Fast Li+ transport and superior interfacial chemistry within composite polymer electrolyte enables ultra-long cycling solid-state Li-metal batteries

Zhang, Xueliang; Shen, Fang-Ying; Long, Xin; Zheng, Siyan; Ruan, Zhiqin; Cai, Yue‐Peng; Hong, Xu‐Jia; Zheng, Qifeng

doi:10.1016/j.ensm.2022.07.045

Cited by 36 publications

(27 citation statements)

References 31 publications

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“…The overpotentials of the lithium symmetric cells approached 78 mV, 89 mV, 187 mV, and 230 mV at 35 °C with incremental current densities from 0.1 to 0.4 mA cm −2 (areal ca-pacity from 0.1 to 0.4 mA h cm −2 ), which were comparable to performances of reported MOF-based QSEs. [31,47,49,50] The climbing overpotentials were attributed to inferior compatibility of implemented carbonate-based liquid electrolytes with lithium. [51,52] Remarkably, the lithium symmetric cells sustained long-term cycling over 800 h without short circuits at 0.2 mA cm −2 (areal capacity of 0.2 mA h cm −2 ).…”

Section: Resultsmentioning

confidence: 99%

Extraordinary Ionic Conductivity Excited by Hierarchical Ion‐Transport Pathways in MOF‐Based Quasi‐Solid Electrolytes

et al. 2023

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Liquid-electrolyte-laden metal-organic frameworks (LE-laden MOFs) are promising quasi-solid electrolytes (QSEs) for metal-anode batteries. To achieve a high ionic conductivity, considerable efforts have been devoted to designing continuous and compact LE-laden MOF layers. Surprisingly, in this work, an extraordinarily high ionic conductivity (1.02 mS cm −1 ) is observed in an LE-laden MOF electrolyte with abundant interstices and cracks. Herein, various macroscopic and mesoscopic pore structures of Li-LE-laden HKUST-1 QSEs are prepared via morphology control and different cold-pressing procedures. Thereinto, Li-LE-laden cuboctahedron HKUST-1 prepared under 150 MPa cold-pressing with an optimal hierarchical pore structure (Li-Cuboct-H) exhibits the highest ambient ionic conductivity (1.02 mS cm −1 ). It is found that interstices and cracks in electrolytes construct a set of interconnected Li-LE networks with innate MOF channels and facilitate Li+ transfer in the hybrid ion-transport pathways. The Li/LiFePO 4 cells based on Li-Cuboct-H deliver a splendid capacity retention of 93% over 210 cycles at 1 C. Meanwhile, the high ionic conductivities (higher than 10 −4 S cm −1 ) can be achieved in different ion conductor systems (Na, Mg, and Al) under the same guideline. This work redefines the understanding of ion transport in MOF-based QSEs and breaks the bottleneck of MOF-based QSEs.

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Section: Resultsmentioning

confidence: 99%

Extraordinary Ionic Conductivity Excited by Hierarchical Ion‐Transport Pathways in MOF‐Based Quasi‐Solid Electrolytes

et al. 2023

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Section: Electrolytes In Organic Batteriesmentioning

confidence: 99%

“…3D frameworks such as electrospun LLTO, LLZO, LATP@PAN, and metal organic framework (MOF)@PAN nanofiber membranes not only exhibit good mechanical integrity, high thermal stability, and superior flame resistance, but also provide continuous ion transport pathways to promote rapid and uniform metal-cation transport. Recently, Zhang et al designed a PEO-based composite electrolyte with a 3D ion-conducting MOF-based network. As shown in Figure d, the in situ growth of MOFs on PAN fibers provides fast and continuous pathways for Li + transport, and the IL confined in the pores of MOFs significantly reduces the interfacial resistance between MOFs and PEO, affording fast Li + migration kinetics and excellent interfacial compatibility.…”

Section: Electrolytes In Organic Batteriesmentioning

confidence: 99%

Electrolytes in Organic Batteries

Hicks

Chen

et al. 2023

Chem. Rev.

