Power supply apparatus

摘要

A power supply apparatus includes a formed article having two or more separate accommodating cavities and an electrode group that comprises a rolled up laminate and is accommodated in each of the accommodating cavities, the laminate composed of a cathode and an anode, each having a current collector and mixture layers disposed on the current collector, and a separator sandwiched between the cathode and the anode. An electrolytic solution is accommodated in each of the accommodating cavities, the electrolytic solution, and the anode or the cathode contact the formed article.

主权项

1. A power supply apparatus comprising:
a formed article having two or more accommodating cavities; an insulating tape; an electrode group that comprises a rolled up laminate and is accommodated in each of the accommodating cavities, the laminate comprises a cathode and an anode, each having a current collector and mixture layers disposed on the current collector, and a separator sandwiched between the cathode and the anode, the electrode group having a column shape, and the anode current collector or the cathode current collector defining a circumferential surface of the electrode group; a side face of only one of the end parts of the column of the electrode group being covered by the insulating tape; and the insulating tape extends into each of the accommodating cavities; and electrolytic solution accommodated in each of the accommodating cavities, wherein both of the electrolytic solution, and the anode or the cathode contact the formed article, and the covered side face of one end part of the column of the electrode comprising a forward end of the electrode group in an insertion direction of the electrode group into an accommodating cavity of the formed article.