| 摘要 |
Disclosed is an electricity storage device comprising: an electrolyte layer (3); and a positive electrode (2) and a negative electrode (4) that are provided so as to sandwich the electrolyte layer. Both the positive electrode (2) and the negative electrode (4) are electrodes made of a composite including at least (A) and (B) described below, wherein (B) is fixed within the composite. Thus, an excellent output density per weight and excellent cycle characteristics are obtained, and a high energy density per weight is obtained. (A) An electrode active material having an electroconductivity that changes according to the insertion/desorption of ions. (B) A polycarboxylic acid. |
