US 12,249,685 B2
All solid battery
Kyung Lock Kim, Suwon-si (KR); and Chang Ryul Jung, Suwon-si (KR)
Assigned to SAMSUNG ELECTRO-MECHANICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRO-MECHANICS CO., LTD., Suwon-si (KR)
Filed on Apr. 6, 2020, as Appl. No. 16/840,733.
Claims priority of application No. 10-2019-0155227 (KR), filed on Nov. 28, 2019.
Prior Publication US 2021/0167418 A1, Jun. 3, 2021
Int. Cl. H01M 10/0562 (2010.01); H01M 4/02 (2006.01); H01M 4/131 (2010.01); H01M 4/134 (2010.01); H01M 4/36 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01)
CPC H01M 10/0562 (2013.01) [H01M 4/131 (2013.01); H01M 4/134 (2013.01); H01M 4/366 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An all-solid battery comprising:
a body including a solid electrolyte layer and an anode layer and a cathode layer alternately stacked with the solid electrolyte layer interposed therebetween;
first and second external electrodes disposed on external surfaces of the body; and
a protective layer including at least one of Al2O3, SiO2, ZrO2, Ta2O3, TiO2 or Si3N4, and disposed directly on one or more of the external surfaces of the body,
wherein the anode layer and the cathode layer include an active electrode material,
wherein the active electrode material included in the anode layer and the cathode layer includes the same non-polar-based material,
wherein the solid electrolyte layer comprises Lithium-Ion Conducting Glass-Ceramics (LIC-GC) together with an oxide-based material having a NASICON structure in which a transition metal the same as a transition metal included in the anode layer and the cathode layer is included, and pores in the solid electrolyte layer are filled with the Lithium-Ion Conducting Glass-Ceramics (LIC-GC), and
wherein end portions of the protective layer are covered by the first and second external electrodes, respectively, and a central portion of the protective layer, disposed between the end portions, is an exterior portion of the all-solid battery.