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 Postdoc - Battery Nanomaterials & Electrochemistry
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UNITED STATES
1 Posts

Posted - 10/01/2011 :  14:29:20
Xiao-Liang (Leon) Wang

Center for Functional Nanomaterials
Brookhaven National Laboratory
Upton, NY 11973, US
Work: (631) 344-4734
E-mail#65306;xlwang@bnl.gov


WORK EXPERIENCE
Feb. 2009-present Brookhaven National Lab, Center for Functional Nanomaterials New York
• Research Associate
• Project: Nano Electrode Materials for Li-ion Batteries

Sep.2004-Jan. 2009 Lab of Students Practice, Dept. Mater. Sci. Eng., Tsinghua Univ. Beijing, China
• Teaching Assistant in two undergraduate lab courses - “Experiment Parameters and Control” and ”Materials Physical Properties (Experimental)”

Feb.2005-Aug.2005 P & G, Oral Care Department (Intern) Beijing, China

EDUCATION
2009 Tsinghua University Beijing, China
• Doctor of Engineering (Materials Science and Engineering)
• Thesis: Preparation and Characterization of Polymer-Based Electrolyte Materials for Li-ion Batteries
• Participated in the Tsinghua-Toyota cooperation program “Inorganic Solid Electrolytes for High Capacity and Capacity Retention Li-ion Batteries”

2004 Tsinghua University Beijing, China
• Bachelor of Engineering (Materials Science and Engineering)

RESEARCH ACCOMPLISHMENT
• Synthesized nanospheres of a new intermetallic FeSn5 phase. Its theoretical capacity of 929 mAh/g (Fe0.74Sn5 with iron vacancies) then was the highest among the reported M(electrochemically inactive)-Sn systems and only was lower than that of Mg2Sn among the reported M(electrochemically active)-Sn systems.
• Demonstrated the first use of porous single-crystalline silicon nanowires as an anode material.
• Demonstrated the first use of Magnιli-phase Ti(n)O(2n#8722;1) as an anode material in both Li-ion batteries and hybrid electrochemical capacitors.
• Prepared a composite polymer electrolyte membrane with a PEO-PPO-PEO copolymer and a mesoporous silica-based ionically-active filler. The membrane achieved ionic conductivities of 8Χ10-5 S/cm at 30 °C and 4.3Χ10-4 S/cm at 61 °C. A Li metal/LiFePO4 cell showed an initial capacity of 144 mAh/g and retention of 90% after 40 cycles at 60 °C.
• Prepared an inorganic gel electrolyte consisting of only a liquid electrolyte and a hierarchical mesoporous silica network. The weight ratio of the liquid could reach 90%. The ionic conductivity at 25 °C was 7.67 mS/cm.


QUALIFICATIONS
Professional Knowledge
• Broad knowledge of Li-ion battery materials, technologies and development
• Expertise in operating electrochemical and structural characterization equipment
• Well educated in materials, chemistry, physics and other related subjects

Materials Synthesis
• Specialization in inorganic synthesis (wet chemistry, CVD, hydrothermal methods, etching, ALD and solid state reaction), polymer composite electrolyte membrane preparation and surface functionalization

Characterization Skills
• Specialization in electrode preparation and coin cell assembly
• Expertise in electrochemical and battery characterization and analysis (battery cycling testing, full cell performance testing, cyclic voltammetry, electrochemical impedance spectroscopy, ionic conductivity measurement, Li+ transference number measurement, electrolyte electrochemical stability measurement and interfacial resistance measurement)
• Expertise in general material characterization techniques (TEM, SEM, XRD, Synchrotron light source, DSC, TGA and FT-IR)
• Expertise in hybrid electrochemical capacitor measurement
• Experience with NMR, XPS, GC-MS, LC-MS
• Experience with magnetic and superconducting property analysis

HONORS
2004 Distinguished Graduate of Beijing, Excellent Graduate of Tsinghua University
2001, 2002, 2007 First Prize Scholarship, Tsinghua University
2003 Second Prize Scholarship, Tsinghua University
2005, 2006 Third Prize Scholarship, Tsinghua University

