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| 1 | Heat treatment effect on electrochemical properties of spinel Li_4Ti_5O_(12)显示文摘阳极材料 Li4Ti5O12 在 800 牰灯牥祴洠湡条浥 h | LI Yue ZHAO Hailei TIAN Zhihong QIU Weihua LI Xue | 2008 | Rare Metals2008，27，2： | 11 |
| 2 | Electrochemical properties of spinel LiMn_2O_4 and LiAl_(0.1)Mn_(1.9)O_(3.9)F_(0.1) synthesized by solid-state reaction显示文摘Two types of spinel cathode powders, LiMn2O4 and LiAl0.1Mn1.9O3.9F0.1, were synthesized by solid-state reaction. X-ray diffraction (XRD) patterns of the prepared samples were identified as the spinel structure with a space group of Fd 3 m. The cubic lattice parameter was determined from least-squares fitting of the XRD data. The LiAl0.1Mn1.9O3.9F0.1 sample showed a little lower initial capacity, but better cycling performance than the LiMn2O4 sample at both room temperature and an elevated temperature. The Vanderbilt method was used to test the electrochemical conductivity of the LiMn2O4 samples. The electrochemical impedance spec-troscopy (EIS) method was employed to investigate the electrochemical properties of these spinel LiMn2O4 samples. | Tao Li Weihua Qiu Hailei Zhao Jingjing Liu | 2008 | Journal of University of Science and Technology Beijing2008，15，2： | 6 |
| 3 | A review on the critical challenges and progress of SiO_(x)-based anodes for lithium-ion batteries显示文摘With the advantages of abundant resources,high specific capacity,and relatively stable cycling performance,silicon suboxides(SiO_(x) ,x<2)have been recently suggested as promising anodes for next-generation lithium-ion batteries(LIBs).SiO_(x) exhibits superior storage capability because of the presence of silicon and smaller volume change upon charge/discharge than Si owing to the buffering effect of the initial lithiation products of inert lithium oxide and lithium silicates,enabling a stable cycle life of electrodes.However,significant improvements such as overcoming issues related to volume changes in cycling and initial irreversible capacity loss and enhancing the ionic and electronic charge transport in poorly conducting SiO_(x) electrodes,are still needed to achieve the satisfactory performance required for commercial applications.This review summarizes recent progress on the cycling performance and initial coulombic efficiency of SiO_(x) .Advances in the design of particle morphology and composite composition,prelithiation and prereduction methods,and usage of electrolyte additives and optimized electrode binders are discussed.Perspectives on the promising research directions that might lead to further improvement of the electrochemical properties of SiO_(x) -based anodes are noted.This paper can serve as a basis for the research and development of high-energy-density LIBs. | Nana Yao Yu Zhang Xianhui Rao Zhao Yang Kun Zheng KonradŚwierczek Hailei Zhao | 2022 | International Journal of Minerals,Metallurgy and Materials2022，29，4： | 4 |
| 4 | Si/MgO composite anodes for Li-ion batteries显示文摘A Si/MgO composite anode material was prepared by a simple magnesium reduction process using silicon oxide and magnesium as starting reactants.The feasibility of this process is discussed from the thermodynamic viewpoint.The resultant composite material is mainly composed of Si and MgO components.MgO,acting as a buffer layer,can accommodate the large volume change of active Si during the charge/discharge process,thus the cycling stability is improved.Electrochemical tests demonstrate that the first charge and discharge capacities of the synthesized Si/MgO composite anode are ca.1380 and 1046 mAh g-1,respectively,with an initial coulomb efficiency of ca.76%.The magnesium reduction process provides a novel idea for the synthesis of Si-based anode materials. | CHEN Jingbo ZHAO Hailei HE Jianchao WANG Jing | 2011 | Rare Metals2011，30，2： | 3 |
