Positive electrode active material for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery
US-2023071732-A1 · Mar 9, 2023 · US
Positive electrode active material for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary battery
US12512459B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12512459-B2 |
| Application number | US-202118028364-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 14, 2021 |
| Priority date | Sep 30, 2020 |
| Publication date | Dec 30, 2025 |
| Grant date | Dec 30, 2025 |
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- Title
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Abstract
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This positive electrode active material for nonaqueous electrolyte secondary batteries contains a lithium transition metal composite oxide that is represented by composition formula Li x Mn y Ni z P a M b O 2-c F c (wherein M represents at least one element that is selected from among Ti, Co, Si, Sr, Nb, W, Mo, Ca, Mg, Sb, Na, B, V, Cr, Fe, Cu, Zn, Ge, Zr, Ru, K and Bi; 1.0<x≤1.2; 0.4≤y≤0.8; 0≤z≤0.4; 0<a<0.01; 0<b<0.05; 0<c<0.1; and (x+y+z+a+b)≤2).
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 represented by the composition formula Li x Mn y Ni z P a M b O 2-c F c , wherein M represents at least one element selected from the group consisting of Ti, Co, Si, Sr, Nb, W, Mo, Ca, Mg, Sb, Na, B, V, Cr, Fe, Cu, Zn, Ge, Zr, Ru, K, Bi, and Al, 1.0<x≤1.2, 0.4≤y≤0.8, 0≤z≤0.4, 0.002≤a<0.01, 0<b<0.05, 0<c<0.1, and x+y+z+a+b≤2. 2 . The positive electrode active material for a non-aqueous electrolyte secondary battery according to claim 1 , wherein M represents two or more elements. 3 . The positive electrode active material for a non-aqueous electrolyte secondary battery according to claim 2 , wherein the two or more M are selected from Ti, Co, Nb, Sb, and Al, and a molar proportion of M (b) satisfies 0<b<0.035. 4 . The positive electrode active material for a non-aqueous electrolyte secondary battery according to claim 1 , wherein in the composition formula Li x Mn y Ni z P a M b O 2-c F c , a molar proportion of P (a) satisfies 0.002≤a≤0.005. 5 . The positive electrode active material for a non-aqueous electrolyte secondary battery according to claim 1 , wherein in the composition formula Li x Mn y Ni z P a M b O 2-c F c , a molar proportion of F (c) satisfies 0.05≤c≤0.085. 6 . The positive electrode active material for a non-aqueous electrolyte secondary battery according to claim 1 , wherein in the composition formula Li x Mn y Ni z P a M b O 2-c F c , a molar proportion of Ni (z) satisfies 0.05≤z<0.3. 7 . The positive electrode active material for a non-aqueous electrolyte secondary battery according to claim 1 , wherein M represents one or more elements selected from the group consisting of Ti, Co, Si, Sr, Nb, Mg, Sb, Ge, and Al. 8 . The positive electrode active material for a non-aqueous electrolyte secondary battery according to claim 1 , wherein M contains at least Ti. 9 . The positive electrode active material for a non-aqueous electrolyte secondary battery according to claim 8 , wherein the composition formula contains no Co. 10 . 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.
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Classifications
of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy (H01M4/505, H01M4/525 take precedence) · CPC title
Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
Positive electrodes · CPC title
of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy · CPC title
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- What does patent US12512459B2 cover?
- This positive electrode active material for nonaqueous electrolyte secondary batteries contains a lithium transition metal composite oxide that is represented by composition formula Li x Mn y Ni z P a M b O 2-c F c (wherein M represents at least one element that is selected from among Ti, Co, Si, Sr, Nb, W, Mo, Ca, Mg, Sb, Na, B, V, Cr, Fe, Cu, Zn, Ge, Zr, Ru, K and Bi; 1.0<x≤1.2; 0.4≤y≤0.8; 0≤…
- 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 Dec 30 2025 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).