journal article·2023-06-05Open access

Growth Mechanism of Lithium Clusters on the Surface of Porous Carbon Framework for Lithium Metal Batteries

Hamzeh Qutaish, Hongjun Chang, Joo Hyeong Suh, Sang A Han, Han-Yup Yum, Min-Sik Park, Janghyuk Moon, Jung Ho Kim

ACS Materials Letters· Volume 5· Issue 6

Abstract

Carbon-based frameworks as a metallic lithium (Li) host have been widely developed to overcome the drawbacks associated with bare Li metal anode. Achieving a complete understanding of the growth mechanism of the Li clusters in the carbon host remains controversial, however, and requires determining the factors involved and their clear causes. Herein, we have carried out density functional theory calculations to predict the growth mechanism of Li clusters by employing different heteroatoms (pyridinic N, pyrrolic N, quaternary N, and Co–N4). As a key feature, the Co–N4 affects the Li deposition behavior with axial Li growth on the surfaces of the carbon frameworks, while the other heteroatoms (i.e., nitrogen defects) induce vertical Li growth. By combining theoretical calculations and experiments, this detailed investigation widens the scope of future research on carbon host materials for practical usage of Li metal batteries.
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Research context

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Inorganic Chemistry and Materials

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Affiliations

Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, North Wollongong 2500, NSW, Australia

Department of Energy Systems Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea

Department of Advanced Materials Engineering for Information and Electronics, Integrated Education Institute for Frontier Science & Technology (BK21 Four), Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea

School of Advanced Materials Science and Engineering Department, Sungkyunkwan University, 2066 Seobu-ro, Suwon 16419, Republic of Korea

Funding

National Research Foundation of Korea · Chung-Ang University

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