Electrospun Nanofibers for Sandwiched Polyimide/Poly (vinylidene fluoride)/Polyimide Separators with the Thermal Shutdown Function

Wu, Dezhi; Shi, Chuan; Huang, Shaohua; Qiu, Xiaochun; Wang, Huan; Zhan, Zhan; Zhang, Peng; Zhao, Jinbao; Sun, Di; Liu, Lin

doi:10.1016/j.electacta.2015.07.072

Cited by 131 publications

(56 citation statements)

References 29 publications

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“…Despite its high affinity to electrolyte, PVDF separators generally have an intrinsically low tensile strength and thermal stability. On one hand, the low thermal stability of PVDF can be used for the creation of tri‐layer separators with thermal shut‐down function (Table entry 21) . On the other hand, PVDF can be composited with other materials to yield separators with high stability.…”

Section: Advanced Separators For Li‐ion Batteriesmentioning

confidence: 99%

“…[47] Despite its high affinity to electrolyte, PVDF separators generally have an intrinsically low tensile strength and thermals tability.O no ne hand, the low thermal stabilityo f PVDF can be used for the creation of tri-layer separators with thermals hut-down function (Table 1e ntry 21). [48] On the other hand, PVDF can be composited with other materials to yield separators with highs tability. Poly(m-phenylene isophthalamide) (PMIA), which shows both excellentm echanicalp roperty and thermals tabilityo wing to the presence of benzene-amide chainsi nt he molecule, was used to constructatri-layer PVDF/ PMIA/PVDF separator.…”

Section: Separators Based On Other Polymersmentioning

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: 99%

Section: Separators Based On Other Polymersmentioning

confidence: 99%

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

et al. 2016

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“…Moreover, the separator exhibits 0% shrinkage at 135 °C and meltdown temperature reaches to 252 °C which is higher than the shutdown temperature of conventionally used separators, as shown in Figure b,c. Wu et al developed a trilayer PI/PVDF/PI separator with thermal shutdown function through electrospinning for LIBs. Owing to the high thermal stability, the top and bottom layers are composed of PI, whereas the middle layer is composed of PVDF.…”

Section: Types Of Separatorsmentioning

confidence: 99%

“…The PI/PVDF/PI separator exhibits superior electrochemical performances, high electrolyte uptake (476%), and ionic conductivity (3.46 mS cm −1 ) as compared to conventionally used multilayer polyolefin separators. By implementing a similar concept as used by Wu et al, Li et al developed the trilayer separator from amino functionalized poly(ether ether ketone) (PEEK) as outer layers and PMMA as an intermediate layer through electrospinning technique for LIBs. The PEEK/PMMA/PEEK separator owns high thermal stability with 0% shrinkage at 150 °C and high thermal shutdown window from 100 to 270 °C.…”

Section: Types Of Separatorsmentioning

confidence: 99%

“…d) Pictorial description of developed PI/PVDF/PI separator along with cross‐section SEM images before and after melting and shutdown behavior of intermediate PVDF layer and e) digital images of PP and PI/PVDF/PI (i–iv) and PVDF and PI (v–viii) before and after heating at different temperatures. Reproduced with permission . Copyright 2015, Elsevier B.V.…”

Section: Types Of Separatorsmentioning

confidence: 99%

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Recent Development in Separators for High‐Temperature Lithium‐Ion Batteries

Waqas

Ali

Feng

et al. 2019

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metric tons of carbon dioxide (CO 2 ) and other pollutants per year, which accelerate global warming and major climate changes. [2] In order to mitigate these serious issues caused by fossil fuels and to compete with the energy generating devices based on fossil fuels, renewable energy sources like solar energy, wind energy, bioenergy, and geothermal energy are potential alternative power resources. However, these renewable energy resources need highly efficient energy storage devices for integrating and well distribution of energy. Rechargeable battery technology with high energy, high power density, long life cycle capability, fast cycling rate, and reasonable cost is the possible solution to store energy obtained from these renewable sources. [3] Among many rechargeable energy storage devices, lithium-ion batteries (LIBs) are the promising energy sources for integrating renewable resources and high power applications, owing to high energy density, lightweight, high flexibility, slow self-discharge rate, high rate charging capability, long battery life, and environmental benignity. [4,5] The aforementioned attractive properties of rechargeable LIBs promote its utilization in the wide range of applications like laptops, cell phones, electric vehicle, hybrid electric vehicles, renewable power stations, stationary electric power, defense arsenal, subsurface exploration, thermal reactors, and space vehicles. [6][7][8][9] From the last 30 years, rapid development has been observed in LIBs technology. Presently, LIBs hold twofold energy density as compared to the first commercial LIBs developed by Sony in 1991, but still, there are some challenges associated with LIBs that need to be solved for achieving high power density and efficient performances at high and low temperatures. Safety, cost, and enhancement in energy and power densities are the major concerns in next generation LIBs. [10][11][12] Separator is one of the important components of LIBs that is not directly involved in the electrochemical reaction, however, its properties, structure, and composition greatly influence the performance of batteries with respect to internal resistance, long cycle performances, high capacity, and safety. [13] The basic functions of the separator are to prevent the contact between anode and cathode to avoid internal short circuits, store liquid electrolyte, and permit the migration of ions during the chargedischarge process. [14][15][16] The ideal separator should possess Lithium-ion batteries (LIBs) are promising energy storage devices for integrating renewable resources and high power applications, owing to their high energy density, light weight, high flexibility, slow self-discharge rate, high rate charging capability, and long battery life. LIBs work efficiently at ambient temperatures, however, at high-temperatures, they cause serious issues due to the thermal fluctuation inside batteries during operation. The separator is a key component of batteries and is crucial for the sustainability of LIBs at high-temperatures. Th...

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Nanofibers in Energy Applications

Dillard

Kalra

2022

Applications of Polymer Nanofibers

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Electrospun Nanofibers for Sandwiched Polyimide/Poly (vinylidene fluoride)/Polyimide Separators with the Thermal Shutdown Function

Cited by 131 publications

References 29 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

Recent Development in Separators for High‐Temperature Lithium‐Ion Batteries

Nanofibers in Energy Applications

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