How to distinguish the types of batteries?

Primary storage battery: throw away when used up and cannot be used repeatedly, such as: carbon-zinc storage battery, alkaline storage battery, mercury storage battery, lithium storage battery. Secondary batteries: rechargeable rechargeable batteries, such as: nickel-cadmium rechargeable batteries, nickel-hydrogen rechargeable batteries, lithium rechargeable batteries, lead-acid batteries, solar batteries. According to the shape to distinguish the general cylindrical example: No. 1/2/5 / 7, etc., suitable for general electronic goods. Button shape example: mercury storage battery, suitable for electronic watches, hearing aids, etc. Square example: 9V battery, suitable for wireless microphones, toys, etc. Sheet shape example: solar battery panel, suitable for computers and outdoor buildings. Industrial use cases are distinguished by purpose: those used by the factory for built-in products, which are of a specific shape or composed of multiple particles, such as: electric tools, batteries for communication, etc. Consumer usage example: general consumers can purchase and replace them in the market, and the most used cylindrical convex battery. Service life A battery is a chemical substance, so it also has a certain service life. Primary batteries such as dry batteries (including ordinary alkaline batteries) cannot be charged, and of course there is only one service life. Regarding rechargeable batteries, generally we use the number of recharges to measure the length of its service life. The cycle life of nickel-cadmium batteries is about 300 to 700 times, the rechargeable times of nickel-metal hydride batteries are generally 400 to 1000 times, and that of lithium batteries is 500 to 800 times. The service life of a rechargeable battery is not only affected by factors such as the raw materials and manufacturing processes used in the production of the battery, but also has a close relationship with the charging and discharging method of the battery and the actual usage. For example, someone started using 6-cell HITACHI nickel-cadmium batteries in 1985. They are still in use today, but the capacity of the batteries is somewhat reduced. It seems that as long as the method of use is reasonable, the rechargeable battery can reach or even greatly exceed the nominal service life. 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 article: What are the methods for detecting dry battery power?