Comparison of nickel -hydride battery and lithium ion battery -Lithium - Ion Battery Equipment
Uniqueness: low price, strong practicality, large working current, and green environmental protection.
Disadvantages: The total weight is large, and the battery life is generally short.
The design of nickel -metal hydride batteries originated from nickel -cadmium batteries, but there is a large degree of breakthrough in continuously improving the memory effect of nickel -cadmium batteries. Its important transformation is that the cadmium that is originally selected by the negative electrode is transformed by hydrogen storage aluminum alloy, so nickel -metal hydride batteries can be said to be a common symbol of raw material development and innovation. Environmental pollution caused by nickel -metal hydride batteries will be countless than that of cadmium -rich nickel -cadmium batteries. Therefore, at this stage, nickel -cadmium batteries have gradually transformed by nickel -metal hydride batteries.(Lithium - Ion Battery Equipment)
The advantages and disadvantages of lithium -ion battery
Unique: No memory effect, the total weight is relatively lighter.
Disadvantages: The cost is relatively high, and the working current is relatively small, without full charge (compared with nickel -hydride).
Lithium ion batteries have disposable lithium-ion batteries (not battery charging) and the second power lithium-ion battery (rechargeable battery). Lithium ion battery.
In most cases, the digital camera uses the second power lithium -ion battery (rechargeable battery). Compared with nickel -metal hydride batteries, the total weight is relatively lighter, and the volume power density is 48%higher than the heat efficiency. Thanks to this, the total volume of the second battery production and sales of lithium ions is gradually higher than that of nickel -metal hydride batteries. Such a battery has a small battery and no memory effect. The battery charging frequency can meet the Li-Polymer polymer lithium-lyt battery designed by 600 times, especially in recent years. In most cases, the cylindrical or square space of the battery is limited, and the total weight is lighter.
Lithium does not pass the full charge. If you choose a security risk of an explosion, you need to build a self -built manipulating chip to prevent full charge, but the cost cost is relatively much enhanced. The lithium -ion battery is not unified by the model specifications, so that it is difficult to buy the battery after sale. It's just that the MP3 player has continued to improve countless at this stage.