NOVELTY - A connecting terminal (103) and a connecting terminal (104) are extended on the side from the bottom face of the outer side of the exterior case (102). The material of electroconductive patterns (112,113) is carbon black or titanium carbide. The electroconductive patterns (112,113) are electrically connected with positive electrode and connecting terminal (103), and sealing board (101) and connecting terminal (104), respectively.    USE - Electrochemical cell e.g. non-aqueous electrolyte battery and electrical double layer capacitor. Uses include but are not limited to backup power supply of timepiece or semiconductor memory, electronic apparatus, control circuit of solar timepiece, power supply for motor drive, power supply of electric vehicle, auxiliary electrical storage unit of energy conversion and storage system.    ADVANTAGE - Since the carbon material or electroconductive ceramics is used, the degradation of positive electrode collector at the time of charging or discharging, decrease in capacity of cell and increase in internal resistance are reduced. The distortion by sealing board thermal expansion and contraction is not generated at the time of welding of cell. Leaking problem is avoided and performance degradation of the cell by permeation of water is suppressed. Since connection lead for connection with the external circuit of negative electrode and positive electrode is set as electroconductive pattern wiring, pattern formation of the connecting terminal directly in the exterior case bottom surface can be performed easily. Attachment of a tab terminal, etc. is made unnecessary, and size and thickness reduction can be enabled. High capacity cell can be obtained.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the electrochemical cell. (Drawing includes non-English language text)    Sealing board (101)    Exterior case (102)    Connecting terminals (103,104)    Conductive adhesive (109)    Electroconductive patterns (112,113)