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Organic batteries using redox-active polymers and small organic compounds have become promising candidates for next-generation energy storage devices due to the abundance, environmental benignity, and diverse nature of organic resources. To date, tremendous research efforts have been devoted to developing advanced organic electrode materials and understanding the material structure–performance correlation in organic batteries. In contrast, less attention was paid to the correlation between electrolyte structure and battery performance, despite the critical roles of electrolytes for the dissolution of organic electrode materials, the formation of the electrode–electrolyte interphase, and the solvation/desolvation of charge carriers. In this review, we discuss the prospects and challenges of organic batteries with an emphasis on electrolytes. The differences between organic and inorganic batteries in terms of electrolyte property requirements and charge storage mechanisms are elucidated. To provide a comprehensive and thorough overview of the electrolyte development in organic batteries, the electrolytes are divided into four categories including organic liquid electrolytes, aqueous electrolytes, inorganic solid electrolytes, and polymer-based electrolytes, to introduce different components, concentrations, additives, and applications in various organic batteries with different charge carriers, interphases, and separators. The perspectives and outlook for the future development of advanced electrolytes are also discussed to provide a guidance for the electrolyte design and optimization in organic batteries. We believe that this review will stimulate an in-depth study of electrolytes and accelerate the commercialization of organic batteries.

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“…In this work, we proposed an anion-trapping 3D fiber network enhanced polymer electrolyte (ATFPE) to realize highperformance ASSMBs. In ATFPE, typical MOF (ZIF-67) with rich coordinated unsaturated cation sites is selected as the functional filler, [38,39] which is densely and orderly arranged on a 3D polyacrylonitrile fiber framework to provide continuous Na + transport channels and synchronously capture anions in PEO-based composite electrolyte. Compared with pure PEO-based polymer electrolyte without MOF nanofiber, this ATFPE displays significantly improved ionic conductivity (1.10×10 −4 S cm −1 , 60 o C) and increased Na + transference number (0.63) owing to the specific and strong trapping effect of MOF-based 3D fiber to anions.…”

Section: Introductionmentioning

confidence: 99%

Achieving Ultra‐Stable All‐Solid‐State Sodium Metal Batteries with Anion‐Trapping 3D Fiber Network Enhanced Polymer Electrolyte

Guo

Feng

Zhao

et al. 2023

Small

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All‐solid‐state sodium metal batteries paired with solid polymer electrolytes (SPEs) are considered a promising candidate for high energy‐density, low‐cost, and high‐safety energy storage systems. However, the low ionic conductivity and inferior interfacial stability with Na metal anode of SPEs severely hinder their practical applications. Herein, an anion‐trapping 3D fiber network enhanced polymer electrolyte (ATFPE) is developed by infusing poly(ethylene oxide) matrix into an electrostatic spun fiber framework loading with an orderly arranged metal‐organic framework (MOF). The 3D continuous channel provides a fast Na+ transport path leading to high ionic conductivity, and simultaneously the rich coordinated unsaturated cation sites exposed on MOF can effectively trap anions, thus regulating Na+ concentration distribution for constructing stable electrolyte/Na anode interface. Based on such advantages, the ATFPE exhibits high ionic conductivity and considerable Na+ transference number, as well as enhanced interfacial stability. Consequently, Na/Na symmetric cells using this ATFPE possess cyclability over 600 h at 0.1 mA cm−2 without discernable Na dendrites. Cooperated with Na3V2(PO4)3 cathode, the all‐solid‐state sodium metal batteries (ASSMBs) demonstrate significantly improved rate and cycle performances, delivering a high discharge capacity of 117.5 mAh g−1 under 0.1 C and rendering high capacity retention of 78.2% after 1000 cycles even at 1 C.

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Fast Li+ transport and superior interfacial chemistry within composite polymer electrolyte enables ultra-long cycling solid-state Li-metal batteries

Cited by 36 publications

References 31 publications

Extraordinary Ionic Conductivity Excited by Hierarchical Ion‐Transport Pathways in MOF‐Based Quasi‐Solid Electrolytes

Extraordinary Ionic Conductivity Excited by Hierarchical Ion‐Transport Pathways in MOF‐Based Quasi‐Solid Electrolytes

Electrolytes in Organic Batteries

Achieving Ultra‐Stable All‐Solid‐State Sodium Metal Batteries with Anion‐Trapping 3D Fiber Network Enhanced Polymer Electrolyte

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