-(3)Why has ternary lithium batteries become a new star in power lithium batteries?

(3)Why has ternary lithium batteries become a new star in power lithium batteries?
author:enerbyte source:本站 click331 Release date: 2023-08-28 08:31:39
abstract:
By 2025, the specific energy of the monomer will reach 500Wh/kg. 3. Strive to achieve the industrialization of lithium-ion battery products with a single battery capacity of 350Wh/kg and a system capacity of 260Wh/kg, as well as vehicle applications. In fa...

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By 2025, the specific energy of the monomer will reach 500Wh/kg.

3. Strive to achieve the industrialization of lithium-ion battery products with a single battery capacity of 350Wh/kg and a system capacity of 260Wh/kg, as well as vehicle applications.

In fact, it is precisely because of this development direction that the spring of ternary lithium-ion batteries has truly arrived, because there is not much room for lithium iron phosphate to break through in terms of monomer energy density, and the potential of ternary lithium-ion batteries has not yet been fully explored.

Issues related to battery life

Wang Shihu provides a detailed explanation on the lifespan of Chuanghe lithium-ion batteries: the theoretical lifespan of ternary lithium-ion batteries is 2000 charging and discharging cycles, but in practical use, after 900 charging and discharging cycles, the battery capacity basically decays to 55%. That is to say, fully charged can only run half the original mileage. But if each battery charge and discharge is controlled to operate in a cycle of 0% -50% or 25% -75%, combined with the excellent battery management system of Chuanghe Lithium, even after 3000 charge and discharge cycles, the battery capacity can still be maintained at around 70%.

And the cycle life of lithium iron phosphate batteries is also over 2000 times, and standard charging (5-hour rate) can achieve a cycling performance of 2000 times. However, lithium iron phosphate batteries have a fatal drawback, which is their poor low-temperature performance. Even if they are nano sized and carbon coated, this problem cannot be solved. Research has shown that a battery with a capacity of 3500mAh, if operated in an environment of -10 ℃ and subjected to less than 100 charging and discharging cycles, will rapidly decay to 500mAh and be basically scrapped. So in the north, the working conditions of this type of battery are really worrying. Wang Shihu's summary of the advantages and disadvantages of lithium iron phosphate.

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