Detection method for Lamination lithium ion battery

A technology of lithium-ion batteries and detection methods, applied in image data processing, instruments, calculations, etc., to achieve the effect of improving time complexity and accuracy, and improving efficiency and accuracy
CN104091322AActive Publication Date: 2014-10-08WUXI UNICOMP TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUXI UNICOMP TECH
Publication Date
2014-10-08

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Abstract

The invention discloses a detection method for a lamination lithium ion battery. The method includes the following steps: carrying out statistics of a variance of each line of a lamination battery gray level image in the horizontal direction and carrying out threshold processing on a statistical result so as to determine a calculated characteristic area; carrying out angular point detection on an image of the determined characteristic area and calculating the similarity of each point of the image and calculating a direction change intensity and according to the direction change intensity, setting a threshold to filter image angular point positions, that is the angular point detection; through statistics of a maximum occurrence probability of the angular points in the horizontal direction, classifying the angular points; and after a position of a maximum occurrence probability of anode and cathode angular points is determined, using the maximum position as a reference point to screen anode and cathode piece angular points and then carrying out three-cubic fitting after the screening and carrying out compensation processing on a position at which opening is larger during the fitting. The detection efficiency and precision of the lamination lithium ion battery are improved.
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Description

technical field

[0001] The invention relates to the field of lithium battery detection, in particular to a detection method for laminated lithium ion batteries. Background technique

[0002] The global lithium-ion battery industry for consumer electronics was pioneered by Japan. After entering 2005, China's industry rose, and China, Japan and South Korea emerged as a three-point world. In 2011, the "Energy Conservation and New Energy Vehicle Development Plan" issued by the State Council mentioned that in the next 10 years, the state will invest 100 billion yuan to support the development of the new energy industry, and lithium power batteries will develop rapidly in the next few years. According to the research report on the development of China's battery industry, driven by the enthusiasm for new energy batteries, the cumulative output of lithium-ion batteries nationwide in 2011 was 2.955 billion, a year-on-year increase of 18.14%.

[0003] However, the repeated fires and ...

Claims

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