Patent ID: 7297439

Claim:
A battery comprising: a battery cell having a plurality of sides provided with an electrode terminal protruding from at least one of said sides; a circuit board having electronic components attached along at least two of said sides of said battery cell; and a resin mold section at least partially covering said circuit board and joined to said circuit board and said battery cell; wherein said circuit board comprises at least two rigid base sections having wiring, and a flexible base section connected between said two rigid base sections and is more flexible than said two rigid base sections; wherein one said rigid base section is provided with a pierced aperture and an electrically conductive material; wherein said pierced aperture pierces said rigid base section in the thickness direction; wherein one said rigid base section is positioned on one side of said battery cell and said electrode terminal of said one side is fitted into said pierced aperture; and another said rigid base section is positioned on another side adjacent to said one side of a battery cell; wherein said electrically conductive material is electrically connected to said wiring of one said rigid base section and electrically connected to said electrode terminal provided in said pierced aperture; wherein a second rigid base section is provided with a pierced aperture and an electrically conductive material; and wherein said electrically conductive material of said second rigid base section is electrically connected to said wiring of said second rigid base section and electrically connected to said battery cell.