Journal
APPLIED SURFACE SCIENCE
Volume 605, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2022.154757
Keywords
Li storage materials; Carbon host; Metal organic frameworks; Porous structure; Li metal battery; Electrochemistry
Categories
Funding
- National Research Foundation [NRF- 2021M1A2A2038143, NRF-2018R1A5A1025594]
- ICT of Korea
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In this study, we functionalized porous carbon to improve its wettability and formed a catalyst during lithium deposition, which enhanced the surface morphology and electrochemical performance of the carbon material.
While porous carbon is widely used as a metallic lithium host framework, the weak wettability of the carbon hinders its usage. For this purpose, herein, we functionalized the porous carbon with oxidized nitrogen groups by utilizing nitric acid. We found that the functionalized porous carbon demonstrated an enhanced wettability compared to its non-functionalized counterpart. Moreover, by functionalizing the carbon surface with oxidized nitrogen during lithium plating and stripping, catalyzed lithium nitride (Li3N) formed in the solid electrolyte interphase which effectively enhanced the surface morphology of lithium deposition. The electrochemical measurements showed a massive improvement in the capacitive behavior of the functionalized porous carbon and an enhanced electrochemistry performance in terms of cyclability and reversibility.
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