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Choi, Wonchang(Professor)

INFO

  • AffiliationKIST School
  • Majors Division of Energy Environment Technology
    (Energy Engineering)
  • Contact Information02-958-5253
  • MajorMaterials Science & Eng.
  • DegreePh.D.
  • Highest Level of EducationUniversity of Texas, Austin
  • E-Mail

Field of Research

Materials for Energy Storage, Secondary Batteries, Capacitors, Lithium Ion Batteries, Sodium Ion Batteries, Thin Film Materials

Research Results

-  Yongho Lee, Jieun Lee, Kwan Young Lee, Junyoung Mun, Joong Kee Lee, and Wonchang Choi*, “Facile formation of a Li3PO4 coating layer during the synthesis of a lithium-rich layered oxide for high-capacity lithium-ion batteries”, Journal of Power Sources, 315, 284 (2016). -  Junyoung Mun, Hyung-Wook Ha, and Wonchang Choi*, “Nano LiFePO4 in Reduced Graphene Oxide Framework for Efficient High-rate Lithium Storage”, Journal of Power Sources, 251, 386 (2014). -  Wonchang Choi*, Anass Benayard, Jin-Hwan Park, Junho Park, Seok-Gwang Doo, and Junyoung Mun, “Versatile Coating of Lithium Conductive Li2TiF6 on Over-lithiated Layered Oxide in Lithium-Ion Batteries”, Electrochimica Acta, 117, 492 (2014).

Treatise

-  Electrochemical properties of Co-less layered transition metal oxide as high energy cathode material for Li-ion batteries[The Korean journal of chemical engineering,2014-05-01] -  Electrochemical behavior of a laser microstructured fluorine doped tin oxide anode layer with a plasma pretreatment for 3D battery systems[RSC advances,2014-03-01] -  Nano LiFePO4 in reduced graphene oxide framework for efficient high-rate lithium storage[Journal of power sources,2014-04-01] -  Surface coating of spinel LiMn2O4 cathode electrode with lithium-nickel-manganese-oxide by RF sputtering method for lithium-ion batteries[Journal of electroanalytical chemistry,2014-09-01] -  Versatile Coating of Lithium Conductive Li2TiF6on Over-lithiated Layered Oxide in Lithium-Ion Batteries[Electrochimica acta ,2014-01-01] -  Surface modification of cathodes with nanosized amorphous MnO2 coating for high-power application in lithium-ion batteries[Journal of electroanalytical chemistry,2014-08-01] -  Mechanochemical Synthesis of Li2MnO3 Shell/LiMO2 (M = Ni, Co, Mn) Core-Structured Nanocomposites for Lithium-Ion Batteries[Scientific Reports,2014-05-01] -  SnO2-coated LiCoO2 cathode material for high-voltage applications in lithium-ion batteries[Solid state ionics,2014-03-01] -  Al-C hybrid nanoclustered anodes for lithium ion batteries with high electrical capacity and cyclic stability[Chemical communications,2014-03-01] -  Effect of Lithium Difluoro (Oxalato) Borate on LiMn2O4-Activated Carbon Hybrid Capacitors[Electronic materials letters,2013-12-01] -  Surface modification of LiNi0.5Mn1.5O4 cathodes with ZnAl2O4 by a sol-gel method for lithium ion batteries[Electrochimica acta ,2014-01-01] -  Effect of micro-patterned fluorine-doped tin oxide films on electrochromic properties of Prussian blue films[Applied surface science,2014-09-01] -  Effect of polyimide binder on electrochemical characteristics of surface-modified silicon anode for lithium ion batteries[Journal of power sources,2013-12-01] -  Bundle-type silicon nanorod anodes produced by electroless etching using silver ions and their electrochemical characteristics in lithium ion cells[International journal of hydrogen energy,2014-12-01] -  Coating of spinel LiNi0.5Mn1.5O4 cathodes with SnO2 by an electron cyclotron resonance metal?organic chemical vapor deposition method for high-voltage applications in lithium ion batteries[Journal of electroanalytical chemistry,2015-01-01] -  Control of electrochemical properties of nickel-rich layered cathode materials for lithium ion batteries by variation of the manganese to cobalt ratio[Journal of power sources,2015-02-01] -  New dry carbon nanotube coating of over-lithiated layered oxide cathode for lithium ion batteries[Journal of materials chemistry. A, Materials for energy and sustainability,2014-12-01] -  Plasma-polymerized C60 as a functionalized coating layer on fluorine-doped tin oxides for anode materials of lithium-ion batteries[Carbon,2015-01-01] -  Surface Modification of Over-Lithiated Layered Oxides with PEDOT:PSS Conducting Polymer in Lithium-Ion Batteries[Journal of the Electrochemical Society,2015-02-01] -  Cycling performance of lithium-ion polymer cells assembled with a cross-linked composite polymer electrolyte using a fibrous polyacrylonitrile membrane and vinyl-functionalized SiO2 nanoparticles[Journal of materials chemistry. A, Materials for energy and sustainability,2015-06-01] -  Lithium difluoro(oxalate)borate for robust passivation of LiNi0.5Mn1.5O4 in lithium-ion batteries[Journal of electroanalytical chemistry,2015-05-01] -  Coating Lithium Titanate with Nitrogen-Doped Carbon by Simple Refluxing for High-Power Lithium-Ion Batteries[ACS Applied Materials & Interfaces,2015-05-01] -  Three-dimensional silicon/carbon coreeshell electrode as an anode material for lithium-ion batteries[Journal of power sources,2015-04-01] -  Surface Modification of Sulfur Cathodes with PEDOT:PSS Conducting Polymer in Lithium-Sulfur Batteries[Journal of the Electrochemical Society,2015-03-01] -  Facile formation of a Li3PO4 coating layer during the synthesis of a lithium-rich layered oxide for high-capacity lithium-ion batteries[Journal of power sources,2016-05-01] -  Preparation of a TiNb2O7 Microsphere Using Formic Acid and Wrapping with Reduced Graphene Oxide for Anodes in Lithium Ion Batteries[Journal of the Electrochemical Society,2016-03-01] -  Coating of Sulfur Particles with Manganese Oxide Nanowires as a Cathode Material in Lithium-Sulfur Batteries[Materials letters,2015-11-01] -  Electrochemical Investigations on TiO2-B Nanowires as a Promising High Capacity Anode for Sodium-ion Batteries[Electrochimica acta ,2016-05-01] -  One-Step Catalytic Synthesis of CuO/Cu2O in a Graphitized Porous C Matrix Derived from the Cu-Based Metal?Organic Framework for Li- and Na-Ion Batteries[ACS Applied Materials & Interfaces,2016-08-01] -  Nitrogen-doped Carbon Coated Porous Silicon as High Performance Anode Material for Lithium-Ion Batteries[Electrochimica acta ,2016-08-01] -  Pitch-coated Hard Carbon/Sn Composite Synthesized by High Energy Ball Milling as an Anode Material for Magnesium Ion Batteries[2016 Advances in Functional Materials,2016-08-01] -  Surface-modified carbon nanotube coating on high-voltage LiNi0.5Mn1.5O4 cathodes for lithium ion batteries[Journal of power sources,2016-08-01] -  Li2ZrO3-coated Li1.2Ni0.2Mn0.8O2 for the High Performance Cathode Materical in Lithium Ion Batteries[2016 Advances in Functional Materials,2016-08-01]

