Ts. Dr. Braedan Foo Chuan Yi & Team Publish on Green Battery Waste Valorization
2025-10-01The Research and Postgraduate Centre congratulates Subiarto Bagas Galih and Asst. Prof. Ts. Dr. Braedan Foo Chuan Yi from the School of Energy and Chemical Engineering, for their recent research article published in Journal of Environmental Chemical Engineering, an SCIE Q1 journal with the latest impact factor of 7.2.
Subiarto Bagas Galih is pursuing his Master's degree in New Energy Science and Engineering at Xiamen University Malaysia.
In the paper entitled "Facile valorization of hazardous lithium-ion battery waste: Betaine hydrochloride-based deep eutectic solvent as a green platform for heavy metal extraction", a novel deep eutectic solvent (DES) composed of betaine hydrochloride (BeCl) and glycerol was proposed for hydrometallurgical extraction of heavy metals from spent lithium nickel cobalt manganese oxide (NCM) batteries without pre-processing. The BeCl-DES exhibits high leaching efficiencies of 85.43 % (Li), 93.68 % (Ni), 94.16 % (Co), and 98.00 % (Mn) under mild condition of 80 °C for 6 h. This demonstrates the BeCl-DES capability for efficient, low-energy hydrometallurgical leaching.
Metal rich leachate containing Ni, Co, Mn from green DES
The project received support from NanoMalaysia Energy Storage Technology Initiative (NESTI) under the 12th Malaysia Plan (Ref No. SPO/2023/S.23007/C0451–04/NIMY), International Science Partnership Fund, ISPF from British Council (Grant No: 2115), Xiamen University Research Fund, XMUMRF (XMUMRF/2023-C11/IENG/0056, and XMUMRF/2024-C14/IENG/0072).
The published full article can be accessed at https://doi.org/10.1016/j.jece.2025.119377
| Subiarto Bagas Galih is a master's student in New Energy Science and Engineering at Xiamen University Malaysia. As a research graduate assistant, he explored the advancement of sustainable technologies in energy and materials recovery. Throughout his study, he obtained experience in green chemistry and analytical techniques, with the current focus on deep eutectic solvents-based hydrometallurgical approaches for recycling spent lithium-ion batteries. |
| Dr. Braedan Foo Chuan Yi is an Assistant Professor in New Energy Science and Engineering at Xiamen University Malaysia. He is particularly interested in unravelling the potential and workability of advanced manufacturing technology in nanomaterials fabrication, as well as improving the performance of current electrochemical energy storage devices. |
