-What is the trade-off between battery life and safety in power lithium-ion battery packs?

What is the trade-off between battery life and safety in power lithium-ion battery packs?
author:enerbyte source:本站 click128 Release date: 2024-01-05 09:54:35
abstract:
As is well known, when consumers choose electric vehicles, the range is one of the important factors. In order to meet the needs of consumers, various car companies constantly find ways to increase the range of cars and improve battery energy density. Therefore, the trend of high nickel content in t...

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As is well known, when consumers choose electric vehicles, the range is one of the important factors. In order to meet the needs of consumers, various car companies constantly find ways to increase the range of cars and improve battery energy density. Therefore, the trend of high nickel content in ternary lithium batteries is obvious, accompanied by safety issues in power lithium batteries.

In recent years, driven by the subsidy policy for new energy vehicles, the energy density of power lithium-ion battery packs has been reaching new highs year by year, and the range of new energy vehicles has also been continuously increasing. However, electric vehicles, which are gradually emerging from the shadow of mileage anxiety, seem to have once again fallen into the trap of safety anxiety. What is the trade-off between battery life and safety? In fact, the new energy vehicle industry cannot develop healthily and in the long run without safety or safety. Only by seeking the common improvement of both can the industry develop and grow.

The safety anxiety of new energy vehicles has become the first anxiety, and the safety of power lithium-ion battery packs is the first to be affected. Only safe products have a market for application. Regarding new energy vehicles, safety issues cannot be solely attributed to the battery, but rather to the system safety design of each link. The focus of attention on power lithium batteries is still on safety, range, power, cost, charging convenience, service life, etc. Among them, safety is still the most basic and important requirement.

Improving the safety of power lithium-ion battery packs should focus on all aspects such as the battery, battery cell materials, modules, the design of the entire battery pack system, and battery management.

The quality of power lithium batteries affects the safety and endurance of electric vehicles, especially safety issues. Prevention should be the main focus, starting from product design, especially when the specific energy of the battery continues to increase. Safety issues should be given more attention. At the same time, with the expansion of power lithium battery production, the product differentiation in China's new energy vehicle power lithium battery industry is becoming increasingly significant, which will undoubtedly trigger a new wave of industrial restructuring.

Actually, it is possible, but on a deeper level, no matter how strong the battery life is, there will always be times when the battery runs out. What is more important is to start solving the problem of charging facilities. However, in some mega cities along the coast of China with high population density, it is not easy to improve the charging facilities in these areas. Therefore, separating vehicles from electricity is a good solution.

Returning to the issue of electric vehicle endurance, blindly pursuing endurance is not advisable, but the vehicle's endurance cannot be maintained at the initial one to two hundred kilometers. The battery life should be gradually improved while maintaining the safety of the power lithium-ion battery pack, and with the gradual improvement of charging facilities, it can meet the needs of consumers for travel.

Experts say that in terms of range and efficiency, ternary lithium-ion battery packs are currently a good choice, but safety is still its weakness. In terms of stability, lithium manganese oxide batteries are undoubtedly more prominent, with good safety under the premise of average performance indicators. Experts concluded that in the future, new energy batteries are likely to coexist with hydrogen fuel power cells and lithium-ion power battery packs.

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