Battery inspection apparatus and battery inspection method

Abstract

The battery inspection apparatus comprises: a transfer unit configured to support and move an electrode sheet including an insulating coating portion formed at a boundary between an electrode active material layer and a non-coated portion; an image acquisition unit configured to record the insulating coating portion and including a first illumination for irradiating light of a predetermined wavelength band to the electrode sheet and a second illumination for irradiating white light; and a controller configured to acquire an image obtained from the image acquisition unit, derive a width of an insulating coating overlap portion in which the insulating coating portion and the electrode active material layer are overlapped, and detect a surface defect.

Dependencies are inferred from the claim text.