Hybrid electrolytes with controlled network structures for lithium metal batteries

Adv Mater. 2015 Oct 21;27(39):5995-6001. doi: 10.1002/adma.201502059. Epub 2015 Aug 28.

Abstract

Solid polymer electrolytes (SPEs) with tunable network structures are prepared by a facile one-pot reaction of polyhedral oligomeric silsesquioxane and poly(ethylene glycol). These SPEs, with high conductivity and high modulus, exhibit superior resistance to lithium dendrite growth even at high current densities. Measurements of lithium metal batteries with a LiFePO4 cathode show excellent cycling stability and rate capability.

Keywords: lithium dendrites; lithium metal batteries; poly(ethylene oxide); polyhedral oligomeric silsesquioxanes (POSS); solid polymer electrolytes.