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US 12,738,539 B2Granted
Electrolyte hydrogel and its use in an electrochemical cell
AssigneeVARTA Microbattery GmbH
InventorsIdoia Urdampilleta González, Martin Krebs, Iñaki Gómez Agúndez, Luis Cesar Colmenares Rausseo, Jose Alberto Blázquez Martín
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Abstract
An electrolyte hydrogel for an electrochemical cell includes a self standing polymer network with a crosslinked, non-ionic polymer and a cationic polymer and a salt in an aqueous solvent and/or dispersant.
Claims15
An electrolyte hydrogel for an electrochemical cell comprising a self standing polymer network with a crosslinked, non-ionic polymer and a cationic polymer and a salt in an aqueous solvent and/or dispersant.
A method of preparing an electrolyte hydrogel comprising:
- a. providing a composition, wherein the composition comprises
- i. a crosslinkable, non-ionic polymer,
- ii. a cationic polymer,
- iii. an aqueous solvent and/or dispersant, and
- iv. a salt which is solved in at least one of aqueous solvent and dispersant;
- b. forming a layer of the composition on a support;
- and
- c. treating the layer such that crosslinking of the non-ionic polymer occurs and thereby the electrolyte hydrogel is formed based on a self standing polymer network.
5 more elements
Dependencies are inferred from the claim text.