The performance difference between nickel-metal hydride batteries, nickel-cadmium batteries and lithium batteries

Nickel-metal hydride batteries, nickel-cadmium batteries and lithium batteries have differences in performance. Nickel-metal hydride batteries are composed of hydrogen ions and metallic nickel. The stored power is 30% more than that of nickel-cadmium batteries. It is lighter than nickel-cadmium batteries. The disadvantage of nickel-metal hydride batteries is that nickel-metal hydride batteries are much more expensive than lithium batteries, and their performance is worse than lithium batteries. A high energy density battery based on lithium batteries. Lithium battery is still a kind of smart battery, which can work with special original smart charger to achieve the shortest charging time, the largest life cycle and the largest capacity. Lithium batteries are currently the best batteries. Compared with nickel-cadmium batteries and nickel-hydrogen batteries of the same size, it has the largest storage capacity, the lightest weight, the longest lifespan, the shortest charging time, and has no recall effect. Rechargeable batteries are mainly lead-acid batteries and alkaline batteries. Nickel-cadmium batteries, nickel-metal hydride batteries and lithium batteries are all alkaline batteries. The active material on the positive plate of the nickel-cadmium battery is composed of nickel oxide powder and graphite powder. Graphite does not participate in chemical reactions, and its important function is to improve conductivity. Compared with other batteries, nickel-cadmium batteries have a moderate self-discharge rate (that is, the discharge rate of the battery when not in use). In the process of using the nickel-cadmium battery, it is assumed that the discharge is incomplete, and then recharged. The next time it is discharged, it cannot emit all the electricity. For example, if the battery is satisfied after 80% of the power is released, the battery can only release 80% of the power. This is called the recall effect. Of course, a few clean discharge/charge cycles will keep your battery working. According to the recall effect of nickel-cadmium batteries, if the discharge is not complete, each battery should be discharged less than 1V before charging. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What is a super capacitor? An analysis of the principle and use of a super capacitor