Patent ID: 9638729
Date: 2017-05-02
CPC Classifications: G01R,H01M,Y02E,Y02P,Y02T

Claim:
1. An apparatus for charging and discharging of a secondary battery by using a color image, the apparatus comprising: an observation cell that includes a transparent window and houses the secondary battery; a charging and discharging controller that controls charging and discharging of the secondary battery; a color image pickup device that projects illumination light toward the secondary battery through the transparent window from a direction parallel to an extending direction of a current collector and an active material layer of the secondary battery, captures a color image of a cross-section of the active material layer of the secondary battery in a direction from a cathode to an anode of the secondary battery through the transparent window, and outputs time-series color image data; and a signal processing device includes an output unit, including a monitor displaying the color image, that outputs, as analysis data, color image data in a moving image format, or two-dimensional color image data associated with an elapsed time of charging and discharging.