The type of electrode active material determines the theoretical capacity of the lithium battery electrode and the balancing potential of the electrode, thereby determining the capacity and electromotive force of the battery. The smaller the chemical equivalent of the electrode active material, the smaller its electrochemical equivalent, the greater theoretical than the capacity.Usually the theory is more than the capacity of the active material. Theoretical specific capacity of the substance is not only related to the atomic amount of the substance, but also related to the loss of the loss of the material during the substance. For example, the element periodical table third cycle elements Na, Mg, A1, each of which are 22.99, 24.32, 26.98, respectively, and the number of absence of electron is L, 2, 3, respectively, when the electrode is reacted, respectively. Therefore, chemical equivalents were 22.99 / 1-22.99; 24.32 / 2-12.16; 26.98 / 3 = 8.99. Electrochemical equivalents are 22.99 / 26.8-0.857g ¡¤ (AH) one; 12.16 / 26.8-0.4549 ¡¤ (AH) 1; 8.99 / 26.8-0.355g ¡¤ (AH) one. Obviously, the electrochemical equivalent of Al is the smallest, theoretical is the highest. Schedule 3 lists chemical equivalents and electrochemical electrochemical equivalents of partial active materials.
Different substances have a large difference than capacity. Therefore, when designing a battery, the electrode active substance having a large capacity is preferably selected.
The electromotive force of the battery is the measurement of the battery system to give a measure of the maximum energy. When designing a battery, it should also be noted that the balance potential of the positive electrode material should be selected, the more the balance potential of the negative electrode material is selected, the higher the electric force of the battery.
In addition to having a higher theoretical specific capacity, the electrode active material has a relatively positive balance potential, and the negative electrode active material has a negative balance potential, and there is a suitable crystal state, density, particle size, surface state, etc. It also requires good stability, and does not act with the components in the battery.
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