Fabrication of shrinkage-free poly(ether ether ketone) nanofibrous mat and its use for flexible and thermally-recycled MOF composites

Ye, Hai‐Mu; Zhu, Wei; Liu, Ping; Wei, Xue-Wei; Li, Hua; Cai, Li-Hai; Meng, Xiaoyu; Huang, Guoyong; Zhou, Qiong

doi:10.1016/j.mtcomm.2019.100862

Cited by 9 publications

(4 citation statements)

References 40 publications

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“…The melting point of polyethylene terephthalate (PET), generally known as polyester resin, is 255-260 °C. [84,87,88] It also maintains great physical and mechanical qualities throughout a wide temperature range. [89] The modification processing of PET separator is simpler than that of aramid and PI separator, taking into account the economy and certain heat resistance, and it remains for further expansion.…”

Section: Separators With Different Melting Pointsmentioning

confidence: 99%

Thermal‐Stable Separators: Design Principles and Strategies Towards Safe Lithium‐Ion Battery Operations

Lin

Wang²,

Wang

et al. 2022

ChemSusChem

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Lithium‐ion batteries (LIBs) are momentous energy storage devices, which have been rapidly developed due to their high energy density, long lifetime, and low self‐discharge rate. However, the frequent occurrence of fire accidents in laptops, electric vehicles, and mobile phones caused by thermal runaway of the inside batteries constantly reminds us of the urgency in pursuing high‐safety LIBs with high performance. To this end, this Review surveyed the state‐of‐the‐art developments of high‐temperature‐resistant separators for highly safe LIBs with excellent electrochemical performance. Firstly, the basic properties of separators (e. g., thickness, porosity, pore size, wettability, mechanical strength, and thermal stability) in constructing commercialized LIBs were introduced. Secondly, the working mechanisms of advanced separators with different melting points acting in the thermal runaway stage were discussed in terms of improving battery safety. Thirdly, rational design strategies for constructing high‐temperature‐resistant separators for LIBs with high safety were summarized and discussed, including graft modification, blend modification, and multilayer composite modification strategies. Finally, the current obstacles and future research directions in the field of high‐temperature‐resistant separators were highlighted. These design ideas are expected to be applied to other types of high‐temperature‐resistant energy storage systems working under extreme conditions.

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Section: Separators With Different Melting Pointsmentioning

confidence: 99%

Thermal‐Stable Separators: Design Principles and Strategies Towards Safe Lithium‐Ion Battery Operations

Lin

Wang²,

Wang

et al. 2022

ChemSusChem

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“…High temperature resistant polymers can be used to make up for this deficiency. Ye et al [11] dissolves PEEK with two chloroacetic acid (DCA) at 180 degrees Celsius. After coating the PEEK solution in the nanofiber shell of the spinnable polymer PBS by coaxial electrospinning, the shell core structure nanofibers are obtained, and then the core shell fibers are treated at low temperature to convert PEEK solution into gel state.…”

Section: Electrospinning Nanofiber Separator 21 Polymer Nanofiber Sep...mentioning

confidence: 99%

Research progress on the electrospinning nanofiber lithium-ion battery separators

Zhang¹,

Yu²,

Zhai³

et al. 2022

CAN

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Electrospinning nanofiber membrane has the advantages of wide raw materials, large specific surface area, and high porosity. It is an ideal separator material for lithium-ion batteries. This paper first introduces two common electrospinning nanofiber diaphragms: polymer, polymer, and inorganic composite, and then focuses on the modification methods of composite modification, blending modification, and inorganic modification, as well as the methods of electrospinning nano modified polyolefin diaphragm. Finally, the development direction of the electrospinning lithium-ion battery separator has prospected.

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“…Chemical modification refers to grafting ceramic particles or other high-temperature-resistant and polar organics to the surface of the separators or doping these matters into the main bodies of the separators to improve their thermostability. − Although chemical modification does not increase the thickness of the separators, its wide utilization may be hindered by the rather complicated and costly process . (2) The second category is preparing separators by using heat-resistant polymers such as aromatic polyamide (PAI), polyimide (PI), poly(ether-ether-ketone) (PEEK), polyacrylonitrile (PAN), polybenzimidazole (PBI), etc. ,,− The preparation of these separators is mostly through an electrostatic spinning method, which may not be suitable for mass production. The above-mentioned two methods demonstrate certain advantages but cannot fully solve the problems of weak thermal stability and poor wettability of commercial separators.…”

Section: Introductionmentioning

confidence: 99%

Highly Thermally Stable, Highly Electrolyte-Wettable Hydroxyapatite/Cellulose Nanofiber Hybrid Separators for Lithium-Ion Batteries

Liu

et al. 2023

ACS Appl. Energy Mater.

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Separators have an important influence on the safety and performance of lithium-ion batteries (LIBs). However, traditional polyolefin-based separators suffer from poor thermal stability and weak electrolyte wettability. Here, by using hydroxyapatite (HAP) and cellulose nanofibers (CNFs) as raw materials, we fabricated a unique HAP/CNF hybrid separator. The separators exhibit excellent thermal properties, with high thermal stability (up to 250 °C) and outstanding flame retardancy. The separators also demonstrate excellent electrolyte wettability. Compared to polypropylene (PP) separators, the HAP/CNF separators show a smaller contact angle with electrolytes, 17.2°for HAP/CNF and 45.5°for PP. Meanwhile, the HAP/ CNF separators illustrate an excellent smoothness of 68.0 nm. In addition, the batteries assembled with the hybrid separators display a better performance compared with the batteries assembled with commercial PP separators. The raw materials are green, and the fabrication processes are free of organic solvents. We envision that the HAP/CNF hybrid separator could be a promising separator candidate for next-generation high-safety and high-performance LIBs.

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Fabrication of shrinkage-free poly(ether ether ketone) nanofibrous mat and its use for flexible and thermally-recycled MOF composites

Cited by 9 publications

References 40 publications

Thermal‐Stable Separators: Design Principles and Strategies Towards Safe Lithium‐Ion Battery Operations

Thermal‐Stable Separators: Design Principles and Strategies Towards Safe Lithium‐Ion Battery Operations

Research progress on the electrospinning nanofiber lithium-ion battery separators

Highly Thermally Stable, Highly Electrolyte-Wettable Hydroxyapatite/Cellulose Nanofiber Hybrid Separators for Lithium-Ion Batteries

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