Advantages:
1. Sodium salt raw materials are abundant in reserves and low in price. Compared to the ternary cathode of lithium batteries. Iron-manganese-nickel cathode material is used, the raw material cost is low.
2. In terms of power capabilities for fast charging, regenerative braking and start/stop functions, as well as frequency adjustment functions in the power grid sector, sodium ions rely on 3D Structures. The battery worked pretty well.
3. Sodium ions do not form an alloy with aluminum. Aluminum foil can be used as a current collector for the negative electrode, which can further reduce costs.
4. Sodium electricity can be released or maintained at a voltage of 0 V without changing its subsequent performance.
5. Being a giftSince the chemical properties of Na are relatively mild, the possibility of dendrites and explosions at high charging rates is lower than that of lithium batteries.
Disadvantages:
The disadvantages and disadvantages of sodium batteries are short life and rapid discharge.
The main differences between lithium batteries and sodium batteries are:
1. The difference in charge carriers inside the battery is achieved by moving and converting lithium ions between the batteries. positive and negative electrodes. Charge and discharge, while sodium-ion batteries achieve charge transfer through the insertion and extraction of sodium ions between positive and negative electrodes. In fact, the operating principles of both are the same.
2. The ionic radii of the two are different. This difference in radius makes the performance of sodium-ion batteries welllower than those of lithium-ion batteries; of graphite, but sodium ions can hardly be deintercalated in graphite/Embedded, the capacity is very low.
Other carbon materials can reach almost more than 300 mAh after processing; the ion capacity in the positive electrode is very small, only more than 100 mAh is integrated/deintercalated in the positive electrode and; negative electrodes The resistance is large due to the large radius; reversibility is poor and the loss of irreversible capacity is significant.