BATTERY UNIT
A battery unit having a flat battery and a substrate available as a power source for a device provided with terminals to be in contact with an exterior can and a sealing can of a flat battery is obtained. The battery unit (1) includes a flat battery (2) having a cylindrical positive electrode can (1...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | A battery unit having a flat battery and a substrate available as a power source for a device provided with terminals to be in contact with an exterior can and a sealing can of a flat battery is obtained. The battery unit (1) includes a flat battery (2) having a cylindrical positive electrode can (10) with a bottom and a cylindrical negative electrode can (20) with a bottom that covers an opening side of the positive electrode can (10) and having a side wall of the positive electrode can (10) on the opening side fitted to an outer circumferential surface of a side wall of the negative electrode can (20) and a substrate (61) provided on a flat surface of one of the negative electrode can (20) and the positive electrode can (10) and mounted with circuit components (62) thereon. The other of the negative electrode can (20) and the positive electrode can (10) that has a flat surface on an opposite side to the substrate (61) in a thickness-wise direction of the flat battery (2) serves as an external terminal for one of a positive electrode and a negative electrode. |
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