carcinogenic, a novel and chromate-free method was developed in this study for surface modification of the Al foil using polydopamine (PDA) functionalization after titanium (Ti) chemical conversion. Ti conversion favors the deposition of PDA and introduces more functional groups of PDA on the Al surface. A novel polypropylene-based hot melt adhesive, MAH-g-(PP/PBE), was prepared by melt grafting of maleic anhydride on the blend of polypropylene and propylene-based elastomer for use as the inner adhesive of Al/polymer laminated film. Then, treated Al foil/MAH-g-(PP/PBE) composites were prepared and their interfacial adhesive strengths were investigated. The results show that the amine and catechol groups of PDA improve the interfacial adhesion between adhesive and Al foil by improving the wettability and interfacial interaction. The peel strength between MAH-g-(PP/PBE) and PDA functionalized Al foil after Ti conversion treatment can reach 3.55 N/mm, which is increased by 322% compared with that between MAH-g-PP and untreated Al foil. PDA functionalization after Ti chemical conversion and MAH-g-(PP/PBE) have great potential to improve interfacial adhesion of Al/polymer laminated film used in LIB package.
研究领域:
材料科学
·
化学工程
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Linghong Zhang,Yi Liao,Meng Ye,Wenqin Cai,Meng Xiao,Changyan Hu,Benhe Zhong,Fang Wan,Xiaodong Guo
Large quantities of spent lithium-ion batteries (LIBs) will inevitably be generated in the near future because of their wide application in many fields. It will cause not only resource waste but also environmental pollution if these spent batteries are not properly handled. Until now, the recycling of spent lithium manganate batteries has centered on high-valuable elements such as lithium; however, manganese element and current collector Al foil have not yet attracted wide attention. In this work, aluminum-doped manganese dioxide was synthesized by overall recycling cathode active materials and current collector Al foil from a spent lithium manganate battery. Employing such aluminum-doped manganese dioxide as the cathode material of aqueous Zn batteries, it displays better electrochemical performance than manganese dioxide prepared by only recycling the cathode active materials. The overall recycling not only simplifies the recycling process but also realizes high-value recycling of spent lithium manganate batteries. We offer new tactics for overall recycling of cathodes from spent LIBs and designing high-performance manganese dioxide cathodes for aqueous Zn batteries.
研究领域:
材料科学
·
环境科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CORROSION SCIENCE
·
2020
·
IF 6.479
Ning Peng,Libo Liang,Yuqing Wen
This study investigated the adsorption of hydrogen bubbles and tunnel formation on aluminium foil during direct current (DC) electrochemical etching in an electrolyte with and without silicone oil additive. The results indicated that the etched tunnels obtained in the electrolyte containing silicone oil were more uniformly distributed with a more consistent size and length. This was attributed to the additive ability to facilitate the desorption of large bubbles on the aluminium surface, resulting in uniform corroded regions. Moreover, the generated narrow tunnels can accelerate the hydrogen evolution inside the tunnels, resulting in increasing the length of the etched tunnels.
研究领域:
材料科学
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电化学
·
金属腐蚀与防护
·
表面工程
✓ 已验证
DOI
高影响因子
JOURNAL OF ELECTRONIC MATERIALS
·
2024
·Vol. 53
·期 4
·2026-2039
·
IF 2.2
Bai Guangzhu,Chen Zhibin,Liu Jie,Wang Fang,Zhang Yusheng
Sintered foils are currently being considered as a promising material for anode foils in capacitors due to their high specific capacitance and anti-buckling performance, which meet the requirements for capacitor winding. In this article, sintered foils with added starch were produced using a protective atmosphere sintering process. The effect of starch addition in the range of 0–50 vol% on the specific capacitance and anti-buckling performance of the sintered foils was evaluated. Scanning electron microscope (SEM) analysis confirmed the formation of the pores in the sintered foils due to the addition of starch. These pores play a crucial role in improving the specific capacitance and enhancing the anti-buckling performance of the sintered foils. However, excessive amounts of starch can have a negative impact on the specific capacitance of the sintered foils which initially decreased, then increased, and finally decreased with increasing starch content. On the other hand, the anti-buckling performance increased with increasing starch content. At 30 vol% starch addition, a high specific capacitance of 0.886 μ F/cm 2 and an anti-buckling performance of more than 120 times were obtained, meeting the requirements for anode foils in aluminum electrolytic capacitors. The specific capacitance of the sintered foils was predicted using the close-packed packing model, which can help establish a powder metallurgy method for preparing anode foil materials with high specific capacitance and anti-buckling performance for aluminum electrolytic capacitors. Graphical
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2021
·
IF 7.46
Qiao-Yan Jiang,Ding Li,Yuhui Liu,Zheng-Sheng Mao,Youjia Yu,Ping Zhu,Qilan Xu,Yang Sun,Li Hu,Jie Wang,Jin Chen,Feng Chen,Yue Cao
A novel, recyclable, portable, and low-cost SERS sensor-AuBPs@MoS 2 @tinfoil box is fabricated layer-by-layer by self-assembly method for the first time, which achieved the purpose of high throughput SERS tracking. Diquat (DQ) is one of the most widely used herbicides in the world since paraquat was banned. Benefiting from the “hot spots” generated by AuBPs@MoS 2 , the sensor successfully realizes straightforward SERS recognition of DQ in complex compounds, which detection limit is as low as 1.0 × 10 −15 M. The preprocessing is not required for the detection of real samples, which promotes the practical application of forensic medicine and environmental engineering.
研究领域:
环境科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Jiajun Xu,Shiai Xu,Junzhe Hao,Hailian Cao,Han Miao
Good adhesive strength and joint durability are necessary for aluminum (Al)/polymer laminated film for lithium-ion battery packages. A pretreatment method involving alkaline degreasing followed by acid pickling was employed to treat the Al foil surface to facilitate the deposition of trivalent chromium [Cr(III)] conversion coating on the surface. The adhesive strength between propylene-based elastomer grafted glycidyl methacrylate (GMA-g-PBE) and Cr(III)-converted Al foil pretreated with 0.5 M HF pickling was 51% higher than Cr(III)-converted Al foil without pretreatment. Moreover, the effect of different pretreatments on the interfacial bond strength of GMA-g-PBE/Cr(III)-converted Al foil was studied from macroscopic to microscopic perspectives. The results indicate that the pretreatment of 0.5 M HF pickling results in complete coverage of the Cr(III) compounds and the formation of a thicker Cr(III) conversion coating on the Al foil compared to other pretreatments. A higher content of Cr(III) compounds results in an increased surface free energy of Cr(III)-converted Al foil, improving the wettability of adhesive melt on the substrate and enhancing the adhesion strength. Moreover, quantum chemical calculations and molecular dynamics simulations were used to investigate the interface bonding mechanism, and the results indicate that GMA in the adhesive exhibits a higher binding energy with Cr(III) oxides and hydroxides compared to Al oxides and hydroxides.
研究领域:
材料科学
·
化学工程
·
计算化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）