ELECTRODE PLATE, ELECTRODE BODY, BATTERY, AND METHOD FOR MANUFACTURING ELECTRODE PLATE

A cylindrical battery, which is an example of an embodiment of the present invention, comprises an electrode body including a positive electrode plate and a negative electrode plate as electrode plates. Each electrode plate comprises a core body and a mixture layer formed on the core body. An identification marking is formed on a surface of the mixture layer. The identification marking is covered with, for example, tape.