| abstract |
A binding agent for an electrode of an electrochemical element comprising an aqueous dispersion (I) containing a water-dispersible resin, characterized in that (I) contains at least one of (A) a vinyl polymer based thermally reversible thickener which exhibits a transition temperature (T) at which the miscibility thereof with water changes reversibly between hydrophilic and hydrophobic properties and (B) a water-dispersible resin having a unit containing a fluorine atom; an electrode material dispersion for an electrochemical element which comprises said binding agent and an electrode material (E); an electrode for an electrochemical element prepared from said electrode material dispersion; and a primary cell, a secondary cell, an aluminum electrolytic capacitor or an electric double layer capacitor having said electrode. Said binding agent allows the preparation of an electrode material dispersion which exhibits improved capability of being applied and can form an electrode having a high void ratio. |