| 摘要 |
<p>The purpose of the present invention is to provide a binder composition for an electrode of a storage device that has high charging/discharging capacities and less capacity deterioration caused by cycle repetition of charging and discharging. A problem solving unit contains at least one type of polymer selected from a group in which the binder composition is made up of (A) polyamic acid and imidization polymer, and water (B). When the content of the (A) polymer is to Ma parts by weight and the content of the (B) water is to Mb parts by weight, the bilateral ratio (Ma/Mb) is within the range of 500-10,000.</p> |
