Binder composition for secondary battery negative electrode, negative electrode for secondary battery, negative electrode slurry composition, manufacturing method, and secondary battery
申请人:Sasaki Tomokazu
公开号:US10224549B2
公开(公告)日:2019-03-05
A binder composition for a negative electrode of a secondary battery, including a particulate binder, and a water-soluble polymer containing an acidic functional group, wherein the water-soluble polymer has an ion conductivity of 1×10−5 to 1×10−3 S/cm; and a swelling degree of the water-soluble polymer to a liquid with a solubility parameter of 8 to 13 (cal/cm3)1/2 is 1.0 to 2.0 times a swelling degree of the particulate binder measured under the same conditions; and use thereof.
一种用于二次电池负极的粘结剂组合物,包括微粒粘结剂和含有酸性官能团的水溶性聚合物,其中水溶性聚合物的离子电导率为 1×10-5 至 1×10-3 S/cm;水溶性聚合物对溶解度参数为 8 至 13 (cal/cm3)1/2 的液体的溶胀度是在相同条件下测得的微粒粘结剂溶胀度的 1.0 至 2.0 倍;及其用途。