Prof. Wei-Ren LiuTaiwan
Chung Yuan Christian University
| 2024 to present | | President, Carbon Society of Taiwan |
| 2024 to present | | Director, The Electrochemistry Society of Taiwan |
| 2019 - now | | Professor, Department of Chemical Engineerinig, Chung Yuan Christian University |
| 2015 - 2019 | | Associate Professor, Department of Chemical Engineerinig, Chung Yuan Christian University |
| 2012 - 2015 | | Assistant Professor, Department of Chemical Engineerinig, Chung Yuan Christian University |
| 2006 - 2012 | | Researcher, Materials and Chemistry Laboratories, Industrial Technology Research Institute |
| 2026 | | NSTC Outstanding Resarch Awards |
| 2024 | | Scholar GPS Top 0.5% Scholar |
| 2023 | | World's Top 2% Scientists |
Li/Na ion Batteries; Li/Na Solid State Batteries; Graphene; Luminescence Materials
My research expertise encompasses three primary areas: energy storage materials, graphene, and luminescent materials. Over the past five years, I have published 111 SCI-indexed papers. My career portfolio includes more than 250 SCI publications, with 90% of them appearing in Q1 journals. According to Google Scholar, I have attained a career h-index of 56 and a total citation count of 10,389.
Oxygen vacancies engineering via Sc3+ doping to boost Li-ion transport and cycling stability in TiNb2O7 anodes
TBA TBA
High-Power/Fast-Charging Devices/TBA
With the rapid growth of portable electronics and electric vehicles, lithium-ion batteries (LIBs) have become a core technology for modern energy storage systems. However, the increasing demand for lithium resources, coupled with rising extraction costs, poses significant challenges to the sustainable development of LIBs. TiNb2O7 (TNO) has attracted attention due to its intercalation-type mechanism, moderate operating voltage and a theoretical capacity of ∼387 mAh g−1. This study investigates the effects of Sc3+ doping on enhancing the structural and electrochemical properties of TNO. A combination of analytical techniques, including DFT calculations and pseudocapacitive analysis, is employed to elucidate lithium-ion storage behavior. The sample with 3 mol.% Sc3+ doping achieved the highest reversible capacity of 363.9 mAh g−1 at 0.1C, with a capacity retention of 86.6% after 500 cycles at 5C. CV, GITT, and EIS tests all showed improved lithium-ion diffusion kinetics and charge transfer properties at this doping level. This study demonstrates that targeted compositional modifications can significantly optimize the structural features and electrochemical behavior of TiNb2O7, providing a promising pathway for developing high-rate, long-cycle lithium-ion battery anode materials.