We are looking for companies with knowledge of the following requirements:
5V spinel lithium nickel manganate is used as the positive electrode, and artificial graphite material is used as the negative electrode. In order to adapt to the high-voltage system, it is necessary to develop a high-voltage electrolyte;
The electrolyte moisture is no more than 10ppm, the free acid (as HF) is less than 10ppm, and the conductivity (25℃) is about 7±0.5ms/cm;
Verify that the high-voltage system is carried out in a 5Ah pouch cell, requiring a weight energy density of 260Wh/kg, 25°C cycle (1C) 800cls more than 80%, 45°C cycle (1C) 400cls more than 80%, and low temperature -20°C (0.33 C) more than 50%.