US 12,224,403 B2
All-solid-state battery
Kazumasa Tanaka, Tokyo (JP); and Tetsuya Ueno, Tokyo (JP)
Assigned to TDK CORPORATION, Tokyo (JP)
Appl. No. 17/436,158
Filed by TDK CORPORATION, Tokyo (JP)
PCT Filed Mar. 9, 2020, PCT No. PCT/JP2020/010019
§ 371(c)(1), (2) Date Sep. 3, 2021,
PCT Pub. No. WO2020/179934, PCT Pub. Date Sep. 10, 2020.
Claims priority of application No. 2019-041862 (JP), filed on Mar. 7, 2019.
Prior Publication US 2022/0140402 A1, May 5, 2022
Int. Cl. H01M 10/0585 (2010.01); H01M 4/02 (2006.01); H01M 4/13 (2010.01); H01M 10/0562 (2010.01)
CPC H01M 10/0585 (2013.01) [H01M 4/13 (2013.01); H01M 10/0562 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An all-solid-state battery comprising a laminate in which: a positive electrode layer including a positive electrode current collector layer and a positive electrode active material layer; and a negative electrode layer including a negative electrode current collector layer and a negative electrode active material layer, are alternately laminated with a solid electrolyte layer interposed therebetween, wherein
the positive electrode layer includes a first positive electrode end portion exposed on a first side surface of the laminate and a second positive electrode end portion not exposed on a second side surface on a side opposite to the first side surface,
the negative electrode layer includes a first negative electrode end portion exposed on the second side surface of the laminate and a second negative electrode end portion not exposed on the first side surface of the laminate, and
the laminate includes at least one of a first uneven part formed on the first side surface of the laminate and a second uneven part formed on the second side surface of the laminate,
the laminate includes a third side surface positioned to a lateral side of the first side surface and the second side surface,
the positive electrode layer includes a third positive electrode end portion positioned to a lateral side of the first positive electrode end portion and the second positive electrode end portion and configured to be exposed on the third side surface,
the negative electrode layer includes a third negative electrode end portion positioned to a lateral side of the first negative electrode end portion and the second negative electrode end portion and configured to be exposed on the third side surface, and
a third uneven part is provided to be formed on the third side surface of the laminate.