Electrode manufacturing apparatus

The electrode manufacturing apparatus addresses film thickness inconsistencies by determining a representative value from top n points and adjusting flow path volumes, ensuring precise coating application despite localized irregularities.

JP7874837B2Active Publication Date: 2026-06-17TOYOTA INDUSTRIES CORP +1
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
TOYOTA INDUSTRIES CORP
Filing Date
2022-11-16
Publication Date
2026-06-17

AI Technical Summary

Technical Problem

Existing electrode manufacturing processes face challenges in maintaining accurate film thickness control due to localized recesses and protrusions on the coated area, leading to improper feedback control and inconsistent coating application.

Method used

An electrode manufacturing apparatus that includes a measuring unit to determine a representative film thickness value based on the top n points, adjusting the volume of branched flow paths using volume-changing members to compensate for localized irregularities, ensuring precise coating application.

Benefits of technology

The apparatus effectively reduces the influence of localized depressions and protrusions, maintaining consistent film thickness and preventing excessive or insufficient coating application, thereby enhancing the manufacturing process.

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Patent Text Reader

Abstract

To provide an electrode manufacturing device in which feedback control of the film thickness is performed appropriately.SOLUTION: An electrode manufacturing device 10 includes: a measurement part 40 which acquires the film thicknesses at multiple points in the width direction B of the coating parts 32 for each coating part 32 and determines a representative value of the film thickness of the coating part 32 from the film thicknesses acquired at the multiple points in the width direction B; and a coating device 30 which includes a plurality of coating liquid discharge parts 312 being the outlets of coating liquid 31 to be coated to a current collector 100, a branch channel 313b that communicates to each coating liquid discharge part 312, and a volume change member 314 being the member that can advance / retreat with respect to each branch channel 313b such that the volume of each branch channel 313 is adjusted and that adjusts the discharge amount of the coating liquid 31 discharged from each coating liquid discharge part 312. The measurement part 40 determines the representative value on the basis of the film thickness of the top n points (n is smaller than the number of film thicknesses obtained in the width direction B and is a natural number) among the film thicknesses at the multiple points in each coating part 32.SELECTED DRAWING: Figure 1
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