What is the difference between Ni-MH battery and Li-ion battery head

Nickel-metal hydride batteries are composed of hydrogen ions and metallic nickel, which have 30% more power reserve than nickel-cadmium batteries, lighter than nickel-cadmium batteries, and have a longer service life, and are environmentally friendly and have no memory effect. The disadvantage of nickel-metal hydride batteries is that nickel-cadmium batteries are much more expensive, and their performance is worse than that of lithium-ion batteries. Lithium-ion battery is a kind of high-energy-density battery using lithium-ion battery as the material. Lithium-ion battery is also a kind of smart battery, it can cooperate with special original smart charger to achieve the shortest charging time, the longest life cycle and the largest capacity. Lithium-ion batteries are currently the best batteries. Compared with nickel-cadmium batteries and nickel-hydrogen batteries of the same size, it has the largest power reserve, the lightest weight, the longest life, the shortest charging time, and no memory effect. 1. Volumetric rechargeable lithium-ion battery has the advantages of small size (relatively), lighter weight, low self-discharge rate, and no memory effect compared with ordinary nickel-cadmium/nickel-metal hydride batteries, and is widely used in many new mobile devices. The batteries of mobile devices such as mobile phones, laptops, and PDAs that we usually use have been gradually replaced by lithium-ion 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 charge the battery after it is discharged. For normal use, it is best to recharge it after lighting up. 2. Electricity Li-ion battery has a large specific energy and a small battery; the voltage of a single lithium-ion battery is 3 times that of a nickel-hydrogen 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-ion batteries are not suitable for long-term storage, as they will permanently lose part of their capacity over time. It is best to store it in the freezer of the refrigerator after charging 40%. 3. Charging method The charging requirements of lithium-ion batteries are different from nickel-cadmium/nickel-metal hydride batteries. The single voltage of rechargeable lithium-ion batteries is 3.6V (some battery blocks may be nominally 3.7V). As the battery is fully charged, the voltage of the lithium-ion battery will slowly increase, which is also a sign to determine whether the lithium-ion 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-ion battery). The charging of lithium-ion batteries generally uses the voltage-limiting current-limiting method. If a friend wants to charge the lithium-ion battery independently, please note that its charging method is different from the constant current charging method used by the nickel-cadmium/nickel-metal hydride battery and cannot be used. Normal charger for Ni-Cd/Ni-MH batteries. 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: How to use the power lithium ion battery better?