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US 2026/0155436 A1Published application
Lithium-ion conductor, lithium battery including the same, and method of preparing lithium-ion conductor
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsSungjin LIM, Giyun KWON, Taeyoung KIM, Taehee KIM, Hwiyeol PARK, Insun JUNG
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Abstract
A lithium-ion conductor and an all-solid-state battery including the lithium-ion conductor. The lithium-ion conductor including: a first compound represented by Formula 1; and a second compound represented by Formula 2, wherein the lithium-ion conductor has a first peak at a diffraction angle (2θ) of 23.8° to 24.5° in an X-ray diffraction spectrum: wherein Formula 1 and Formula 2 are as described herein.
Claims20
A lithium-ion conductor comprising:
- a first compound represented by Formula 1;
- and
- a second compound represented by Formula 2,
- wherein the lithium-ion conductor has a first peak at a diffraction angle (2θ) of 23.8° to 24.5° in an X-ray diffraction spectrum:
- wherein, in Formula 1,
- 3.8≤x≤4.2, 0≤y<4, and 0.5≤z≤1.2,
- M1 is at least one element belonging to groups 13 to 15 of Periodic Table, and
- X1 is at least one halogen element,
- wherein, in Formula 2,
- 3.8≤x≤4.2 and 0.5≤z≤1.2, and
- X2 is at least one halogen element.
8 more elements
A method of preparing a lithium-ion conductor, the method comprising:
- preparing a precursor glass comprising lithium, boron, an M1 element, and a halogen element;
- annealing the precursor glass to prepare an intermediate;
- and
- pressurizing and heat-treating the intermediate to prepare a lithium-ion conductor comprising a crystal phase,
- wherein the lithium-ion conductor comprises a first compound represented by Formula 1 and a second compound represented by Formula 2,
- wherein the lithium-ion conductor has a peak at a diffraction angle (2θ) of 23.8° to 24.5° in an X-ray diffraction spectrum:
- wherein, in Formula 1,
- 3.8≤x≤4.2, 0≤y<4, and 0.5≤z≤1.2,
- M1 is at least one element belonging to groups 13 to 15 of the Periodic Table, and
- X1 is at least one halogen element,
- wherein, in Formula 2,
- 3.8≤x≤4.2 and 0.5≤z≤1.2, and
- X1 is at least one halogen element.
10 more elements
Dependencies are inferred from the claim text.