Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김종호 | - |
dc.date.accessioned | 2023-12-22T01:47:31Z | - |
dc.date.available | 2023-12-22T01:47:31Z | - |
dc.date.issued | 2023-08 | - |
dc.identifier.citation | ACS Nano, v. 17, NO. 17, Page. 17372.0-17382.0 | - |
dc.identifier.issn | 1936-0851;1936-086X | - |
dc.identifier.uri | https://pubs.acs.org/doi/10.1021/acsnano.3c05405 | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/187825 | - |
dc.description.abstract | Organic solid electrolytes compatible with all-solid-state Li metal batteries (LMBs) are essential to ensuring battery safety, high energy density, and long-term cycling performance. However, it remains a challenge to develop an approach to provide organic solid electrolytes with capabilities for the facile dissociation of strong Li-ion pairs and fast transport of ionic components. Herein, a diethylene glycol-modified pyridinium covalent organic framework (DEG-PMCOF) with a well-defined periodic structure is prepared as a multicomponent solid electrolyte with a cationic moiety of high polarity, an additional flexible ion-transporter, and an ordered ionic channel for all-solid-state LMBs. The DEG-containing pyridinium groups of DEG-PMCOF allow a lower dissociation energy of Li salts and a smaller energy barrier of Li-ion transport, leading to high ion conductivity (1.71 × 10-4 S cm-1) and a large Li-ion transfer number (0.61) at room temperature in the solid electrolyte. The DEG-PMCOF solid electrolyte exhibits a wide electrochemical stability window and effectively suppresses the formation of Li dendrites and dead Li in all-solid-state LMBs. Molecular dynamics and density functional theory simulations provide insights into the mechanisms for the enhanced Li-ion transport driven by the integrated diffusion process based on hopping motion, vehicle motion, and free diffusion of DEG-PMCOF. The all-solid-state LMB assembled with a DEG-PMCOF solid electrolyte displays a high specific capacity with a retention of 99% and an outstanding Coulombic efficiency of 99% at various C-rates during long-term cycling. This DEG-PMCOF approach can offer an effective route to design various solid-state Li batteries. © 2023 American Chemical Society. | - |
dc.description.sponsorship | This work was supported by grants from the Basic Science Research Program (NRF-2021R1A2C2003837, NRF2021R1A2B5B01002879), Basic Research Laboratory Program ( 2021R1A4A5032463), and National R& D Program ( 2021M3C1C3097211) through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT, and Future Planning. | - |
dc.language | en | - |
dc.publisher | American Chemical Society | - |
dc.subject | all-solid-state lithium metal battery | - |
dc.subject | and organic solid electrolyte | - |
dc.subject | covalent organic framework | - |
dc.subject | dendrite-free | - |
dc.subject | multicomponent ionic conductor | - |
dc.title | Multicomponent Covalent Organic Framework Solid Electrolyte Allowing Effective Li-Ion Dissociation and Diffusion for All-Solid-State Batteries | - |
dc.type | Article | - |
dc.relation.no | 17 | - |
dc.relation.volume | 17 | - |
dc.identifier.doi | 10.1021/acsnano.3c05405 | - |
dc.relation.page | 17372.0-17382.0 | - |
dc.relation.journal | ACS Nano | - |
dc.contributor.googleauthor | Lee, Jun-Hyeong | - |
dc.contributor.googleauthor | Lee, Hajin | - |
dc.contributor.googleauthor | Lee, Jaewoo | - |
dc.contributor.googleauthor | Kang, Tae Woog | - |
dc.contributor.googleauthor | Park, Jung Hyun | - |
dc.contributor.googleauthor | Shin, Jae-Hoon | - |
dc.contributor.googleauthor | Lee, Hyunji | - |
dc.contributor.googleauthor | Majhi, Dibyananda | - |
dc.contributor.googleauthor | Lee, Sang Uck | - |
dc.contributor.googleauthor | Kim, Jong-Ho | - |
dc.sector.campus | E | - |
dc.sector.daehak | 공학대학 | - |
dc.sector.department | 재료화학공학과 | - |
dc.identifier.pid | kjh75 | - |
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