US 11,658,337 B2
Sulfide solid electrolyte and treatment method therefor
Masayuki Shibata, Chiba (JP); Hiroaki Yamada, Chiba (JP); Nobuhito Nakaya, Ichihara (JP); Yusuke Iseki, Chiba (JP); Minoru Senga, Sodegaura (JP); Takashi Hayakawa, Chiba (JP); Shogo Shimada, Ichihara (JP); Tomoyuki Okuyama, Ichihara (JP); and Koji Kato, Chiba (JP)
Assigned to IDEMITSU KOSAN CO., LTD., Chiyoda-ku (JP)
Appl. No. 17/254,477
Filed by IDEMITSU KOSAN CO., LTD., Chiyoda-ku (JP)
PCT Filed Nov. 22, 2019, PCT No. PCT/JP2019/045851
§ 371(c)(1), (2) Date Dec. 21, 2020,
PCT Pub. No. WO2020/105736, PCT Pub. Date May 28, 2020.
Claims priority of application No. JP2018-219130 (JP), filed on Nov. 22, 2018; and application No. JP2019-148211 (JP), filed on Aug. 9, 2019.
Prior Publication US 2021/0242496 A1, Aug. 5, 2021
Int. Cl. H01M 10/0562 (2010.01); H01M 10/42 (2006.01); H01B 1/10 (2006.01)
CPC H01M 10/0562 (2013.01) [H01B 1/10 (2013.01); H01M 10/4235 (2013.01); H01M 2300/008 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A sulfide solid electrolyte, comprising:
a material comprising a lithium element, a sulfur element, and a phosphorus element; and
a complexing agent which is an amine compound and is forming a co-crystal with the lithium element, the sulfur element, and the phosphorus element,
wherein the sulfide solid electrolyte has a volume-based average particle diameter measured by laser diffraction particle size distribution measurement of 3 μm or more, and a specific surface area measured by a BET method of 20 m2/g or more.