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US 12,098,252 B2Granted
Method for preparing hydrogel and energy storage device including the same
AssigneeResearch & Business Foundation Sungkyunkwan University
InventorsJae Yun Kim, Donghwan Ji
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Abstract
A method for preparing a hydrogel includes forming a pre-gel comprising polymer and metal salt particles, unidirectionally-shrinking and dehydrating the pre-gel, and impregnating the unidirectionally shrunk and dehydrated pre-gel with an ion solution to crosslink and rehydrate the unidirectionally shrunk and dehydrated pre-gel to produce the hydrogel.
Claims14
A method for preparing a hydrogel, the method comprising:
- forming a pre-gel comprising polymer and metal salt particles;
- unidirectionally-shrinking and dehydrating the pre-gel;
- impregnating the unidirectionally shrunk and dehydrated pre-gel with an ion solution to crosslink and rehydrate the unidirectionally shrunk and dehydrated pre-gel to produce the hydrogel;
- and
- impregnating the hydrogel with another ion solution, different from the ion solution, causing ion exchange in the hydrogel.
2 more elements
Dependencies are inferred from the claim text.