Preparation of hydrophilic polyethylene/methylcellulose blend microporous membranes for separator of lithium-ion batteries

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

“…[5] Ap olyethylene/methylcellulose composite separator was prepared by at hermally induced phase separation. [59] Incorporation of methylcellulose significantly enhanced the wettability of the composite separator,a s revealed by the water contact angle measurement. As ar esult of the enhanced wettability,t he separator exhibited high dischargec apacity.H owever,t he tensile strengtheno ft he composite separator was relatively low.Anagarose/polyacrylonitrile composite separator was produced by ad ual electrospinning process.…”

Polymer Template Synthesis of Soft, Light, and Robust Oxide Ceramic Films

“…During cycling, the excessive heating and the chemical oxidation as well as the mechanical attack by electrode expansion might damage the separators. Efforts to enhance the stability of separators have been focused on (1) fabricating ultrastrong separators with special polymers that could withstand high temperatures of 120°C–350°C (Jiang et al., 2013, Lin et al., 2016); (2) blending different polymers together to construct multicomponent separators, in which the polymer with the lowest melting point melted and clogged the permeating pores to turn off the battery operation in the case of excessive heating (Shi et al., 2015, Kim et al., 2016, Nunes et al., 2015, Liao et al., 2016, Costa et al., 2013); and (3) forming composite separators by filling or coating the polymeric separators with chemically and thermally stable ceramic particles (Prosini et al., 2002, Lee et al., 2014, Song et al., 2015, Kim et al., 2006, Xiao et al., 2018, Yu et al., 2014, Liu et al., 2017, Cho et al., 2017), which could improve thermal resistances and promote fast heat dissipation. These methods significantly improved the stability of polymer separators, but still had problems.…”

Preparation and Characterization of Biopolymer Electrolyte Membranes Based on LiClO4-Complexed Methyl Cellulose as Lithium-ion Battery Separator

“…Because of its appealing properties, MC is promising to be developed into a host polymer as a matrix for biopolymer electrolyte membranes [44][45]. Some works used MC as a host polymer and/or blend/composite agent, for example MC-NH4NO3-PEG for fuel cell application [36], sulfonated poly(ether ether ketone) with methyl cellulose (SPEEK-MC) for proton exchange membrane [46], methyl cellulose/keratin hydrolysate composite membranes for composite membranes [31] and PE/MC blend microporous membranes as separator in lithium-ion batteries [47].…”

“…The phenomenon of stress and strain increasing simultaneously is called the elastic property. Liao [62] reported that highly mobile polymer chain segments, in turn, make the toughness increase. Based on this explanation, both pure MC and LiClO4complexed MC biopolymer electrolyte have microcrystalline polymer characteristics, a combination of flexibility and dimensional stability [61].…”