Mitigating storage-induced degradation of Ni-rich LiNi0.8Co0.1Mn0.1O2 cathode material by surface tuning with phosphate
DC Field | Value | Language |
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dc.contributor.author | Ryu, Won-Gyue | - |
dc.contributor.author | Shin, Hyun-Seop | - |
dc.contributor.author | Park, Min-Sik | - |
dc.contributor.author | Kim, Hansung | - |
dc.contributor.author | Jung, Kyu-Nam | - |
dc.contributor.author | Lee, Jong-Won | - |
dc.date.accessioned | 2023-08-22T03:05:42Z | - |
dc.date.available | 2023-08-22T03:05:42Z | - |
dc.date.created | 2023-07-21 | - |
dc.date.issued | 2019-08 | - |
dc.identifier.issn | 0272-8842 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/189458 | - |
dc.description.abstract | The Ni-rich LiNi0.8Co0.1Mn0.1O2 layered oxide (NCM811) is attracting considerable attention as a high-capacity cathode material for rechargeable Li-ion batteries. However, due to its inherent structural/chemical/electrochemical instability, NCM811 with high Ni content suffers from significant performance degradation upon storage even in ambient atmospheres as well as during charge-discharge cycling. Herein, we demonstrate a simple but effective surface-tuning approach to mitigate storage-induced degradation of NCM811, which is based on the conversion of undesirable Li residues to a protective Li3PO4 nanolayer via phosphate treatment. The accelerated storage stability test shows that phosphate-modified NCM811 exhibits remarkably improved electrochemical performance (capacity, cycle life, and rate capability) over the pristine one after being stored under harsh environmental conditions. A combined analytical study indicates that surface tuning through phosphate treatment enhances the storage stability of NCM811 by eliminating impurity-forming Li residues and producing a Li3PO4 nanolayer that inhibits parasitic reactions at the electrode-electrolyte interface. Furthermore, Li3PO4 provides an effective barrier to H2O and CO2 infiltration into the particle agglomerates, thereby suppressing the loss of particle integrity. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | Mitigating storage-induced degradation of Ni-rich LiNi0.8Co0.1Mn0.1O2 cathode material by surface tuning with phosphate | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Jong-Won | - |
dc.identifier.doi | 10.1016/j.ceramint.2019.04.092 | - |
dc.identifier.scopusid | 2-s2.0-85064194036 | - |
dc.identifier.wosid | 000471086200040 | - |
dc.identifier.bibliographicCitation | CERAMICS INTERNATIONAL, v.45, no.11, pp.13942 - 13950 | - |
dc.relation.isPartOf | CERAMICS INTERNATIONAL | - |
dc.citation.title | CERAMICS INTERNATIONAL | - |
dc.citation.volume | 45 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 13942 | - |
dc.citation.endPage | 13950 | - |
dc.type.rims | ART | - |
dc.type.docType | 정기학술지(Article(Perspective Article포함)) | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Ceramics | - |
dc.subject.keywordPlus | LITHIUM-ION BATTERY | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PERFORMANCE | - |
dc.subject.keywordPlus | LI | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | LAYER | - |
dc.subject.keywordPlus | PROPERTY | - |
dc.subject.keywordPlus | EXPOSURE | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | AIR | - |
dc.subject.keywordAuthor | LiNi0.8CO0.1Mn0.1O2 | - |
dc.subject.keywordAuthor | Surface tuning | - |
dc.subject.keywordAuthor | Lithium phosphate | - |
dc.subject.keywordAuthor | Storage stability | - |
dc.subject.keywordAuthor | Residual lithium | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0272884219309174?via%3Dihub | - |
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