Positive-electrode active material containing lithium composite oxide, and battery including the same
US-2020020943-A1 · Jan 16, 2020 · US
Positive electrode active material for non-aqueous electrolyte secondary battery, and non-aqueous electrolyte secondary battery
US12531239B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12531239-B2 |
| Application number | US-202117799761-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 21, 2021 |
| Priority date | Feb 26, 2020 |
| Publication date | Jan 20, 2026 |
| Grant date | Jan 20, 2026 |
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Abstract
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This positive electrode active material for a non-aqueous electrolyte secondary battery contains a lithium-transition metal composite oxide that has a rock salt-related structure and is represented by the compositional formula Li a Mn b M c O 2−X F x (in the formula: M is at least one metal element excluding Li and Mn; 2.000<a+b+c≤2.195; 1.0<a≤1.4; 0.4≤b≤0.9; 0≤c≤0.2; and 0.2≤x≤0.6). The metal element M preferably is at least one selected from Ni, Sn, Mo, Ti, W, Zn, and Al.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A positive electrode active material for a non-aqueous electrolyte secondary battery, including a lithium-transition metal composite oxide having a rock-salt related structure not belonging to the space group Fm-3m and represented by the compositional formula Li a Mn b M c O 2−x F x , wherein M is at least one metal element excluding Li and Mn, 2.000<a +b+c≤2.195, 1.0<a≤1.4, 0.4≤b≤0.9, 0≤c≤0.2, and 0.2≤x≤0.6. 2 . The positive electrode active material for a non-aqueous electrolyte secondary battery according to claim 1 , wherein the metal element M in the compositional formula Li a Mn b M c O 2−x F x is at least one selected from the group consisting of Ni, Sn, Mo, Ti, W, Zn, and Al. 3 . A non-aqueous electrolyte secondary battery, comprising: a positive electrode including the positive electrode active material according to claim 1 ; a negative electrode; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte.
Assignees
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Classifications
Positive electrodes · CPC title
Physical characteristics, e.g. porosity, surface area · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
- H01M4/505Primary
of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy · CPC title
of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy (H01M4/505, H01M4/525 take precedence) · CPC title
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- What does patent US12531239B2 cover?
- This positive electrode active material for a non-aqueous electrolyte secondary battery contains a lithium-transition metal composite oxide that has a rock salt-related structure and is represented by the compositional formula Li a Mn b M c O 2−X F x (in the formula: M is at least one metal element excluding Li and Mn; 2.000<a+b+c≤2.195; 1.0<a≤1.4; 0.4≤b≤0.9; 0≤c≤0.2; and 0.2≤x≤0.6). The metal…
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/505. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 20 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).