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AssigneeNingde Amperex Technology Limited
InventorsJuan ZHOU, Ye LANG, Gang PENG, Chengwei YI
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An electrochemical device, including a positive electrode plate. The positive electrode plate includes a positive electrode active material layer, where the positive electrode active material layer includes a first positive electrode active material and a second positive electrode active material. The first positive electrode active material contains element Ni and element Mn, and the second positive electrode active material contains element Ni and element Co. A relationship curve of a capacity-voltage differential dQ/dV with respect to voltage V during discharge of the electrochemical device includes at least two peaks above 3.8 V. The electrochemical device can achieve good cycling performance and safety performance while meeting the demand for high energy density.
An electrochemical device, comprising a positive electrode plate, wherein the positive electrode plate comprises a positive electrode active material layer, the positive electrode active material layer comprises a first positive electrode active material and a second positive electrode active material, the first positive electrode active material contains element Ni and element Mn, and the second positive electrode active material contains element Ni and element Co;
An electronic device, comprising an electrochemical device, the electrochemical device comprises a positive electrode plate, wherein the positive electrode plate comprises a positive electrode active material layer, the positive electrode active material layer comprises a first positive electrode active material and a second positive electrode active material, the first positive electrode active material contains element Ni and element Mn, and the second positive electrode active material contains element Ni and element Co;
Dependencies are inferred from the claim text.