The major concern about existing rechargeable Li-ion battery technology is that it takes too long for recharging and is unsafe especially at fast rate of charging. Current project provides solutions for developing safe Li-ion battery technology for high power applications. We have opening for Two Research Fellow/Post-doctoral Fellow positions to work in this project. This project is a joint collaboration between National University of Singapore, Singapore and Underwriters Laboratories Inc., USA for two years. These positions will start from June-July 2022.
Project aim to develop high power Li-ion cell technologies using phosphate based positive electrode materials along with titanate based negative electrode materials. NUS hold process patents for three electrode materials related to this project.
Project team plans to optimize synthesis conditions for scale-up production of positive and negative electrode materials. Commercial type Li-ion cells will be fabricated using existing proto-type facility at NUS. Besides testing their storage performances, we intend to examine heat generation using accelerated rate calorimeter as well as internal resistance using impedance spectroscopy at selected abuse conditions of the proposed high-power Li-ion cells for investigation of degradation mechanisms in these cell chemistries.
In this context, one of the selected candidates will focus on modifications to the electrode materials while the other candidate will consider reevaluating additives to the electrolytes for improving the storage performances and safety criteria of the proposed high-power Li-ion cells. They will use X-ray diffraction, impedance spectroscopy, FTIR, X-ray photoelectron spectroscopy, SEM/TEM, DSC/DTA, etc., for related characterizations to understand improvements in kinetics, thermal and structural stabilities of these electrode and electrolyte materials.
Qualifications
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