High-Energy Ni-Rich Cathode Materials for Long-Range and Long-Life Electric Vehicles
DC Field | Value | Language |
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dc.contributor.author | Namkoong, Been | - |
dc.contributor.author | Park, Nam-Yung | - |
dc.contributor.author | Park, Geon-Tae | - |
dc.contributor.author | Shin, Ji-Yong | - |
dc.contributor.author | Beierling, Thorsten | - |
dc.contributor.author | Yoon, Chong S. | - |
dc.contributor.author | Sun, Yang-Kook | - |
dc.date.accessioned | 2022-07-19T04:59:44Z | - |
dc.date.available | 2022-07-19T04:59:44Z | - |
dc.date.created | 2022-05-04 | - |
dc.date.issued | 2022-06 | - |
dc.identifier.issn | 1614-6832 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/170123 | - |
dc.description.abstract | Li-ion batteries (LIBs) in electric vehicles (EVs) are usually operated intermittently and maintained at high states of charge (SoCs) for long periods. Because the internal particles of Ni-rich cathodes are easily exposed to the electrolyte at high SoCs owing to mechanical instability, the electrolyte exposure time-during which highly reactive Ni4+ ions react with the electrolyte-critically affects the degradation of the cathode. Here, 1 mol% B doping of a core-shell concentration gradient (CSG) Li[Ni0.88Co0.10Al0.02]O-2 cathode (CSG-NCA88) is shown to dramatically alter the microstructure of the cathode and effectively protect the particle interior from parasitic electrolyte attack. The B-doped CSG-NCA88 cathode, CSG-NCAB87, maintains its original microstructure even after holding for 500 h in the fully charged state, whereas irreversible structural damage occurs in the pristine CSG-NCA88 cathode during the prolonged electrolyte exposure. The long-term cycling results confirm that the capacity retention of the cathodes is determined by the electrolyte exposure time at a high SoC and that microstructural modification can effectively suppress the time-dependent degradation from electrolyte attack. The proposed CSG-NCAB87 cathode can be utilized at full capacity without restricting the SoC, thus realizing the development of economical high-energy-density LIBs. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | High-Energy Ni-Rich Cathode Materials for Long-Range and Long-Life Electric Vehicles | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Sun, Yang-Kook | - |
dc.identifier.doi | 10.1002/aenm.202200615 | - |
dc.identifier.scopusid | 2-s2.0-85128174543 | - |
dc.identifier.wosid | 000782776800001 | - |
dc.identifier.bibliographicCitation | ADVANCED ENERGY MATERIALS, v.12, no.21, pp.1 - 9 | - |
dc.relation.isPartOf | ADVANCED ENERGY MATERIALS | - |
dc.citation.title | ADVANCED ENERGY MATERIALS | - |
dc.citation.volume | 12 | - |
dc.citation.number | 21 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 9 | - |
dc.type.rims | ART | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | LITHIUM-ION BATTERIES | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PROPERTIES | - |
dc.subject.keywordPlus | LIALYNI1-X-YCOXO2 CATHODE | - |
dc.subject.keywordPlus | DEGRADATION MECHANISM | - |
dc.subject.keywordPlus | ACCELERATED CALENDAR | - |
dc.subject.keywordPlus | THERMAL-STABILITY | - |
dc.subject.keywordPlus | NCA CATHODE | - |
dc.subject.keywordPlus | DENSITY | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | GENERATION | - |
dc.subject.keywordAuthor | boron doping | - |
dc.subject.keywordAuthor | exposure time | - |
dc.subject.keywordAuthor | microcracks | - |
dc.subject.keywordAuthor | microstructure | - |
dc.subject.keywordAuthor | Ni-rich layered cathodes | - |
dc.subject.keywordAuthor | rod shape | - |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/10.1002/aenm.202200615 | - |
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