Enhanced Electrochemical Performance of Poly(ethylene oxide) Composite Polymer Electrolyte via Incorporating Lithiated Covalent Organic Framework

Yao, Yuan; Cao, Yuliang; Li, Gang; Liu, Cheng; Jiang, Zhongyi; Pan, Fusheng; Sun, Jie

doi:10.1007/s12209-021-00300-z

Cited by 17 publications

(12 citation statements)

References 17 publications

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“…3c, S18, and S19). 22 DMA@LiTFSI-mediated COF at r.t., 36 Polyethylene oxide@TpPa-SO3Li at 60 °C, 37 Li-CON-TFSI COF at 30 °C, 38 PVDF/H-COF-1@10 at r.t., 39 PEG-Li + @EB-COF-ClO4 at 30 °C, 40 Im-COF-TFSI@Li at 30 °C, 41 dCOF-ImTFSI-60@Li at 30 °C, 42 LiCON-3 at r.t., 23 Zwitt-COF at r.t., 43 COF-MCMC at 30 °C. 44 j-l, 7 Li solid-state magic-angle-spinning (MAS) nuclear magnetic resonance (NMR) spectrum comparison of LiTFSI and p(BVIm-TFSI)/LiTFSI (j), TpPa-SO3Li/p(BVIm-TFSI) and TpPa-SO3Li/LiTFSI (k), and DMTHA-Si-Li/p(BVIm-TFSI) and DMTHA-Si-Li/p(BVIm-TFSI)/LiTFSI (l).…”

Section: Xps Analysis Of Dmtha-si-li Icofs Showed the Formation Of Co...mentioning

confidence: 99%

High-Performance All-Solid-State Lithium Metal Batteries Enabled by Ionic Covalent Organic Framework Composites

Huang,

Cheng,

Zhang

et al. 2024

Preprint

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Ionic covalent organic frameworks (iCOFs) are crystalline materials with stable porous structures. They hold great potential for ion transport, particularly as solid-state electrolytes (SSEs) for all-solid-state Lithium metal batteries (ASSLMBs). However, achieving an ionic conductivity of over 10−3 S cm−1 at room temperature using pure-iCOF-based SSEs, even adding additives such as lithium salts, is challenging as the voids work as strong resistances. Thus, highly conductive iCOFs typically require quasi-solid-state configurations with organic solvents or plasticizers. In this study, we prepared composites comprising iCOFs and poly(ionic liquid) (PIL) to make all-solid-state iCOFs electrolytes with an exceptional ionic conductivity up to 1.50 × 10−3 S cm−1 and a high Li+ transference number of > 0.80 at room temperature. Combined experimental and computational studies showed that the co-coordination and competitive coordination mechanism established between the PIL, lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) and iCOFs enabled rapid Li+ transport while restricting TFSI− movement. ASSLMB cells, made of composite SSEs and LiFePO4 composite cathode, demonstrated an initial discharge capacity of 141.5 mAh g−1 at 1 C and r.t., with an impressive capacity retention of 87% up to 800 cycles. Overall, this work presents a breakthrough approach for developing advanced SSEs for next-generation high-energy-density ASSLMBs.

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Section: Xps Analysis Of Dmtha-si-li Icofs Showed the Formation Of Co...mentioning

confidence: 99%

High-Performance All-Solid-State Lithium Metal Batteries Enabled by Ionic Covalent Organic Framework Composites

Huang,

Cheng,

Zhang

et al. 2024

Preprint

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Section: Xps Analysis Of Dmtha-si-li Icofs Showed the Formation Of Co...mentioning

confidence: 99%

High‐Performance All‐Solid‐State Lithium Metal Batteries Enabled by Ionic Covalent Organic Framework Composites

Huang,

Cheng,

Zhang

et al. 2024

Advanced Energy Materials

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Ionic covalent organic frameworks (iCOFs) are crystalline materials with stable porous structures. They hold great potential for ion transport, particularly as solid‐state electrolytes (SSEs) for all‐solid‐state lithium metal batteries (ASSLMBs). However, achieving an ionic conductivity of over 10−3 S cm−1 at room temperature using pure‐iCOF‐based SSEs, even adding additives such as lithium salts, is challenging as the voids work as strong resistances. Thus, highly conductive iCOFs typically require quasi‐solid‐state configurations with organic solvents or plasticizers. In this study, composites comprising iCOFs and poly(ionic liquid) (PIL) are prepared to make all‐solid‐state iCOFs electrolytes with an exceptional ionic conductivity up to 1.50 × 10−3 S cm−1 and a high Li+ transference number of > 0.80 at room temperature. Combined experimental and computational studies show that the co‐coordination and competitive coordination mechanism established between the PIL, lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), and iCOFs enabled rapid Li+ transport while restricting TFSI− movement. ASSLMB cells, made of composite SSEs and LiFePO4 composite cathode, demonstrate an initial discharge capacity of 141.5 mAh g−1 at 1C and r.t., with an impressive capacity retention of 87% up to 800 cycles. Overall, this work presents a breakthrough approach for developing advanced SSEs for next‐generation high‐energy‐density ASSLMBs.

