EXPANDABLE SPLIT TYPE BATTERY DEVICE

摘要

The present invention discloses an expandable split type battery device (1, 1a). Said battery device (1, 1a) comprises a first battery unit (10) and a second battery unit (20), the first battery unit (10) comprises a first battery core (11) and a first cover (13) electrically connected with the first battery core (11), a first joining component (131,132) is formed in the edge of the first cover (13), and has a first electrode (130); the second battery unit (20) is located in one side of the first battery unit (10), and comprises a second battery core (21) and a second cover (23) electrically connected with the second battery core (21), a second joining component (231) is formed in the edge of the second cover (23), and has a second electrode (230); the second joining component(231) assembles with the first joining component (131,132) to electrically connect the first electrode (130) and the second electrode (230) together. Said battery device (1, 1a) can add or remove the battery unit (10, 20) according to need, so as to achieve the purpose of easy assembly and maintenance.