Title:
PRISMATIC BATTERY
Document Type and Number:
WIPO Patent Application WO/2015/072010
Kind Code:
A1
Abstract:
The problem of the present invention is to provide a prismatic battery in which a welded portion where a battery can and a battery lid are welded can ensure a predetermined welding strength.
The prismatic battery (1) of the present invention comprises: a battery can (100) surrounded by four side wall portions, opened at the upper end on one side in the height direction of the side wall portions, and having a bottom portion at the lower end on the other side in the height direction; and a battery lid (200) welded to the upper end of the battery can and sealing the battery can. A lateral boundary surface (Fx) in a lateral direction intersecting with the height direction of the side wall portions and a longitudinal boundary surface (Fy) intersecting with the lateral boundary surface and being in a longitudinal direction along the height direction of the side wall portions are formed between the battery can and the battery lid. In the prismatic battery (1), at least part of the lateral boundary surface and at least part of the longitudinal boundary surface are irradiated with a laser (EB) beam in the longitudinal direction along the height direction of the side wall portions and welded to each other.
More Like This:
| WO/2011/042121 | BATTERY ARRANGEMENT |
| JP5953549 | Lithium ion battery |
| JP4377570 | Casing with outer shell for electrochemical batteries |
Inventors:
SAIMARU SHOU (JP)
SOGA YUKIHIRO (JP)
SOGA YUKIHIRO (JP)
Application Number:
PCT/JP2013/080888
Publication Date:
May 21, 2015
Filing Date:
November 15, 2013
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H01M50/103; H01M50/119; H01M50/169
Domestic Patent References:
| WO2010146700A1 | 2010-12-23 |
Foreign References:
| JP2004195490A | 2004-07-15 | |||
| JP2006019089A | 2006-01-19 | |||
| JP2009146645A | 2009-07-02 | |||
| JP2011129266A | 2011-06-30 | |||
| JP2013091085A | 2013-05-16 | |||
| JP2013127867A | 2013-06-27 | |||
| JP2012186005A | 2012-09-27 | |||
| JP2012089311A | 2012-05-10 | |||
| JP2011181215A | 2011-09-15 |
Other References:
See also references of EP 3070760A4
Attorney, Agent or Firm:
HIRAKI Yusuke et al. (JP)
Yusuke Hiraki (JP)
Yusuke Hiraki (JP)
Download PDF:
Previous Patent: BIDIRECTIONAL CONVERTER
Next Patent: FREQUENCY-CHARACTERISTICS MEASUREMENT METHOD AND POSITIONING CONTROL DEVICE
Next Patent: FREQUENCY-CHARACTERISTICS MEASUREMENT METHOD AND POSITIONING CONTROL DEVICE