Nonaqueous secondary battery functional layer composition, nonaqueous secondary battery functional layer, and nonaqueous secondary battery
AssigneeZeon Corporation
InventorTakumi SUGIMOTO
Life of this patent
Estimating the term…
Abstract
A composition for a non-aqueous secondary battery functional layer including a particulate polymer, wherein the particulate polymer is a copolymer containing 20% by weight or more and 80% by weight or less of an aromatic monovinyl monomer unit; and 0.01% by weight or more and 2% by weight or less of a polyvalent ethylenically unsaturated crosslinkable monomer unit, a volume-average particle diameter D of the particulate polymer is 0.5 μm or more and 5 μm or less, and a swelling degree of the particulate polymer to an electrolyte solution is more than 1 time and 3 times or less; and a non-aqueous secondary battery including the same.
Claims6
A composition for a non-aqueous secondary battery functional layer comprising a particulate polymer, wherein
- the particulate polymer is a copolymer containing
- 20% by weight or more and 80% by weight or less of an aromatic monovinyl monomer unit;
- and
- 0.01% by weight or more and 2% by weight or less of a polyvalent ethylenically unsaturated crosslinkable monomer unit,
- a volume-average particle diameter D of the particulate polymer is 0.5 μm or more and 5 μm or less, and
- a swelling degree of the particulate polymer to an electrolyte solution is more than 1 time and 3 times or less.
A functional layer for a non-aqueous secondary battery comprising a particulate polymer, wherein
- the particulate polymer is a copolymer containing
- 20% by weight or more and 80% by weight or less of an aromatic monovinyl monomer unit;
- and
- 0.01% by weight or more and 2% by weight or less of a polyvalent ethylenically unsaturated crosslinkable monomer unit,
- a volume-average particle diameter of the particulate polymer is 0.5 μm or more and 5 μm or less, and
- a swelling degree of the particulate polymer to a specific electrolyte solution is more than 1 time and 3 times or less.
Dependencies are inferred from the claim text.