Achieving three-dimensional lithium sulfide growth in lithium-sulfur batteries using high-donor-number anions

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dc.contributor.authorChu, Hyunwonko
dc.contributor.authorNoh, Hyungjunko
dc.contributor.authorKim, Yun-Jungko
dc.contributor.authorYuk, Seongminko
dc.contributor.authorLee, Juhyukko
dc.contributor.authorLee, Jinhongko
dc.contributor.authorKwack, Hobeomko
dc.contributor.authorKim, YunKyoungko
dc.contributor.authorYang, Doo-Kyungko
dc.contributor.authorKim, Hee-Takko
dc.date.accessioned2019-02-20T05:15:11Z-
dc.date.available2019-02-20T05:15:11Z-
dc.date.created2019-01-28-
dc.date.created2019-01-28-
dc.date.created2019-01-28-
dc.date.issued2019-01-
dc.identifier.citationNATURE COMMUNICATIONS, v.10-
dc.identifier.issn2041-1723-
dc.identifier.urihttp://hdl.handle.net/10203/250407-
dc.description.abstractUncontrolled growth of insulating lithium sulfide leads to passivation of sulfur cathodes, which limits high sulfur utilization in lithium-sulfur batteries. Sulfur utilization can be augmented in electrolytes based on solvents with high Gutmann Donor Number; however, violent lithium metal corrosion is a drawback. Here we report that particulate lithium sulfide growth can be achieved using a salt anion with a high donor number, such as bromide or triflate. The use of bromide leads to similar to 95 % sulfur utilization by suppressing electrode passivation. More importantly, the electrolytes with high-donor-number salt anions are notably compatible with lithium metal electrodes. The approach enables a high sulfur-loaded cell with areal capacity higher than 4mA h cm-2 and high sulfur utilization (> 90 %). This work offers a simple but practical strategy to modulate lithium sulfide growth, while conserving stability for high-performance lithium-sulfur batteries.-
dc.languageEnglish-
dc.publisherNATURE PUBLISHING GROUP-
dc.titleAchieving three-dimensional lithium sulfide growth in lithium-sulfur batteries using high-donor-number anions-
dc.typeArticle-
dc.identifier.wosid000455595400011-
dc.identifier.scopusid2-s2.0-85060027293-
dc.type.rimsART-
dc.citation.volume10-
dc.citation.publicationnameNATURE COMMUNICATIONS-
dc.identifier.doi10.1038/s41467-018-07975-4-
dc.contributor.localauthorKim, Hee-Tak-
dc.contributor.nonIdAuthorChu, Hyunwon-
dc.contributor.nonIdAuthorKwack, Hobeom-
dc.contributor.nonIdAuthorKim, YunKyoung-
dc.contributor.nonIdAuthorYang, Doo-Kyung-
dc.description.isOpenAccessY-
dc.type.journalArticleArticle-
dc.subject.keywordPlusLI-S BATTERIES-
dc.subject.keywordPlusLI-O-2 BATTERY-
dc.subject.keywordPlusHIGH-CAPACITY-
dc.subject.keywordPlusCATHODE-
dc.subject.keywordPlusGRAPHENE-
dc.subject.keywordPlusPOLYSULFIDES-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusSURFACE-
dc.subject.keywordPlusSALT-
dc.subject.keywordPlusELECTRODES-
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