Solid hybrid polymer electrolytes
OwnerRalph Ulrich, Josef W. Zwanziger +3inventors
InventorsRalph Ulrich, Josef W. Zwanziger, Susan de Paul, Hans Wolfgang Spiess, Ulrich Wiesner
Life of this patent
Estimating the term…
Abstract
The invention relates to a process for preparing a solid organic-inorganic hybrid polymer electrolyte containing lithium ions. The product shows high strength conductivity and lithium transference values. Further, the product can be self-organized into nanometer scale plates and rods paving the way to making lithium conducting cables for example and hence batteries of nanometer size.
Claims27
A process for preparing a solid hybrid polymer electrolyte comprising the steps:
- a) forming a mixture comprising at least one silicon-containing precursor and at least one aluminum-containing precursor,
- b) reacting the mixture from a) whereby a sol is formed,
- c) adding a polyalkylene oxide-containing polymer and a lithium salt to the mixture from step a) and/or to the sol from step b) wherein the polyalkylene oxide-containing polymer has a molecular weight in the range of from 100 to 10,000 g/mol, and
- d) reacting the mixture from c) whereby a solid organic-inorganic hybrid polymer electrolyte is obtained.
A process for preparing a solid hybrid polymer electrolyte comprising the steps:
- a) forming a mixture comprising at least one silicon-containing precursor and at least one aluminum-containing precursor,
- b) reacting the mixture from a) whereby a sol is formed,
- c) adding a polyalkylene oxide-containing polymer and a lithium salt to the mixture from step a) and/or to the sol from step b) and
- d) reacting the mixture from c) whereby a solid organic-inorganic hybrid polymer electrolyte is obtained;
- wherein the aluminum-containing precursor is a compound of the formula (II)
- Al(OR)3 (II)
- wherein
- each R is independently a straight-chain or branched, substituted or unsubstituted C1-C8 alkyl group.
A process for preparing a solid hybrid polymer electrolyte comprising the steps:
- a) forming a mixture comprising at least one silicon-containing precursor and at least one aluminum-containing precursor,
- b) reacting the mixture from a) whereby a sol is formed,
- c) adding a polyalkylene oxide-containing polymer and a lithium salt to the mixture from step a) and/or to the sol from step b) and
- d) reacting the mixture from c) whereby a solid organic-inorganic hybrid polymer electrolyte is obtained;
- wherein the polymer is a polyethylene oxide-containing polymer that is a block copolymer comprising polyethylene oxide blocks and hydrophobic blocks.
Dependencies are inferred from the claim text.