US 9,812,697 B2
Manufacturing method of laminated electrode body
Masaki Koike, Nagoya (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken (JP)
Filed on Sep. 7, 2016, as Appl. No. 15/258,390.
Claims priority of application No. 2015-175502 (JP), filed on Sep. 7, 2015.
Prior Publication US 2017/0069905 A1, Mar. 9, 2017
Int. Cl. B32B 41/00 (2006.01); H01M 4/04 (2006.01); H01M 2/16 (2006.01); H01M 2/14 (2006.01); B32B 38/18 (2006.01); B32B 7/02 (2006.01); B32B 38/00 (2006.01); B32B 37/10 (2006.01); B32B 37/00 (2006.01); H01M 4/02 (2006.01); B32B 37/02 (2006.01); B32B 37/18 (2006.01); B32B 37/22 (2006.01)
CPC H01M 4/043 (2013.01) [B32B 7/02 (2013.01); B32B 38/0004 (2013.01); B32B 38/18 (2013.01); H01M 2/145 (2013.01); H01M 2/1673 (2013.01); B32B 37/0053 (2013.01); B32B 37/02 (2013.01); B32B 37/10 (2013.01); B32B 37/18 (2013.01); B32B 37/187 (2013.01); B32B 37/22 (2013.01); B32B 2309/14 (2013.01); B32B 2309/72 (2013.01); B32B 2457/10 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A manufacturing method of a laminated electrode body, comprising:
forming a separator layer on an electrode surface of at least one of a positive-electrode belt-shaped sheet and a negative-electrode belt-shaped sheet;
cutting either one of the positive-electrode belt-shaped sheet and the negative-electrode belt-shaped sheet so as to form a positive-electrode sheet or a negative-electrode sheet while continuously sending the either one of the positive-electrode belt-shaped sheet and the negative-electrode belt-shaped sheet by a feed roller;
clamping and sending, by a clamp roller, the formed positive-electrode sheet or the formed negative-electrode sheet laminated, via the separator layer, on the other one of the negative-electrode belt-shaped sheet and the positive-electrode belt-shaped sheet, the other one of the negative-electrode belt-shaped sheet and the positive-electrode belt-shaped sheet being uncut;
cutting the other one of the negative-electrode belt-shaped sheet and the positive-electrode belt-shaped sheet at a cutting gap formed between adjacent positive-electrode sheets or negative-electrode sheets laminated on the other one of the negative-electrode belt-shaped sheet and the positive-electrode belt-shaped sheet, so as to obtain a sheet unit including the positive-electrode sheet and the negative-electrode sheet;
measuring a lamination shape of the sheet unit so as to determine good or bad of the lamination shape;
classifying the sheet unit into a good product when it is determined that the lamination shape of the sheet unit is good and classifying the sheet unit into a defective product when it is determined that the lamination shape of the sheet unit is bad; and
laminating and pressing a plurality of sheet units determined as the good product, so as to obtain a laminated electrode body,
wherein the either one of the positive-electrode belt-shaped sheet and the negative-electrode belt-shaped sheet is cut while the either one of the positive-electrode belt-shaped sheet and the negative-electrode belt-shaped sheet is clamped.