| 摘要 |
A battery module is provided to improve the connection structure of secondary batteries, thereby minimizing the resistance generated at the their connection part. A battery module(100) comprises a first secondary battery(105) and a second secondary battery(107) which have a safety unit, respectively; and a first connection electrode cap(160) which is arranged between the first secondary battery and the second secondary battery, wherein the first connection electrode cap comprises a cap base(162) arranged on the safety unit of the first secondary battery, a joining part(164) projected from the inner part far apart from the outer part of the cap base toward the second secondary battery, and an accommodation part(166) accommodating the second secondary battery and connected with the joining part. |
