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DC Field Value Language Hyoung, Jooeun - Heo, Jongwook W. - Jeon, Boosik - Hong, Seung-Tae - 2021-10-17T02:00:04Z - 2021-10-17T02:00:04Z - 2021-09-17 - 2021-08 -
dc.identifier.issn 2050-7488 -
dc.identifier.uri -
dc.description.abstract Calcium-ion batteries (CIBs) are getting increasing attention as post-lithium-ion batteries owing to their theoretical and potential advantages in terms of energy density and cost-effectiveness. However, most of the reported cathode materials suffer from low capacity or cyclability in dried nonaqueous electrolytes. So far, all of the materials with high capacity (>100 mA h g−1) contain crystal water, which was considered to be crucial to the structural stability, enabling facile Ca diffusion. Here, we report β-Ag0.33V2O5as a high-capacity cathode material for CIBs without crystal water. After the initial activation process, the material exhibited a capacity of 179 mA h g−1at approximately 2.8 V (vs.Ca2+/Ca) in the ninth cycle and showed a modest cycling performance. The capacity is the highest among the Ca cathode materials without crystal water reported to date. We revealed that the activation process was caused by a replacement reaction between the silver and calcium ions. This material demonstrates that crystal water is not an essential component of CIB electrode materials for a high capacity, stimulating the ongoing research for developing higher-performance materials. © The Royal Society of Chemistry 2021. -
dc.language English -
dc.publisher Royal Society of Chemistry -
dc.title Silver vanadium bronze, beta-Ag0.33V2O5: crystal-water-free high-capacity cathode material for rechargeable Ca-ion batteries -
dc.type Article -
dc.identifier.doi 10.1039/d1ta03881h -
dc.identifier.scopusid 2-s2.0-85115717824 -
dc.identifier.bibliographicCitation Journal of Materials Chemistry A, v.9, no.36, pp.20776 - 20782 -
dc.description.isOpenAccess FALSE -
dc.subject.keywordPlus MAGNESIUM -
dc.subject.keywordPlus CALCIUM -
dc.subject.keywordPlus INTERCALATION -
dc.subject.keywordPlus PERFORMANCE -
dc.subject.keywordPlus ELECTRODE -
dc.citation.endPage 20782 -
dc.citation.number 36 -
dc.citation.startPage 20776 -
dc.citation.title Journal of Materials Chemistry A -
dc.citation.volume 9 -
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Department of Energy Science and Engineering Battery Materials Discovery Laboratory 1. Journal Articles


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