Cross-linked cellulose/carboxylated polyimide nanofiber separator for lithium-ion battery application

Deng, Jianhui; Cao, Danping; Yang, Xiaoqing; Zhang, Guoqing

doi:10.1016/j.cej.2021.133934

Cited by 109 publications

(51 citation statements)

References 48 publications

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“…To increase the strength of cellulose-based gel electrolytes, a novel environmentally friendly hydrogen-bonded (H-bonded) cross-linked cellulose/carboxylated polyimide (Cellulose/PI-COOH) nanofiber composite gel electrolyte matrix was prepared by electrostatic spinning, imidization and alkali hydrolysis. [20] The three-dimensional interconnected structure generated by the H-bonding cross-linking facilitates the improvement of the mechanical properties of the composite gel electrolyte matrix (34.2 MPa tensile strength, 5 times higher than that of the pristine PI (6.8 MPa)), and the gel electrolyte shows high ionic conductivity (0.51 mS cm À 1 ) and a wide electrochemical stability window (~5.1 V). Therefore, the Hbonded cross-linked cellulose/PI-COOH gel electrolyte exhibits better cycling and multiplicative performance in LiFePO 4 /Li and LiCoO 2 /Li cells compared to corresponding cells using polypropylene and PI diaphragms.…”

Section: Combined With Liquid Electrolytesmentioning

confidence: 99%

Cellulose‐Based Electrolytes for Advanced Lithium‐Ion Batteries: Recent Advances and Future Perspectives

Zhang

Gao

Jin³

et al. 2022

ChemNanoMat

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In the coming decades, it is urgent to find a way to power the future while keeping a clean environment and strong economic growth. Thus, it is expected to transition from using fossil fuels to renewable energy. Materials based on cellulose are abundant, low cost, sustainable, possess a high surface area, good thermal stability, biocompatibility, mechanical flexibility, and inherit unique layered fiber structure from cellulose, which can act as an ideal electrolyte matrix for sustainable and high energy density lithium‐ion batteries (LIBs). In this review, we focus on energy storage application of different forms of cellulose‐based electrolytes in LIBs. Specifically, we summarize the recent advances of cellulose‐based gel and solid‐state electrolytes, focusing on the gel electrolytes based on different types of plasticizers (cellulose‐based electrolytes for flexible LIBs also are introduced). Finally, several perspectives related to the cellulose‐based‐electrolytes for LIBs are proposed based on recent progress and our own evaluation.

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Section: Combined With Liquid Electrolytesmentioning

confidence: 99%

Cellulose‐Based Electrolytes for Advanced Lithium‐Ion Batteries: Recent Advances and Future Perspectives

Zhang

Gao

Jin³

et al. 2022

ChemNanoMat

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“…Polyimide (PI), as a kind of organic polymer with imide ring in the main chain, has attracted much attention from academia and industry on account of its superior chemical resistance, high thermal stability, good mechanical strength, and inherent noninflammability. , Especially, in conjunction with electrospinning technique, various PI membranes have been used as safety separators for high-temperature batteries (e.g., high-performance lithium-ion batteries or high-performance LSBs). , However, it is worth noting that the currently reported PI separators have a large pore structure, which can boost the wettability of the electrolytes but may have adverse effects on alleviating the shuttle effect of LiPSs in LSBs, , and is not conducive to their direct use as LSBs separators. Considering that the rich nitrogen- and oxygen-containing functional groups of PI help capture polysulfide, , we envision that the safety and electrochemical performance of LSBs may be significantly improved if the microstructures of PI are regulated into two-dimensional (2D) lamellar structures and stacked into compact coatings with appropriate pore structures for modifying the PP separator.…”

Section: Introductionmentioning

confidence: 99%

Toward Safe and High-Performance Lithium–Sulfur Batteries via Polyimide Nanosheets-Modified Separator

Zhu

Zhang

Jin

et al. 2023

ACS Sustainable Chem. Eng.

