What is the lifespan of a lithium battery?
The service life of lithium-ion batteries on ordinary electronic products is about 5 to 20 years, with an average of 8 years. With the current technical level, the service life of lithium-ion batteries in electric vehicles is only about 3-5 years.
When the battery capacity of the electric vehicle decays to less than 80% of the initial capacity, the driving range of the electric vehicle will be significantly reduced. When the battery capacity decays to less than 70%, the battery must be replaced. For many current pure electric vehicles, the cost of the battery accounts for about 40% of the total cost of the vehicle.
Daily maintenance of lithium batteries
1. Just fill the first charge
Lithium batteries do not have the so-called “memory effect” of nickel-chromium batteries, and long-term incomplete charging and discharging will not affect the capacity of the battery. In addition, the general lithium battery pack has a BMS (battery management system), which has full self-stop and over-discharge protection. That is to say, if your lithium battery is fully charged, it will also be white-charged on the charger.
2. Shallow discharge and shallow charge
To maximize the performance of a lithium-ion battery, it is necessary to “teasing” it frequently so that the electrons in the lithium-ion battery are always in a state of flow. Overcharging and discharging will damage the battery to a great extent, so do not wait until the battery is completely exhausted before charging.
How long is the life of a lithium battery?
The service life of lithium batteries is only two to three years, and lithium batteries can generally be charged and discharged once. Lithium metal batteries generally use manganese dioxide as the positive electrode material, metal lithium or its alloy metal as the negative electrode material, and use a non-aqueous electrolyte solution.
“Lithium battery” is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. Years of lithium metal batteries were first proposed and studied by GilbertN.Lewis. In the 1970s, lithium-ion batteries were proposed and started to be studied. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. Therefore, lithium batteries have not been used for a long time. With the development of science and technology, lithium batteries have now become the mainstream.
Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium-ion batteries do not contain lithium in the metallic state and are rechargeable. The fifth generation of rechargeable batteries, lithium metal batteries, was born in 2009, and its safety, specific capacity, self-discharge rate and performance-price ratio are better than lithium-ion batteries. Due to its own high technical requirements, only companies in a few countries are now producing such lithium metal batteries.
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