Electrochemical element electrode binder, electrochemical element electrode particle composite, electrochemical element electrode, electrochemical element, and method for producing electrochemical element electrode

摘要

The purpose of the present invention is to produce a slurry at the time of electrode layer formation, so that the productivity of the electrode is excellent, and since a water-soluble polymer component is not required as a dispersant, the resistance can be reduced and the thickness of the obtained electrode can be reduced. It is an object to provide a binder for an electrochemical element electrode having excellent accuracy and flexibility, an electrode composite using the binder, an electrode, an electrochemical element, and a method for producing the electrochemical element. The present invention comprises a polymer having a glass transition temperature of 35 to 80 ° C., a primary particle volume-based D50 average particle size of 80 to 1000 nm, a volatile content at 120 ° C. of less than 1% by weight, and a powdery composite This relates to a binder for an electrochemical element electrode, which is a powdered composite particle.