Positive electrode active material, positive electrode slurry, positive electrode sheet, battery and vehicle
AssigneeEve Power Co., Ltd.
InventorsTingting WU, Meng CHEN, Shengyao WEN, Jianhang GAO, Fanfen LIU
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Abstract
A positive electrode active material, a positive electrode slurry, a positive electrode sheet, a battery and a vehicle are provided herein. The positive electrode active material includes lithium manganese iron phosphate and lithium nickel cobalt manganese oxide; where a mass ratio of lithium manganese iron phosphate to lithium nickel cobalt manganese oxide is (50-95):(5-50); a general chemical formula of lithium nickel cobalt manganese oxide is: LiNiaCobMn(1-a-b)O2, 0.6≤a<1, 0<b<0.5, 0<a+b<1.
Claims20
A positive electrode active material, comprising lithium manganese iron phosphate and lithium nickel cobalt manganese oxide;
- wherein, a mass ratio of the lithium manganese iron phosphate to the lithium nickel cobalt manganese oxide is (50-95):(5-50);
- a general chemical formula of the lithium nickel cobalt manganese oxide is:
- LiNiaCobMn(1-a-b)O2, wherein 0.6≤a<1, 0<b<0.5, 0<a+b<1.
A positive electrode slurry, comprising a positive electrode active material, wherein the positive electrode active material comprises lithium manganese iron phosphate and lithium nickel cobalt manganese oxide;
- wherein, a mass ratio of the lithium manganese iron phosphate to the lithium nickel cobalt manganese oxide is (50-95):(5-50);
- a general chemical formula of the lithium nickel cobalt manganese oxide is:
- LiNiaCobMn(1-a-b)O2, wherein 0.6≤a<1, 0<b<0.5, 0<a+b<1.
A positive electrode sheet, comprising a positive electrode foil and a positive electrode active layer coated on the positive electrode foil;
- wherein, the positive electrode active layer is prepared by using a positive electrode slurry, wherein the positive electrode slurry comprises a positive electrode active material, wherein the positive electrode active material comprises lithium manganese iron phosphate and lithium nickel cobalt manganese oxide;
- wherein, a mass ratio of the lithium manganese iron phosphate to the lithium nickel cobalt manganese oxide is (50-95):(5-50);
- a general chemical formula of the lithium nickel cobalt manganese oxide is:
- LiNiaCobMn(1-a-b)O2, wherein 0.6≤a<1, 0<b<0.5, 0<a+b<1;
- or the positive electrode active layer comprises the positive electrode active material.
Dependencies are inferred from the claim text.