How long the life of the ternary battery and the life of the ternary lithium battery?

1 Since the electrolyte materials constituting the lithium battery are different, the lithium ion battery is also classified into a ternary lithium battery and a liquid lithium ion battery. The ternary lithium ion battery is the same as the positive and negative materials of the liquid lithium ion battery, and the battery works similarly, and the electrolytes are different from each other. The ternary lithium battery is light in weight, strong in energy storage capacity, good in discharge performance, and can cause various shapes and has a long life. The electrolyte of the ternary lithium battery is a solid electrolyte. Compared with the liquid electrolyte of the liquid lithium ion battery, the ternary lithium battery can cause various shapes to improve the specific capacity of the battery.

With the increasing global pollution, energy conservation and environmental protection has become the top priority of social development. At present, China has vigorously promoted environmental protection and introduced some related policies. Therefore, there are more and more environmental protection equipment on the market. Including the reduction of gasoline vehicles, the market launch of new energy vehicles, and products such as charging treasures are all environmentally friendly batteries. That is, lithium batteries, lithium batteries, compared with the traditional lead acid point, have a short charging time, long cycle life, energy saving, environmental pollution, no pollution, light weight, long service life and other characteristics. Said that it has a long life and where is it?

Under the international unified standard, the battery life is not expressed by time, but by the number of cycles, that is, the complete discharge of the electricity once, the general lithium battery is between 300-500 times, A product ternary battery can Up to 800 times. Therefore, the quality of the battery of the selected battery supplier will be guaranteed and the service life will be longer.

How long is the life of ternary lithium battery?

How long is the life of the ternary lithium battery?

If a lithium-ion battery is used in a high-temperature environment, such as a temperature above 350C, the amount of battery stored will continue to decrease, resulting in a battery that does not last as long as it is in a normal temperature environment. When the battery is charged in such a high temperature environment, the battery will be damaged to a large extent, thereby affecting the service life of the battery. Even charging in a hot environment can cause different degrees of damage to the battery, so you should try to avoid charging the battery in a high temperature environment. If the battery is charged in a low temperature environment, such as in an environment below 40C, the battery will also be damaged.

If you do not charge the ternary lithium-ion battery for a long time, it will reduce its life. The ternary lithium-ion battery needs to reach its ideal service life when the electrons remain flowing a long time, the commercial production technology of ternary lithium-ion batteries in the world is not very mature, and now the market share is not high.

The theoretical life of a ternary lithium battery is about 800 cycles, which is medium in commercial rechargeable lithium batteries. lithium iron phosphate is about 2000 times, and lithium titanate is said to reach 10,000 cycles. At present, the mainstream battery manufacturers promise more than 500 times in the ternary battery specifications produced by them (charge and discharge under standard conditions), but after the batteries are assembled into battery packs, due to consistency problems, mainly voltage and internal The resistance cannot be exactly the same, and its cycle life is about 400 times. The manufacturer recommends that the SOC use window be 10%~90%. It is not recommended to carry out deep charge and discharge. Otherwise, it will cause irreversible damage to the positive and negative structures of the battery. If it is calculated by shallow charge and shallow release, the cycle life is at least 1000 times. In addition, if the lithium battery is often discharged in a high rate and high temperature environment, the battery life will drop to less than 200 times.

How long is the life of ternary lithium battery?

In nature, lithium is the lightest, smallest atomic metal with an atomic weight of 6.94 g/mol and ρ = 0.53 g/cm3. Lithium is chemically active, and it is easy to lose electrons to be oxidized to Li+. Therefore, the standard electrode potential is the most negative, -3.045V, and the electrochemical equivalent is the smallest, 0.26g/Ah. These characteristics of lithium determine that it is very High specific energy material. The ternary lithium battery refers to a lithium secondary battery using three kinds of transition metal oxides of nickel, cobalt and manganese as a positive electrode material. It fully integrates the good cycle performance of lithium cobaltate, the high specific capacity of lithium nickelate and the high safety and low cost of lithium manganate. It synthesizes nickel by molecular level mixing, doping, coating and surface modification, a multi-element synergistic composite lithium intercalation oxide such as cobalt manganese, it is a lithium ion rechargeable battery that has been widely studied and applied.

How long is the life of ternary lithium battery?

The so-called lithium battery life means that after the battery has been used for a period of time, the capacity is attenuated to 70% of the nominal capacity (room temperature 25 ° C, standard atmospheric pressure, and battery capacity discharged at 0.2 C), and the end of life can be considered. In the industry, the cycle life is generally calculated by the number of cycles in which the lithium battery is fully charged. During the process of use, irreversible electrochemical reactions inside the lithium battery lead to a decrease in capacity, such as decomposition of the electrolyte, deactivation of the active material, collapse of the positive and negative structures, reduction in the number of lithium ion insertion and deintercalation etc. Experiments have shown that higher rate discharges result in faster attenuation of the capacity. If the discharge current is lower, the battery voltage will approach the equilibrium voltage and release more energy.

At present, the market price of ternary lithium-ion batteries is higher than that of liquid lithium-ion batteries. Compared with liquid lithium-ion batteries, it has a long life and good safety performance. It is believed that there will be a lot of room for improvement in the near future.

According to the current technical level of ternary lithium batteries, if used properly, it can be used for at least 5 years on electric vehicles. If used improperly, the 2-3 year lithium battery life will be attenuated.

The so-called use or not, mainly depends on whether you can abide by the principle of shallow filling and shallow, do not overuse.

Introduction:

The ternary polymer lithium battery refers to a lithium battery using a lithium nickel cobalt manganese ternary positive electrode material for the positive electrode material. There are many kinds of positive electrode materials for the lithium ion battery, mainly lithium cobaltate, lithium manganate, lithium nickelate, and ternary materials lithium iron phosphate and the like. At present, the ternary material battery replaces the widely used lithium cobalt oxide battery, and is widely used in the field of notebook batteries.

Ternary polymer lithium battery parameters:

Nominal capacity: 1250mAh

Standard discharge continuous current: 0.2C

Maximum discharge continuous current: 1C

Discharge: -10~60°C

Product size: MAX9.5*35*52mm

Finished product internal resistance: ≤150mΩ

Lead type: national standard line UL1007/24#, line length 55mm

Protection parameters: overcharge protection voltage / 4.325 ± 0.025V per string

Over-discharge protection voltage 2.5±0.05V

Over current value: 2~6A or 3-8A

Ternary polymer lithium battery performance:

The material with relatively balanced capacity and safety has better cycle performance than normal lithium cobaltate. Its nominal voltage is only 3.5-3.6V in the early stage due to technical reasons. However, there are restrictions on the scope of use, but until now, with the formulation with continuous improvement and perfect structure, the nominal voltage of the battery has reached 3.7V, and the capacity has reached or exceeded the level of lithium cobalt oxide battery.

Terpolymer lithium battery status:

SANYO, PANASONIC, SONY, LG, and SAMSUNG have launched batteries for ternary materials. A considerable number of notebook battery lines have replaced the previous lithium cobalt oxide batteries with batteries of ternary materials, SANYO. In the SAMSUNG column battery, the production of lithium cobalt oxide batteries turned to ternary cells was completely discontinued. At present, most of the small high-power batteries at home and abroad use ternary cathode materials.

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