| 5 | Rational structure design to realize high-performance SiOx@C anode material for lithium ion batteries显示文摘Silicon suboxide(SiOx)is considered to be one of the most promising materials for next-generation anode due to its high energy density.For its preparation,the wet-chemistry method is a cost-effective and readily scalable route,while the so-derived SiOx usually shows lower capacity compared with that prepared by high temperature-vacuum evaporation route.Herein,we present an elaborate particle structure design to realize the wet-chemistry preparation of a high-performance SiOx/C nanocomposite.Dandelion-like highly porous SiOx particle coated with conformal carbon layer is designed and prepared.The highly-porous SiOx skeleton provides plenty specific surface for intimate contact with carbon layer to allow a deep reduction of SiOx to a low O/Si ratio at relatively low temperature(700℃),enabling a high specific capacity.The abundant mesoscale voids effectively accommodate the volume variation of SiOx skeleton,ensuring the high structural stability of SiOx@C during lithiation/delithiation process.Meanwhile,the three-dimensional(3D)conformal carbon layer provides a fast electron/ion transportation,allowing an enhanced electrodereaction kinetics.Owing to the optimized O/Si ratio and well-engineered structure,the prepared SiOx@C electrode delivers an ultra-high capacity(1,115.8 mAh·g^-1 at 0.1 A·g^-1 after 200 cycles)and ultra-long lifespan(635 mAh·g^-1 at 2 A·g^-l after 1,000 cycles).To the best of our knowledge,the achieved combination of ultra-high specific capacity and ultra-long cycling life is unprecedented. | Zhaolin Li Hailei Zhao Jie Wang Tianhou Zhang Boyang Fu Zijia Zhang Xin Tao | 2020 | Nano Research2020，13，2： | 3 |
| 6 | Electrochemical characteristics of CoSn_x alloy composite anode for lithium-ion rechargeable batteries显示文摘Nano/micro-scaled CoSnx alloy powders synthesized via carbothermal reduction at 800 ℃ with different compositions were characterized for anode materials in Li-ion battery. The synthesized spherical CoSnx particles show a loose nano/micro sized particle structural characteristic, which is apparently favorable for the improvement of cycling stability. The prepared CoSn3 alloy composite electrode exhibits a low initial irreversible capacity of ca.130 mAh·g-1 and a high specific capacity of ca.440 mAh·g-1 at constant current density of 100 mA·g-1. The relatively large particle size is considered to be the main reason for the lower irreversible capacity of CoSn3 electrode. | GUO Hong ZHAO Hailei JIA Xidi QIU Weihua | 2006 | Rare Metals2006，25，z1： | 2 |
| 7 | High-performance oxygen permeation membranes:Cobalt-free Ba_(0.975)La_(0.025)Fe_(1-x)Cu_(x)O_(3)-δceramics显示文摘A new group of cobalt-free perovskite oxides,Ba_(0.975)La_(0.025)Fe_(1-x)Cu_(x)O_(3-δ)(BLFC,x=0.05-0.15),was designed,characterized and applied as oxygen permeation membranes.It was found that BLFC oxides with Cu doping range of 0.075-0.15 maintain cubic perovskite phase in a wide range of temperatures.More Cu introduced at the B-site results in a gradual increase of the electrical conductivity,which is attributed to the denser overlapping of electron clouds of CueO bonds.With increasing Cu content,the oxygen vacancy concentration increases and the oxygen ion migration energy decreases,leading to the highest oxygen permeation flux of 1.59 mL cm^(-2)min^(-1)recorded for Ba_(0.975)La_(0.025)Fe_(0.9)Cu_(0.1)O_(3-δ)1mm thick membrane at 950℃.However,the oxygen permeability decreases with further Cu doping,which may be correspond to a presence of defect association.Ba_(0.975)La_(0.025)Fe_(0.9)Cu_(0.10)O_(3-δ)membrane with 0.7mm thickness delivers stable oxygen permeation flux of 1.57 mL cm^(-2)min^(-1)for 200 h at 900℃.All of the obtained results indicate that the developed BLFC with optimized Cu content(i.e.x=0.1)is a very promising material for usage in oxygen separation applications. | Zilu Liu Kui Li Hailei Zhao Konrad Swierczek | 2019 | Journal of Materiomics2019，5，2： | 2 |
| 8 | 显示文摘 | Jingjing Liu Weihua Qiu Lingyan Yu Hailei Zhao and Tao Li Materials Science and Engineering School University of Science and Technology Beijing Beijing 100083 China | 2007 | Journal of University of Science and Technology Beijing2007，，02： | 1 |
