ACS Energy Letters · 2020 · 82 citations · 33 references
EngineeringMof ParticlesElectrode-electrolyte InterfaceOptimized Interfacial CompatibilityChemistryMetal–organic FrameworksChemical EngineeringIon Transport PathwaysMetal-organic PolyhedronHybrid MaterialsMaterials ScienceMetal–organic Frameworks EnablesBattery Electrode MaterialsEnergy StorageSolid-state BatteryMetal-organic FrameworksElectrochemistryLi-ion Battery MaterialsElectrochemical Energy StorageBatteriesFunctional Materials
Metal–organic frameworks (MOFs) have been attracting a great deal of attention as potential solid electrolytes (SEs). However, the interfacial compatibility of MOF-based SEs caused by the physical contact among MOF particles, the polymer binder, and electrodes is not yet fully determined. Herein, a bioinspired design strategy aiming to build ion transport pathways at interfaces was introduced. The MOF-to-MOF transport paths were built via in situ ring opening of epoxide, akin to the protein molecules that transport the ion across the cell walls. After optimization, the obtained SE is endowed with a high ion conductivity of 1.70 × 10–3 S cm–1 at 30 °C, a wide electrochemical window of 4.6 V, a high Li+ transference number of 0.8, and a decreased interface resistance. Consequently, the fabricated quasi-solid metal batteries exhibit higher and more stable cycling performance compared to the performance of those without interface optimization. This strategy for optimizing the interfacial compatibility of MOFs thus exploits a new avenue for developing high-performance SEs for various metal batteries.
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Dingchang Lin, Wei Liu, Yayuan Liu et al. · Nano Letters · 2015 · 976 citations
Polymer Electrolyte, Engineering, Electrode-electrolyte Interface +22
Interfaces in Solid-State Lithium Batteries
Lin Xu, Shun Tang, Yu Cheng et al. · Joule · 2018 · 647 citations · Full text
Materials Science, Engineering, Advanced Electrode Material +9