Novel aramid nanofiber-coated polypropylene separators for lithium ion batteries

Hu, Sien; Lin, Shudong; Tu, Yuanyuan; Hu, Jiwen; Wu, Yan; Liu, Guojun; Li, Fēi; Yu, Fameng; Jiang, Tingting

doi:10.1039/c5ta08694a

Cited by 145 publications

(84 citation statements)

References 58 publications

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“…Besides its use as a coating agent, dopamine can be also used as a coating mediator for the functionalization of polyolefin separators. Dopamine‐mediated coating of aramid NFs was performed on a traditional PP separator to enhance the thermal stability . The PD layer functions as the adhesive layer for the PP and aramid NFs.…”

Section: Advanced Separators For Li‐ion Batteriesmentioning

confidence: 94%

“…Dopamine-mediated coating of aramid NFs was performed on atraditional PP separator to enhance the thermals tability. [16] The PD layer functions as the adhesive layer for the PP and aramid NFs. The introductiono ft he PD layer helps to decrease the interfacialr esistance between the PP substrate and the aramid NFs.…”

Section: Advanceds Eparators For Li-ion Batteriesmentioning

confidence: 99%

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Advanced Separators for Lithium‐Ion and Lithium–Sulfur Batteries: A Review of Recent Progress

et al. 2016

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Li-ion and Li-S batteries find enormous applications in different fields, such as electric vehicles and portable electronics. A separator is an indispensable part of the battery design, which functions as a physical barrier for the electrode as well as an electrolyte reservoir for ionic transport. The properties of the separators directly influence the performance of the batteries. Traditional polyolefin separators showed low thermal stability, poor wettability toward the electrolyte, and inadequate barrier properties to polysulfides. To improve the performance and durability of Li-ion and Li-S batteries, development of advanced separators is required. In this review, we summarize recent progress on the fabrication and application of novel separators, including the functionalized polyolefin separator, polymeric separator, and ceramic separator, for Li-ion and Li-S batteries. The characteristics, advantages, and limitations of these separators are discussed. A brief outlook for the future directions of the research in the separators is also provided.

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Section: Advanced Separators For Li‐ion Batteriesmentioning

confidence: 94%

Section: Advanceds Eparators For Li-ion Batteriesmentioning

confidence: 99%

Advanced Separators for Lithium‐Ion and Lithium–Sulfur Batteries: A Review of Recent Progress

et al. 2016

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“…Two challenges of safety and limited cell performance of lithium‐ion batteries in use should be considered for their further improvement . The battery's separator dimensional stability is an important factor affecting its safety as promoting the separator dimensional stability enhances its assembled battery safety . Furthermore, as the battery is in use, its separator must easily pass Li + cations through itself.…”

Section: Introductionmentioning

confidence: 99%

Preparation of 4A zeolite coated polypropylene membrane for lithium‐ion batteries separator

Shekarian

Nasr

Mohammadi

et al. 2019

J of Applied Polymer Sci

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This study aims to improve wettability and thermal resistance of lithium‐ion batteries separators. For this purpose, a commercial polypropylene (PP) separator was coated by 4A zeolite using poly(vinylidene fluoride) as binder and effects of the separators' zeolite content was investigated. All the coated separators showed lower contact angles, higher electrolyte uptakes, and less thermal shrinkages compared to the neat commercial separator. The coated PPA8 separator (zeolite to binder ratio of 8) showed the lowest wettability (contact angle of 0°) and electrolyte uptake (270%) due to its surface porosity resulting from the zeolite particles interstitial cavities as well as their internal cavities. Also, the PPA8 separator ion conductivity was found as 2.25 mS cm−1 and C‐rate and cycling performance of its assembled battery were higher compared to those of the commercial PP separator assembled battery. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47841.

