Four main materials of lithium battery

1. The separator of the battery can also prevent the positive and negative electrodes from directly contacting. If the positive and negative electrodes are in direct contact, it will be short-circuited, so the battery may explode and catch fire.

2. The electrolyte is actually a medium (with a certain corrosiveness) used by the battery, which provides the corresponding ions for the normal operation of the car battery and ensures that the chemical reaction of the battery is reversible.

3. The negative electrode refers to the lower end of the potential (potential) in the power supply. In a galvanic cell, it refers to the electrode that acts as oxidation, and the cell reaction is written on the left. From a physical point of view, it is the pole from which electrons flow out of a circuit.