Abstract: A battery module includes number of single batteries each single battery having a shell and a cap cover; an anode housing and a cathode housing both having a number of receiving barrels; an anode current collecting board posited on the anode housing having a number of fusible conductive plates; a repairable electrode board positioned on the anode current collecting board; a number of connection member each received in a respective receiving barrel of the cathode housing; an cathode current collecting board posited on the cathode housing; and a number of repairable conductive plates. One end adjacent to the cap cover of each single battery is received in a receiving barrel and the cap cover is soldered to and electrically connected a respective fusible conductive plate. Each repairable conductive plate is configured to be replaced a fusible conductive plates and soldered to the repairable electrode board.

Abstract: A power battery pack, includes first housing includes a first main portion having a first fixing surface and a first connection surface; a number of first receiving portions extending upwardly from the first fixing surface; a number of first limiting portions extending upwardly from the first connection surface; a second housing comprising a second main portion having a second fixing surface and a second connection surface; a number of second receiving portions extending upwardly from the second fixing surface; a number of second limiting portions extending upwardly from the second connection surface; a number of single batteries; two ends of each single battery being received in a first receiving portion and a respective second receiving portion; two electrode board assemblies respectively received in a first limiting portion; and a number of intermediate board assemblies each received in a first limiting portion or a second limiting portion.