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US 2020/0051710 A1Published application
Composite solid electrolytes for rechargeable energy storage devices
AssigneeInternational Business Machines Corporation
InventorsNaga Phani Babu Aetukuri, Robert D. Miller, Young-hye Na, John Campbell Scott, Sogol Yahyazadeh
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Abstract
A device includes an ion-conducting membrane with ion-conducting ceramic particles, and an ion-conducting polymer that surrounds the ion-conducting membrane. The ion-conducting polymer includes a pressure-deformable film with a glass transition temperature lower than an operation temperature of the device.
Claims10
A method for making an energy storage device, the method comprising:
- dipping an ion-conducting membrane into a pre-polymer mixture of an ion-conducting polymer, wherein the pre-polymer mixture comprises polymerizable compounds, a compound that releases Li-ions, a polymerization initiator, and an optional ionic liquid;
- polymerizing the pre-polymer mixture under curing conditions when it is on the ionconducting membrane to form an ion-conducting polymer;
- and
- assembling a resulting free-standing solid electrolyte with electrodes to form an energy storage device.
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A method for making an energy storage device, the method comprising:
- dipping an ion-conducting membrane comprising ion-conducting ceramic particles into a pre-polymer mixture comprising polymerizable compounds chosen from monomers that form linear polymers, monomers that form crosslinked polymers, monomers that form star polymers, monomers that form block copolymers, and combinations thereof, and a Li-ion salt;
- applying a metal electrode adjacent to a major surface of the ion-conducting membrane;
- and
- polymerizing the pre-polymer mixture in-situ to form an ion-conducting polymer film between the ion-conducting membrane and the electrode.
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Dependencies are inferred from the claim text.