Patent

-  집전체 표면위에 형성된 고분자패턴을 이용하여 고성능 실리콘 전극제조 및 이를 포함하는 리튬계 이차전지음전극의 제조방법[2013-11-04] -  C60유래 카본박막이 코팅된 투명 도전성 금속 산화막 전극을 포함하는 전기변색 창호 및 이의 제조방법[2014-12-02] -  금속산화물 박막이 코팅된 에너지저장 장치용 전극[2015-02-03] -  전도성 투명 발열막, 이의 제조방법 및 이를 포함하는 발열 창호[2014-11-13] -  코어-쉘 구조의 양극 활물질 및 이의 제조방법[2015-02-25] -  열전도성 금속패턴을 포함한 발열 창호의 제조방법[2015-10-02] -  비정질 리튬전이금속 산화물 코팅층을 포함하는 리튬이차전지용 양극 및 그 제조방법[2015-09-22] -  나트륨이온이차전지용 나트륨 바나듐 산화물 음극소재, 이의 제조 방법 및 이를 포함하는 나트륨이온이차전지[2015-06-05] -  리튬-황 전지용 전이금속산화물-유황 복합소재 양극 활물질[2015-12-18] -  고체전해질이 코팅된 이차전지용 양극 활물질의 제조[2016-02-29] -  전이금속산화물이 코팅된 이차전지용 양극 활물질의 제조 [2016-01-19] -  마이크로 패터닝된 투명 도전성 금속 산화막을 포함하는 전기변색 창호 및 이의 제조방법[2015-12-28] -  리튬 망간 보레이트계 양극 활물질, 이를 포함하는 리튬 이온 이차전지 및 이의 제조방법[2016-07-04] -  전도성 탄소층을 기반으로 한 이차전지용 실 리콘박막전극[2016-08-30]