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“…Exclusively, Li-ion batteries are one the most promising solutions owing to their outstanding electrochemical performance [8]. Li-ion batteries comprise a separator [9], electrolyte [10], anode [11], and cathode [12]. Within this, the electrochemical performance and capacity of the battery are highly dependent on the choice of cathode materials.…”

Section: Introductionmentioning

confidence: 99%

Eggshell-Membrane-Derived Carbon Coated on Li2FeSiO4 Cathode Material for Li-Ion Batteries

et al. 2020

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Lithium iron orthosilicate (LFS) cathode can be prepared via the polyol-assisted ball milling method with the incorporation of carbon derived from eggshell membrane (ESM) for improving inherent poor electronic conduction. The powder X-ray diffraction (XRD) pattern confirmed the diffraction peaks without any presence of further impure phase. Overall, 9 wt.% of carbon was loaded on the LFS, which was identified using thermogravimetric analysis. The nature of carbon was described using parameters such as monolayer, and average surface area was 53.5 and 24 m 2 g −1 with the aid of Langmuir and Brunauer-Emmett-Teller (BET) surface area respectively. The binding energy was observed at 285.66 eV for C-N owing to the nitrogen content in eggshell membrane, which provides more charge carriers for conduction. Transmission electron microscopy (TEM) images clearly show the carbon coating on the LFS, the porous nature of carbon, and the atom arrangements. From the cyclic voltammetry (CV) curve, the ratio of the anodic to the cathodic peak current was calculated as 1.03, which reveals that the materials possess good reversibility. Due to the reversibility of the redox mechanism, the material exhibits discharge specific capacity of 194 mAh g −1 for the first cycle, with capacity retention and an average coulombic efficiency of 94.7% and 98.5% up to 50 cycles.Energies 2020, 13, 786 2 of 13 iron silicate (Li 2 FeSiO 4 ) arrived in 2005 with the theoretical capacity twice the time of LiFePO 4 . It is also a safer and environmentally benign cathode material for energy storage applications [17]. Physical and electrochemical factors such as structural imperfection, ion diffusion, and low electronic conduction inhibit the utilization of theoretical capacity [18]. The inherent poor electronic conduction and ionic diffusion must be resolved by adopting some approaches such as particle size reduction [19], metal doping [20], and carbon coating on the surface of LFS [21]. The reduced particle size of LFS paved a way to shorten the Li + diffusion path. Hence, nanosized materials are still emerging in Li-ion batteries [22]. Cation doping is an effective strategy for widening the Li + diffusion channel and increases the output voltage of LFS-based Li-ion batteries [23]. Carbon coating is another effective approach to improve the electronic conductivity of cathodes made from Li 2 FeSiO 4 . Not only does it display excellent conduction behavior, carbon established an ideal matrix for cathode LFS which is due to the high dispersal over the surface. Besides, carbon coating prevents the decomposition of the electrolyte and integrates the particles within the volume. In this LFS, different carbon sources have been used to enhance the conductivity of LFS [24]. In the sol-gel method, sorbitanlaurat was used as carbon source by Qu et al. [25] and obtained the specific discharge capacity of 187 mAh g −1 at 0.1 C. Yen et al. [26] reveals that carbon derived from L-ascorbic acid on LFS exhibits the capacity of 137 mAh g −1 at slow rate (C/16). The biolo...

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Novel aramid nanofiber-coated polypropylene separators for lithium ion batteries

Abstract: Novel aramid nanofiber (ANF)-coated polypropylene (PP) separators with improved performance were successfully fabricated by dip-coating the surface cationized PP separators in an ANF dispersion.

Cited by 145 publications

References 58 publications

Advanced Separators for Lithium‐Ion and Lithium–Sulfur Batteries: A Review of Recent Progress

Advanced Separators for Lithium‐Ion and Lithium–Sulfur Batteries: A Review of Recent Progress

Preparation of 4A zeolite coated polypropylene membrane for lithium‐ion batteries separator

Eggshell-Membrane-Derived Carbon Coated on Li2FeSiO4 Cathode Material for Li-Ion Batteries

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