Nissan Motor Company Limited

Isao Aramaki

Keisuke Noda

Yutaka Suzuki

Yoshitaka Usui

Teruyuki Ishiwata

Katsuhide Nagahashi

A detection method in which light is irradiated on a bagged electrode, and an electrode is disposed inside of a bag-shaped separator for detecting breakage of the separator, the method includes capturing an image by irradiating the light onto the bagged electrode so that a first portion in which the light has been transmitted through n layers of the separator, and a second portion in which the light has been transmitted through equal to or less than n&#x2212;1 layers of the separator, will have mutually different brightness levels, while capturing an image of the bagged electrode, detecting the first portion from the brightness of the image that is obtained by capturing the bagged electrode, and determining a breakage of the separator, based on the distance between edges of the first portion, and of an electrode portion where the light does not pass through.

Detection method and detection device

A device including a detectorfor detecting position of a positive electrodeas a first electrode in terms of a packaged electrode having a bag-shaped separatorin which the positive electrode is provided, and stacking unitandfor stacking the positive electrodeas the first electrode on a negative electrodeas a second electrode having a different polar characteristics from that of the positive electrodeas the first electrode on the basis of the position of the positive electrodeas the first electrode thus detected.

Electrode stacking device and electrode stacking method

An electrode position detection device detects a relative positional relationship between a positive electrode and a negative electrode, when a packaged electrode having the positive electrode disposed inside a bag-shaped separator and the negative electrode are alternately stacked. The device includes a light source, a camera, and a detector. The light source projects light that penetrates the separator and is reflected by the electrodes. The camera receives the light reflected by the positive electrode when the packaged positive electrode is on the uppermost layer and receives the light reflected by the negative electrode when the negative electrode is on the uppermost layer. The detector detects the relative positional relationship between the electrodes based on the results of light reception by the camera when the packaged positive electrode is on the uppermost layer and the results of light reception by the camera when the negative electrode is on the uppermost layer.

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Machida, Japan

Isao Aramaki