Electrode and power storage device comprising said electrode

摘要

This electrode is provided with a thin metal sheet and an active substance layer containing, on the surface of the thin metal sheet, multiple active substance particles of a prescribed average particle diameter. The surface of the thin metal sheet includes a forming region where the active substance layer is located. In the forming region, the thin metal sheet has a depressed section in the surface. A portion of the active substance particles is present in at least a part of the depression, and the average distance between the centers of two neighboring particles of these active substance particles present in at least a part of the depression is 60-98% of the aforementioned average particle diameter.

主权项

1. A positive electrode comprising:
a thin metal plate; and an active material layer on a surface of the thin metal plate, wherein the active material layer includes a plurality of active material particles that have a predetermined average particle diameter, wherein the surface of the thin metal plate includes a formation region where the active material layer is located, the surface of the thin metal plate includes cavities in the formation region, some of the active material particles are at least partially received in the cavities, and among the active material particles that are at least partially received in the cavities, an average distance between centers of two adjacent ones of the active material particles is 60% or greater and 98% or less of the average particle diameter.