US 12,074,277 B2
All-solid-state battery
Tomohiro Yano, Tokyo (JP)
Assigned to TDK CORPORATION, Tokyo (JP)
Appl. No. 17/293,231
Filed by TDK CORPORATION, Tokyo (JP)
PCT Filed Nov. 28, 2019, PCT No. PCT/JP2019/046500
§ 371(c)(1), (2) Date May 12, 2021,
PCT Pub. No. WO2020/111166, PCT Pub. Date Jun. 4, 2020.
Claims priority of application No. 2018-224938 (JP), filed on Nov. 30, 2018.
Prior Publication US 2021/0384549 A1, Dec. 9, 2021
Int. Cl. H01M 10/0562 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 10/0585 (2010.01); H01M 50/543 (2021.01); H01M 4/02 (2006.01); H01M 50/533 (2021.01); H01M 50/534 (2021.01); H01M 50/54 (2021.01); H01M 50/548 (2021.01); H01M 50/562 (2021.01)
CPC H01M 10/0562 (2013.01) [H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 10/0585 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 50/533 (2021.01); H01M 50/534 (2021.01); H01M 50/54 (2021.01); H01M 50/548 (2021.01); H01M 50/562 (2021.01); H01M 2220/30 (2013.01); H01M 2300/0065 (2013.01); Y02E 60/10 (2013.01); Y02P 70/50 (2015.11)] 10 Claims
OG exemplary drawing
 
1. An all-solid-state battery, comprising:
a laminated body including
positive electrodes, each including a positive electrode current collector layer and a positive electrode active material layer, and
negative electrodes, each including a negative electrode current collector layer and a negative electrode active material layer,
the positive electrodes and the negative electrodes being alternately laminated with a solid electrolyte layer arranged therebetween,
lateral faces including a first lateral face which is formed as a surface parallel to a lamination direction and at which the positive electrode current collector layer of each of the positive electrodes is exposed, and a second lateral face which faces the first lateral face and at which the negative electrode current collector layer of each of the negative electrodes is exposed;
a positive electrode external terminal attached to the first lateral face; and
a negative electrode external terminal attached to the second lateral face,
wherein:
at least one difference of:
a difference between a distance Lcn from a second lateral face side edge part of a positive electrode of an nth layer to the second lateral face and a distance Lcn+1 from a second lateral face side edge part of a positive electrode of an n+1th layer to the second lateral face, and
a difference between a distance Lan from a first lateral face side edge part of a negative electrode of an nth layer to the first lateral face and a distance Lan+1 from a first lateral face side edge part of a negative electrode of an n+1th layer to the first lateral face,
is 10 μm or more, and
n is a natural number.