Method for preparing polymer electrolytes

Method for preparing polymer electrolytes

  • CN 104,681,295 B
  • Filed: 01/23/2015
  • Issued: 10/11/2019
  • Est. Priority Date: 01/23/2015
  • Status: Active Grant
First Claim
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1. a kind of method for preparing polymer electrolytes, it is characterised in that include the following steps:

  • 1. weighing polyoxyethylene and vinylidene fluoride-hexafluoropropylene copolymer by weight 1;

    4~4;

    1, composition mixture A is mixed,Measure propene carbonate and glycol dimethyl ether at 1;

    8~8;

    1 by volume, mixture A is added mixing composition organic solvent BInto organic solvent B, the total weight of mixture A is the 2%~10% of organic solvent B weight, water-bath at 60 DEG C~100 DEG C, directlyTo being completely dissolved, plasticizer is added, the weight of the plasticizer is the 10%~30% of mixture A total weight, obtains macromoleculeNanometer mixed liquor;

    2. the I that molar ratio is 1;

    5~1;

    10 is added into step 1. resulting high molecular nanometer mixed liquor2/ KI redox electricityIt is right, obtain polymer electrolyte matrix, the I2O in K and polyoxyethylene in/KI oxidation-reduction pair meets, and K/O molesThan being 0.6~0.8;

    3. crosslinking agent is added into 2. polymer electrolyte matrix that step obtains, continues stirring until while being stirred continuouslyBe uniformly mixed, obtain the polymer dielectric based on crosslinking agent, the weight of the crosslinking agent be mixture A total weight 25%~125%, the crosslinking agent is the aprotic solvent for the thiocarbamide that concentration is 0.05g/ml~0.10g/ml;

    4. the polymer dielectric based on crosslinking agent is added drop-wise on dye sensitized nano crystal film, it is horizontally arranged in baking oven 70It is persistently toasted in the environment of DEG C 1~3 hour, covers platinum to electrode;

    The aprotic solvent is in dimethyl sulfoxide, dimethylformamide, dioxanes, hexamethyl phosphoramide and tetrahydrofuranIt is one or more;

    The plasticizer is Nano particles of silicon dioxide.

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