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
MIURA TERUHISA
MIURA TERUHISA
Application Number:
PCT/JP2007/053873
Publication Date:
September 20, 2007
Filing Date:
March 01, 2007
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
UEOKA KOUJI
MIURA TERUHISA
UEOKA KOUJI
MIURA TERUHISA
International Classes:
G01N29/12; B23K26/00; B23K26/21; G01N29/00; G01N29/44; H01G9/008; H01G9/048; H01G9/06; H01G9/08; H01G11/22; H01G11/66; H01G11/68; H01G11/70; H01G11/78; H01G13/00; H01M50/538
Foreign References:
| JP2000315632A | 2000-11-14 | |||
| JPS55102221A | 1980-08-05 | |||
| JPS57175089A | 1982-10-27 | |||
| JPS6440192A | 1989-02-10 | |||
| JPH01210185A | 1989-08-23 | |||
| JPH06155056A | 1994-06-03 | |||
| JP2003290946A | 2003-10-14 | |||
| JP2004117041A | 2004-04-15 | |||
| JP2007111745A | 2007-05-10 |
Attorney, Agent or Firm:
IWAHASHI, Fumio et al. (1006, Oaza Kadom, Kadoma-shi Osaka 01, JP)
Download PDF: