METHOD AND APPARATUS FOR WELDING ELECTRODE COLLECTORS AND TERMINALS OF BATTERY ELEMENT

Title:

METHOD AND APPARATUS FOR WELDING ELECTRODE COLLECTORS AND TERMINALS OF BATTERY ELEMENT

Document Type and Number:

WIPO Patent Application WO/2007/105491

Kind Code:

A1

Abstract:

Provided is a welding method for welding at least one of a group of a first electrode collector and a first terminal and a group of a second electrode collector and a second terminal to each other. At this time, the welding state is grasped by irradiating a welding target portion with a laser beam, by detecting elastic waves generated from the welding target portion by the laser beam, and by integrating the elastic waves detected, thereby to calculate an index corresponding to the quantity of the connecting energy.

Inventors:

UEOKA, Kouji (())
上岡浩二 (())

Application Number:

JP2007/053873

Publication Date:

September 20, 2007

Filing Date:

March 01, 2007

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1006, Oaza Kadoma Kadoma-shi, Osaka 01, 5718501, JP)
松下電器産業株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 5718501, JP)
UEOKA, Kouji (())

International Classes:

B23K26/20; B23K26/00; G01N29/00; H01G9/008; H01G9/016; H01G13/00; H01M2/26; B23K26/00; G01N29/00; H01G9/008; H01G13/00; H01M2/26

Attorney, Agent or Firm:

IWAHASHI, Fumio et al. (1006, Oaza Kadom, Kadoma-shi Osaka 01, 5718501, JP)

Download PDF:

View/Download PDF PDF Help

Previous Patent: RADIO COMMUNICATION APPARATUS, RECEIVING SYSTEM SELECTION METHOD, AND RECEIVING SYSTEM SELECTION PRO...

Next Patent: MIST GENERATOR