Ionogel-based batteries and ionogel liquid exchange
| DWPI Title: Battery e.g. lithium-ion battery, has ionogel that is arranged between first electrode and second electrode, second liquid disposed within pores of solid-phase matrix, second liquid comprising lithium-based electrolyte in solution with at least one of 1,3 dioxolane (DOL), or dimethyl ether (DME) |
| Abstract: An ionogel is formed by mixture of precursors, a catalyst, and an ionic liquid to form a sol-gel. The precursors and the catalyst react to form a solid-phase matrix that includes pores, wherein the ionic liquid is disposed within the pores. The gel is dried by way of thermal or vacuum drying to remove liquid byproducts of the precursor-catalyst reaction and to form a solid-state ionogel that comprises the solid-phase matrix with the ionic liquid disposed therein. The ionogel is immersed in a quantity of a liquid electrolyte that is soluble in the ionic liquid. As the liquid electrolyte dissolves into the ionic liquid, the ionic liquid is displaced by the liquid electrolyte, yielding an ionogel having the liquid electrolyte disposed within its pores. |
| Use: Battery i.e. lithium-ion battery. |
| Advantage: The method enables to form ionogel with application-tailored liquid electrolyte, which has excellent ion transport characteristics, and provides lithium ion battery having excellent safety and reliability, and high interfacial resistance between solid state electrolyte and electrodes due to interfacial reactions and poor interfacial contact, and excellent ion-transport characteristics. |
| Novelty: Battery comprises a first electrode (406) configured to accept lithium ions; a second electrode (410) configured to accept lithium ions; and an ionogen (422) disposed between the first electrode and the second electrode, where a first liquid was used to form the ionogel, and further where the ionogel comprises a solid-phase matrix having pores formed; and a second liquid (424) disposed within the pores of the solid-phase matrix, the second liquid comprising a lithium-based electrolyte in solution with at least one of 1,3 dioxolane (DOL), or dimethyl ether (DME), where the second liquid displaced the first liquid that was used to form the ionogel. |
| Filed: 12/13/2021 |
| Application Number: US17548872A |
| Tech ID: SD 15796.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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