Effect of microporous structure on thermal shrinkage and electrochemical perf…

Abstract. In a bid to develop a separator with improved thermal shrinkage that critically affects internal shortcircuit failures of lithium-ion batteries, we demonstrate a new approach, which is based on introducing microporous composite coating layers onto both sides of a polyethylene (PE) separator. The composite coating layers consist of alumina (Al2O3) nanoparticles and polyvinylidene f…