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US 9,853,269 B2Granted
Electrical insulation layer and battery device
AssigneesSekisui Chemical Co., Ltd., University of Massachusetts
InventorsYuying Tang, James Watkins, Kenichi Shinmei, Rasika Dasanayake Aluthge, Susumu Koizumi, Masashi Kanoh
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Abstract
An electrical insulation layer including microparticles and having a mesoporous structure; and a battery device including a cathode, an anode, an electrical insulation layer including microparticles and having a mesoporous structure, the electrical insulation layer being arranged between the anode and the cathode, and an ion conductive composition.
Claims18
An electrical insulation layer having a mesoporous structure and comprising:
- microparticles having an average particle diameter of 0.5 μm to 40 μm,
- nanoparticles having an average particle diameter of 3 nm to less than 500 nm,
- a binder, and
- an ion conductive composition;
- wherein said microparticles comprise particles of polymethylurea, said nanoparticles comprise particles of aluminum oxide, and said binder comprises lithium polyacrylate.
2 more elements
Dependencies are inferred from the claim text.