Covalently linked metal–organic framework (MOF)-polymer all-solid-state electrolyte membranes for room temperature high performance lithium batteries

Wang, Zhinan; Wang, Shi; Wang, Ailian; Liu, Xu; Chen, Jie; Zeng, Qinghui; Zhang, Lei; Liu, Wei; Zhang, Liaoyun

doi:10.1039/c8ta05642k

Cited by 157 publications

(112 citation statements)

References 45 publications

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“…This shows an excellent capacity retention capability and good cycle stability (Figure 10B). Recently, Wang Z. et al (2018) synthesized a new chemically linked composite MOF-polymer electrolyte. The film was prepared by photopolymerization with post-synthetic modification of the MOF (M-UiO-66-NH 2 ), poly(ethylene glycol) diacrylate and LITFSI (Figure 11).…”

Section: Solid Polymer Electrolytes With Mofsmentioning

confidence: 99%

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Review on Polymer-Based Composite Electrolytes for Lithium Batteries

et al. 2019

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Lithium-ion batteries have dominated the high performance and mobile market for last decade. Despite their dominance in many areas, the development of current commercial lithium-ion batteries is experiencing bottlenecks, limited by safety risks such as: leakage, burning, and even explosions due to the low-boiling point organic liquid electrolytes. Solid electrolyte is a promising option to solve or mitigate those issues. Among all solid electrolytes, polymer based solid electrolytes have the advantages of low flammability, good flexibility, excellent thermal stability, and high safety. Numerous researchers have focused on implementing solid polymer based Li-ion batteries with high performance. Nevertheless, low Li-ion conductivity and poor mechanical properties are still the main challenges in its commercial development. In order to tackle the issues and improve the overall performance, composites with external particles are widely investigated to form a polymer-based composite electrolyte. In light of their work, this review discusses the progress of polymer-based composite lithium ion's solid electrolytes. In particular, the structures, ionic conductivities, electrochemical/chemical stabilities, and fabrications of solid polymer electrolytes are introduced in the text and summarized at the end. On the basis of previous work, the perspectives of solid polymer electrolytes are provided especially toward the future of lithium ion batteries.

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Section: Solid Polymer Electrolytes With Mofsmentioning

confidence: 99%

“…Synthetic route of the hybrid covalently linked MOF-PEGDA-based all-solid-state electrolyte. [Reproduction with permission from Wang Z. et al (2018). Copyright© 2018, The Royal Society of Chemistry].…”

Section: Solid Polymer Electrolytes With Mofsmentioning

confidence: 99%

Review on Polymer-Based Composite Electrolytes for Lithium Batteries

et al. 2019

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“…MOFs have been recognized as effective polymer electrolyte fillers or electrolyte hosts in LMBs to improve ionic conductivity and constrain ion transport paths due to their large specific surface area, open pore structure and abundant Lewis acid sites on the surface. [40][41][42][43][44] In such unique asymmetric SPE structure, the MOF layer (≈5 µm) with high porosity acts as a "securer" when contacting with Li metal anode (the MOF modification side), which not only possesses high mechanical strength to inhibit the growth of lithium dendrites, but also regulates uniform Li + flux during the charging/discharging process. Meanwhile, on the other side facing with cathode, SPE directly contacts with active materials, which greatly reduces the interface resistance and promotes the rapid transmission of Li + .…”

Section: Introductionmentioning

confidence: 99%

Asymmetric Polymer Electrolyte Constructed by Metal–Organic Framework for Solid‐State, Dendrite‐Free Lithium Metal Battery

Wang

Fan

2020

Adv Funct Materials

144

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Solid-state polymer electrolytes (SPEs) with flexibility, easy processability, and low cost have been regarded as promising alternatives for conventional liquid electrolytes in next-generation high-safety lithium metal batteries. However, SPEs generally suffer poor strength to block Li dendrite growth during the charge/discharge process, which severely limits their wide practical applications. Here, a rational design of 3D cross-linked network asymmetric SPE modified with a metal-organic framework (MOF) layer on one side is proposed and prepared through an in-situ polymerization process. In such unique asymmetric SPEs, the nanoscale MOF layer acts as a shield that effectively suppresses the growth of Li dendrites and regulates the uniform Li + transport, and the polymer electrolyte can be scattered in the whole cell to endow the smooth transmission of Li +. As a result, the asymmetric SPE exhibits high ionic conductivity, wide electrochemical window, high thermal stability and safety, which endows the Li/Li symmetrical cell with outstanding cyclic stability (operate well over 800 h at a current density of 0.1 mA cm −2 for the capacity of 0.1 mAh cm −2).

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“…Afterward, Zhinan Wang et al. reported an electrolyte in which the MOF(UiO‐66‐NH 2 ) is covalently linked with the polymer (PEGDA); the electrolyte demonstrated high ion conductivity, superior interfacial compatibility and excellent high/low temperature cell performance due to its favorable spatial structure . Arul Manuel Stephan et al.…”

Section: Introductionmentioning

confidence: 99%

“…[33] Afterward, Zhinan Wang et al reported an electrolyte in which the MOF(UiO-66-NH 2 ) is covalently linked with the polymer (PEGDA); the electrolyte demonstrated high ion conductivity, superior interfacial compatibility and excellent high/low temperature cell performance due to its favorable spatial structure. [34] Arul Manuel Stephan et al reported that the incorporation of Al(BTC) into the PEO/LiTFSI would greatly improve the ionic conductivity and the cell performance; [35] the SPE with Al-TPA-MOF could be successfully used in LiÀ S and Li metal cells; [36] importantly, they found the MOF-added electrolytes are more compatible with lithium metal anode, owing to the scavenging effect of porous inert fillers. [37] Such pioneering works proved that MOF-based fillers could not only show the alike properties as the inorganic passive fillers, but also the local interaction of organic functional groups of MOFs with the polymer might benefit the performance of the solid electrolyte.…”

Section: Introductionmentioning

confidence: 99%

Metal Organic Framework Nanorod Doped Solid Polymer Electrolyte with Decreased Crystallinity for High‐Performance All‐Solid‐State Lithium Batteries

et al. 2020

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Poly(ethylene oxide) (PEO), an important solid polymer electrolyte (SPE) for solid‐state lithium batteries, suffers from low ionic conductivity and poor electrochemical stability; many inorganic solid compounds have been explored as fillers to address these issues. Herein, we report that Al‐metal organic framework (MOF) nanorods could work as efficient solid fillers to boost the electrochemical performance of PEO‐based SPEs. The addition of MOF nanorods was found to inhibit the crystallization of PEO and effectively weaken the interactions among the PEO chains, resulting in evidently enhanced ionic conductivity and improved electrochemical stability; moreover, when embedded in PEO, such Al‐MOF nanorods are microporous and micrometer long, which are expected to favor the transportation of Li+ over the significantly more bulky anions TFSI−. Compared with pure PEO SPE, our optimal sample PEO‐MOF5% SPE has higher ion conductivity (2.09×10−5 S/cm at 30 °C and 7.11×10−4 S/cm 60 °C), a larger lithium‐ion transference number (0.46) and an enlarged electrochemical window (4.7 V versus Li/Li+). Accordingly, the cell of LiFePO4/PEO‐MOF5%/Li shows excellent cycle performance and rate performance. Our work proved the advantages of MOF particles as solid fillers towards high‐performance PEO‐based SPE, and we also put emphasis on the shape effect of the solid fillers on the lithium‐ion transference number and, thus, the electrochemical performance of the resulting SPE.

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Covalently linked metal–organic framework (MOF)-polymer all-solid-state electrolyte membranes for room temperature high performance lithium batteries

Abstract: A MOF covalently linked by polymer chains is prepared and used as an all-solid-state polymer electrolyte for LIBs, which shows superior performance.

Cited by 157 publications

References 45 publications

Review on Polymer-Based Composite Electrolytes for Lithium Batteries

Review on Polymer-Based Composite Electrolytes for Lithium Batteries

Asymmetric Polymer Electrolyte Constructed by Metal–Organic Framework for Solid‐State, Dendrite‐Free Lithium Metal Battery

Metal Organic Framework Nanorod Doped Solid Polymer Electrolyte with Decreased Crystallinity for High‐Performance All‐Solid‐State Lithium Batteries

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