| CPC H01M 50/503 (2021.01) [H01M 50/211 (2021.01); H01M 50/516 (2021.01)] | 11 Claims | 

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               1. A battery module comprising: 
            a battery cell stacked body where a plurality of battery cells are stacked, wherein the plurality of battery cells include a plurality of electrode leads; 
                a bus bar frame including a front bus bar frame and a rear bus bar frame, the front bus bar frame formed on a front side of the battery cell stacked body and the rear bus bar frame formed on a rear side of the battery cell stacked body, the front side and the rear side being disposed opposite to one another such that the battery cell stacked body is disposed therebetween; and 
                a first bus bar formed at an outer side of the bus bar frame with reference to the battery cell stacked body and arranged to be electrically connected with an external power source, the bus bar frame being disposed between the first bus bar and the battery cell stacked body, 
                wherein the bus bar frame comprises a plurality of fixing portions that protrude from the bus bar frame to cover an end of the first bus bar, 
                wherein the first bus bar is a flat plate having a slit with one open end, so as to define a u-shape, and 
                wherein at least one of the plurality of electrode leads extend through the slit. 
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