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US 2023/0399239 A1Published application
Electrode active material, preparation method therefor, electrode comprising same and secondary battery
AssigneeSamsung Electronics Co., Ltd.
InventorsSungjin Lim, Sangbok Ma, Jonghoon Ka, Taeyoung Kim, Youngjoon Bae
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Abstract
An electrode active material including a compound represented by Formula 1: Lix(Ni1-yMy)z(P2O7)4 <Formula 1> wherein in Formula 1, 5≤x≤7, 0.2≤y<1, 4≤z≤6, and M is a Group 3 to Group 11 element or a combination thereof, but is not iron.
Claims27
An electrode active material including a compound represented by Formula 1:
- Lix(Ni1-yMy)z(P2O7)4 <Formula 1>
- wherein, in Formula 1, 5≤x≤7, 0.2≤y<1, 4≤z≤6, and
- M is a Group 3 to Group 11 element or a combination thereof, but is not iron.
A method of preparing an electrode active material comprising a compound represented by Formula 1, the method comprising:
- mixing a nickel precursor, a lithium precursor, a phosphorus precursor, and an M precursor to obtain a precursor mixture;
- and
- heat-treating the precursor mixture.
- Lix(Ni1-yMy)z(P2O7)4 <Formula 1>
- wherein in Formula 1, 5≤x≤7, 0.2≤y<1, 4≤z≤6, and
- M is a Group 3 to Group 11 element or a combination thereof, but is not iron.
3 more elements
Dependencies are inferred from the claim text.