| abstract |
An object is to provide an aluminum plate which has favorable adhesiveness and coating properties to active materials and has a high strength and a method for manufacturing an aluminum plate. An average opening diameter of the plurality of through holes is 0.1 µm or more and 100 µm or less, an average opening ratio of the plurality of through holes is 2% or more and 40% or less, among the plurality of through holes, a percentage of through holes having an opening diameter of 5 µm or less is 40% or less, among the plurality of through holes, a percentage of through holes having an opening diameter of 40 µm or more is 40% or less, and, among the plurality of through holes, a percentage of through holes in which a ratio S 1 /S 0 of an area S 1 of the through holes to an area S 0 of a circle having a long axis of the through hole as a diameter is 0.1 or more and 1 or less is 50% or more. |