Effectiveness of salification against shuttle effect in p-type organic batteries: Case studies of triflimide and iodide salts of N, N '-dimethylphenazine
DC Field | Value | Language |
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dc.contributor.author | Lau, Vincent Wing-hei | - |
dc.contributor.author | Zhang, Jiliang | - |
dc.contributor.author | Lee, Chang-Gi | - |
dc.contributor.author | Kang, Yong-Mook | - |
dc.date.accessioned | 2022-08-25T04:41:04Z | - |
dc.date.available | 2022-08-25T04:41:04Z | - |
dc.date.created | 2022-08-25 | - |
dc.date.issued | 2022-10-15 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/143308 | - |
dc.description.abstract | Salification is one solubility reduction strategy for limiting the deleterious shuttle effect in organic batteries, although its applicability for oxidizable (p-type) cationic compounds is less established. Using as case studies the salts N,N'-dimethylphenazinium iodide, [DMPZ] [I], and triflimide, [DMPZ] [TFSI], we demonstrate that solubility reduction by the anion does not necessarily translate into improved battery performance. As exemplified by the formation of the well-known I-/I-2 shuttle in [DMPZ] [I] cathode, intermolecular interactions that reduce solubility can be lost as state-of-charge changes during redox reaction (i.e. charge/discharge). Another point of consideration is the compatibility in terms of (electro)chemical stability of the electrode components and the charge/discharge parameters when placed together within a cell, even if they are individually stable. Here, the iodide salt underwent decomposition within the literature-optimized electrolyte to form a cathode-electrolyte interface, encapsulating the redox-active compound and changing the charge storage mechanism to one of pseudo-capacitance, thus deteriorating capacity retention. Considering the multitude of requirements as listed here, salification appears challenging to implement for improving battery performance for p-type molecular compounds. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | ELECTRODE MATERIALS | - |
dc.subject | CARBON CATHODE | - |
dc.subject | ION BATTERIES | - |
dc.subject | PHENAZINE | - |
dc.subject | DEGRADATION | - |
dc.subject | STABILITY | - |
dc.subject | DESIGN | - |
dc.title | Effectiveness of salification against shuttle effect in p-type organic batteries: Case studies of triflimide and iodide salts of N, N '-dimethylphenazine | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kang, Yong-Mook | - |
dc.identifier.doi | 10.1016/j.cej.2022.137292 | - |
dc.identifier.scopusid | 2-s2.0-85131958220 | - |
dc.identifier.wosid | 000833417100002 | - |
dc.identifier.bibliographicCitation | CHEMICAL ENGINEERING JOURNAL, v.446 | - |
dc.relation.isPartOf | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.title | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.volume | 446 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | ELECTRODE MATERIALS | - |
dc.subject.keywordPlus | CARBON CATHODE | - |
dc.subject.keywordPlus | ION BATTERIES | - |
dc.subject.keywordPlus | PHENAZINE | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordAuthor | Organic batteries | - |
dc.subject.keywordAuthor | Intermolecular interactions | - |
dc.subject.keywordAuthor | Nitrogen heterocycles electrochemistry | - |
dc.subject.keywordAuthor | Redox chemistry | - |
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