Positive electrode material, and electrochemical apparatus and electric apparatus containing such positive electrode material
AssigneeNingde Amperex Technology Limited
InventorXiaolang Liu
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Abstract
A positive electrode material includes a lithium cobalt oxide with a P63mc crystal structure. In a Raman spectrum of the positive electrode material, a peak height of a characteristic peak within a range of 490 cm−1±5 cm−1 is I1, and a peak height of a characteristic peak within a range of 592 cm−1±5 cm−1 is I2, satisfying 1<I2/I1<5.
Claims20
A positive electrode material, comprising a lithium cobalt oxide with a P63mc crystal structure, wherein
- in a Raman spectrum of the positive electrode material, a peak height of a characteristic peak within a range of 490 cm−1±5 cm−1 is I1, a peak height of a characteristic peak within a range of 592 cm−1±5 cm−1 is I2, and 1<I2/I1<5.
An electrochemical apparatus, comprising a positive electrode plate, the positive electrode plate comprises a positive electrode active material layer, and the positive electrode active material layer comprises a positive electrode material, wherein the positive electrode material comprises a lithium cobalt oxide with a P63mc crystal structure, wherein
- in a Raman spectrum of the positive electrode material, a peak height of a characteristic peak within a range of 490 cm−1±5 cm−1 is I1, a peak height of a characteristic peak within a range of 592 cm−1±5 cm−1 is I2, and 1<I2/I1<5.
An electric apparatus, comprising an electrochemical apparatus, wherein the electrochemical apparatus comprises a positive electrode plate, the positive electrode plate comprises a positive electrode active material layer, and the positive electrode active material layer comprises a positive electrode material, wherein the positive electrode material comprises a lithium cobalt oxide with a P63mc crystal structure, wherein
- in a Raman spectrum of the positive electrode material, a peak height of a characteristic peak within a range of 490 cm−1±5 cm−1 is I1, a peak height of a characteristic peak within a range of 592 cm−1±5 cm−1 is I2, and 1<I2/I1<5.
Dependencies are inferred from the claim text.