The difference between lithium iron phosphate batteries and 18650 lithium batteries. As lithium batteries are more and more widely used, all kinds of products choose lithium batteries are more and more, iron phosphate batteries and 18650 lithium batteries are the more common two kinds of batteries. 18650 type lithium battery is more commonly used in electronic products, often used as a battery cell in the laptop computer. Lithium iron phosphate batteries are generally used in power batteries, this article will elaborate on the differences between the two.
Lithium iron phosphate batteries.
Is the lithium-ion battery with lithium iron phosphate as the cathode material. Lithium-ion battery cathode materials are mainly lithium cobaltate, lithium manganate, lithium nickelate, ternary materials, lithium iron phosphate. Among them, lithium cobaltate is currently the majority of lithium-ion battery cathode material. Because of its performance is particularly suitable for power applications, it is added to the name of the word "power", that is, lithium iron phosphate power battery. Some people also call it lithium-iron (LiFe) power battery.
The advantages of lithium iron phosphate batteries.
1, lithium iron phosphate batteries have a long life, cycle life in more than 2000 times. Under the same conditions, lithium iron phosphate batteries can be used for 7 to 8 years.
2, the use of safe. Lithium iron phosphate battery has undergone rigorous safety testing, even in traffic accidents will not explode.
3, fast charging. Use a special charger, 1.5C charging 40 minutes that can make the battery full.
4, lithium iron phosphate battery high temperature resistance, lithium iron phosphate battery hot air value can reach 350 to 500 degrees Celsius.
5, lithium iron phosphate batteries have a large capacity.
6, lithium iron phosphate battery has no memory effect.
7, lithium iron phosphate batteries are green, non-toxic, non-polluting, raw materials from a wide range of sources, cheap.
Lithium iron phosphate battery: one of the most promising lithium battery cathode material, relatively high theoretical capacity, low price, good thermal stability, non-polluting, excellent charge and discharge cycle performance. Extremely strict requirements for the process, because the power battery is generally composed of multiple cells in series, so the consistency of individual cells is extremely high.
18650 lithium battery.
18650 is the originator of lithium-ion battery - Japan SONY company in order to save costs and set a standard lithium-ion battery model, where 18 means the diameter of 18mm, 65 means the length of 65mm, 0 means a cylindrical battery.
Common 18650 battery is divided into lithium-ion batteries, lithium iron phosphate batteries. Lithium-ion battery voltage is 3.7v nominal voltage and 4.2v charge cut-off voltage, lithium iron phosphate battery nominal voltage is 3.2v and 3.6v charge cut-off voltage, capacity is usually 1200mAh-3350mAh, common capacity is 2200mAh-2600mAh.
Advantages of 18650 lithium battery.
1. Large capacity, 18650 lithium battery capacity is usually between 1200mah~3600mah, while the general battery capacity is only about 800, if the combination of 18650 lithium battery to become 18650 lithium battery pack, that 18650 lithium battery pack is casually can break through 5000mah.
2. Long life, 18650 lithium battery has a long service life, the cycle life can be more than 500 times in normal use, which is more than twice of the ordinary battery.
3. High safety performance, 18650 lithium battery safety performance, non-explosive, non-combustible; non-toxic, non-polluting, after the RoHS trademark certification; a variety of safety performance in one go, the number of cycles is greater than 500 times; high temperature resistance performance, 65 degrees under the conditions of discharge efficiency of 100%. To prevent the short-circuit phenomenon of the battery, the positive and negative poles of 18650 lithium battery are separated. So the possibility of short circuit has been reduced to the extreme. You can add a protection plate to avoid overcharging and overdischarging the battery, which also extends the service life of the battery.
4. High voltage, 18650 lithium battery voltage is generally at 3.6V, 3.8V and 4.2V, much higher than the 1.2V voltage of NiCd and NiMH batteries.
Lithium iron phosphate battery and 18650 battery which is better?
Lithium iron phosphate battery is better than 18650 lithium battery.
Lithium iron phosphate as a lithium battery material is a matter of recent years, the domestic development of high-capacity lithium iron phosphate battery is July 2005. Its safety performance and cycle life is other materials can not be compared, these are also the most important technical indicators of the power battery. 1C charge and discharge cycle life of 2000 times. Single battery overcharge voltage of 30V does not burn, puncture does not explode. Lithium iron phosphate cathode material makes high-capacity lithium-ion batteries easier to use in series. To meet the needs of frequent charging and discharging of electric vehicles. With non-toxic, non-polluting, good safety performance, a wide range of raw material sources, cheap, long life and other advantages, is the ideal cathode material for a new generation of lithium-ion batteries.
18650 lithium battery is lithium iron phosphate battery?
18650 lithium battery contains lithium cobaltate, lithium manganate, lithium nickelate, ternary materials, lithium iron phosphate and so on. Lithium iron phosphate battery cycle life can reach 1000-2000 times, high cycle is its characteristics, compared to its unit price is much lower than ternary lithium batteries. Most of them are used in new energy buses.
18650 lithium battery after years of development, has been very mature and stable; at the same time because of its long history, so the formation of a relatively mature market applications. Along with the development of new energy applications, the status of 18650 lithium battery is gradually impacted, larger cylindrical lithium battery products and square-shaped battery products have appeared in large numbers on the market, many companies have begun to use lithium iron phosphate batteries, lithium iron phosphate batteries in power battery applications will gradually replace the 18650 lithium battery.
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