Analysis apparatus and analysis method
First 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.
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Accused Products
Abstract
Provided are an analysis apparatus and an analysis method which are capable of recognizing a local state change of an internal structure of a secondary battery. The analysis apparatus includes: an observation cell that houses a secondary battery; a charging and discharging controller that controls charging and discharging of the secondary battery; an image pickup device that captures color images of the secondary battery at a predetermined time interval; and a charging and discharging data detection unit that acquires charging and discharging data on the secondary battery during charging and discharging. Color image signals output from the image pickup device and charging and discharging data signals output from the charging and discharging data detection unit are supplied to a signal processing device. The signal processing device outputs a unit that temporally links time-series color image signals and time-series charging and discharging data signals, and designated analysis data.
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Citations
9 Claims
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1. An apparatus for charging and discharging of a secondary battery by using a color image, the apparatus comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for charging and discharging of a secondary battery by using a color image, the method comprising:
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charging and discharging the secondary battery under a predetermined condition by using a charging and discharging controller; projecting illumination light toward the secondary battery through a transparent window, of an observation cell that includes the transparent window and houses the secondary battery, from a direction parallel to an extending direction of a current collector and an active material layer of the secondary battery, and capturing 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, during charging and discharging and forming time-series color image data, by using a color image pickup device; and outputting, by a monitor displaying the color image, 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. - View Dependent Claims (8, 9)
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Specification