Binder composition for non-aqueous secondary battery functional layer, composition for non-aqueous secondary battery functional layer, functional layer for non-aqueous secondary battery, battery member for non-aqueous secondary battery, and non-aqueous secondary battery
AssigneeZeon Corporation
InventorJunichi ASANO
Life of this patent
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Abstract
Provided is a binder composition for a non-aqueous secondary battery functional layer that enables production of a composition for a non-aqueous secondary battery functional layer that has excellent stability and can cause a non-aqueous secondary battery to display excellent cycle characteristics. The binder composition contains a water-soluble polymer and water. The water-soluble polymer has a contact angle with water of at least 40° and not more than 80° and has a degree of swelling in electrolyte solution of more than a factor of 1.0 and not more than a factor of 3.0.
Claims9
A binder composition for a non-aqueous secondary battery functional layer comprising:
- a water-soluble polymer;
- and
- water, wherein
- the water-soluble polymer has a contact angle with water of at least 40° and not more than 80°, and
- the water-soluble polymer has a degree of swelling in electrolyte solution of more than a factor of 1.0 and not more than a factor of 3.0.
Dependencies are inferred from the claim text.