Explanation of the types of rechargeable batteries

The meaning of rechargeable batteries A rechargeable battery is a rechargeable battery with a limited charging time. When it is out of power, current will flow through. It can convert electrical energy into chemical energy. When the battery is connected to an electrical appliance, the battery will undergo a chemical reaction to convert chemical energy into electrical energy. So charge-discharge-charge-discharge can be used in cycles. Generally, 5 or 7 are sold in the market, and there is also one. Advantages of rechargeable batteries 1. The advantages of rechargeable batteries are economy, environmental protection, and sufficient power. They are suitable for high-power, long-term electrical appliances, such as walkmans and electric toys. 2. The voltage of the rechargeable battery is lower than the voltage of the same type of disposable battery. AA batteries (no. 5 charge) are 1.2 volts, and 9V rechargeable batteries are actually 8.4 volts. Now the general charging time can be around 1000. 3. Long cycle life. It can be charged once and discharged more than 200 times. Some rechargeable batteries have more load than most disposable batteries. There are only five types of rechargeable batteries: nickel cadmium, nickel metal hydride, lithium ion, lead storage and lithium iron. 1. Nickel-cadmium battery (ni-cd) voltage: 1.2v rechargeable battery; service life: 500 times; discharge temperature: -20℃~60℃; charging temperature: 0℃~45℃; features: good memory effect, small capacity . 2. Ni-MH battery (ni-mh) voltage: 1.2v; service life: 1000 times; discharge temperature: -10℃~45℃; charging temperature: 10℃~45℃; features: small memory effect, large capacity, now Not in the country. 5. The maximum battery capacity is about 2500 mA. 3. Li-lon battery voltage: 3.6v; service life: 500 times; discharge temperature: -20℃~60℃; charging temperature: 0℃~45℃; features: no recall effect, thin body, capacity Large, the weight is 30%-40% lighter than Ni-MH batteries, and the capacity is more than 60% higher than Ni-MH batteries. But it cannot withstand overcharging. If overcharging, the temperature will be too high and the structure will be destroyed u003d> blasting. Due to the different electrode materials, the electromotive force is 3.6V and 3.7V respectively. The performance of lithium batteries is the best among all kinds of batteries, with small size, light weight and large capacity. Widely used in electronic products such as digital cameras, notebook computers, and mobile phones. 4. Li-polymer voltage: 3.7v; service life: 500 times; discharge temperature: -20℃~60℃; charging temperature: 0℃~45℃; Note: The improved lithium battery has no battery liquid. On the contrary, polymer electrolytes can be made into various shapes, which are safer than lithium batteries. 5. Lead-acid battery (sealed) voltage: 2v; service life: 200~300 times; discharge temperature: 0℃~45℃; charging temperature: 0℃~45℃; Note: it is a general-purpose car battery, which is a 62V series 12V, water-free battery life can reach 10 years, but the volume and capacity are the largest. 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: New Graphene Battery Technology Explanation