What are the differences between various common rechargeable batteries?

At present, nickel-cadmium, nickel-metal hydride, and lithium-ion rechargeable batteries are widely used in various portable electrical equipment (such as notebook computers, video cameras and mobile phones). Each rechargeable battery has its own magical chemical properties. The main difference between nickel-cadmium and nickel-metal hydride batteries is that nickel-metal hydride batteries have a higher energy density. Compared with batteries of the same type, the capacity of Ni-MH batteries is twice that of Ni-Cd batteries. This means that the use of nickel-metal hydride batteries can greatly extend the working time of the equipment when no additional weight is added to the electrical equipment. Another advantage of nickel-metal hydride batteries is: A greatly reduces the memory effect problem that exists in cadmium batteries, so that nickel-metal hydride batteries can be used more conveniently. Ni-MH batteries are more environmentally friendly than Ni-Cd batteries because there are no toxic heavy metal elements inside. Li-ion has also quickly become a standard power source for portable devices. Li-ion can provide the same energy as Ni-MH batteries, but it can be reduced by about 35% in terms of weight. This is for electrical equipment such as cameras and laptops. That is crucial. The advantage that Li-ion has no memory effect and no toxic substances is also an important factor that makes it a standard power source. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete it. Previous: How do you use lithium-ion batteries, do you know?