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A facile path from fast synthesis of Li-argyrodite conductor to dry forming ultrathin electrolyte membrane for high-energy-density allsolid-state lithium batteries

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Journal of Energy Chemistry 2022年第11期31卷 309-316,I0008页

作者： Zhao Jiang Hongling Peng Jingru Li Yu Liu Yu Zhong Changdong Gu Xiuli Wang Xinhui Xia jiangping tu State Key Laboratory of Silicon Materials Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Provinceand School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027ZhejiangChina CCTEG Chongqing Research Institute Chongqing 400039China

All-solid-state lithium batteries(ASSLBs),utilizing sulfide solid electrolyte,are considered as the promising design on account of their superior safety and high energy density,whereas the time-consuming preparation process of sulfide electrolyte powders and the thickness of electrolyte layer hinder their practical ***,an innovative ultimate-energy mechanical alloying plus rapid thermal processing approach is employed to rapidly synthesize the crystalline Argyrodite-type conductor Li_(5.3)PS_(4.3)ClBr_(0.7)(LPSCIBr)with superior ionic conductivity(11.7 mS cm^(-1)).Furthermore,to realize the higher energy density of the battery,an ultrathin LPSCIBr sulfide electrolyte membrane with superior ionic conductivity of 6.5 mS cm^(-1)is fabricated with the aid of polytetrafluoroethylene(PTFE)binder and the reinforced cellulose ***,a simple solid electrolyte interphase(SEI)is constructed on the surface of lithium metal to enhance anodic *** from the joint efforts of these merits,the modified ASSLBs with a high cell-level energy density of 311 Wh kg^(-1) show an excellent cyclic *** assembled all-solid-state Li_(2) S/Li pouch cell can operate even under the severe conditions of bending and cutting,demonstrating the enormous potential of the sulfide electrolyte membrane for ASSLBs application.

关键词： Sulfide electrolyte Thermal processing Ultrathin membrane Ionic conductivity All-solid-state lithium battery

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Co-construction of advanced sulfur host by implanting titanium carbide into Aspergillus niger spore carbon

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Chinese Chemical Letters 2022年第8期33卷 3981-3986页

作者： Rongfan Zhou Shenghui Shen Yu Zhong Ping Liu Yongqi Zhang Lingjie Zhang Xiuli Wang Xinhui Xia jiangping tu State Key Laboratory of Silicon Materials Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Provinceand Department of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China Yangtze Delta Region Institute(Huzhou)&Institute of Fundamental and Frontier Science University of Electronic Science and Technology of ChinaHuzhou 313000China

It is of great importance to directionally construct advanced carbon host to achieve high-performance carbon/sulfur cathodes for lithium sulfur batteries(LSBs).Herein,we report a unique hollow pumpkinlike carbon with notable rich-wrinkle microstructure and intrinsically dual doping with N&P elements via a facile annealing process of Aspergillus niger ***,highly conductive polar absorbents,Ti C nanoparticles,are in situ implanted into the above Aspergillus niger spore carbon(ANSC)by carbothermal reaction,accordingly forming high-performance ANSC/TiC composite host for ***,TiC nanoparticles play dual roles of not only pore formation in ANSC matrix but also enhancement of chemical absorption with *** the positive synergistic effect between N&P co-doped ANSC matrix and Ti C polar absorbent,the designed ANSC/Ti C-S cathodes show unique advantages including larger accommodation space for sulfur,higher surface area,enhanced conductivity and better chemical absorption with soluble polysulfide ***,the ANSC/Ti C-S cathodes are endowed with good rate performance(496 mAh/g at 0.5 C)and enhanced long-term cycling stability(736 mAh/g with a capacity retention of 78.8%at 0.1 C after 100 cycles).Our research opens a new door to controllably design advanced composite cathodes from microorganisms for application in lithium sulfur batteries.

关键词： Aspergillus niger Spore carbon Titanium carbide Cathode Lithium sulfur batteries

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Quasi‑Solid Electrolyte Interphase Boosting Charge and Mass Transfer for Dendrite‑Free Zinc Battery

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Nano-Micro Letters 2023年第4期15卷 223-237页

作者： Xueer Xu Yifei Xu Jingtong Zhang Yu Zhong Zhongxu Li Huayu Qiu Hao Bin Wu Jie Wang Xiuli Wang Changdong Gu jiangping tu State Key Laboratory of Silicon Materials Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Provinceand School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China Institute for Composites Science Innovation(InCSI)and State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101People’s Republic of China Zhejiang Laboratory Hangzhou 311100People’s Republic of China Department of Engineering Mechanics School of Aeronautics and AstronauticsZhejiang UniversityHangzhou 310027People’s Republic of China

