Lithium all-solid-state battery
US-2024194940-A1 · Jun 13, 2024 · US
Positive electrode active material and magnesium secondary battery
US12562385B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12562385-B2 |
| Application number | US-202217659762-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 19, 2022 |
| Priority date | Feb 21, 2020 |
| Publication date | Feb 24, 2026 |
| Grant date | Feb 24, 2026 |
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Abstract
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A positive electrode active material contains a composite sulfide containing Mg and at least one element selected from the group consisting of Ti, V, Cr, Mn, Fe, Ni, Cu, Zr, Nb, Mo, Ta, and W. The positive electrode active material has a crystal structure belonging to space group Fm-3m.
First claim
Opening claim text (preview).
What is claimed is: 1 . A positive electrode active material comprising: a composite sulfide which, in an initial state prior to charging and discharging, is represented by a compositional formula Mg x M y S 2 , where Mg is magnesium, M is at least one element selected from the group consisting of Ti, V, Cr, Mn, Fe, Ni, Cu, Zr, Nb, Mo, Ta, and W, and 0.8<x<1.3, and 0.8<y<1.3, wherein the composite sulfide in the initial state has a crystal structure belonging to space group Fm-3m. 2 . The positive electrode active material according to claim 1 , wherein M is at least one element selected from the group consisting of Ti, Cr, and Ni. 3 . A magnesium secondary battery comprising: a positive electrode containing the positive electrode active material according to claim 1 ; an electrolyte; and a negative electrode. 4 . The positive electrode active material according to claim 1 , wherein M is at least one element selected from the group consisting of Ti, Nb, Mo, Ta, and W. 5 . The positive electrode active material according to claim 1 , wherein M is at least one element selected from the group consisting of Ti, Nb, Mo, Ta, and W and at least one element selected from the group consisting of V, Cr, Mn, Fe, Ni, Cu, and Zr.
Assignees
Inventors
Classifications
Positive electrodes · CPC title
Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium · CPC title
as mixtures · CPC title
Accumulators with non-aqueous electrolyte (H01M10/39 takes precedence) · CPC title
Sulfides or polysulfides of magnesium, calcium, strontium, or barium · CPC title
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- What does patent US12562385B2 cover?
- A positive electrode active material contains a composite sulfide containing Mg and at least one element selected from the group consisting of Ti, V, Cr, Mn, Fe, Ni, Cu, Zr, Nb, Mo, Ta, and W. The positive electrode active material has a crystal structure belonging to space group Fm-3m.
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/5815. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 24 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).