Abstract: The present disclosure provides a side plate and a battery module. The side plate is applied to the battery module. The side plate includes: a first plate, a second plate and a connection portion. The first plate includes a first free end at one side in a height direction, the second plate includes a second free end at the same side in the height direction, the first free end and the second free end abut against each other. The connection portion is located at the other side opposite to the first free end and the second free end in the height direction, and is configured to connect the first plate and the second plate, and enclose a hollow cavity with the first plate and the second plate.

Abstract: A digital pre-distortion method for a multiband signal, an electronic device and a non-transitory computer-readable storage medium are disclosed. The digital pre-distortion method may include: determining a possible power amplifier distortion according to configuration of a signal issued by a cell; selecting a basis function of pre-distortion according to the possible power amplifier distortion; solving, according to a pre-collected reference multiband signal and a corresponding feedback signal, the selected basis function to obtain a pre-distortion parameter; and processing an input multiband signal according to the selected basis function and the pre-distortion parameter to generate a pre-distortion signal.

Abstract: The disclosure provides a battery module, including: two or more battery units, wherein each battery unit includes a battery core including two end portions opposed in a length direction thereof, and the two or more battery units are arranged side by side in a thickness direction of the battery core, in two adjacent battery units, a first gap is formed between two battery cores that are close to each other, and the first gap extends from one of the two end portions along the length direction, and in a direction from the two end portions to a center of the battery core, a dimension of the first gap gradually decreases along the thickness direction; and a cushion pad which is provided between the two adjacent battery units, and the cushion pad is disposed in the first gap and is in contact with the end portion(s) of the battery core.

Abstract: The present disclosure provides a side plate and a battery module. The side plate is applied to the battery module. The side plate includes: a first plate, a second plate and a connection portion. The first plate includes a first free end at one side in a height direction, the second plate includes a second free end at the same side in the height direction, the first free end and the second free end abut against each other. The connection portion is located at the other side opposite to the first free end and the second free end in the height direction, and is configured to connect the first plate and the second plate, and enclose a hollow cavity with the first plate and the second plate.