18650 lithium batteries are widely used

Source: 2020 - 03 - 18650 lithium batteries at 28 15:52 hits: time definition: 18650 is the ancestor of lithium ion battery, this was developed by SONY in order to save the cost of standard lithium-ion battery. 18 for 18 mm in diameter, 65 for a length of 65 mm, 0 for cylindrical batteries. Ordinary 18650 cells divided into lithium ion battery, lithium iron phosphate batteries. Lithium ion battery voltage is 3. 6 v and 4. 2 v, lithium iron phosphate battery voltage of 3. 2 v, capacity is 1200 mah - 3000 mah, the general capacity of 2200 mah 3600mAh。 Lithium ion batteries due to its light weight, large capacity, no memory and many digital devices are widely used by lithium ion batteries, although they are relatively expensive. High energy density lithium ion batteries, the capacity is the same weight of 1 of nimh batteries. 5 ~ 2 times, low self-discharge rate. In addition, the lithium ion battery has almost no 'memory effect', also do not contain toxic substances, this also is the important reason for the lithium ion battery widely used. What is a 18650 battery? Let's start with the number 18650, which is actually a size, 18 said the battery is 18 mm in diameter, 65 said length is 65 mm, finally a 0 means the battery is cylindrical. 18650 battery generally have lithium ion battery, lithium iron phosphate batteries and nickel-metal hydride batteries of the three. 18650 is a standard in the shape of a lithium ion battery model, developed by SONY in early, to save costs. Since then, it has been used, and become the standard. Due to the lithium battery in many respects than nickel cadmium battery or nickel metal hydride batteries have better performance, so a lot of shape batteries use lithium battery. What is the distinguishing feature of this kind of battery? ( 1) Large capacity, battery capacity is at least more than 1200 mah lithium-ion batteries, can even reach 3600 mah, and general capacity of battery is only around 500; Energy storage of high efficiency, good stability: 70 & deg; Environment still can keep the whole performance of the output, and generally have battery protection circuit to prevent burn out; Almost no memory effect: the battery before charging will not put off all, can charge can put out at any time, easy to use; High charge-discharge cycle life: lithium battery cycle several thousands of times, high temperature resistant performance is very good; Environmental protection, non-toxic material, non-toxic, harmless, free from contamination, through the RoHS quality certification. Lithium batteries don't usually use a root, but the dogan, together we often referred to as the battery, the battery life is usually appear in the outside, our laptop batteries, such as charging treasure, electronic digital products, printers, wireless devices, lithium-ion batteries, portable, intercom communications, POS machine, and so on, at present a lot of battery capacity is 2200 mah. Here are three YangPai lithium battery specification, is generally a good battery: (there are four main protection function 1) Overcharge protection: when the lithium battery overcharge, the battery internal temperature rise will continue to rise, increase the battery voltage detection system, when the battery charge when the pressure reaches a certain value or period, played a filled function, automatically stop charging to protect the battery; ( 2) Over discharge protection, over discharge is refers to the battery has been in a state of overload output, generally have a discharge protection, the battery will be in the stationary state; Over current protection: the over current protection value can be adjusted, there are some things a few amps, can choose according to actual situation Settings ( 4) Short circuit protection. When the battery short circuit, over current protect the batteries don't burn out. In addition to the four kinds of protection function, some also has the functions such as temperature, balance, general built-in battery PCM protection system, with multiple protection function.