BINDER FOR ELECTRICAL STORAGE DEVICE ELECTRODE

摘要

INDUSTRIAL APPLICABILITY The present invention provides a battery having a wide thermal energy stability from a high-temperature environment to a low-temperature environment when used as a binder used in an electrode of an electrical storage device, a small amount of irreversible capacity of the obtained battery, It is an object of the present invention to provide a binder for a battery device electrode capable of producing a battery. In addition, it is possible to provide a capacitor device electrode capable of producing a high capacity battery even when the dispersibility and adhesion of the active material are excellent, the flexibility of the obtained electrode can be improved, the durability to the electrolyte is high, And to provide a binder. It is also an object of the present invention to provide a composition for a capacitor electrode, a capacitor electrode, and a battery device using the binder for the capacitor electrode. The present invention relates to a binder used for an electrode of an electrical storage device, wherein the binder contains a polyvinyl acetal resin, and the polyvinyl acetal resin has a meso / ratohem ratio of the acetal ring structure of 10 or more, Is 30 to 60 mol%.