What is a ternary lithium battery?
Ternary polymer lithium battery refers to a lithium battery that uses lithium nickel cobalt manganese or lithium nickel cobalt aluminate as the positive electrode material. There are many kinds of positive electrode materials for lithium ion batteries, mainly lithium cobalt oxide, lithium manganate, Lithium nickelate, ternary materials, lithium iron phosphate, etc. The most commonly used household battery is the AA battery, its model is 14500, which is a cylindrical battery with a diameter of 14mm and a length of 50mm; in simple terms, the battery with ternary material as the positive electrode is safer than the lithium cobalt oxide battery. , But the voltage is too low, and when used on a mobile phone (the cut-off voltage of the mobile phone is generally around 3.0V), there will be an obvious feeling of insufficient capacity.
The ternary lithium battery has the characteristics of high energy density, no memory, and long service life.
1. The capacity of the ternary lithium battery is very large. The capacity of the 18650 lithium battery is almost equal to that of the 18650 lithium battery. The ternary polymer battery can even reach 10,000 mAh.
2. The longer the use period, the longer the use period, the longer the cycle of using ternary lithium-ion batteries, the use of more than 500 times the normal cycle system, reaching more than twice that of rechargeable batteries;
3. The 18650 rechargeable battery has no memory, and the remaining battery may not necessarily be discharged before charging, so the application is more convenient;
4. The internal resistance is small, and the irreversible volume damage is small, which can greatly reduce the power consumption of the rechargeable battery itself and improve the battery life;
5. The safety factor of the ternary polymer lithium battery is high, and it is not easy to cause explosion or environmental pollution. The test data shows that due to the separation of the positive and negative poles of the ternary lithium battery, the probability of short-circuit failure is in most cases. When the situation drops to the best condition, the protective plate of the polymer battery cell can repair the ternary lithium battery. On the one hand, it can prevent the rechargeable battery from overcharging or power loss.
What is the purpose of ternary lithium batteries?
Sanyuan is more perfect and stable worldwide, and its market share is also the leading technology of other lithium-ion products. It has been widely used in the field of small and medium-sized lithium batteries such as consumer digital electronic products, industrial equipment, and medical instruments, and is used in intelligent robots. , AGV logistics vehicles, drones and new energy vehicles and other power lithium battery fields, as well as digital products (smartphones, tablets, laptops, electric toy cars, MP3/MP4, headsets, mobile phone charging treasures, aircraft model aircraft, mobile charging Etc.) shows strong development potential.
The material with relatively balanced capacity and safety has better cycle performance than normal lithium cobalt oxide. In the early stage, due to technical reasons, its nominal voltage is only 3.5-3.6V, and its use range is limited. With the continuous improvement of the formula and structure Perfect, the nominal voltage of the battery has reached 3.7V, and the capacity has reached or exceeded the level of lithium cobalt oxide batteries.
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