There are no files associated with this item.
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 9974 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 9965 | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 13 | - |
dc.contributor.author | Cho, Yoon-Gyo | - |
dc.contributor.author | Jung, Seo Hyun | - |
dc.contributor.author | Jeong, Jihong | - |
dc.contributor.author | Cha, Hyungyeon | - |
dc.contributor.author | Baek, Kyungeun | - |
dc.contributor.author | Sung, Jaekyung | - |
dc.contributor.author | Kim, Minsoo | - |
dc.contributor.author | Lee, Hyun Tae | - |
dc.contributor.author | Kong, Hoyoul | - |
dc.contributor.author | Cho, Jaephil | - |
dc.contributor.author | Kang, Seok Ju | - |
dc.contributor.author | Park, Jong Mok | - |
dc.contributor.author | Song, Hyun-Kon | - |
dc.date.accessioned | 2023-12-21T16:09:37Z | - |
dc.date.available | 2023-12-21T16:09:37Z | - |
dc.date.created | 2021-04-20 | - |
dc.date.issued | 2021-03 | - |
dc.description.abstract | Nickel-rich layered oxides (LiNi1-x-yCoxMnyO2; (1 - x - y) >= 0.6), the high-energy-density cathode materials of lithium-ion batteries (LIBs), are seriously unstable at voltages higher than 4.5 V versus Liar and temperatures higher than 50 degrees C. Herein, we demonstrated that the failure mechanism of a nickel-rich layered oxide (LiNi0.6Co0.2Mn0.2O2) behind the instability was successfully suppressed by employing cyanoethyl poly(vinyl alcohol) having pyrrolidone moieties (Pyrd-PVA-CN) as a metal-ion-chelating gel polymer electrolyte (GPE). The metal-ion-chelating GPE blocked the plating of transition-metal ions dissolved from the cathode by capturing the ions (anode protection). High-concentration metal-ion environments developed around the cathode surface by the GPE suppressed the irreversible phase transition of the cathode material from the layered structure to the rock-salt structure (cathode protection). Resultantly, the capacity retention was significantly improved at a high voltage and a high temperature. Capacity retention and coulombic efficiency of a full-cell configuration of a nickel-rich layered oxide with graphite were significantly improved in the presence of the GPE especially at a high cutoff voltage (4.4 V) and an elevated temperature (55 degrees C). | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.13, no.8, pp.9965 - 9974 | - |
dc.identifier.doi | 10.1021/acsami.0c21164 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.scopusid | 2-s2.0-85102415215 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/52741 | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acsami.0c21164 | - |
dc.identifier.wosid | 000626502700051 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Metal-Ion Chelating Gel Polymer Electrolyte for Ni-Rich Layered Cathode Materials at a High Voltage and an Elevated Temperature | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics; Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Li-ion battery | - |
dc.subject.keywordAuthor | gel polymer electrolyte | - |
dc.subject.keywordAuthor | metal-ion chelating | - |
dc.subject.keywordAuthor | high voltage | - |
dc.subject.keywordAuthor | high temperature | - |
dc.subject.keywordAuthor | Ni-rich cathode | - |
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.