| abstract |
An electrochemical cell with high reliability and high capacity is provided. [Solution] In an electrochemical cell having a positive electrode 7, a negative electrode 6, an electrolyte 10, a concave container 1 for housing these, and a terminal penetrating from the inside of the concave container 1 to the outside, the concave container 1 is formed in a square plate shape. The first bottom portion 1a1, the square plate-like second bottom portion 1a2, and the square frame-like wall portion 1b are laminated, and the terminal is provided from the inner layer of the concave container 1 to the bottom surface of the storage chamber. It has an extended via line L2 and an interlayer line L1 connected to the via line L2. [Selection] Figure 5 |