초록 ▼

The battery module comprises a plurality of cells encased in prismatic cell cases having short lateral walls and long lateral walls coupled together as one piece. Each of the cells accommodates therein a group of electrode plates and liquid electrolyte, wherein collector plates are connected respect

The battery module comprises a plurality of cells encased in prismatic cell cases having short lateral walls and long lateral walls coupled together as one piece. Each of the cells accommodates therein a group of electrode plates and liquid electrolyte, wherein collector plates are connected respectively to the groups of positive and negative electrode plates at opposite lateral edges thereof. Connection holes are formed at upper edge portions of the short lateral walls of the cell cases, and the collector plates are formed with connection bosses that fit into the connection holes, so that the connection bosses of the collector plates in neighboring cells are abutted each other and welded together, whereby two adjacent cells are connected to each other.

대표청구항 ▼

1. A rechargeable battery comprising:a prismatic case having short lateral walls and long lateral walls; a group of electrode plates encased in said prismatic case together with a liquid electrolyte; a positive electrode collector plate and a negative electrode collector plate attached to the group

1. A rechargeable battery comprising:a prismatic case having short lateral walls and long lateral walls; a group of electrode plates encased in said prismatic case together with a liquid electrolyte; a positive electrode collector plate and a negative electrode collector plate attached to the group of electrode plates at long lateral opposite ends thereof; a connection hole formed in the short lateral walls of the prismatic case; and a connection boss formed in said positive electrode collector plate and the negative electrode collector plate such as to fit into said connection hole.