TEMPO-oxidized bacterial cellulose nanofiber membranes as high-performance separators for lithium-ion batteries

Huang, Chenghao; Ji, Hui Ming; Yang, Yuan; Guo, Bin; Luo, Lei; Meng, Zhenghua; Fan, Lingling; Xu, Jie

doi:10.1016/j.carbpol.2019.115570

Cited by 102 publications

(49 citation statements)

References 58 publications

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“…As is clearly shown, both Young’s modulus and the tensile strength of the TOCF membranes grow larger as the oxidation degree gets higher. The increase in mechanical strength is brought about by more and stronger bonds due to the shorter fibers at a higher oxidation degree 27,30 . Compared to the normal group, membranes processed by different organic solvents show a different effect.…”

Section: Resultsmentioning

confidence: 96%

“…The increase in mechanical strength is brought about by more and stronger bonds due to the shorter fibers at a higher oxidation degree. 27,30 Compared to the normal group, membranes processed by different organic solvents show a different effect. Both Young's modulus and the tensile strength of the CTPMs and NHPMs are larger than those of the nonprocessed group.…”

Section: Mechanical Propertymentioning

confidence: 99%

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Regulating the pore structure of 2,2,6,6‐tetramethylpiperidine‐1‐oxyl (TEMPO) oxidized cellulose membranes: impact of drying method and organic solvent processing

Liu

Xie

et al. 2020

Polymer International

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Cellulose‐based membrane is a satisfactory candidate for the separator of lithium‐ion batteries due to its renewability, abundant pore structure and outstanding thermal–chemical stability. In this study, 2,2,6,6‐tetramethylpiperidine‐1‐oxyl (TEMPO) oxidized cellulose fiber (TOCF) membranes with different oxidation degrees were prepared. Membranes with high oxidation degree are faced with a pore closure issue, resulting in low porosity. In order to improve the pore structure, the TOCF membranes were dried differently through air drying, vacuum drying and freeze drying. Furthermore, air‐dried membranes were processed by three organic solvents – n‐butyl alcohol, carbon tetrachloride and n‐heptane. The physical properties, pore structure characteristics, mechanical properties and the electrochemical performance of the membranes were measured and characterized. From the results, freeze drying is found to provide the highest porosity and mean pore diameter. Unfortunately, Young’s modulus of the freeze‐dried membranes is the smallest as well. However, membranes processed by n‐butyl alcohol have weak tensile properties. Compared to non‐processed membranes, membranes processed by organic solvents present better pore structure and significantly better electrochemical performance. With all properties considered, TOCF membranes processed by carbon tetrachloride or n‐heptane are qualified for serving as battery separators as they possess improved pore structure, enhanced Young’s modulus, considerable tensile strength and improved electrochemical properties. © 2020 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 96%

Section: Mechanical Propertymentioning

confidence: 99%

Regulating the pore structure of 2,2,6,6‐tetramethylpiperidine‐1‐oxyl (TEMPO) oxidized cellulose membranes: impact of drying method and organic solvent processing

Liu

Xie

et al. 2020

Polymer International

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“…Ionic conductivity is an important parameter for the separators of LIBs 38 . Figure 5(a) shows that the bulk resistance of PP, DAC‐1, DAC‐3, and DAC‐5 was approximately 2.8, 0.76, 0.59, and 0.63 Ω, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…37 Ionic conductivity is an important parameter for the separators of LIBs. 38 Figure 5(a) shows that the bulk resistance of PP, DAC-1, DAC-3, and DAC-5 was approximately 2.8, 0.76, 0.59, and 0.63 Ω, respectively. Correspondingly, the ionic conductivity of PP, DAC-1, DAC-3, and DAC-5 was calculated to be 0.44, 1.31, 1.68, and 1.57 mS cm −1 , respectively.…”

Section: Resultsmentioning

confidence: 99%

Cellulose acetate‐based separators prepared by a reversible acetylation process for high‐performance lithium‐ion batteries

Zhang

Shao

et al. 2021

J of Applied Polymer Sci

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Lithium‐ion batteries (LIBs) are one of the most widely used technologies for various applications. However, polyolefin separators can hardly meet the needs of the development of LIBs due to the poor heat shrinkage and bad wettability with the electrolyte. Herein, a cellulose acetate (CA)‐based separator is developed by blending with cellulose nanocrystals (CNCs) using a simple reversible acetylation process. This separator exhibits inherent thermal stability and improved ionic conductivity due to the finger‐like and sponge‐like porous structure. Moreover, the discharge capacity of the separator with a CNC loading of 3% remains at 132.9 mA h g−1 when the rate reverts to 0.2 C and the capacity retention reaches 89.5% after 50 cycles. Therefore, the obtained CA‐based separators can be a competitive candidate for high‐performance LIBs and point the way to sustainable development.

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“…The dried BC particle was treated using a solution mixed with TEMPO at room temperature. The treatment process was similar as reported by a previous study with a little modification [29]. The dried BC powder (5 g) was suspended into a solution from distilled water (300 ml), TEMPO (0.1 g), NaBr (0.3 gr), and NaClO (30 ml).…”

Section: 1mentioning

confidence: 99%

Stability, Viscosity, and Tribology Properties of Polyol Ester Oil-Based Biolubricant Filled with TEMPO-Oxidized Bacterial Cellulose Nanofiber

Rahmadiawan

Abral

Nasruddin

et al. 2021

International Journal of Polymer Science

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This research is aimed at studying the stability and tribology properties of the polyol ester oil- (POE-) based biolubricant mixed with various filler loadings from microparticle of TEMPO-oxidized bacterial cellulose (NDCt) as an additive and sorbitan monostearate (Span 60) as a surfactant. Morphology, rheology, and tribology tests were conducted. The addition of NDCt and Span 60 to pure POE as a base fluid showed elevated viscosity, lower value of coefficient friction (COF), and a remarkable decrease in the wear rate (WR). The presence of 0.6 wt% NDCt and 1.8 wt% Span 60 in POE (N2S4) decreased the COF value by 79% in comparison to POE. At room temperature, this N2S4 biolubricant sample showed a higher thermal conductivity by 4% and lower WR value by 49% compared to POE. This study introduced the preparation of the ecofriendly biolubricant filled with NDCt improving the tribology properties remarkably.

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TEMPO-oxidized bacterial cellulose nanofiber membranes as high-performance separators for lithium-ion batteries

Cited by 102 publications

References 58 publications

Regulating the pore structure of 2,2,6,6‐tetramethylpiperidine‐1‐oxyl (TEMPO) oxidized cellulose membranes: impact of drying method and organic solvent processing

Regulating the pore structure of 2,2,6,6‐tetramethylpiperidine‐1‐oxyl (TEMPO) oxidized cellulose membranes: impact of drying method and organic solvent processing

Cellulose acetate‐based separators prepared by a reversible acetylation process for high‐performance lithium‐ion batteries

Stability, Viscosity, and Tribology Properties of Polyol Ester Oil-Based Biolubricant Filled with TEMPO-Oxidized Bacterial Cellulose Nanofiber

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