The practical applications of zinc metal batteries are plagued by the dendritic propagation of its metal anodes due to the limited transfer rate of charge and mass at the electrode/electrolyte *** enhance the reversibility of Zn metal,a quasi-solid interphase composed by defective metal-organic framework(MOF)nanoparticles(D-UiO-66)and two kinds of zinc salts electrolytes is fabricated on the Zn surface served as a zinc ions ***,anions in the aqueous electrolytes could be spontaneously anchored onto the Lewis acidic sites in defective MOF *** the synergistic effect between the MOF channels and the anchored anions,Zn^(2+)transport is prompted ***,such quasi-solid interphase boost charge and mass transfer of Zn^(2+),leading to a high zinc transference number,good ionic conductivity,and high Zn^(2+)concentration near the anode,which mitigates Zn dendrite growth ***,unprecedented average coulombic efficiency of 99.8%is achieved in the Zn||Cu cell with the proposed quasi-solid *** cycling performance of D-UiO-66@Zn||MnO_(2)(~92.9%capacity retention after 2000 cycles)and D-UiO-66@Zn||NH_(4)V_(4)O_(10)(~84.0%capacity retention after 800 cycles)prove the feasibility of the quasi-solid interphase.

关键词： Mass transfer Defect engineering Quasi-solid electrolyte interphase Zinc metal anode Zinc batteries

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Hydrothermal synthesized porous Co(OH)_2 nanoflake film for supercapacitor application

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Chinese Science Bulletin 2012年第27期57卷 4215-4219页

作者： ZHANG YongQi XIA XinHui KANG Jing tu jiangping State Key Laboratory of Silicon Materials and Department of Materials Science and Engineering Zhejiang UniversityHangzhou 310027China

Porous Co(OH)2 film directly grown on nickel foam is prepared by a facile hydrothermal *** as-prepared Co(OH)2 film possesses a structure consisting of randomly porous nanoflakes with thicknesses of 20-30 *** capacitive behavior of the Co(OH)2 film is investigated by cyclic voltammograms and galvanostatic charge-discharge tests in 2 mol/L *** porous Co(OH)2 film exhibits a high discharge capacitance of 935 F g-1 at a current density of 2 A g-1 and excellent rate *** specific capacitance keeps a capacitance of 589 F g-1 when the current density increases to 40 A *** specific capacitance of 82.6% is maintained after 1500 cycles at 2 A g-1.

关键词：超级电容器多孔性水热法合成薄膜纳米 Co(OH)2 应用循环伏安

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时效对超级双相不锈钢析出相演变的影响

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特殊钢 2024年第1期45卷 77-81页

作者：骆仁智胡文豪王福明涂江平陶应啟沈伟浙江省冶金研究院有限公司杭州310015 北京科技大学冶金与工程学院北京100083 浙江大学材料科学与工程学院杭州310030

通过在850℃时效处理研究了S32750超级双相不锈钢析出相的析出行为。采用Thermo-Calc热力学软件预测析出相及相组成,采用OM,FE-SEM和EDS对S32750超级双相不锈钢铸坯不同时效状态下的样品进行全面分析,利用K-J-M-A模型进行σ相析出动力... 详细信息

通过在850℃时效处理研究了S32750超级双相不锈钢析出相的析出行为。采用Thermo-Calc热力学软件预测析出相及相组成,采用OM,FE-SEM和EDS对S32750超级双相不锈钢铸坯不同时效状态下的样品进行全面分析,利用K-J-M-A模型进行σ相析出动力学拟合。实验结果表明:850℃时效过程中,σ相优先在铁素体内部和双相晶界处析出,直至铁素体相耗尽;σ相的析出动力学控速环节主要是:初始阶段形核控速和时效40 min后的元素扩散控速;除σ相外,时效过程中还会析出χ相和Cr2N相。其中χ相属于亚稳定相,主要在时效前期析出,随着时效时间的延长最终转化成σ相。

关键词：双相不锈钢析出相析出动力学时效

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Hydrophobic epoxy resin coating with ionic liquid conversion pretreatment on magnesium alloy for promoting corrosion resistance

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Journal of Materials Science & Technology 2020年第2期37卷 9-18页

作者： Liting Guo Changdong Gu Jie Feng Yongbin Guo Yuan Jin jiangping tu School of Materials Science and Engineering State Key Laboratory of Silicon MaterialsZhejiang UniversityHangzhou310027China Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province Hangzhou310027China College of Materials Science&Engineering Zhejiang University of TechnologyHangzhou310014China Zotye Automobile Co.Ltd Hangzhou310018China

A hydrophobic epoxy resin coating with an environmental-friendly deep eutectic solvent(DES)-based conversion pretreatment was proposed to enhance the corrosion resistance of magnesium *** hydrophobic epoxy resin coatings on the AZ31B magnesium alloy with and without the DES-based conversion pretreatment were thoroughly *** is found that the DES-based conversion film on the AZ31B magnesium alloy is mainly composed of MgH2,MgO and ***,the conversion film possesses porous structure,which provides more anchor points for the following epoxy resin ***,without the DES-conversion pretreatment,the epoxy resin is difficult to be attached on the substrate during the dip-coating *** double layered hybrid coating system promotes the corrosion resistance of the magnesium alloys significantly,which can be ascribed to the unique architecture and component including the hydrophobicity of the surface layer,the dense and interlocked epoxy resin,and the corrosion resistant DES-based conversion pretreatment.

