Synergized Tricomponent All‐Inorganics Solid Electrolyte for Highly Stable Solid‐State Li‐Ion Batteries

Xu, Guanghua; Zhang, Xin; Sun, Shu Yang; Zhou, Yangfan; Liu, Yongfeng; Yang, Hangsheng; Huang, Zhenguo; Fang, Fang; Sun, Wenping; Hong, Zhanglian; Gao, Mingxia; Pan, Hongge

doi:10.1002/advs.202207627

Cited by 4 publications

(2 citation statements)

References 70 publications

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“…The composite electrolyte delivered 8.02 × 10 –5 S cm –1 of Li + ion conductivity at 30 °C and 0.9999 of ultrahigh Li + transference number, therefore enabling symmetric Li–Li cells 1000 h cycling at 60 °C and 300 h at 30 °C. Further compositing with Li 3 BN 2 H 8 by hand milling and low-temperature heat treatment at 150 °C increased the Li + conductivity to 1.73 × 10 –3 S cm –1 at 30 °C . With LLZTO-4LiBH 4 /5 wt % Li 3 BN 2 H 8 as electrolyte, the Li|Li symmetrical cells stably cycled for 1600 h at 30 °C and 0.15 mA cm –2 , with only ∼30 mV of overpotential.…”

Section: Metal Hydride Superionic Conductorsmentioning

confidence: 99%

Metal Hydrides for Advanced Hydrogen/Lithium Storage and Ionic Conduction Applications

Zhang,

Lou,

Gao

et al. 2024

Acc. Mater. Res.

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Metrics & More Article Recommendations * sı Supporting Information CONSPECTUS: The widespread deployment of solar and wind energy requires advanced energy storage technologies to address the intermittent energy output and the loading limit of the current power grid. Materials are of critical importance for energy storage and conversion. Under such circumstances, development of the advanced energy storage materials featuring high capacity, large energy density, and good safety has been taking center stage in the research areas of physics, chemistry, and materials science. As a class of multifunctional materials, metal hydrides with great potential for energy-related applications such as rechargeable batteries, hydrogen energy storage, thermal storage, and ion conduction are one of the core focuses in the current development of advanced energy materials. In this Account, we summarize our research efforts in the manipulation of thermodynamics and kinetics for advanced hydrogen/ lithium storage and ionic conduction applications. By optimization of the compositions, two series of hydrogen storage alloys including La−Mg−Ni−Co−Mn−Al and Ti−Zr−V−Mn−Cr−Ni were developed as the anodes of nickel−metal hydride (Ni/MH) batteries. Among these, La 0.7 Mg 0.3 Ni 2.45 Mn 0.1 Co 0.75 Al 0.2 and Ti 0.8 Zr 0.2 (V 0.533 Mn 0.107 Cr 0.16 Ni 0.2 ) 4 alloys delivered ∼370 and 412 mAh g −1 maximum discharge capacities, respectively, >20% higher than those of the commercial AB 5 -type alloys. Through adding catalysts and fabricating nanostructures, the operation temperatures for hydrogen storage in light-metal hydrides (e.g., MgH 2 , NaAlH 4 , Mg(AlH 4 ) 2 , LiBH 4 , and Li−Mg−N−H) were largely reduced, and the reversibility was remarkably improved. Support-free MgH 2 nanoparticles (4−5 nm) started releasing hydrogen at 30 °C with 6.7 wt % of reversible capacity. This is the first experimental observation of room-temperature hydrogen desorption for light-metal hydrides. Using alkali metals or alkaline earth metals to replace their metal counterparts, a series of metal silicides and sulfides were successfully synthesized at largely lower temperatures and studied for their lithium storage behaviors. This methodology provides a truly original approach for chemical prelithiation of the Si anode. By creating complexes or compositing with solid-state electrolytes, the conductivity of Li + ions by the LiBH 4 -based electrolyte was efficiently increased to ∼10 −3 S cm −1 at 30 °C with exceptional stability, comparable with the commercial organic liquid electrolyte, displaying remarkable practical application potential. For each application of metal hydrides, we start with the basic working mechanism and highlight the relationship between composition, structure, and properties. At the end of the Account, challenges and future development are proposed and discussed. We hope that this Account could help us to understand the current status and offer insight into future energy storage-related applications of metal hydrides.

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Section: Metal Hydride Superionic Conductorsmentioning

confidence: 99%

Metal Hydrides for Advanced Hydrogen/Lithium Storage and Ionic Conduction Applications

Zhang,

Lou,

Gao

et al. 2024

Acc. Mater. Res.

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“…Compared with those stable additives with SSEs, some unstable additives also work and exhibit high performance. Xu et al 128 demonstrated a synergized tricomponent composite SSE Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 –4LiBH 4 / x Li 3 BN 2 H 8 , which was prepared by first ball milling Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 with LiBH 4 and then hand milling with Li 3 BN 2 H 8 . TEM observation displayed a multilayer coating structure.…”

Section: Strategies For Suppressing LI Dendritesmentioning

confidence: 99%

Interfacial engineering of suppressing Li dendrite growth in all solid-state Li-metal batteries

Yang,

Wang,

Guo

et al. 2024

J. Mater. Chem. A

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Solid‐State Electrolytes and Electrode/Electrolyte Interfaces in Rechargeable Batteries

Chai,

He,

Zhou

et al. 2023

ChemSusChem

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Solid‐state batteries (SSBs) are one of the most promising candidates for next‐generation energy storage system due to high safety, high energy density and wide operating temperature range of solid‐state electrolytes (SSEs) they used. Unfortunately, the practical application of SSEs has rarely been successful, which is largely attributed to the low chemical stability and ionic conductivity, ineluctable solid‐solid interface issues including limited ion transport channels, high energy barriers, poor interface contact. A comprehensive understanding on ion transport mechanisms of various SSEs, interactions between fillers and polymer matrixes and role of interface in SSBs are indispensable for rational design and performance optimization of novel electrolytes. The categories, research advances and ion transport mechanism of inorganic glass/ceramic electrolytes, polymer‐based electrolytes and corresponding composite electrolytes are detailly summarized and discussed. Moreover, interface contact and compatibility between electrolyte and cathode/anode are also briefly discussed. Furthermore, the electrochemical characterization methods of SSEs used in different types of SSBs are also introduced. On this basis, the principles and prospects of novel SSEs and interface design are curtly proposed according to development requirements of SSBs. Moreover, the advanced characterizations for real‐time monitoring of interface changes are also brought forward to promote the development of SSBs.

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Synergized Tricomponent All‐Inorganics Solid Electrolyte for Highly Stable Solid‐State Li‐Ion Batteries

Cited by 4 publications

References 70 publications

Metal Hydrides for Advanced Hydrogen/Lithium Storage and Ionic Conduction Applications

Metal Hydrides for Advanced Hydrogen/Lithium Storage and Ionic Conduction Applications

Interfacial engineering of suppressing Li dendrite growth in all solid-state Li-metal batteries

Solid‐State Electrolytes and Electrode/Electrolyte Interfaces in Rechargeable Batteries

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