US 9,812,675 B2
Battery and production method thereof
Toshifumi Shimizu, Saku (JP); Kengo Kurata, Saku (JP); Natsuki Toyota, Kashiwazaki (JP); and Eiki Kashiwazaki, Annaka (JP)
Assigned to KABUSHIKI KAISHA TOSHIBA, Minato-ku (JP)
Filed by Kabushiki Kaisha Toshiba, Minato-ku (JP)
Filed on Jun. 24, 2014, as Appl. No. 14/313,681.
Application 14/313,681 is a division of application No. 13/588,121, filed on Aug. 17, 2012, granted, now 9,023,501.
Application 13/588,121 is a continuation of application No. PCT/JP2011/053244, filed on Feb. 16, 2011.
Claims priority of application No. 2010-032952 (JP), filed on Feb. 17, 2010; and application No. 2010-058181 (JP), filed on Mar. 15, 2010.
Prior Publication US 2014/0308549 A1, Oct. 16, 2014
Int. Cl. H01M 2/22 (2006.01); H01M 2/26 (2006.01); H01M 2/02 (2006.01); H01M 2/04 (2006.01); B23K 26/20 (2014.01); B23K 26/00 (2014.01); H01M 2/12 (2006.01)
CPC H01M 2/024 (2013.01) [B23K 26/00 (2013.01); B23K 26/20 (2013.01); H01M 2/0426 (2013.01); H01M 2/22 (2013.01); H01M 2/26 (2013.01); H01M 2/263 (2013.01); H01M 2/12 (2013.01); Y10T 29/4911 (2015.01)] 4 Claims
OG exemplary drawing
 
1. A battery comprising:
a container;
an electrode group comprising a positive electrode and a negative electrode and being accommodated in the container;
a plurality of current collector tabs extended from a plurality of points of a current collector of at least one electrode of the positive electrode and the negative electrode in the electrode group;
a lid closing an opening part of the container;
a lead comprising a current collector tab junctional part connected with the current collector tabs electrically, a lid junctional part fixed to the lid, and a vibration absorber part linking the current collector tab junctional part to the lid junctional part;
a safety valve equipped on the lid;
wherein the electrode group is accommodated in the container such that a surface of the electrode group from which the plurality of current collector tabs extend faces toward the lid,
the lead is bent along a first side separating the vibration absorber part from the lid junctional part and a second side separating the vibration absorber part from the current collector tab junctional part, a direction along the first side and a direction along the second side crossing perpendicularly to one another, and has a gap between the lid junctional part and the current collector tab junctional part, and
wherein the lead is made of a single plate.