A roll for a machine for producing and/or processing a fibrous web, such as a paper, board or tissue web, has a circular-cylindrical main roll body. A roll cover covers the circumferential surface of the main roll body, at least in some segments. A pressure- and/or temperature-sensitive sensor is embedded in the roll cover. The sensor connects to an electrical and/or optical signal line. The signal line has a first line segment inside the roll. A second line segment extends substantially outside the roll and is connectable to a signal excitation and/or signal processing unit at one end. An electrical and/or optical rotational connection connects the first and second line segments to allow the line segments to be rotated relative to one another. When the roll is rotated, the first line segment rotates together with the main roll body. The second line segment does not have to follow the rotation.

An electrode sheet manufacturing device includes a pair of rolls that press an electrode active material layer formed on an electrode sheet, a press pressure adjusting mechanism that adjusts a press pressure of the pair of rolls, a temperature sensor that detects a surface temperature of at least one of the pair of rolls, and a controller. The controller is configured to adjust the press pressure, based on the surface temperature of the at least one of the pair of rolls detected by the temperature sensor.