Title:
MEASUREMENT METHOD AND APPARATUS FOR WINDING ELECTRODE ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2023/028923
Kind Code:
A1
Abstract:
A measurement method and apparatus for a winding electrode assembly (102). The measurement method comprises: acquiring pixel equivalent parameters corresponding to the ith circle of a winding reference electrode assembly (1'), the pixel equivalent parameters comprising a first pixel equivalent of a first anode pole piece (11') and a second pixel equivalent of a first cathode pole piece (12') of the reference electrode assembly (1'); during the process of winding the ith circle of an electrode assembly to be measured (1), capturing an image of a second anode pole piece (11) of the electrode assembly to be measured (1), obtaining from the image a first pixel coordinate of a width edge of the second anode pole piece (11), capturing an image of a second cathode pole piece (12) of the electrode assembly to be measured (1), and obtaining from the image a second pixel coordinate of a width edge of the second cathode pole piece (12); and, according to the first pixel equivalent and the second pixel equivalent corresponding to the ith circle of the reference electrode assembly (1'), as well as the first pixel coordinate and the second pixel coordinate of the ith circle of the electrode assembly to be measured (1), calculating, along the winding axis (K), the excess width Wi of the second anode pole piece (11) in the ith circle of the electrode assembly to be measured (1) relative to the second cathode pole piece (12).
Inventors:
XIE JINTAN (CN)
CHEN JIWEI (CN)
WANG XUMING (CN)
CHEN JIWEI (CN)
WANG XUMING (CN)
Application Number:
PCT/CN2021/116046
Publication Date:
March 09, 2023
Filing Date:
September 01, 2021
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
G01N23/04; H01M10/0587
Foreign References:
| CN109786853A | 2019-05-21 | |||
| CN105987919A | 2016-10-05 | |||
| CN104197841A | 2014-12-10 | |||
| CN106611879A | 2017-05-03 | |||
| CN108414523A | 2018-08-17 | |||
| JP2018087740A | 2018-06-07 | |||
| JP2006145298A | 2006-06-08 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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