公开(公告)号：US20230178796A1

公开(公告)日：2023-06-08

申请号：US18008779

申请日：2021-06-09

Applicant: SHOWA DENKO K.K.

Inventor： Ryosuke SEI ,  Kunchan LEE

IPC: H01M10/0562 ,  H01M10/052 ,  C01B25/45

CPC classification number: H01M10/0562 ,  H01M10/052 ,  C01B25/45 ,  H01M2300/0074 ,  C01P2006/40 ,  C01P2002/52 ,  C01P2002/72

Abstract: A lithium ion conductive solid electrolyte or an all-solid-state battery. The lithium ion conductive solid electrolyte satisfies any of (I) to (III): (I) having a crystal structure based on LiTa2PO8 and a crystal structure based on at least one compound selected from LiTa3O8, Ta2O5, and TaPO5; (II) being represented by the stoichiometric formula of Lia1Tab1Bc1Pd1Oe1 where 0.5

公开(公告)号：US20230017483A1

公开(公告)日：2023-01-19

申请号：US17785354

申请日：2020-12-25

Applicant: SHOWA DENKO K.K.

Inventor： Ryosuke SEI ,  Kunchan LEE

IPC: H01M10/0562 ,  H01M10/0525

Abstract: The present invention aims to provide a lithium-ion-conducting oxide sintered body capable of providing a solid electrolyte with an excellent ion conductivity, and a solid electrolyte, an electrode and an all-solid-state battery using the same. The lithium-ion-conducting oxide sintered body including at least lithium, tantalum, phosphorus, silicon, and oxygen as constituent elements, and having a polycrystalline structure consisting of crystal grains and grain interfaces formed between the crystal grains.