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Lee, Hyun-Wook
Energy Storage and Electron Microscopy Laboratory
Research Interests
  • Energy storage, secondary batteries, transmission electron microscopy, real time analysis


Coordination Polymers for High-Capacity Li-Ion Batteries: Metal-Dependent Solid-State Reversibility

DC Field Value Language Lee, Hyun Ho ko Lee, Jae Bin ko Park, Yuwon ko Park, Kern Ho ko Okyay, Mahmut Sait ko Shin, Dong-Seon ko Kim, Sunghwan ko Park, Jongnam ko Park, Noejung ko An, Byeong-Kwan ko Jung, Yoon Seok ko Lee, Hyun-Wook ko Lee, Kyu Tae ko Hong, Sung You ko 2018-07-26T09:01:11Z - 2018-07-17 ko 2018-07 ko
dc.identifier.citation ACS APPLIED MATERIALS & INTERFACES, v.10, no.26, pp.22110 - 22118 ko
dc.identifier.issn 1944-8244 ko
dc.identifier.uri -
dc.description.abstract Electrode materials exploiting multielectron-transfer processes are essential components for large-scale energy storage systems. Organic-based electrode materials undergoing distinct molecular redox transformations can intrinsically circumvent the structural instability issue of conventional inorganic-based host materials associated with lattice volume expansion and pulverization. Yet, the fundamental mechanistic understanding of metal-organic coordination polymers toward the reversible electrochemical processes is still lacking. Herein, we demonstrate that metal-dependent spatial proximity and binding affinity play a critical role in the reversible redox processes, as verified by combined 13C solid-state NMR, X-ray absorption spectroscopy, and transmission electron microscopy. During the electrochemical lithiation, in situ generated metallic nanoparticles dispersed in the organic matrix generate electrically conductive paths, synergistically aiding subsequent multielectron transfer to π-conjugated ligands. Comprehensive screening on 3d-metal-organic coordination polymers leads to a high-capacity electrode material, cobalt-2,5-thiophenedicarboxylate, which delivers a stable specific capacity of ∼1100 mA h g-1 after 100 cycles. ko
dc.language 영어 ko
dc.publisher AMER CHEMICAL SOC ko
dc.title Coordination Polymers for High-Capacity Li-Ion Batteries: Metal-Dependent Solid-State Reversibility ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85048717101 ko
dc.identifier.wosid 000438179000039 ko
dc.type.rims ART ko
dc.identifier.doi 10.1021/acsami.8b04678 ko
dc.identifier.url ko
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