Facile fabrication of microporous polypropylene membrane separator for lithium-ion batteries

Bicy, K; Kalarikkal, Nandakumar; Stephen, A.; Rouxel, Didier; Thomas, Sabu

doi:10.1016/j.matchemphys.2020.123473

Cited by 22 publications

(13 citation statements)

References 32 publications

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“…To realize the lightweight and low heat transfer efficiency, porous material with inherently half-closed pores can effectively hinder the convective heat transfer of the gas and consequently reduce the thermal conductivity [1] . Porous ceramics are relatively high-quality porous material for their lightweight, high-temperature resistance, and excellent chemical corrosion resistance performance, which can be widely used in various extreme environments [2][3][4][5][6] . However, the pore structure shows a negative influence on the mechanical strength of the porous ceramics [7][8] , in which the brittle failure can be regarded as the major obstacle in its practical application.…”

mentioning

confidence: 99%

Porous SiC Ceramic Matrix Composite Reinforced by SiC Nanowires with High Strength and Low Thermal Conductivity

Ruan¹,

Yang²,

YANJingyi³

et al. 2022

Journal of Inorganic Materials

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：Porous design of SiC composites with lightweight, high strength, and low thermal conductivity can be obtained by constructing porous silicon carbide nanowires (SiCNWs) network and controlling chemical vapor infiltration (CVI) process. The SiCNWs network with an optimized volume fraction (15.6vol%) and uniform pore structure was prepared by mixing SiCNWs and polyvinyl alcohol (PVA) firstly. SiCNWs reinforced porous SiC ceramic matrix composite (SiCNWs/SiC) with a small uniform pore can be obtained by controlling the CVI parameters. The morphology of the grown SiC matrix, from the spherical particles to the hexagonal pyramid particles, can be influenced by the CVI parameters like temperature and reactive gas concentration. The strength of the SiCNWs/SiC ceramic matrix composites reach (194.3 ± 21.3) MPa with a porosity of 38.9% and thermal conductivity of (1.9 ± 0.1) W/(m• K), which shows the toughening effect and low thermal conductivity design.

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mentioning

confidence: 99%

Porous SiC Ceramic Matrix Composite Reinforced by SiC Nanowires with High Strength and Low Thermal Conductivity

Ruan¹,

Yang²,

YANJingyi³

et al. 2022

Journal of Inorganic Materials

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“…Lithium-ion batteries have the characteristics of high energy density, small size, rechargeability, etc. [1], and have been rapidly developed in various fields. However, the working environment of various industries is different, so it is particularly important to ensure the safety of lithium batteries [5].…”

Section: Introductionmentioning

confidence: 99%

An improved smoothing factor-extended kalman filtering method for accurate online state-of-charge estimation of Lithium-ion battery

Zhang

Wang

2022

J. Phys.: Conf. Ser.

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The state of charge of battery is an important index of battery management system. The Lithium-ion batteries are widely used in various industries, so they are full of uncertainty, which makes them difficult to estimate the state of charge of Lithium-ion batteries. To solve the problem of low accuracy and large variability in real-time estimation of Lithium-ion batteries, taking Lithium-ion batteries as the research object, the Thevenin model is used to simulate the working characteristics. On the basis of the extended Kalman filtering algorithm, through the influence of the covariance matrix and noise, a smoothing factor is introduced to increase the Kalman gain and improve flexibility. Experiments have proved that the smoothing factor-extended Kalman algorithm improves the flexibility of the algorithm, and at the same time reduces the non-linear error caused by the rapid charging and discharging changes of Lithium-ion batteries. In the Hybrid Pulse Power Characterization test, the maximum estimation error is 0.14%, and the average estimation error is 0.1%. It provides a new method for estimating the state of charge of Lithium-ion batteries.

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“…Polymer nanocomposites containing inorganic or organic particulate fillers have been attracted attention in recent years due to its dramatic ability to change the properties of polymer even with low concentration of nanofillers. These nanocomposites are employed in biomedical, industrial, and other areas such as energy harvesting and water purification 1–3 . Microporous polymer nanocomposites additionally enhance the applicability of nanocomposites in vast areas due to their high free volume fraction and large surface area.…”

Section: Introductionmentioning

confidence: 99%

“…These nanocomposites are employed in biomedical, industrial, and other areas such as energy harvesting and water purification. [1][2][3] Microporous polymer nanocomposites additionally enhance the applicability of nanocomposites in vast areas due to their high free volume fraction and large surface area. The nanostructured materials play a substantial role in governing the properties (porosity, pore size, pore shape, thermal, mechanical, and other properties) of the host polymer.…”

Section: Introductionmentioning

confidence: 99%

Interfacial tuning and designer morphologies of microporous membranes based on polypropylene/natural rubber nanocomposites

Bicy

Rouxel

Ponçot

et al. 2021

J of Applied Polymer Sci

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Microporous polypropylene (PP) nanocomposite membranes are in great demand in various fields such as energy harvesting, water purification, and other industrial applications. Thin films of PP/natural rubber (NR) blend nanocomposite have been prepared by melt mixing and the membranes are made porous by extracting the NR phase from the blend. The present study gives a better insight into the nanoparticle shape and localization‐tailored porous morphology of PP membrane. Thermodynamic prediction of nanofiller localization and its impact on morphology were studied. 2D clay platelets in PP matrix tune the morphology of the porous membrane into lamellar, whereas spherical nanofillers give elongated spherical pores. The localization of nanoparticles was observed using transmission electron microscope, which is also confirmed from theoretical prediction of localization of nanofillers with the help of interfacial energy and surface tension. Thermal studies reveal that nanofillers enhance the thermal stability of polymers. Mechanical studies reveal that nanoparticles improve the mechanical properties of the system. 2D platelet shaped‐nanofillers enhance the mechanical strength of the polymer up to 39%, which is higher than that obtained for 3D spherical nanofillers. Nanofiller shape and localization have a great influence in deciding the properties and porosity of the membrane.

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Facile fabrication of microporous polypropylene membrane separator for lithium-ion batteries

Cited by 22 publications

References 32 publications

Porous SiC Ceramic Matrix Composite Reinforced by SiC Nanowires with High Strength and Low Thermal Conductivity

Porous SiC Ceramic Matrix Composite Reinforced by SiC Nanowires with High Strength and Low Thermal Conductivity

An improved smoothing factor-extended kalman filtering method for accurate online state-of-charge estimation of Lithium-ion battery

Interfacial tuning and designer morphologies of microporous membranes based on polypropylene/natural rubber nanocomposites

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