US 11,876,171 B2
All-solid-state battery and production method of the same
Takeshi Sugiyo, Osaka (JP)
Assigned to HITACHI ZOSEN CORPORATION, Osaka (JP)
Appl. No. 16/479,691
Filed by Hitachi Zosen Corporation, Osaka (JP)
PCT Filed Jan. 23, 2018, PCT No. PCT/JP2018/001979
§ 371(c)(1), (2) Date Jul. 22, 2019,
PCT Pub. No. WO2018/139448, PCT Pub. Date Aug. 2, 2018.
Claims priority of application No. JP2017-010387 (JP), filed on Jan. 24, 2017.
Prior Publication US 2021/0367265 A1, Nov. 25, 2021
Int. Cl. H01M 10/0562 (2010.01); H01M 10/0585 (2010.01); H01M 4/04 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 10/0562 (2013.01) [H01M 4/043 (2013.01); H01M 10/0525 (2013.01); H01M 10/0585 (2013.01); H01M 2300/0068 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An all-solid-state battery, comprising
a positive electrode, a negative electrode, and a solid electrolyte layer interposed between the positive electrode and the negative electrode,
wherein the positive electrode contains first solid electrolyte particles and the negative electrode contains first solid electrolyte particles,
wherein the solid electrolyte layer contains second solid electrolyte particles having ion conductivity,
wherein the first solid electrolyte particles contained in the positive electrode include at least one selected from the group consisting of a sulfide and a hydride,
wherein the first solid electrolyte particles contained in the negative electrode include at least one selected from the group consisting of a sulfide and a hydride,
wherein the second solid electrolyte particles contained in the solid electrolyte layer include at least one selected from the group consisting of a sulfide and a hydride,
wherein an average particle diameter D1 of the first solid electrolyte particles, and an average particle diameter D2 of the second solid electrolyte particles satisfy D2>D1,
wherein the average particle diameter D2 of the second solid electrolyte particles is 3 μm or more,
wherein the second solid electrolyte particles include a first group of particles and a second group of particles, and
wherein the second group of particles of the second solid electrolyte particles each have an average particle diameter D22 of 1 nm or more and less than 100 nm.