What is a lithium ion battery? What are the characteristics of lithium-ion batteries?

Lithium-ion battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-bai aqueous electrolyte solution. In 1912, the lithium metal battery was first proposed and studied by Gilbert N. Lewis. In the 1970s, M.S. Whittingham proposed and began to study lithium-ion batteries. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium-ion batteries have now become the mainstream. Lithium ion batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable. The fifth generation of rechargeable batteries, lithium metal batteries, was born in 1996, and its safety, specific capacity, self-discharge rate and performance-price ratio are superior to those of lithium-ion batteries. Due to its own high-tech requirements, only a few companies in a few countries are producing such lithium metal batteries. So what are the characteristics of lithium-ion batteries? 1. It has a higher weight-to-energy ratio and volume-to-energy ratio; 2. The voltage is high, and the voltage of a single-cell lithium-ion battery is 3.6V, which is equal to the series voltage of three nickel-cadmium or nickel-hydrogen rechargeable batteries; 3. The self-discharge is small and long Time storage, this is the most prominent superiority of the battery; 4. No memory effect. Lithium-ion batteries do not have the so-called memory effect of nickel-cadmium batteries, so lithium-ion batteries do not need to be discharged before charging; 5. Long life. Under normal working conditions, the number of charge/discharge cycles of lithium-ion batteries is far greater than 500; 6. It can be quickly charged. Lithium-ion batteries can usually be charged with 0.5 to 1 times the capacity of the current, so that the charging time can be shortened to 1 to 2 hours; 7. It can be used in parallel at will; 8. Because the battery does not contain heavy metal elements such as cadmium, lead, mercury, etc., it is environmentally friendly It is pollution-free and is the most advanced green battery in the contemporary era; 9. High cost. Compared with other rechargeable batteries, lithium-ion batteries are more expensive. 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 post: How to charge your mobile phone to make your mobile phone battery longer?