关键词： Mg alloy Deep eutectic solvent Corrosion resistance Double layered hybrid coating

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INTERNAL CHLORINATION OF Ni-Cr-Ce ALLOY EXPOSURE TO CHLORINE AT 575℃

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Transactions of Nonferrous Metals Society of China 1996年第1期6卷 106-109页

作者： tu jiangping Liu Maoshen Mao Zhiyuan Li Zhizhang Department of Materials Science and Engineering Zhejiang University Hangzhou 310027

The kinetics of internal chlorination of Ni-Cr-Ce alloy in chlorine at 575℃ has been *** chlorination of Ni-Cr-Ce alloy occurred to formation of CrCl_(2) and CeCl_(3) solid precipi-tates which is thermodynamically stable and has lower vapor pressure at the temperature along grain *** initial corrosion stage,the internal chlorination rate nearly followed parabolic rate law,the internal chlorination was accompanied by the consumption of the alloy by volatilization corrosion which obeyed a linear rate equation,the thickness of the internal chlorination region would be governed by a paralinear rate *** a sufficiently long period of corrosion,the rate of internal chlorina-tion would be equal to the rate of overall metal consumption,the depth of internal chlorination approaches a steady state *** of Ce to Ni-Cr alloy increased the degree of internal chlorination.

关键词： internal chlorination vapor pressure chloride

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Erosion Characteristics of Aluminum-based Metal Matrix Composites in Slurry Environments

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材料科学与工程学报 2000年第Z1期20卷 266-274页

作者： tu jiangping Department of Chemical Engineering Hiroshima University Kagamiyama 1-4-1Higashi-Hiroshima 739-8527 Japan Department of Materials Science and Engineering Zhejiang University Hangzhou 310027 China

The erosion resistance of the Al18B4O33 whisker reinforced AC4C Al composites in water and saline slurry were investigated using a jet-in-slit rig. Erosion tests were performed at slurry velocities between 6.4 m/s to 15.2 m/s and at normal impact angle. The detachment of flake and dislodgement of whisker were identified as the major mechanisms of material removal in slurry environments. The composites showed better erosion resistance due to the protection of the matrix by the whisker at low slurry velocities. Because of reduced fracture strain, the erosion rates of the composites were generally greater than that of the unreinforced alloy at high slurry velocities. Owing to interfacial reaction which resulted in decrease in hardness and fracture strain,the T6 treatment for the composites had a deleterious influence on the erosion resistance. By considering the material removal processes in the water slurry, a simple rationalization of the inverse dependence of slurry erosion rate on Hεf was obtained. In the saline slurry, there exists a strong synergistic effect between erosion and corrosion. The volume loss of the composites was enhanced through cracking of flakes and detaching of whisker induced by stress and corrosion.

关键词： slurry erosion erosion-corrosion flow-induced corrosion metal matrix composites

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All-solid-state electrochromic devices based on WO3‖NiO films:material developments and future applications

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Science China Chemistry 2017年第1期60卷 3-12页

作者： Ding Zhou Dong Xie Xinhui Xia Xiuli Wang Changdong Gu jiangping tu State Key Laboratory of Silicon Materials Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China Cyrus Tang Center for Sensor Materials and Applications Zhejiang University Hangzhou 310027 China

Electrochromism refers to the persistent and reversible change of optical properties by an applied voltage ***(EC)devices have been extensively studied because of their commercial applications in smart windows of green buildings,display devices and thermal control of *** this review,a basic EC device design is presented based on useful oxides and solid-state *** focus on the state-of-the-art research activities related to the structures of tungsten oxide(WO_3)and nickel oxide(NiO),summarizing the strategies to improve their EC performances and further applications of devices.

关键词：电致变色器件商业应用 NiO WO3 薄膜材料全固态应用设备光学性能

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High-energy cathode materials for Li-ion batteries: A review of recent developments

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Science China(Technological Sciences) 2015年第11期58卷 1809-1828页

作者： ZHANG YiDi LI Yi XIA XinHui WANG XiuLi GU ChangDong tu jiangping State Key Laboratory of Silicon Materials Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering Zhejiang University

Lithium ion batteries(LIBs) represent one of the most promising solutions for environmentally friendly transportation such as electric vehicles. The demand for high energy density, low cost and environmentally friendly batteries makes high-capacity cathode materials very attractive for future LIBs. Layered Li NixCoyMnzO2(x+y+z=1), Li-rich oxides and Li-V-O compounds have attracted much attention due to their high capacities in recent years. In this review, we focus on the state-of-the-art research activities related to Li NixCoyMnzO2, Li-rich oxides and Li-V-O compounds, including their structures, reaction mechanisms during cycling, challenges and strategies that have been studied to improve their electrochemical performances.

关键词：锂离子电池高能量密度正极材料电化学性能电动汽车交通工具科研活动循环过程

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