PUBLICATIONS
2011:
• X. -L. Wang et al., Nanospheres of a New Intermetallic FeSn5 Phase: Synthesis, magnetic properties and anode performance in Li-ion batteries, Journal of the American Chemical Society, 133 (2011) 11213-11219. (2010 Impact Factor: 9.019)
• J. Hong, F. Wang, X. -L. Wang et al., LiFexMn1#8722;xPO4: A cathode for lithium-ion batteries, Journal of Power Sources, 196 (2011) 3659-3663. (2010 Impact Factor: 4.283)
2010:
• X. -L. Wang et al., Single-crystal intermetallic M-Sn (M = Fe, Cu, Co, Ni) nanospheres as negative electrodes for lithium-ion batteries, ACS Applied Materials & Interfaces, 2 (2010) 1548-1551. (2010 Impact Factor: 2.925)
• X. -L. Wang et al., Sn/SnOx core-shell nanospheres: synthesis, anode performance in Li-ion batteries, and superconductivity, the Journal of Physical Chemistry C, 114 (2010) 14697-14703. (2010 Impact Factor: 4.520)
• X. -L. Wang et al., Graphene enhances Li storage capacity of porous single-crystalline silicon nanowires, ACS Applied Materials & Interfaces, 2 (2010) 3709-3713. (2010 Impact Factor: 2.925)
• W. –Q. Han and X. -L. Wang, Carbon-coated Magnιli-phase TinO2n#8722;1 nanobelts as anodes for Li-ion batteries and hybrid electrochemical cells, Applied Physics Letters, 97 (2010) 243104. (2010 Impact Factor: 3.820)
• A. Mei, X. -L. Wang et al., Role of amorphous boundary layer in enhancing ionic conductivity of lithium-lanthanum-titanate electrolyte, Electrochimica Acta, 55 (2010) 2958-2963. (2010 Impact Factor: 3.642)
2009:
• Y. Geng, X. -L. Wang et al., Synthesis, characterization and application of novel bicontinuous mesoporous silica with hierarchical pore structure, Materials Chemistry and Physics, 116 (2009) 254-260. (2010 Impact Factor: 2.353)
• L. -Z. Fan, X. -L. Wang et al., All-solid-state polymer electrolyte with plastic crystal materials for rechargeable Li-ion battery, Journal of Power Sources, 189 (2009) 775-778. (2010 Impact Factor: 4.283)
2008:
• X. -L. Wang et al., Ionic transport behavior in poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) and LiClO4 complex, Electrochimica Acta, 53 (2008) 2448-2452. (2010 Impact Factor: 3.642)
• X. -L. Wang et al., Temperature dependent ionic transport properties in composite solid polymer electrolytes, Solid State Ionics, 179 (2008) 1310-1313. (2010 Impact Factor: 2.491)
• X. -L. Wang et al., Gel-based composite polymer electrolytes with novel hierarchical mesoporous silica network for lithium batteries, Electrochimica Acta, 53 (2008) 8001-8007. (2010 Impact Factor: 3.642)
• L. -Z. Fan, X. -L. Wang et al., Enhanced ionic conductivities in composite polymer electrolytes by using succinonitrile as a plasticizer, Solid State Ionics, 179 (2008) 1772-1775. (2010 Impact Factor: 2.491)
• A. Mei, X. -L. Wang et al., Enhanced ionic transport in Lithium Lanthanum Titanium Oxide solid state electrolyte by introducing silica, Solid State Ionics, 179 (2008) 2255-2259. (2010 Impact Factor: 2.491)
2007:
• X. -L. Wang et al., Novel polymer electrolytes based on triblock poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) with ionically active SiO2, Journal of Power Sources, 171 (2007) 913-916. (2010 Impact Factor: 4.283)
• X. -L. Wang et al., Polymer composite electrolytes containing ionically active mesoporous SiO2 particles, Journal of Applied Physics, 102 (2007) 054907. (Also selected by Virtual Journal of Nanoscale Science & Technology, October 1st, 2007) (2010 Impact Factor: 2.064)
2006:
• X. -L. Wang et al., Effect of silane-functionalized mesoporous silica SBA-15 on performance of PEO-based composite polymer electrolytes, Solid State Ionics, 177 (2006) 1287-1291. (2010 Impact Factor: 2.491)

PATENTS
• X. –L. Wang et al., A new intermetallic FeSn5 phase and the synthesis method, (pending, US)
• C. -W. Nan, X. -L. Wang et al., A copolymer-based electrolyte for lithium batteries, composite electrolyte membranes and its preparation method, (CN101222055A, Chinese)
• C. -W. Nan, A. Mei, X. -L. Wang, Manufacturing method of lithium lanthanum titanium oxide, (CN1970455A, Chinese)
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