Kim, So Yeun Il Song, Young Wee, Jae-Hyung Kim, Chang Hyo Ahn, Byung Wook Lee, Jung Woo Shu, Su Jeong Terrones, Mauricio Kim, Yoong Ahm Yang, Cheol-Min 2024-01-19T19:00:46Z 2024-01-19T19:00:46Z 2021-09-05 2019-11 0008-6223 https://pubs.kist.re.kr/handle/201004/119364 In the fabrication of safe, but powerful lithium ion batteries (LIBs), graphene-related materials are being actively examined in order to meet the demand for applications such as electric vehicles and smart grids. However, most of this work has focused on liquid-phase exfoliated graphene and reduced graphene oxide. Herein, we demonstrate a simple, but effective route for significantly improving the electro-chemical performance of currently available LIBs by coupling current collector with catalytically grown large-area graphene. When coating current collectors with large-area three-layered graphene, a reduction in the internal resistance (or effective electron transfer) between the current collector and active materials was observed. The graphene also protected the underlying collector from corrosion, greatly improving the power capability and cyclability of LIBs. The three-layered graphene provided the best electrochemical performance and corrosion resistance because of its high electrical conductivity and mechanical stability during the transfer process. We believe that our approach using interfacial graphene coating can be used with all kinds of electrochemical energy-storage systems, in which high corrosion resistance, electrical conductivity, and flexibility are critical. (C) 2019 Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD ELECTROCHEMICAL PERFORMANCE ALUMINUM FOIL STABILITY GRAPHITE CATHODES BINDERS ISSUES FILMS OXIDE Few-layer graphene coated current collectors for safe and powerful lithium ion batteries Article 10.1016/j.carbon.2019.07.032 1 CARBON, v.153, pp.495 - 503 CARBON 153 495 503 scie scopus 000485054200057 2-s2.0-85069707748 Chemistry, Physical Materials Science, Multidisciplinary Chemistry Materials Science Article ELECTROCHEMICAL PERFORMANCE ALUMINUM FOIL STABILITY GRAPHITE CATHODES BINDERS ISSUES FILMS OXIDE LiCoO2 cathode Internal resistance Anti-corrosion Al current collectors Graphene Chemical vapor deposition Li-ion batteries