| 9 | Comparative experiment on layered Li(Ni_(1/3)Co_(1/3)Mn_(1/3))O_2 as the alternative material for LiCoO_2显示文摘The characteristics and electrochemical properties of the layered Li(Ni_(1/3)Co_(1/3)Mn_(1/3))O_2 have been investigated by using the X-ray diffraction (XRD), scanning electron microscopy (SEM), and cyclic voltammograms (CV). The Li(Ni_(1/3)Co_(1/3)Mn_(1/3))O_2 powders were synthesized by coprecipitation method. The as-synthesized Li(Ni_(1/3)Co_(1/3)Mn_(1/3))O_2 has well-shaped crystals with a uniform particle size distribution at ~500 nm. A reversible discharge capacity of 165 mAh/g at a current of 40 mA/g between 2.7-4.35 V, with stable cycling performance has been obtained. Moreover, the discharge capacity rises up to 190 mAh/g, when the cutoff voltage increases to 4.6 V. The excellent cycling performance at a higher cutoff operating voltage (up to 4.8 V) could be attributed to the well-retention of the microstructure of synthesized Li(Ni_(1/3)Co_(1/3)Mn_(1/3))O_2 powders. Comparatively, LiCoO_2 suffered structure degradation at a higher cutoff voltage. However, the high rate properties of Li(Ni_(1/3)Co_(1/3)Mn_(1/3))O_2 is not as good as LiCoO2, so its electrical conductivity must be improved. | Jingjing Liu Weihua Qiu Lingyan Yu Hailei Zhao Tao Li | 2007 | Journal of University of Science and Technology Beijing2007，14，2： | 1 |
| 10 | Effect of the synthesis method of SnSb anode materials on their electrochemical properties显示文摘SnSb alloy powders for the anode of Li-ion batteries were synthesized by two kinds of reduction precipitation methods: solution titration and rapid mixing. Two kinds of SnSb alloy powders showed different phase compositions and particle morpholo-gies although the same starting materials were used. The SnSb alloy electrode synthesized by titration exhibits high reversible spe-cific capacity and good cycling stability, whereas the rapid-mixing sample shows high irreversible capacity and fast capacity fade. The broad particle size distribution of SnSb powders synthesized by titration is considered to be responsible for the improvement of cycling stability. The initial charge-discharge efficiency exceeding 80/ has been obtained for the titration sample. The electro-chemical reaction process of two kinds of synthesized SnSb composite electrodes was characterized by cyclic voltammetry and AC impedance techniques. | Chaoli Yin Hailei Zhao Hong Guo Xianliang Huang Weihua Qiu | 2007 | Journal of University of Science and Technology Beijing2007，14，4： | 1 |
| 11 | 显示文摘 | Hong Guo Hailei Zhao Chaoli Yin | 2006 | Materials Scienceand Engineering:B2006，131，13： | 1 |
| 12 | 查看详情显示文摘 | Hailei Zhao | | 0，，： | 1 |
| 13 | Spherical Sn-Ni-C alloy anode material with submicro/micro complex particle structure for lithium secondary batteries显示文摘 | Hong Guo Hailei Zhao Xidi Jia | 2007 | Electrochemistry Communications2007，9，9： | 1 |
| 14 | Carbothermal synthesis of SnxSb anode material for secondary lithium -ion battery显示文摘 | Hailei Zhao Ng D H L | 2005 | Journal of Alloys and Compounds2005，395，： | 1 |
| 15 | Analysis of N′-nitrosonornicotine and its metabolites in rabbit blood with liquid chromatography/tandem mass spectrometric method显示文摘 | Beibei Zhao Sheng Wang Juan Wang Hailei Lang Shihao Sun Jian Mao Jianxun Zhang | 2012 | Journal of Chromatography B2012，，： | 1 |
| 16 | High-temperature properties of refractory composites显示文摘 | Zhong Xiangchong Zhao Hailei | | 0，，07： | 1 |
| 17 | Microstructural characteristics of refractory composites显示文摘 | Zhong Xiangchong Zhao Hailei | | 0，，02： | 1 |
| 18 | Nanostructured Fe 3 O 4 @C as anode material for lithium-ion batteries显示文摘 | Zhipeng Zeng Hailei Zhao Jie Wang Pengpeng Lv Tianhou Zhang Qing Xia | 2014 | Journal of Power Sources2014，，： | 1 |
| 19 | Modified aging process for silica aerogel显示文摘 | He Fang Zhao Hailei Qu Xuanhui | | 0，，03： | 1 |
| 20 | 显示文摘 | Zhao Hailei Gao Ling Qiu Weihua | 2004 | Journal of Power Sources2004，132，： | 1 |
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