ELECTROCHEMICAL CELL WITH TERMINAL, AND METHOD OF MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an electrochemical cell which reduces the contribution of resistance at external terminals in the internal resistance of the cell, is easily and firmly connected to a circuit substrate, has heat resistance at a high temperature and durability, and attains surface mounting by automatic reflow mounting with reduced internal resistance.SOLUTION: The electrochemical cell with the terminals includes: a single cell with a structure where a power generation element 16 and an electrolyte E are stored in metallic sealed housings 2 having terminals 3 which are fixed by insulation, and positive and negative electrodes of the power generation element 16 are electrically connected to the terminals 3 or the housings 2; a fixing terminal 6 connected to the housing 2; and external terminals 5 connected to the power generation element 16 via the terminals 3. Each external terminal 5 has a multilayer structure including: first materials 51 being the same kind of metal as the terminal 3; and second materials 52 with resistivity lower than that of the first materials 51. The automatic reflow mounting is attained in the electrochemical cell with the terminals.