Three-dimensional cross-linked network gel polymer electrolyte membrane as well as preparation method and application thereof
A gel polymer and three-dimensional cross-linking technology, which is applied in the direction of solid electrolyte, non-aqueous electrolyte, electrolyte immobilization/gelation, etc., can solve the problem of increasing the interface impedance between the polymer electrolyte and the electrode, reducing the specific energy density of the battery, and reducing the Ion conductivity and other issues to achieve the effect of promoting rapid transmission, improving mechanical properties, and increasing ionic conductivity
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Embodiment 1
[0059] A method for preparing a three-dimensional crosslinked network gel polymer electrolyte membrane, comprising the following steps:
[0060] Step (1): Mix 12.25mL of 4-chloromethylstyrene and 0.25mL of divinylbenzene and inject it slowly into 248mL of deionized water with a micro-injection pump, heat up to 75°C after mixing, and weigh 0.21g Azobisisobutylamidine hydrochloride (V50 initiator) was dissolved in 2 mL of deionized water, injected into the reaction system with a needle, refluxed at 75°C for 4 hours under an inert atmosphere, washed with ethanol and water after centrifugation, and dried in vacuum at 40°C , to obtain an intermediate product one;
[0061] Step (2): Add 3.5 g of the intermediate product prepared in step (1) into 112 mL of 1,2-dichloroethane, stir slowly overnight to allow it to fully swell, raise the temperature to 80 ° C, and add 3.7 g of anhydrous trichloro Iron chloride was refluxed for 24 hours, then acetone / hydrochloric acid / water mixed solven...
Embodiment 2
[0079] A method for preparing a three-dimensional crosslinked network gel polymer electrolyte membrane, comprising the following steps:
[0080] Step (1): Mix 12.25mL of 4-chloromethylstyrene and 0.25mL of divinylbenzene and inject it slowly into 248mL of deionized water with a micro-injection pump, heat up to 75°C after mixing, and weigh 0.21g Azobisisobutylamidine hydrochloride (V50 initiator) was dissolved in 2 mL of deionized water, injected into the reaction system with a needle, refluxed at 75°C for 4 hours under an inert atmosphere, washed with ethanol and water after centrifugation, and dried in vacuum at 40°C , to obtain an intermediate product one;
[0081] Step (2): Add 3.5 g of the intermediate product prepared in step (1) into 112 mL of 1,2-dichloroethane, stir slowly overnight to allow it to fully swell, raise the temperature to 80 ° C, and add 3.7 g of anhydrous trichloro Iron chloride was refluxed for 24 hours, then acetone / hydrochloric acid / water mixed solven...
Embodiment 3
[0086] A method for preparing a three-dimensional crosslinked network gel polymer electrolyte membrane, comprising the following steps:
[0087] Step (1): Mix 12.25mL of 4-chloromethylstyrene and 0.25mL of divinylbenzene and inject it slowly into 248mL of deionized water with a micro-injection pump, heat up to 75°C after mixing, and weigh 0.21g Azobisisobutylamidine hydrochloride (V50 initiator) was dissolved in 2 mL of deionized water, injected into the reaction system with a needle, refluxed at 75°C for 4 hours under an inert atmosphere, washed with ethanol and water after centrifugation, and dried in vacuum at 40°C , to obtain an intermediate product one;
[0088] Step (2): Add 3.5 g of the intermediate product prepared in step (1) into 112 mL of 1,2-dichloroethane, stir slowly overnight to allow it to fully swell, raise the temperature to 80 ° C, and add 3.7 g of anhydrous trichloro Iron chloride was refluxed for 24 hours, then acetone / hydrochloric acid / water mixed solven...
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