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Inspection apparatus

A technology for inspection devices and detection components, applied in measuring devices, instruments, using wave/particle radiation, etc., can solve problems such as product quality degradation and short circuit

Inactive Publication Date: 2013-10-30
CKD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the winding deviation occurs, it will cause a short circuit, etc., and there is a danger of reducing the quality of the product

Method used

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Examples

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Embodiment Construction

[0046] One embodiment will be described below with reference to the drawings. First, the structure of a lithium-ion battery element as an electrical element (storage element) inspected by the inspection device of the present invention will be described.

[0047] picture image 3 As shown, a lithium ion battery element 1 (hereinafter simply referred to as "battery element 1") is formed by superimposing a strip-shaped positive electrode foil 4 and a negative electrode foil 5 with two strip-shaped separators 2 and 3 interposed therebetween. Manufactured in a coiled state. image 3 It is a cross-sectional view of the battery element 1 taken along the radial direction (a plane perpendicular to the winding axis H), and here, for convenience of description, the separators 2, 3 and the electrode foils 4, 5 are shown in a manner that they are spaced apart from each other.

[0048] The separators 2 and 3 are made of an insulator such as polypropylene (PP) in order to prevent the diffe...

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PUM

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Abstract

The invention provides an inspection apparatus, which can improve inspection precision when the position of an electrode foil is offset. The inspection apparatus (10) comprises a transmitter (13) that transmits a battery element (1); an X-ray irradiation device that irradiates X ray to the battery element (1); and an X-ray sensor camera (15) that shoots X ray transmission image of the battery element (1) irradiated by X ray. Therefore, on one hand, the direction of a reel line is used as a transmit direction, and the battery elements (1) are continuously transmitted along horizontal direction; on the other hand, the battery elements (1) are irradiated by fan-shaped beam-like X ray from vertical above, and the battery element (1) is shot by transmitted one-dimension X ray to obtain a whole X ray transmission image of the battery element (1). After that, winding offset of the battery element (1) is inspected based on the X ray transmission image.

Description

technical field [0001] The present invention relates to an inspection device for inspecting battery components and the like using X-rays. Background technique [0002] As one type of electrical components, battery components used as secondary batteries such as lithium ion batteries are known. This battery element is manufactured in such a manner that, for example, a positive electrode foil coated with a positive electrode active material and a negative electrode foil coated with a negative electrode active material are superimposed with two separators formed of insulating members interposed therebetween. state to wind up. [0003] In such a battery element, there is a possibility that winding misalignment may occur between the positive electrode foil and the negative electrode foil during winding. If winding misalignment occurs, a cause such as a short circuit may occur, and there is a risk of lowering product quality. [0004] In this way, after the battery element is wo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/04G01B15/00
Inventor 石榑克范
Owner CKD
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