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Cho, Jaephil
Nano Energy Storage Material Lab.
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Surface and Interfacial Chemistry in the Nickel-Rich Cathode Materials

Author(s)
Kim, JunhyeokCha, HyungyeonLee, HyomyungOh, PilgunCho, Jaephil
Issued Date
2020-04
DOI
10.1002/batt.201900131
URI
https://scholarworks.unist.ac.kr/handle/201301/31549
Fulltext
https://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/batt.201900131
Citation
BATTERIES & SUPERCAPS, v.3, no.4, pp.309 - 322
Abstract
With increasing demands for high energy lithium-ion batteries, layered nickel-rich cathode materials have been considered as the most promising candidate due to their high reversible capacity and low cost. Although some of the materials with nickel contents <= 60 % were commercialized, there are tremendous obstacles for further improvement of electrochemical performance, which is strongly related to the unstable cathode surface and interfacial properties. In this regard, a specific review on the interfacial chemistry between the cathode and electrolyte during electrochemical testing is provided. We highlight the underpinning interfacial chemistry and degradation mechanisms of the cathode materials. Finally, light is shed on the recent efforts for enhancing the interfacial stability of the nickel-rich cathode materials.
Publisher
WILEY-V C H VERLAG GMBH
ISSN
2566-6223
Keyword (Author)
nickel-rich cathodesinterfacial stabilitysolid-electrolyte interphaseelectrolyte decompositionssingle crystalline characteristics
Keyword
LITHIUM-ION BATTERIESPOSITIVE ELECTRODE MATERIALSELECTROCHEMICAL MASS-SPECTROMETRYRAY PHOTOELECTRON-SPECTROSCOPYTRANSITION-METAL DISSOLUTIONIN-SITU OBSERVATIONHIGH-ENERGYSINGLE-CRYSTALLIAL1/4NI3/4O2 R(3)OVER-BAR-MCONCENTRATION-GRADIENT

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