18650 ternary lithium battery refers to a ternary lithium battery with a diameter of 18mm and a length of 65mm using lithium nickel cobalt manganate or lithium nickel aluminate cobalt as cathode material.
The ternary composite cathode material is composed of nickel salt, cobalt salt and manganese salt as raw materials. The proportion of nickel, cobalt and manganese it contains is adjusted according to actual needs. Compared to lithium cobalt oxide batteries, the batteries are made of ternary material. the positive stage has high safety, but its disadvantage is that the voltage is too low.
There are many types of positive electrode materials for lithium-ion batteries. The main positive electrode materials include lithium cobalt oxide, lithium manganate, lithium nickel oxide, ternary materials, lithium phosphateiron and lithium, etc.
Detailed information
Ternary material is a relatively balanced material in terms of capacity and safety. Its cycle performance is better than normal lithium cobalt oxide. At first, due to technology, the reason is that its rated voltage is only 3.5-3.6V, which limits the use range. Currently, with the continuous improvement of the formula and the improvement of the structure, the rated voltage of. the battery has reached 3.7V and its capacity has reached or exceeded the lithium cobalt oxide battery level.
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Baidu Encyclopedia-18650 Lithium Battery
What does 18650 lithium battery mean Explanation of the 18650 lithium battery< /h3>
The details are as follows:
18650 is a lithium ion battery and a lithium battery modelm-ion standard, where 18 means the diameter is 18mm, 65 means the length is 65mm, 0 means cylindrical battery.
Common 18650 batteries are divided into lithium ion batteries and lithium iron phosphate batteries. The voltage of lithium ion battery is 3.6V and 4.2V, the voltage of lithium iron phosphate battery is 3.2V, the capacity is generally 1200mAh to 3000mAh, the Common capacity is 2200 mAh to 3600 mAh.
How to buy lithium batteries
1. Is the capacity clearly marked? Batteries without clearly marked capacity (such as 1000 mAh or 1000 mAh) are most likely using lower quality batteries or recycled batteries. Many inexpensive batteries on the market are made from recycled batteries. Although they are cheap, their lifespan is short and their unstable quality can damage the phone.
2. Is there autonomyn guaranteed standby? Standby time is the duration of continuous use from the time the battery is installed in the phone until the next charge. Generally, batteries sold in the market cannot guarantee standby time to customers. This is because the battery quality is unstable. Many cheap batteries use poor quality battery cores, so the standby time is very short.
1. 18650 is the creator of lithium-ion batteries - a standard lithium-ion battery model defined by the Japanese company SONY to reduce costs. 18 means the diameter is 18mm. , 65 means the length is 65mm, 0 means cylindrical battery.
2. Lithium-ion batteries have the advantages of light weight, large capacity and no memory effect, so they are widely used. Many digital devices use lithium batteriesthium-ion as power sources, although they are relatively expensive. The energy density of lithium-ion batteries is very high, their capacity is 1.5-2 times that of nickel-metal hydride batteries of the same weight, and their self-discharge rate is very low. In addition, the advantages of lithium-ion batteries, which have virtually no memory effect and contain no toxic substances, are also important reasons for their widespread use. In addition, please note that the exterior of lithium batteries is usually marked with 4.2V lithium ion battery (lithium battery) or 4.2V lithium secondary battery (lithium secondary battery) or a 4.2V lithium-ion rechargeable battery (rechargeable lithium battery) in English. Therefore, users should read the signs on appearance. of the battery pack clearly when purchasing batteries. Avoid confusingnickel-cadmium and nickel-hydrogen batteries with lithium batteries because you can't clearly see the battery type.