Connection plate for battery terminals and method for manufacturing connection plate for battery terminals

A method for manufacturing a connection plate for battery terminals (2, 402), comprising steps of:

• providing a first hole (30) into which a first battery terminal (1a) made of first metal is inserted and a second hole (31) into which a second battery terminal (1b) made of second metal different from the first metal is inserted in a plate-like base (3) made of metal identical to the first metal;
• preparing a plate-like member (104, 304) constituted by at least a first layer (40) made of metal identical to the second metal and a second layer (41) made of third metal different from the first metal and the second metal;
• and
• forming a battery terminal connection portion (4, 404) including a hole for connection (42) into which the second battery terminal is inserted and a flange portion (4b, 404c) arranged on at least one of an upper surface (3a) and a lower surface (3b) of the base, fitted into an inner peripheral surface (31a) of the second hole of the base by press working in a state where a side of the second layer of the plate-like member is arranged to cover the second hole of the base and a part of the upper surface of the base.