Porous and non-porous micrometer-sized glass platelets as separators for lithium-ion batteries

Schadeck, Ulrich; Kyrgyzbaev, Kanat; Gerdes, Thorsten; Willert‐Porada, Monika; Moos, Ralf

doi:10.1016/j.memsci.2017.10.061

Cited by 27 publications

(23 citation statements)

References 36 publications

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“…The BET surface area of GNM is very low and less than 10 m 2 /g, indicated that the GNM is non-porous. For comparison purposes, the non-porous of glass platelets show no significant pores with an average BET surface area of 0.43 m 2 /g has been reported Schadeck et al (2017). SEM is used to study the morphology of graphite and after modified with magnetite nanoparticles Fe3O4.…”

Section: Characterization Of Adsorbentsmentioning

confidence: 99%

Improvement of Carbon Dioxide Capture using Graphite Waste/ FE3O4 Composites

Kusrini¹,

Sasongko

Nasruddin

et al. 2017

IJTech

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The abundance of graphite waste can be processed into valuable materials; one alternative is by making it into an adsorbent. Graphite-based adsorbent modification can be accomplished by adding magnetite nanoparticles Fe3O4. The addition of magnetite nanoparticles has been reported to improve the adsorption ability of the graphite waste. In this study, we have developed a new carbon dioxide (CO2) adsorbent based on graphite waste modified with magnetite nanoparticle Fe3O4. The Fe3O4 were prepared using an impregnation technique. The graphite/Fe3O4 composites were characterized by scanning electron microscopy with an energydispersive X-ray system (SEM-EDX) and Brunauer, Emmett, and Teller (BET). The CO2 adsorption performance was evaluated using an isothermal adsorption method at various temperatures (30, 35, and 45C) and pressures (3, 5, 8, 15, and 20 bar). This resulted in graphite with different magnetite modification levels, namely non-modified graphite (GNM), a graphite/Fe3O4 20% (w/w) composite (G/Fe3O4 20%), and a graphite/Fe3O4 35% (w/w) (G/Fe3O4 35%), which indicated that the largest adsorption capacity is 10.305 mmol.g -1 at 30C and 20 bar pressure for the G/Fe3O4 20% composite. This finding further revealed that modifying graphite waste with magnetite nanoparticles Fe3O4 has been proved to increase the capacity for adsorbing CO2 gas.

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Section: Characterization Of Adsorbentsmentioning

confidence: 99%

Improvement of Carbon Dioxide Capture using Graphite Waste/ FE3O4 Composites

Kusrini¹,

Sasongko

Nasruddin

et al. 2017

IJTech

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show abstract

“…The results of the hot oven and the hot punch test were compared to commercially available polymer-based separators, a polymer trilayer (PTS), and a ceramic-coated polymer separator (CCPS). Thermogravimetric measurements of commercially available polymer-based separators compared to bare glass platelets were shown already in the previous study [41].…”

Section: Thermal Stabilitymentioning

confidence: 59%

“…Further details are described in [41]. A glass fiber nonwoven was purchased (Johns Manville Corp., Denver, CO, USA).…”

Section: Methodsmentioning

confidence: 99%

“…In summary, a weight loss of approximately 8% was observed at temperatures of 585 °C. In comparison, commercial polymer-based separators show a weight loss of 25% (ceramic-coated polymer separator) and >95% (polymer trilayer separator) at 585 °C [41].…”

Section: Thermal Stabilitymentioning

confidence: 97%

“…These lamellae were further stretched and simultaneously quenched until the glass broke, resulting in micrometer-sized glass platelets. Further details of the process are described by Kyrgyzbaev et al [45] and Schadeck et al [41].…”

Section: Preparation Of a Glass Platelet-glass Fiber Nonwoven Composimentioning

confidence: 99%

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Flexible, Heat-Resistant, and Flame-Retardant Glass Fiber Nonwoven/Glass Platelet Composite Separator for Lithium-Ion Batteries

Schadeck

Kyrgyzbaev

Zettl³

et al. 2018

Energies

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Abstract:A new type of high-temperature stable and self-supporting composite separator for lithium-ion batteries was developed consisting of custom-made ultrathin micrometer-sized glass platelets embedded in a glass fiber nonwoven together with a water-based sodium alginate binder. The physical and electrochemical properties were investigated and compared to commercial polymer-based separators. Full-cell configuration cycling tests at different current rates were performed using graphite and lithium iron phosphate as electrode materials. The glass separator was high-temperature tested and showed a stability up to at least 600 • C without significant shrinking. Furthermore, it showed an exceptional wettability for non-aqueous electrolytes. The electrochemical performance was excellent compared to commercially available polymer-based separators. The results clearly show that glass platelets integrated into a glass fiber nonwoven performs remarkably well as a separator material in lithium-ion batteries and show high-temperature stability.

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A Critical Review on Materials and Fabrications of Thermally Stable Separators for Lithium‐Ion Batteries

Wang

Shen

et al. 2021

Adv Materials Technologies

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Li‐ion batteries nowadays are widely used as energy storage systems owing to their high power and energy densities. However, the safety of Li‐ion batteries has increasingly become a grave concern, and how to effectively mitigate or avoid the thermal runaway of Li‐ion batteries, particularly during fast charging/discharging, is a critical issue. It has been pointed out that among various factors governing the safety of Li‐ion batteries, the thermal stability of separators plays an important role. In this review, a critical discussion is reported on recent research and development of thermally stable separators, including surface modified polyolefin separators, novel polymer separators, inorganic structured separators, and functional smart separators, for improving the safety of Li‐ion batteries, summarizing different techniques, processes, and materials being researched and developed for these separators for lithium‐ion batteries. Finally, suggestions are provided on future directions to develop thermally stable separators with respect to the safety of next‐generation Li‐ion batteries.

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Porous and non-porous micrometer-sized glass platelets as separators for lithium-ion batteries

Cited by 27 publications

References 36 publications

Improvement of Carbon Dioxide Capture using Graphite Waste/ FE3O4 Composites

Improvement of Carbon Dioxide Capture using Graphite Waste/ FE3O4 Composites

Flexible, Heat-Resistant, and Flame-Retardant Glass Fiber Nonwoven/Glass Platelet Composite Separator for Lithium-Ion Batteries

A Critical Review on Materials and Fabrications of Thermally Stable Separators for Lithium‐Ion Batteries

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