公开(公告)号：US20250167293A1

公开(公告)日：2025-05-22

申请号：US18839482

申请日：2022-09-28

Applicant: TDK Corporation

Inventor： Hiroshi SATO ,  Tomoko NAKAMURA ,  Shota SUZUKI ,  Ayaka NAGATOMI

IPC: H01M10/0562 ,  H01M4/02 ,  H01M4/36 ,  H01M4/38 ,  H01M4/485 ,  H01M4/525

Abstract: An all-solid-state battery according to the present embodiment includes a sintered body having a positive electrode, a negative electrode and a solid electrolyte layer disposed between the positive electrode and the negative electrode, the solid electrolyte contains a solid electrolyte having a γ-Li3PO4-type crystal structure, and the negative electrode has a layer containing a metal composed of Ag or a Li—Ag alloy and a compound represented by LiαTi5O12 (4≤α≤7).

公开(公告)号：US20250167295A1

公开(公告)日：2025-05-22

申请号：US18841244

申请日：2022-09-28

Applicant: TDK CORPORATION

Inventor： Hiroshi SATO ,  Tomoko NAKAMURA ,  Yuusuke YAMAGUCHI ,  Shota SUZUKI ,  Ayaka NAGATOMI

IPC: H01M10/0562 ,  H01M4/131 ,  H01M10/0525

Abstract: An all-solid-state battery according to the present embodiment includes a sintered body having a positive electrode, a negative electrode and a solid electrolyte layer that is between the positive electrode and the negative electrode, the positive electrode contains a compound having a spinel structure, the solid electrolyte layer contains a solid electrolyte having a γ-Li3PO4-type crystal structure, the compound having a spinel structure is represented by LiαMβMn2−βO4 . . . (1), and, in the formula (1), M is one or more atoms selected from transition metals, 0.8≤α≤1.2 is satisfied, and 0.1≤β≤0.9 is satisfied.

公开(公告)号：US20250167294A1

公开(公告)日：2025-05-22

申请号：US18841232

申请日：2022-09-28

Applicant: TDK CORPORATION

Inventor： Hiroshi SATO ,  Tomoko NAKAMURA ,  Yuusuke YAMAGUCHI ,  Shota SUZUKI ,  Ayaka NAGATOMI

IPC: H01M10/0562 ,  H01M4/38

Abstract: An all-solid-state battery according to the present embodiment includes a sintered body having a positive electrode, a negative electrode and a solid electrolyte layer disposed between the positive electrode and the negative electrode, the solid electrolyte layer contains a solid electrolyte having a γ-Li3PO4-type crystal structure, and the negative electrode contains pure Ag or a Ag alloy and at least one compound of LiαTiO3 (2≤α≤2.8) and LiβTiSiO5 (2≤β≤4).