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Lithium−sulfur batteries (LSBs) have broad application prospects in high density energy storage. Nevertheless, LSBs present serious safety concerns and rapid capacity decay due to the flammability and contractility of commercial separators at high temperatures and lithium polysulfide (LiPSs) dissolution. In view of this, a multifunctional modified separator is developed by combining a commercial polypropylene (PP) separator with a polyimide (PI)-Super P functional coating and a rigid nonflammable PI matrix. This PI/PP/PI-Super P separator provides multiple advantages: (i) strong physical blocking and chemical trapping/conversion ability for LiPSs, (ii) high flame-retardancy and dimensional stability, and (iii) superior electrolyte wettability and high efficiency lithium dendritic growth inhibition. As a result, the LSBs assembled with PI/PP/PI-Super P separators and pure sulfur cathodes exhibit an ultrahigh discharge specific capacity of 1611.8 mAh/g and excellent cycling performance (the average capacity attenuation within 100 cycles at 1 C is 0.469%) at 80 °C, which exceed the advanced results reported previously. More importantly, even when sulfur and organic electrolyte are adsorbed on PI/ PP/PI-Super P, the modified separator still shows good flame retardancy. Additionally, this modified separator is also suitable for LSBs with high sulfur loading. This work offers an innovative design concept for safe and high-performance LSBs.

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“…Carboxymethyl Cellulose (CMC) is the most useful water-soluble cellulose derivative preserved as sodium carboxymethyl cellulose. From the many industrial applications of CMC we can list: water-retaining agent, chelating agent, thickening agent, sizing agent, emulsifier, film-forming material and flocculating agent [6][7][8][9][10][11][12][13]. Like the virgin cellulose polymer, like the derivative Carboxymethyl cellulose is nontoxic, renewable, cheap, hydrophilic and biodegradable.…”

Section: Introductionmentioning

confidence: 99%

Development of hydrogel based on Carboxymethyl cellulose/poly(4-vinylpyridine) for controlled releasing of fertilizers

2022

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A novel Carboxymethyl cellulose (CMC) and poly (4-vinylpyridine) (P4VP) hydrogel system is synthesized with different ratios, in the presence of cross-linker N, N,- methylene bis-acrylamide (MBA). The hydrogel is characterized via FTIR spectroscopy, thermal gravimetric analysis (TGA), X-ray diffraction (XRD), and scanning electron microscope (SEM). The FTIR results showed a strong interaction between both CMC, P4VP and the loaded fertilizer. The water uptake of the hydrogel was evaluated by swelling tests under variations in pH, biodegradability was investigated in soil to simulate real-world conditions. To determine the best release behavior of urea and calcium nitrate from the hydrogel, fertilizers were loaded with different ratios onto the hydrogel during its formation. Fertilizers release was followed by Atomic absorption spectroscopy to study the release of calcium nitrate and urea. Release kinetic parameters were obtained based on different mathematical models as Zero order, First order, Korsmeyer–Peppas and Higuchi models. The suitable proportionality between the mathematical models used and the fertilizers release was determined based on the correlation coefficients (R2). According to Zero order model urea release showed independent concentration. Based on Korsmeyer-Pappas and Higuchi models with high n value and R2 equals to 0.97. Compared to urea, Ca2+, Zero order and Higuchi have been ignored due to their poor correlation coefficients values as proportion with Ca2+ fertilizer release.

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Cross-linked cellulose/carboxylated polyimide nanofiber separator for lithium-ion battery application

Cited by 109 publications

References 48 publications

Cellulose‐Based Electrolytes for Advanced Lithium‐Ion Batteries: Recent Advances and Future Perspectives

Cellulose‐Based Electrolytes for Advanced Lithium‐Ion Batteries: Recent Advances and Future Perspectives

Toward Safe and High-Performance Lithium–Sulfur Batteries via Polyimide Nanosheets-Modified Separator

Development of hydrogel based on Carboxymethyl cellulose/poly(4-vinylpyridine) for controlled releasing of fertilizers

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