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| 1 | Electrolyte Concentration Regulation Boosting Zinc Storage Stability of High-Capacity K0.486V2O5 Cathode for Bendable Quasi-Solid-State Zinc Ion Batteries显示文摘Vanadium-based cathodes have attracted great interest in aqueous zinc ion batteries(AZIBs)due to their large capacities,good rate performance and facile synthesis in large scale.However,their practical application is greatly hampered by vanadium dissolution issue in conventional dilute electrolytes.Herein,taking a new potassium vanadate K0.486V2O5(KVO)cathode with large interlayer spacing(~0.95 nm)and high capacity as an example,we propose that the cycle life of vanadates can be greatly upgraded in AZIBs by regulating the concentration of ZnCl2 electrolyte,but with no need to approach“water-in-salt”threshold.With the optimized moderate concentration of 15 m ZnCl2 electrolyte,the KVO exhibits the best cycling stability with ~95.02% capacity retention after 1400 cycles.We further design a novel sodium carboxymethyl cellulose(CMC)-moderate concentration ZnCl2 gel electrolyte with high ionic conductivity of 10.08 mS cm^-1 for the first time and assemble a quasi-solid-state AZIB.This device is bendable with remarkable energy density(268.2 Wh kg^−1),excellent stability(97.35% after 2800 cycles),low self-discharge rate,and good environmental(temperature,pressure)suitability,and is capable of powering small electronics.The device also exhibits good electrochemical performance with high KVO mass loading(5 and 10 mg cm^-2).Our work sheds light on the feasibility of using moderately concentrated electrolyte to address the stability issue of aqueous soluble electrode materials. | Linpo Li Shuailei Liu Wencong Liu Deliang Ba Wenyi Liu Qiuyue Gui Yao Chen Zuoqi Hu Yuanyuan Li Jinping Liu | 2021 | Nano-Micro Letters2021，13，2： | 2 |
| 2 | Influences of graphite anode area on electrolysis of solid metal oxides in molten salts显示文摘 | Hualin Chen Xianbo Jin Linpo Yu George Z. Chen | 2014 | Journal of Solid State Electrochemistry2014，，12： | 1 |
| 3 | Electro-reduction of cuprous chloride powder to copper nanoparticles in an ionic liquid显示文摘 | Yu Linpo Sun Huijiao He Juan | 2007 | Electrochem Commun2007，9，6： | 1 |
| 4 | The Effects of WC on the Microstructures and Wear Resistance of FeCoCrNiB_(0.2) High Entropy Alloy显示文摘To improve the wear resistance of the FeCoCrNiB_(0.2)high entropy alloy(HEA),the FeCoCrNiB_(0.2)(WC_(0))and FeCoCrNiB_(0.2)+20wt%WC(WC_(20))HEA coatings were prepared on Q235 steel by laser cladding(LC).The microstructure,hardness,and tribometer of the HEA coatings were investigated using scanning electron microscopy with spectroscopy(SEM/EDS),X-ray diffraction(XRD),vickers microhardness tester,and pin-on-disc tribometer,respectively.The experimental results show that the WC0HEA coating comprises a simple BCC phase mixed with an M_(2)B phase.Adding 20wt%WC,the WC_(20)HEA coating is composed of a simple BCC phase mixed with the Cr_(23)C_(6)carbide phase.The microstructure of the WC_(20)HEA coating is simple,which consists of equiaxed grain and dendritic.The microhardness also increases from 625.5HV to 806.0HV,and the wear mass loss correspondingly decreases from 30.9 to 14.9 mg.W and C atoms formed by WC dissolution are mainly dissolved in the BCC phase,which leads to the solution strengthening effect.Besides,Cr_(23)C_(6)carbides inhibit the growth of the grains,play the role of fine-grain strengthening,and further improve the hardness and wear resistance of the HEA coating. | BAO Yefeng GUO Linpo ZHONG Chonghui XIE Bingqi WANG Zirui SONG Qining JIANG Yongfeng | 2023 | Journal of Wuhan University of Technology(Materials Science)2023，38，2： | 0 |
| 5 | Microstructure and Wear Resistance of Fe_(4)CoCrNiB_(0.2)Mo_(x)(x=0,0.5,1) High Entropy Alloys显示文摘To improve the wear resistance of Fe_(4)CoCrNiB_(0.2) high-entropy alloy(HEA),the Fe_(4)CoCrNiB_(0.2)Mo_(x)(where,x in Fe_(4)CoCrNiB_(0.2)Mo_(x) is a molar content,and the value is 0,0.5,1,respectively)HEAs were prepared on the Q235 substrate by laser cladding.The structure,hardness,and wear resistance of Fe_(4)CoCrNiB_(0.2)Mo_(x) HEAs were investigated using scanning electron microscopy with spectroscopy(SEM/EDS),X-ray diffraction(XRD),Vickers microhardness tester,and pin-on-disc tribometer.The influences of Mo content on the phase structures and mechanical properties of Fe_(4)CoCrNiB_(0.2)Mo_(x) HEAs are studied.The experimental results show that the Fe_(4)CoCrNiB_(0.2)Mo_(x) HEA cladding layers are composed of a simple BCC phase mixed with M_(2)B phase,BCC phase,and BCC+FCC dual-phase,respectively.The wear resistance and hardness of the Fe_(4)CoCrNiB_(0.2)Mo HEA sample are 2 and 1.35 times those of the Fe_(4)CoCrNiB_(0.2) HEA sample,respectively.The microhardness and wear resistance of the Fe_(4)CoCrNiB_(0.2)Mo_(x) HEAs increase with the increase of Mo content.It is found that the Fe_(4)CoCrNiB_(0.2)Mo_(x) HEA cladding layers are mainly strengthened by the solid solution strengthening and fine-grained strengthening. | 包晔峰 GUO Linpo ZHONG Chonghui SONG Qining YANG Ke JIANG Yongfeng WANG Zirui | 2022 | Journal of Wuhan University of Technology(Materials Science)2022，37，2： | 0 |
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