Packaging device and packaging method

A packaging device, comprising:

• a conveying mechanism configured to convey a battery in a first direction, wherein prior to the battery being conveyed to a position where a packaging mechanism is disposed, a protective film is attached to and extends beyond each of two large-sized side surfaces of the battery;
• the packaging mechanism comprising a driving assembly, two brackets spaced apart from each other, and two pressing members arranged parallel to each other, wherein the two pressing members are rotatably mounted at the two brackets, respectively, wherein the two brackets are connected to the driving assembly, and wherein the driving assembly is configured to drive the two pressing members to move towards the battery and press a part of the protective film extending beyond the large-sized side surface of the battery against a top surface, a bottom surface, or two small-sized side surfaces of the battery;
• and
• a guide mechanism, wherein the packaging mechanism is mounted at the guide mechanism, and wherein the guide mechanism is configured to:
• prior to the battery being conveyed to the position where the packaging mechanism is disposed, drive the packaging mechanism to move towards the battery in a second direction;
• and
• when the battery is conveyed to the position where the packaging mechanism is disposed, drive the packaging mechanism to move in the first direction same as the battery and synchronously with the battery, the first direction being different from the second direction.