Shu-Huei Hsieh
Bio
Prof. Shu-huei Hsieh is the Vice President for Research and Development at National Formosa University (NFU) in Taiwan and specializes in the Department of Materials Science and Engineering. The Nano Material Laboratory (NML), established by Associate Professor Shu-Huei Hsieh within the Department of Materials Science and Engineering at NFU, possesses the capability to create various formats of metal nanoparticles on carbon materials. Utilizing wet chemistry methods, NML aims to develop cost-effective fabrication processes for mass-producing functional carbon materials for energy storage applications.
Our laboratory specializes in synthesizing nanoparticles, nanorods, nanowires, and graphene oxide (GO) using wet chemical methods such as electro-electroless plating, sol-gel, and hydrothermal processes. Additionally, we modify carbon materials to enhance their compatibility with metals, with a particular focus on establishing a highly stable electrochemical interface between lead (Pb) and carbon. Activated carbon fibre cloth (CF) is a monolithic, conductive, and hydrophilic material. A Pb/CF cloth/Pb composite (LCF) as a highly efficient lead-carbon electrode exhibits high charge acceptance and long cycle life for lead batteries (LAB) during HRPSoC cycling. Therefore, the Pb-C (Lead-Carbon) composite serves a dual purpose in a LAB, contributing to both high-rate efficiency and acting as an electrode to assemble a cell. In evaluation of the two functions; when employing LCF plates in a LAB the discharge time during a 500 W cycling test of a 12 V, 6 Ah battery over 200 cycles is consistently 120 minute, and the remaining capacity of the battery remains almost unchanged. Additionally, the 1C discharge cycle life of a 12 V 60 Ah battery exceeds 200 cycles. LCF plates act as electrodes to assemble a cell; the high-rate cycling (with 4C charge and 10C discharge) at 100% DOD of the pure 2 V LCF AGM battery exhibits smooth performance beyond 4000 cycles, maintaining an energy efficiency of 40%. In summary, the Pb-C composite in a lead-acid battery serves a dual role by improving high-rate efficiency through enhanced conductivity and surface area while also being utilized as an electrode material, leading to an overall enhancement of battery performance and cycle life.
