ELECTRICITY STORAGE DEVICE, LITHIUM ION CAPACITOR, AND NEGATIVE ELECTRODE FOR LITHIUM ION CAPACITOR

摘要

An electrical storage device includes a positive electrode, and a negative electrode having a negative electrode active material layer containing a fluorine-containing acrylic binder, the negative electrode active material layer having a density of not less than 0.75 g/cc and not more than 1.10 g/cc.