LIVIVO - Das Suchportal für Lebenswissenschaften

switch to English language
Erweiterte Suche

Suchergebnis

Treffer 1 - 3 von insgesamt 3

Suchoptionen

  1. Artikel ; Online: Water-Ion Interaction Determines the Mobility of Ions in Highly Concentrated Aqueous Electrolytes.

    Kim, Jungyu / Koo, Bonhyeop / Khammari, Anahita / Park, Kwanghee / Lee, Hochun / Kwak, Kyungwon / Cho, Minhaeng

    ACS applied materials & interfaces

    2024  Band 16, Heft 8, Seite(n) 10033–10041

    Abstract: Solvation engineering plays a critical role in tailoring the performance of batteries, particularly through the use of highly concentrated electrolytes, which offer heterogeneous solvation structures of mobile ions with distinct electrochemical ... ...

    Abstract Solvation engineering plays a critical role in tailoring the performance of batteries, particularly through the use of highly concentrated electrolytes, which offer heterogeneous solvation structures of mobile ions with distinct electrochemical properties. In this study, we employed spectroscopic techniques and molecular dynamics simulations to investigate mixed-cation (Li
    Sprache Englisch
    Erscheinungsdatum 2024-02-19
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.3c15609
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  2. Artikel ; Online: Low Solvating Power of Acetonitrile Facilitates Ion Conduction: A Solvation-Conductivity Riddle.

    Koo, Bonhyeop / Hwang, Sunwook / Ahn, Kyoung Ho / Lee, Chulhaeng / Lee, Hochun

    The journal of physical chemistry letters

    2024  Band 15, Heft 12, Seite(n) 3317–3322

    Abstract: Acetonitrile (AN) electrolyte solutions display uniquely high ionic conductivities, of which the rationale remains a long-standing puzzle. This research delves into the solution species and ion conduction behavior of 0.1 and 3.0 M LiTFSI AN and propylene ...

    Abstract Acetonitrile (AN) electrolyte solutions display uniquely high ionic conductivities, of which the rationale remains a long-standing puzzle. This research delves into the solution species and ion conduction behavior of 0.1 and 3.0 M LiTFSI AN and propylene carbonate (PC) solutions via Raman and dielectric relaxation spectroscopies. Notably, LiTFSI-AN contains a higher fraction of free solvent uncoordinated to Li ions than LiTFSI-PC, resulting in a lower viscosity of LiTFSI-AN and facilitating a higher level of ion conduction. The abundant free solvent in LiTFSI-AN is attributed to the lower Li-solvation power of AN, but despite this lower Li-solvation power, LiTFSI-AN exhibits a level of salt dissociation comparable to that of LiTFSI-PC, which is found to be enabled by TFSI anions loosely bound to Li ions. This work challenges the conventional notion that high solvating power is a prerequisite for high-conductivity solvents, suggesting an avenue to explore optimal solvents for high-power energy storage devices.
    Sprache Englisch
    Erscheinungsdatum 2024-03-18
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ISSN 1948-7185
    ISSN (online) 1948-7185
    DOI 10.1021/acs.jpclett.4c00545
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  3. Artikel ; Online: Long-life potassium metal batteries enabled by anion-derived solid electrolyte interphase using concentrated ionic liquid electrolytes.

    Jeon, Jiyun / Kang, Seokbum / Koo, Bonhyeop / Kim, Hyojin / Hong, Seung-Tae / Lee, Hochun

    Journal of colloid and interface science

    2024  Band 670, Seite(n) 617–625

    Abstract: Potassium metal batteries (PMBs) show great potential as next-generation energy storage systems yet face challenges such as the dendritic growth of the potassium anode, leading to issues with cycle life and safety. This study reports a potassium salt- ... ...

    Abstract Potassium metal batteries (PMBs) show great potential as next-generation energy storage systems yet face challenges such as the dendritic growth of the potassium anode, leading to issues with cycle life and safety. This study reports a potassium salt-concentrated ionic liquid electrolyte (PCIL) consisting of potassium bis(fluorosulfonyl)imide (KFSI) and 1-methyl-1-propyl pyrrolidinium bis(fluorosulfonyl)imide (Pyr13FSI) to achieve long-life and, safe PMBs. PCIL presents several advantages including outstanding oxidation stability (≈5.2 V), decent ionic conductivity (4.0 mS cm
    Sprache Englisch
    Erscheinungsdatum 2024-05-19
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 241597-5
    ISSN 1095-7103 ; 0021-9797
    ISSN (online) 1095-7103
    ISSN 0021-9797
    DOI 10.1016/j.jcis.2024.05.135
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

Zum Seitenanfang