US 12,444,746 B2
Complex particles for negative electrode active material and negative electrode for all-solid type battery comprising the same
Byoung-Hoon Ahn, Daejeon (KR); Kyung-Taek Kim, Daejeon (KR); Ki-Tae Kim, Daejeon (KR); Chan-Soo Jun, Daejeon (KR); and Sang-Hoon Choy, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/044,108
Filed by LG Chem, Ltd., Seoul (KR)
PCT Filed May 24, 2019, PCT No. PCT/KR2019/006282
§ 371(c)(1), (2) Date Sep. 30, 2020,
PCT Pub. No. WO2019/226020, PCT Pub. Date Nov. 28, 2019.
Claims priority of application No. 10-2018-0059800 (KR), filed on May 25, 2018.
Prior Publication US 2021/0184218 A1, Jun. 17, 2021
Int. Cl. H01M 4/587 (2010.01); H01M 10/0525 (2010.01); H01M 10/0562 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/587 (2013.01) [H01M 10/0525 (2013.01); H01M 10/0562 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 2220/20 (2013.01); H01M 2300/0068 (2013.01)] 13 Claims
OG exemplary drawing
 
1. Complex particles for a negative electrode active material, comprising:
graphite particles of a granulated graphite material, and
a mixture including a solid electrolyte and a conductive material,
wherein the granulated graphite material is derived from any one of natural graphite or artificial graphite,
gaps within the granulated graphite material inside of the graphite particles are filled with the mixture, and an outer surface of the graphite particles is coated with the mixture in whole or at least in part, and
the granulated graphite material is included in an amount ranging from 70 weight % to 95 weight % based on 100 weight % of the complex particles.