Prismatic battery module and method for manufacturing the same

A method for manufacturing a prismatic battery module comprising the steps of:

• connecting a plurality of prismatic cell cases with each other through separation walls, at least part of which is formed of an electroconductive connector, thereby form a prismatic battery case;
• forming an electrode plate group having lead portions of positive and negative electrode plates by projecting one side portion of the positive electrode plates and one side portion of the negative electrode plates in opposite directions;
• placing the electrode plate group in each of the cell cases to connect the lead portions on either side of the electrode plate group to the respective electroconductive connectors arranged on both sides of the cell case;
• placing an electrolyte in the cell cases;
• and
• closing an opening of each cell case with a lid.

A method for manufacturing a prismatic battery module comprising the steps of:

• forming a prismatic battery case having a space in which a plurality of cell cases are to be formed in a row;
• forming an electrode plate group having lead portions of positive and negative electrode plates projecting on either side thereof;
• connecting the lead portions of the positive and the negative electrode plates of the electrode plate groups with each other through electroconductive connector plates;
• placing the plurality of electrode plate groups, which are connected with each other through the electroconductive connector plates, in the prismatic battery case and providing sealing between peripheral edges of the electroconductive connector plates and an inner surface of the prismatic battery case;
• placing an electrolyte in the cell cases defined by the electroconductive connector plates;
• and
• closing an opening of each cell case with a lid.