What are the advantages of rechargeable batteries? What kind of it?

2. The voltage of rechargeable batteries is lower than that of disposable batteries of the same type. AA batteries (No. 5 charging) are 1.2 volts, and 9V rechargeable batteries are actually 8.4 volts. Now the general charging times can be about 1000 times. 3. Long cycle life. They can be fully charged and discharged more than 200 times. Some rechargeable batteries have a higher load capacity than most disposable batteries. There are only five types of rechargeable batteries: nickel-cadmium, nickel-metal hydride, lithium ion, lead storage, and iron lithium. 1. Nickel-cadmium battery (Ni-Cd) voltage: 1.2V rechargeable battery; service life: 500 times; discharge temperature: -20℃～60℃; charging temperature: 0℃～45℃; feature: recall effect , The capacity is small. 2. Ni-MH battery voltage: 1.2V; service life: 1000 times; discharge temperature: -10 degrees to 45 degrees; charging temperature: 10 degrees to 45 degrees; features: small memory effect, capacity Large, now the highest capacity of domestic No. 5 battery is about 2500mAh. 3. Li-lon battery voltage: 3.6V; service life: 500 times; discharge temperature: -20 degrees to 60 degrees; charging temperature: 0 degrees to 45 degrees; characteristics: no memory effect, thin body , The capacity is large, the weight is 30%-40% lighter than the nickel-hydrogen battery, and the capacity is more than 60% higher than that of the nickel-hydrogen battery. But it is not resistant to overcharging. If overcharging, the temperature will be too high and the structure will be destroyed u003d> blasting. Due to different electrode materials, the electromotive force is 3.6V and 3.7V. The function of the lithium battery is the best among all the existing batteries, with a small volume, a light weight and a large capacity. It is widely used in electronic products such as digital cameras, notebook computers, and mobile phones. 4. Li-polymer battery (Li-polymer) voltage: 3.7V; service life: 500 times; discharge temperature: -20 degrees to 60 degrees; charging temperature: 0 degrees to 45 degrees; remarks: an improved type of lithium battery , There is no battery fluid, and instead of using polymer electrolyte, it can be made into various shapes, which is more stable than lithium batteries. 5. Lead-acid battery (Sealed) voltage: 2V; service life: 200～300 times; discharge temperature: 0℃～45℃; charging temperature: 0℃～45℃; Statement: Some pictures of articles published on this site And the content is from the Internet, if there is any infringement, please contact to delete the previous article: What are the advantages of vanadium storage batteries compared with traditional lithium storage batteries?