There are no files associated with this item.
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.contributor.author | Kim, Jueun | - |
dc.contributor.author | Jayasubramaniyan, S. | - |
dc.contributor.author | Kim, Seokjin | - |
dc.contributor.author | Kim, Donghwi | - |
dc.contributor.author | Ko, Minseok | - |
dc.contributor.author | Reddy, N. S. | - |
dc.contributor.author | Cho, Kwon-Koo | - |
dc.contributor.author | Cho, Yoon-Gyo | - |
dc.contributor.author | Nam, Sang Yong | - |
dc.contributor.author | Cho, Woongrae | - |
dc.contributor.author | Sung, Jaekyung | - |
dc.date.accessioned | 2024-08-16T13:35:08Z | - |
dc.date.available | 2024-08-16T13:35:08Z | - |
dc.date.created | 2024-08-16 | - |
dc.date.issued | 2024-07 | - |
dc.description.abstract | The increasing demand for electric vehicles (EVs) has prompted extensive research in the development of lithium-ion batteries (LIBs) with high volumetric energy density. The graphite anode possesses a tap density of 2.25 g cc-1, resulting in a volumetric energy density of over 770 W h L-1. However, the practical electrode density of 1.4-1.6 g cc-1 leads to a lower volumetric energy density of similar to 550 W h L-1, and increasing electrode density beyond 1.6 g cc-1 is limited owing to the pore closure and poor electrolyte penetration, which leads to an imbalance in the N/P ratio resulting in Li metal plating. Hence, enhancing the electrolyte permeation into the densely packed graphite electrode is the crucial aspect for achieving high volumetric energy density. In this research, we coated a functional polymer (cyanoethyl polyvinyl alcohol), which has a high electrolyte absorption capability on a conventional graphite anode to enhance the electrolyte penetration into the highly densified graphite. As a result, the electrode demonstrated a high cycle stability under a high electrode density of 1.9 g cc-1 without any Li plating, and drastic degradation of capacity retention resulted in a remarkable volumetric energy density exceeding 650 W h L-1. The increasing demand for electric vehicles (EVs) has prompted extensive research in the development of lithium-ion batteries (LIBs) with high volumetric energy density. | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.identifier.doi | 10.1039/d4ta03017f | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.scopusid | 2-s2.0-85200257947 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/83502 | - |
dc.identifier.wosid | 001278917800001 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Achieving high volumetric energy density in graphite anodes through polymer coating with improved electrolyte impregnation | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Energy & Fuels; Materials Science | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | ION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | CHALLENGES | - |
dc.subject.keywordPlus | MECHANISM | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.