Nkosi, FPalaniyandy, NithyadharseniRaju, KumarBilling, COzoemena, KI2020-04-132020-04-132019-09Nkosi, F. et al. 2019. Physico-chemistry of energy-dense Li1.2Mn0.52Co0.13Ni0.13Al0.02O2 cathode material for lithium-ion batteries obtained from urea and ethylene glycol fuels. Materials Research Express, vol. 6, no. 11, pp. 1-102053-1591https://iopscience.iop.org/article/10.1088/2053-1591/ab4302https://iopscience.iop.org/article/10.1088/2053-1591/ab4302/pdfhttps://doi.org/10.1088/2053-1591/ab4302http://hdl.handle.net/10204/11422Copyright: 2019 IOP Publishing LTD. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, please consult the publisher's website. The definitive version of the work is published in Materials Research Express, vol. 6, no. 11, pp. 1-10A lithium manganese rich-transition metal oxide, Li1.2Mn0.52Co0.13Ni0.13Al0.02O2 (LMNCA) cathode was successfully prepared by the combustion method with urea (i.e., LMNCA-urea) and ethylene glycol (EG) (i.e., LMNCA-EG) used as fuels. The effects of the combustion fuels on the physical (XRD, XPS, Raman, FE-SEM and BET) and electrochemical properties of the samples were thoroughly evaluated. Both LMNCA samples exhibit a highly ordered crystalline 'layered-layered' structure. LMNCA-urea delivered a highest specific capacity of 295 mAh g-1 with the capacity retention of 84% after 50 cycles, while the LMNCA-EG gave a specific capacity of 240 mAh g-1 (capacity retention of 78%) after 50 cycles. However, the EG-based combustion synthesis suppresses voltage decay by its ability to prevent the undesirable transformation of the layered-layered phase to the layered-to-spinel phase upon continuous cycling and improves the charge-transfer kinetics of the LMNCA. The results provide a promise that EG-based combustion can be tuned to provide high-performance LMNCA for future application.enCombustion fuelsEthylene glycolHigh-energy LMNCALithium-ion batterySuppression of voltage decayConference PresentationNkosi, F., Palaniyandy, N., Raju, K., Billing, C., & Ozoemena, K. (2019). Physico-chemistry of energy-dense Li1.2Mn0.52Co0.13Ni0.13Al0.02O2 cathode material for lithium-ion batteries obtained from urea and ethylene glycol fuels. http://hdl.handle.net/10204/11422Nkosi, F, Nithyadharseni Palaniyandy, Kumar Raju, C Billing, and KI Ozoemena. "Physico-chemistry of energy-dense Li1.2Mn0.52Co0.13Ni0.13Al0.02O2 cathode material for lithium-ion batteries obtained from urea and ethylene glycol fuels." (2019): http://hdl.handle.net/10204/11422Nkosi F, Palaniyandy N, Raju K, Billing C, Ozoemena K, Physico-chemistry of energy-dense Li1.2Mn0.52Co0.13Ni0.13Al0.02O2 cathode material for lithium-ion batteries obtained from urea and ethylene glycol fuels; 2019. http://hdl.handle.net/10204/11422 .TY - Conference Presentation AU - Nkosi, F AU - Palaniyandy, Nithyadharseni AU - Raju, Kumar AU - Billing, C AU - Ozoemena, KI AB - A lithium manganese rich-transition metal oxide, Li1.2Mn0.52Co0.13Ni0.13Al0.02O2 (LMNCA) cathode was successfully prepared by the combustion method with urea (i.e., LMNCA-urea) and ethylene glycol (EG) (i.e., LMNCA-EG) used as fuels. The effects of the combustion fuels on the physical (XRD, XPS, Raman, FE-SEM and BET) and electrochemical properties of the samples were thoroughly evaluated. Both LMNCA samples exhibit a highly ordered crystalline 'layered-layered' structure. LMNCA-urea delivered a highest specific capacity of 295 mAh g-1 with the capacity retention of 84% after 50 cycles, while the LMNCA-EG gave a specific capacity of 240 mAh g-1 (capacity retention of 78%) after 50 cycles. However, the EG-based combustion synthesis suppresses voltage decay by its ability to prevent the undesirable transformation of the layered-layered phase to the layered-to-spinel phase upon continuous cycling and improves the charge-transfer kinetics of the LMNCA. The results provide a promise that EG-based combustion can be tuned to provide high-performance LMNCA for future application. DA - 2019-09 DB - ResearchSpace DP - CSIR KW - Combustion fuels KW - Ethylene glycol KW - High-energy LMNCA KW - Lithium-ion battery KW - Suppression of voltage decay LK - https://researchspace.csir.co.za PY - 2019 SM - 2053-1591 T1 - Physico-chemistry of energy-dense Li1.2Mn0.52Co0.13Ni0.13Al0.02O2 cathode material for lithium-ion batteries obtained from urea and ethylene glycol fuels TI - Physico-chemistry of energy-dense Li1.2Mn0.52Co0.13Ni0.13Al0.02O2 cathode material for lithium-ion batteries obtained from urea and ethylene glycol fuels UR - http://hdl.handle.net/10204/11422 ER -