Ke Chai

ORCID: 0000-0002-5869-9083
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About
Contact & Profiles
Research Areas
  • Advanced Battery Materials and Technologies
  • Supercapacitor Materials and Fabrication
  • Advancements in Battery Materials
  • Crystal Structures and Properties
  • Gas Sensing Nanomaterials and Sensors
  • Analytical Chemistry and Sensors
  • Fluorine in Organic Chemistry
  • Porphyrin and Phthalocyanine Chemistry
  • X-ray Diffraction in Crystallography
  • Lanthanide and Transition Metal Complexes
  • ZnO doping and properties
  • Solid-state spectroscopy and crystallography

Institute of Physics
2024

University of Chinese Academy of Sciences
2017-2022

High-capacity Li-rich Mn-based oxide cathodes show a great potential in next generation Li-ion batteries but suffer from some critical issues, such as, lattice oxygen escape, irreversible transition metal (TM) cation migration, and voltage decay. Herein, comprehensive structural modulation the bulk surface of is proposed through simultaneously introducing vacancies P doping to mitigate these improvement mechanism revealed. First, elongates OO distance, which lowers energy barrier enhances...

10.1002/smll.202201014 article EN Small 2022-04-04

LiCoO2 (LCO) is ideal for 3C electronics due to its high tap density. However, the excessive O → Co charge transfer at delithiation leads irreversible reduction, release, and structural degradation, deteriorating high-voltage performance of LCO. Herein, we propose regulate intrinsic Fermi level via uneven trace Zr/Mg doping. First, increase electron density in mitigates both oxidation/coupled reduction through alleviating transfer, restraining formations Co2+ O2. This elevates redox activity...

10.1021/acsenergylett.2c01841 article EN ACS Energy Letters 2022-10-28

We describe the synthesis of β-fluorinated porpholactones by oxidation fluorinated CC bond pyrrolic subunit in porphyrin using “RuCl<sub>3</sub> + Oxone®” protocol.

10.1039/c7qi00375g article EN Inorganic Chemistry Frontiers 2017-01-01
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