Home News

How long is the ternary lithium battery life cycle?

Certification
China HONG KONG TAC INDUSTRIAL CO., LTD. certification
China HONG KONG TAC INDUSTRIAL CO., LTD. certification
Customer Reviews
Dear Davide, I leave you in Vivian's hands, I'm sure you will come to an agreement., Vivian is professional in our product.

—— Davide Bet

Here is the signed PI. Thank you , We hope

—— Mr Ander

12V 110Ah battery pack for solar product I like your solar battery pack. Good quality and delivery fast.

—— Eyal Dolev

The battery pack is more atractive for us . May I receive drawing of other pack 12V 20AH with dimentional info ? I need 50pcs to test .

—— Nizamettin

We have received the battery packs and performing tests have passed . We are impressed by the assembly. it is almost the best one . thank you

—— Alexander Kozhushko

Pictures show a nice battery pack, performance is ok , We need serial connected 4cells (4S1P) configuration with protection circuitry

—— George Komisar

big thanks for your work, we got the cargos last week, it seems nice.

—— Johnny Black

I think it is a good idea to solve the problem, I am really appreciate you would like to help us.

—— Simone Kowalk

yes , we received the batteries and chargers last Friday, Everything looks great,well packed, no damage and dlivered in the time frame as promised.

—— Met vriendelijke groet

Thanks for your input, we have checked each and every think and on our side every thing is great. Just proceed to submit the company documents to get approval.

—— Joey Schumer

I'm Online Chat Now
Company News
How long is the ternary lithium battery life cycle?

How long is the ternary lithium battery life cycle?

 

As the cruising range of new energy vehicles is limited, how to improve the battery life affects the entire market. In the battery industry, the ternary lithium battery quickly occupied the 3C, automotive and other markets with its many advantages, and gradually replaced the traditional lead-acid battery. For the traditional battery, the ternary lithium battery has the advantages of long life, energy saving, no pollution, low maintenance cost, complete charge and discharge, light weight, etc. In some publicity materials, some people think that the life of the ternary lithium battery is long, true. Is that the case? How many times does its life cycle cycle? Let us uncover the truth.

What is a ternary lithium battery?

In nature, lithium is the lightest metal with the smallest atomic mass. Lithium is chemically active, and it is easy to lose electrons to be oxidized to Li+. The standard electrode potential is -3.045V, and the electrochemical equivalent is 0.26g/Ah. These characteristics determine that it is a material with a very high specific energy. 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 is a lithium ion rechargeable battery that has been widely studied and applied.

Theoretical life is only moderate

The life of the ternary lithium battery is calculated after the use of a certain degree, the proportion of the capacity attenuation, directly to the end of the capacity life of zero. The industry algorithm is generally that the ternary lithium battery is discharged once fully charged, which is called cycle life. During use, irreversible chemical reactions inside the lithium battery can cause a decrease in battery capacity, such as improper use, or use at extremely high or low temperatures. For example, the decomposition of the electrolyte, the deactivation of the active material, the collapse of the positive and negative structures, the reduction in the number of lithium ion insertion and deintercalation, and the like. 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.

The theoretical life of the ternary lithium battery is 1200 times full charge and discharge, which is the complete cycle life. According to the frequency of use, it is fully charged and discharged once every three days, 120 times full charge and discharge every year, and the service life of the ternary lithium battery reaches ten years. Even if there is loss in the use process or the number of days of charge and discharge is reduced, it can reach eight years. Note that the capacity life is mentioned here. After eight years, the capacity of the ternary lithium battery will still be more than 60%. This is the standard. Sex.

The theoretical lifetime of a ternary lithium battery is moderate 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.

Pub Time : 2019-08-08 17:15:31 >> News list
Contact Details
HONG KONG TAC INDUSTRIAL CO., LTD.

Contact Person: Ms. Alice

Tel: 13928880191

Fax: 852--51230576

Send your inquiry directly to us (0 / 3000)

Contact

Address: UNIT 04 7/F, BRIGHT WAY TOWER, NO.33 MONG KOK ROAD, KOWLOON, HK

Factory Address:No.27 BOWANG Street ,Nan Cun Town, Panyu, Guangzhou, GD,China