| 摘要 |
PROBLEM TO BE SOLVED: To provide: a binder for a secondary battery which achieves good adhesiveness between a current collector and an electrode layer and good dispersibility of the binder in the electrode layer, and allows the electrode layer to have good windability; and an application thereof.SOLUTION: A binder composition for a secondary battery electrode comprises carboxymethyl cellulose or a salt thereof, and polyacrylic acid or a salt thereof. A composition for an electrode layer of a secondary battery comprises the binder composition and an active material. A secondary battery electrode comprises an electrode layer formed from the composition for an electrode layer, and a current collector. A secondary battery comprises the electrode. A method for manufacturing a secondary battery comprises: the step of forming a laminate of a multilayer structure including a pair of electrodes, at least one of which consists of the secondary battery electrode described above, and a separator located between the paired electrodes and impregnated with a nonaqueous electrolyte, or the step of forming the laminate, followed by winding the laminate; and the step of putting the laminate in a container. |
