How to distinguish between Ni-MH battery and lithium battery?

1. The difference between nickel-metal hydride batteries and lithium batteries-introduction. Nickel-metal hydride batteries are composed of hydrogen ions and metallic nickel. The power reserve is 30% more than that of nickel-cadmium batteries. It is lighter than nickel-cadmium batteries and has a longer service life. , And no pollution to the environment, no memory effect. The disadvantage of nickel-metal hydride batteries is that the price of nickel-cadmium batteries is much more expensive, and the performance is worse than that of lithium batteries. Lithium battery Lithium battery is a type of battery invented by Edison that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. The reaction equation used by the battery is: Li+MnO2u003dLiMnO2. The reaction is an oxidation-reduction reaction and discharge. In the past, because the chemical properties of lithium metal are very active, the production, storage, and use, and the environmental requirements are very high, so lithium batteries have not been used for a long time. With the development of modern science, lithium batteries have now become the mainstream. 2. The difference between nickel-metal hydride batteries and lithium batteries-volumetric rechargeable lithium batteries have the advantages of smaller (relatively), lighter weight, low self-discharge rate, and no memory effect than ordinary nickel-cadmium/nickel-metal hydride batteries. It is used in many new mobile devices. The batteries of mobile devices such as mobile phones, laptops, and PDAs that we usually use have gradually been replaced by lithium batteries. The memory effect of Ni-MH batteries is not very obvious. One thing is that when you need to use it urgently, you don't have to recharge the battery after it is discharged. For normal use, it is best to recharge it after it is discharged. 3. The difference between nickel-metal hydride battery and lithium battery-the specific energy of a lithium battery is large, and the battery is small; the voltage of a single lithium battery is 3 times that of a nickel-metal hydride battery; there is no memory effect, and it can be charged as needed. But it can't be charged at one time, so too many charge and discharge times will affect the life of the battery. Lithium batteries are not suitable for long-term storage, as they will lose part of their capacity permanently. It is best to store it in the freezer of the refrigerator after charging 40%. 4. The difference between nickel-metal hydride batteries and lithium batteries-the charging method of lithium batteries is different from nickel-cadmium/nickel-metal hydride batteries. The single voltage of rechargeable lithium batteries is 3.6V (some battery blocks may be nominally 3.7V) ). As the battery is fully charged, the voltage of the lithium battery will slowly increase, which is also a sign to determine whether the lithium battery is fully charged. Generally, the manufacturer recommends that the charging voltage be stopped at 4.2V (in the case of a single-cell lithium battery). The charging of lithium batteries generally adopts the voltage-limiting current-limiting method. If a friend wants to charge the lithium battery independently, it should be noted that its charging method is different from the constant current charging method used by the nickel-cadmium/nickel-metal hydride battery, and ordinary charging cannot be used. Charger for Ni-Cd/Ni-MH batteries. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: What are the factors related to the capacity of the battery?