Publications by authors named "Sungmin Na"
Article Synopsis
- Research has shown that enhancing the electrical conductivity of LiNiCoMnO (Ni-rich NCM) is crucial for improving its electrochemical performance, with multiwalled carbon nanotubes (MWCNTs) being a promising treatment approach.
- The study presents a novel method using a dispersed MWCNT solution in ethanol to create 1D and 2D network structures on Ni-rich NCM, which improves electron movement and minimizes ion-transfer resistance.
- The enhanced Ni-rich NCM demonstrates impressive performance with 87.64% rate capability at 3C/0.2C and 94.53% cycle retention after 50 cycles at 1C/1C, proving effective for advanced energy storage solutions.
Maximizing the Structural Stability of the Na-Rich Prussian Blue Analogue Electrode through Charge Cutoff Voltage Regulation.
ACS Appl Mater Interfaces
October 2024
Prussian blue and its analogues (PB/PBAs) are promising sodium-ion battery cathode materials due to their easy synthesis and excellent discharge capacity. However, their low structural stability poses a challenge. One critical factor affecting stability is the charge cutoff voltage.
View Article and Find Full Text PDFThe NASICON-type LiAlTi(PO) (LATP) solid electrolyte is a promising candidate for next-generation lithium-ion batteries due to its high stability in air and moisture, as well as high bulk ion conductivity. However, the grain boundary resistance of LATP limits its overall ionic conductivity, which remains a major obstacle to the commercialization of all-solid-state batteries. In this study, we made efforts to solve the problem by promoting the minimization of voids and the formation of well-defined grain boundaries by controlling the temperature of two heat treatments during the synthesis process.
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