Nonflammable quasi-solid-state electrolyte for stable lithium-metal batteries.

ABSTRACT: Rechargeable lithium batteries with high-voltage/capacity cathodes are regarded as promising high-energy-density energy-storage systems. Nevertheless, these systems are restricted by some critical challenges, such as flammable electrolyte, lithium dendrite formation and rapid capacity fade at high voltage and elevated temperature. In this work, we report a quasi-solid-state composite electrolyte (QCE) prepared by in situ polymerization reactions. The electrolyte consists of polymer matrix, inorganic filler, nonflammable plasticizers and Li salt, and shows a good thermal stability, a moderate ionic conductivity of 2.8 × 10^-4 S cm^-1 at 25 °C, and a wide electrochemical window up to 6.7 V. The batteries with the QCE show good electrochemical performance when coupl

SUBMITTER: Sun Q 

PROVIDER: S-EPMC9076527 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature