MUMBAI, India, Aug. 12 -- Intellectual Property India has published a patent application (202617080148 A) filed by Contemporary Amperex Technology Co. , Limited on June 29, 2026, for Positive Electrode Material Composition And Preparation Method Therefor, Positive Electrode, Sodium Battery, And Electric Device.

Inventors include Wu, Kai; Tang, Zheng; Ouyang, Shaocong; Ye, Yonghuang; Li, Quanguo; Jin, Haizu; and Chen, Jiahua.

The application for the patent was published on August 07, 2026, under issue no. 32/2026.

Abstract: A positive electrode material composition and a preparation method therefor, a positive electrode, a sodium battery, and an electric device. The positive electrode material composition comprises at least two nickel-iron-manganese-based sodium battery positive electrode active materials; the nickel-iron-manganese-based sodium battery positive electrode active materials are physically mixed; and the mixture of the nickel-iron-manganese-based sodium battery positive electrode active materials also contains a Cu element and a Q element. The positive electrode comprises the positive electrode material composition, and the sodium battery comprises the positive electrode. The electric device comprises the sodium battery. The positive electrode material composition can improve the direct-current internal resistance stability of the battery cell of the battery in the charging and discharging process.

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