| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrochemical cell with lead terminals which has small occupation area on a mounting substrate, and is easy to be mounted and highly reliable. SOLUTION: A lead terminal A installed on a cell surface facing a circuit board surface upon being mounted on the circuit board is smaller than a quadrangle with which an outer circumference of the electrochemical cell is inscribed, and installed substantially inside it. Another lead terminal B installed on a cell surface on the opposite side to the circuit board surface is arranged substantially in a diagonal direction of the circumscribing quadrangle and also has its connection portion with the circuit board positioned at a corner portion of the circumscribing quadrangle or a similar enlarged quadrangle thereof, and is shaped to be a vertical isosceles triangle having a base perpendicular to the diagonal or to be within it, thereby decreasing/reducing the effective occupation installation area of the electrochemical cell with the lead terminals on the board. COPYRIGHT: (C)2011,JPO&INPIT
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