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

Abstract

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.

Development of functional (flame‐retardant and anti‐bacterial) and hybrid (carbon‐glass/epoxy) composites with improved low velocity impact response

“…From the results, it could be seen that the value of the duration of flaming and afterglow were higher for H3 (GCCG) as compared to the H4 (CGGC) due to the presence of carbon in outer layer of H4 composite which is more heat resistive as compared to the glass. [39] While ZrP particles act as char promoting agents. When samples were exposed to flame, char was formed along with inflammable gases which formed an insulating layer on the surface and slowed access to oxygen.…”

Foundation Research on Physicochemical Properties of Mine Insulation Materials

“…In this test, the cementitious material is cement. Its role is to form a slurry after stirring with er, which can harden in air or better in water and can firmly cement sand, stone and other Glass fiber is made of natural ores as raw materials, mixed with substances such as soda ash and boric acid, and in the molten state, drawn or blown into extremely fine fibrous materials by external force [36]. The specific parameters are shown in Table 3.…”

“…The specific parameters are shown in Table 3. Glass fiber is made of natural ores as raw materials, mixed with substances such as soda ash and boric acid, and in the molten state, drawn or blown into extremely fine fibrous materials by external force [36]. The specific parameters are shown in Table 3.…”

A non‐Newtonian fluidic cellulose‐modified glass microfiber separator for flexible lithium‐ion batteries

“…The large pores of G‐film prevent the uniform diffusion and transmission of ions; thus, more electrolyte is required to fill these spaces to ensure stable battery operation, which increases the risk of flammable liquid leakage. Although several strategies have been developed to improve the properties of G‐film, such as dip‐coating, casting, immersion, or layer‐by‐layer assembly, 25–28 problems still exist, including a lack of true flexibility and non‐adjustable pore sizes.…”