What is the difference between Ni-MH battery and lithium battery, and how to choose

When choosing a battery, I usually feel at a loss. I don’t know which type of battery is more suitable for the device. I don’t know which one meets my needs. The main reason is that I don’t know enough about the battery. Then what is the difference between Ni-MH battery and lithium battery, and how to choose ? 1. The difference in size Relatively speaking, the volume of lithium batteries is smaller than that of nickel-hydrogen batteries. Because the capacity of lithium batteries of the same volume is higher than that of nickel-hydrogen batteries, lithium batteries are relatively small in size and lighter in weight. , Easy to carry, so it is very suitable for all kinds of new mobile devices, such as mobile phones, computers, PDAs, etc. Lithium batteries have no memory effect, so they can be charged at any time. The memory effect of Ni-MH batteries is low. Generally, it is better to recharge the battery after the battery is exhausted. However, even if the current Ni-MH battery is not completely exhausted and recharged, the impact is not great. In addition, the self-discharge rate of lithium batteries is very low, so the power stored in the battery can be maintained for a long time.　　Second, how much power 　　 There are many differences between nickel-metal hydride batteries and lithium batteries, and the amount of stored power is one aspect. Buyers generally care about battery power. Compared with nickel-metal hydride batteries, lithium batteries have a larger specific energy, that is, the battery contains more power than nickel-metal hydride batteries under the same volume, so the batteries of mobile phones like us are usually Lithium batteries are light in weight and small in size, and can also meet certain electrical capacity requirements.　　3. Self-discharge effect　　As the name implies, self-discharge is the power consumption of the battery when not in use, that is, the ability of the battery to maintain power. The greater the self-discharge effect, the more troublesome it will be to use, because it may face insufficient power at any time. The self-discharge rate of lithium battery and nickel-hydrogen battery is different. The self-discharge performance of lithium battery is far better than that of nickel-hydrogen battery. However, some high-performance nickel-hydrogen batteries also have ultra-low self-discharge products, which can save electricity. The time is also quite long, the self-discharge of the lithium battery is almost negligible, but there will be sluggish capacity. To some extent, lithium batteries can be regarded as a new battery that is better than nickel-hydrogen batteries, and can be used as a better product to replace nickel-hydrogen batteries. Fourth, the size of the battery specifications are unified according to the model, but due to the material of the nickel-hydrogen battery, there are relatively few ultra-high-capacity monomers on the market, and the lithium battery has a large monomer of 20Ah or more. Some monomers are as high as 100Ah, and it is easier to make high-capacity battery packs with lithium batteries. 5. The application fields are also different. With the popularity of computers and mobile phones, the demand for mobile phone batteries in the market is increasing, especially the consumption of mobile phone lithium batteries is the largest. In addition to the digital electronics industry, lithium batteries also It is widely used in new energy vehicles, communication base stations and other places. Ni-MH batteries are generally used in electrical equipment, lamps, and electronic toy industries. There is still a big difference between Ni-MH batteries and lithium batteries, but Ni-MH batteries are more environmentally friendly than lithium batteries, but due to their performance and energy density limitations, the use of Ni-MH batteries is also limited. Statement: Articles published on this site The pictures and content are from the Internet. If there is any infringement, please contact to delete the previous one: How to repair 18650 lithium battery, how to repair 18650 lithium battery