Nickel-CADMIUM Batteries (NI-CD) (Ni-CD)

　　Nickel -cadmium batteries were first used in batteries such as mobile phones and other devices. It has good large -current discharge characteristics, strong capacity for charge and discharge, and simple maintenance;

　　The most fatal disadvantage of nickel -cadmium batteries is that if it is not handled properly during the charging and discharge process, a serious "memory effect" will occur, which greatly shortens the service life. The so -called "memory effect" is that the battery has not been completely disabled before charging, and the battery capacity will be reduced over time. The small bubbles, the accumulation of these bubbles reduced the area of the battery plate, and indirectly affected the capacity of the battery.

　　In addition, cadmium in nickel -cadmium batteries (NI -CD) is toxic, which makes the waste battery process complex and the environment is polluted. Therefore, it will gradually be replaced by nickel -metalized batteries (NI -MH) made of hydrogen storage alloys.

　　Ni -Mh Batteries (NI -MH Batteries)

　　Nickel -hydride battery is a battery that is excellent, safe and reliable in mobile phone batteries. The power reserves of the nickel metal hydrogen battery are 30%more than the nickel -cadmium battery, which makes the call time for mobile phones prolonged by 30%. Nickel -metal hydride batteries are lighter than nickel -cadmium batteries, and have a longer service life. There is no pollution to the environment and no memory effect. The disadvantage of nickel -metal hydride batteries is that the price is more expensive than the nickel -cadmium battery, and the performance is worse than lithium batteries. It belongs to the mid -range battery.

　　In terms of battery power, the power of nickel -hydride charging batteries of the same size is about 1.5 to 2 times higher than that of nickel -cadmium batteries. It is now widely used in various small portable electronic devices such as mobile communication and laptop computers.

　　The larger -capacity nickel -metalized battery has begun to be used on gasoline/electric hybrid vehicles. The use of nickel -metal hydride batteries can be quickly charged and discharged. When the car is driving at high speed, the electricity sent by the generator can be stored in the nickel -metalized battery in the car When the car is driving at low speed, it usually consumes a lot of gasoline than the high -speed driving status. Therefore, in order to save gasoline, at this time, you can use the car nickel -metal hydride battery to drive the motor to replace the internal combustion engine. A large amount of gasoline, so hybrid vehicles have greater market potential compared to the traditional sense of cars.

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