BATTERY PACK AND METHOD FOR MANUFACTURING SAME

摘要

The present invention relates to a battery pack advantageous for integration and miniaturization, and the battery pack includes: a bare cell having a cap plate of a first polarity with a concave part forming a step downward, and an electrode terminal of a second polarity; a battery protective circuit package electrically connected to the electrode terminal and the cap plate with at least a part thereof arranged in the concave part; and a filling material for filling at least a part of the concave part so as to seal at least a part thereof and to fix the battery protective circuit package, wherein said battery protective circuit package includes a lead frame consisting of a plurality of isolated leads, a basic package for including protective circuit components on the lead frame, and a sealing material for sealing the protective circuit components by exposing a part of the lead frame, the filling material and sealing material being formed by injecting a molten resin.