| 摘要 |
To provide a battery electrode substrate sheet capable of reducing a waste part, in which a defect part is included, of an electrode active material coating film coated on a collector. A battery electrode substrate sheet includes a strip-shaped collector 101, an electrode active material coating film 103 formed on the collector in a longitudinal direction thereof, and an insulating protective film 107 formed on an electrode active material non-coating surface of the collector so as to extend along the coating film in the longitudinal direction thereof. A defect sign part 105 that indicates a portion at which a defective part 104a of the coating film exists is formed on the insulating protective film 107. |
