ELECTRODE PLATE, LAYERED ELECTRODE GROUP, AND BATTERY

摘要

A layered electrode group according to the present invention includes a positive electrode plate, a negative electrode plate, and a separator. The positive electrode plate is formed into a substantial U-shape by disposing two active material retaining portions retaining the positive active material opposite to each other. The negative electrode plate is formed into a substantial U-shape by disposing two active material retaining portions retaining the negative active material opposite to each other. The positive electrode plate and the negative electrode plate are layered such that at least one active material retaining portion at the positive electrode plate is sandwiched between two active material retaining portions at the negative electrode plate.

主权项

1. A layered electrode group comprising:
a positive electrode plate retaining a positive active material in a positive electrode current collector; a negative electrode plate retaining a negative active material in a negative electrode current collector; and a separator interposed between the positive electrode plate and the negative electrode plate, wherein the positive electrode plate is formed into a substantial U-shape by disposing two active material retaining portions retaining the positive active material opposite to each other, the negative electrode plate is formed into a substantial U-shape by disposing two active material retaining portions retaining the negative active material opposite to each other, and the positive electrode plate and the negative electrode plate are layered such that at least one active material retaining portion at either one of the positive electrode plate and the negative electrode plate is sandwiched between two active material retaining portions at the other one of the positive electrode plate and the negative electrode plate.