Publication Type : Journal
Publisher : Springer
Source : MRS Communications
Url : https://link.springer.com/article/10.1557/s43579-022-00291-5
Campus : Kochi
School : Center for Nanosciences, School of Nanosciences
Center : Nanosciences
Year : 2022
Abstract : Cobalt-free layered cathode materials are of interest for advanced Li-ion batteries especially, layered Li[Li0.2Ni0.2Mn0.6]O2 nanoparticles (Li- and Mn-Rich, LMR). Herein, we present results of two different particle sizes controlled by the lithium precursors during sol–gel synthesis. LMR with particle size ~ 40 nm (LMR_40) exhibited better performance compared to LMR_150 (size ~ 150 nm) at both room temperature and at an elevated temperature of 55°C. However, the LMR_40 displayed more voltage fade compared to LMR_150 at both room temperature and elevated temperature cycling. LMR_40 is a potential cathode for high energy density Li-ion batteries and surface-engineering would improve the performances further.
Cite this Research Publication : Jayasree, S.S., Nair, S., Santhanagopalan, D. Particle size-dependent electrochemical performance of cobalt-free, lithium- and manganese-rich layered cathode at elevated temperature (2022) MRS Communications, 12, 1183-1189.