High performance of polyethylene composite separators modified by carbon nanotube, lithium salt and SiO2 nanoparticles for lithium ion batteries

Separator of polyacrylonitrile modified with Prussian blue analogs for high-efficiency aqueous zinc-ion batteries

“…The role of a separator in the battery is to primarily prevent physical contact between the electrodes and allow the transfer of ions while hardly affecting the electrochemical performance of the battery. Consequently, a functionalized separator was considered the most promising strategy for the regulation of ion diffusion, 43–45 selective sieving of ions, 46 and creation of uniform electric field in LIBs, which had been widely reported in the field of LIBs, although it did not receive the necessary attention while developing AZIBs. 47,48 For example, a commercial polypropylene separator modified with Prussian blue/graphene oxide was reported to serve as an ionic sieve-type composite separator, which could homogenize the distribution of Li ions, leading to highly stable Li metal batteries.…”

H-Bond Cross-Linked Polyimide Nanofiber-Modified Polyethylene Composite Separators for Lithium-Ion Batteries

“…Furthermore, the obtained separator exhibited better electrolyte wettability and high ionic conductivity. However, there are still several important problems in the ceramic-coating modified polyolefin membrane that have not been solved, , for instance, the weak adhesion between the ceramic layer and polyolefin substrate. Introducing some binders to enhance adhesion may result in a great reduction of the permeable and a significant increase of the internal resistance.…”