A heat exchange plate includes a first side plate (1) and a second side plate (2) arranged opposite to the first side plate. The first side plate (1) is of an aluminum structure or an aluminum alloy structure. A groove (3) for forming a heat exchange chann...

A battery includes a battery shell, a cell assembly, and an electrolyte. The electrolyte and the cell assembly are disposed in a containing space of the battery shell, and the electrolyte remaining in the containing space is a free electrolyte. A volume of...