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Near-Saturated Coordinated Cations in Oxyhalide Superionic Conductors Boost High-Rate All-Solid-State Batteries

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dc.contributor.authorQian, L.
dc.contributor.authorTu, S.
dc.contributor.authorWang, Y.
dc.contributor.authorYang, X.
dc.contributor.authorYe, C.
dc.contributor.authorQiao, S.-Z.
dc.date.issued2025
dc.descriptionPublished: June 17, 2025
dc.description.abstractAmorphous oxyhalide solid electrolytes (SEs) have garnered significant attention due to their excellent cathodic stability and favorable mechanical properties. However, the correlations between the structural characteristics in the amorphous phase and Li+ transport behavior remain underexplored, limiting further promotion of the ionic conductivities of these SEs. Herein, we establish a correlation between cationic coordination saturation in amorphous oxyhalide SEs and Li+ transport. Based on this correlation, near-saturated coordinated cation (NSCC)-incorporated Li1.5Zr0.5M0.5Cl5.0O0.5 SEs (M = Nb or Ta, denoted as Nb- or Ta-LZCO) are developed with abundant vacancy concentrations and weakened Li-Cl interaction, thereby significantly enhancing Li+ transport. As a result, the Nb-LZCO and Ta-LZCO SEs achieve impressive ionic conductivities of 2.33 and 3.88 mS cm-1, respectively, at 25 °C. All-solid-state lithium batteries assembled with representative Ta-LZCO and a LiNi0.8Mn0.1Co0.1O2 cathode demonstrate superior rate performance and long-term cycling stability, delivering a high specific capacity of 120.0 mAh g-1 at 10.0 C (1 C = 195 mA g-1) and an outstanding capacity retention of 84.85% after 2000 cycles. This work establishes a generalizable strategy for designing amorphous SEs with high ionic conductivity by modulating the cationic coordination environment.
dc.description.statementofresponsibilityLong Qian, Shuibin Tu, Yue Wang, Xiaofei Yang, Chao Ye, and Shi-Zhang Qiao
dc.identifier.citationJournal of the American Chemical Society, 2025; 147(26):23170-23179
dc.identifier.doi10.1021/jacs.5c07052
dc.identifier.issn0002-7863
dc.identifier.issn1520-5126
dc.identifier.orcidQian, L. [0000-0002-7719-8102]
dc.identifier.orcidTu, S. [0009-0008-4163-6466]
dc.identifier.orcidQiao, S.-Z. [0000-0002-1220-1761] [0000-0002-4568-8422]
dc.identifier.urihttps://hdl.handle.net/2440/145345
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.relation.granthttp://purl.org/au-research/grants/arc/IL230100039
dc.relation.granthttp://purl.org/au-research/grants/arc/CE230100032
dc.relation.granthttp://purl.org/au-research/grants/arc/DP220102596
dc.relation.granthttp://purl.org/au-research/grants/arc/DE230101011
dc.rights© 2025 American Chemical Society
dc.source.urihttps://doi.org/10.1021/jacs.5c07052
dc.subjectbenefits
dc.subjectcostumer satisfaction
dc.subjectloyalty
dc.subjectservice quality
dc.titleNear-Saturated Coordinated Cations in Oxyhalide Superionic Conductors Boost High-Rate All-Solid-State Batteries
dc.title.alternative.
dc.typeJournal article
pubs.publication-statusPublished

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