4.8 Article

Hybrid Electrolytes with Controlled Network Structures for Lithium Metal Batteries

Journal

ADVANCED MATERIALS
Volume 27, Issue 39, Pages 5995-6001

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201502059

Keywords

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

Funding

  1. China Scholarship Council
  2. National Science Foundation [CMMI-1334067, CBET 1510092]
  3. Directorate For Engineering [1334067] Funding Source: National Science Foundation
  4. Div Of Chem, Bioeng, Env, & Transp Sys [1510092] Funding Source: National Science Foundation

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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.

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