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“…Sun and co‐workers introduced the lithiated covalent organic framework (named TpPaSO 3 Li) into PEO to produce the modified polymer electrolytes. [ 248 ] The lithium‐ion transfer along the PEO chain or across the nanochannels of TpPaSO 3 Li resulted in a high ionic conductivity of 3.01 × 10 −4 S cm −1 at 60 °C. In addition, COFs can also serve as functional fillers to enhance the lithium‐ion transference number of polymer‐based electrolytes.…”

Section: Applications Of Ion‐conducting Cof In Rechargeable Batteriesmentioning

confidence: 99%

Covalent Organic Framework for Rechargeable Batteries: Mechanisms and Properties of Ionic Conduction

Cao

Wang

et al. 2022

Advanced Energy Materials

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115

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The ionic conduction plays an important role in the charging/discharging kinetics in rechargeable batteries, mainly including the steps of diffusion in the electrodes, transport in the electrolytes, and permeation through the electrode/electrolyte interphases. [8][9][10] Generally, the ionic transport is a critical control step in the electrochemical reactions, because it is much slower kinetics than electron transport. [8,11] Thus, regulating the ion-transport behavior is very vital to achieve fast-charging secondary batteries. [6,12] Mechanism exploration and novel material design become two important strategies to tackle the sluggish ionconduction kinetics. [13][14][15][16][17] In the secondary battery, the environment of ionic conduction can be roughly divided into liquid electrolytes and solid conductors. The ionic diffusion in the liquid electrolytes can be very fast. However, the flammability of organic solvents and the instability of salts (such as LiPF 6 ) at elevated temperature limit its commercial application. [18,19] The solid conductor is a safer choice to replace the current liquid electrolyte, but still suffers a serious impediment of low ionic conductivity. [20,21] Recently, covalent organic frameworks (COFs), an emerging type of crystalline porous materials, are considered to be a potential solid conductor. [22,23] Depending on the topological establishment of building blocks, COFs are classified into 2D COFs and 3D COFs. Unless otherwise noted, the COFs in this review specifically refer to 2D COFs. 2D COFs typically crystallize as stacked sheets through the π-π interaction between adjacent monolayers, meanwhile the organic units are connected by the covalent bond to form reticular framework with periodic channel structure. [24][25][26][27] Based on the nature of synthetic reactions, COFs have been synthesized with boroxine, boronate ester, borosilicate, triazine, imine, hydrazone, borazine, imide, spiroborate, amide linkages, etc. [24,25] In addition, based on the symmetry of the monomers, COFs can be designed in various topologies, such as tetragonal, hexagonal, rhombic, and trigonal. [24,25] Over the recent decades, a variety of synthetic approaches have been developed to prepare COFs, such as solvothermal synthesis, microwave synthesis, ionothermal synthesis, mechanochemical synthesis, and interfacial synthesis. [24,25] Among them, the solvothermal synthesis under a sealed vessel with a suitable temperature can produce highly crystalline COFs, but this method always needs a long Ionic conduction plays a critical role in the process of electrode reactions and the charge transfer kinetics in a rechargeable battery. Covalent organic frameworks (COFs) have emerged as an exciting new class of ionic conductors, and have made great progress in terms of their application in rechargeable batteries. The unique features of COFs, such as well-defined directional channels, functional diversity, and structural robustness, endow COF-based conductors with a low ionic diffusion energy barrier and excellent t...

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Enhanced Electrochemical Performance of Poly(ethylene oxide) Composite Polymer Electrolyte via Incorporating Lithiated Covalent Organic Framework

Cited by 17 publications

References 17 publications

High-Performance All-Solid-State Lithium Metal Batteries Enabled by Ionic Covalent Organic Framework Composites

High-Performance All-Solid-State Lithium Metal Batteries Enabled by Ionic Covalent Organic Framework Composites

High‐Performance All‐Solid‐State Lithium Metal Batteries Enabled by Ionic Covalent Organic Framework Composites

Covalent Organic Framework for Rechargeable Batteries: Mechanisms and Properties of Ionic Conduction

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