Designing functional and reliable custom EV battery pack

Views: 297     Author: China Lithium Ion Battery Factory     Publish Time: 2022-03-22      Origin:

Designing functional and reliable custom EV battery pack

Today, we are seeing a very wide usage of lithium-ion cells in hybrid and electric vehicles. This chemistry is not new, but new things are incorporated into it every other day, making it a superior batter option compared to the others. In the lithium-ion world, many chemistries are available, and they have different properties which depend on the application. The chemistries are temperature sensitive in terms of safety and performance.

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The custom EV battery packs usually have some dynamic responses within the cells. The packs can be optimized and simulated to meet some of the specifications that could be required. This is usually made possible through some complex mathematical models as well as experience. Testing has to be done effectively to ensure that all the model parameters are adjusted.

Composition of EV battery packs

A battery pack comprises battery cells. They are the smallest battery system elements as far as electrical circuit is concerned, which defines the battery behavior. It is up to the suppliers to formulate the chemistries that they want. After that, you can pick the custom battery pack you need for your specific application. The factor that determines cell selection is capacity and discharge rate. The selection process also involves a lot as many things have to be considered before making a choice. The cell quality can determine how fast the battery will age. Cell aging can cause self-discharge, decreased capacity, and increased impedance.

The cells need to be tested to know all the working parameters they have. The battery pack has to be dimensioned. Circuit models are also used to predict the cell systems behavior. Cells can be characterized to access information.

Mechanical design and modeling of custom EV battery packs

There are different ways of accurately modeling battery systems combined with electrical modeling of the battery system. This also depends on the project requirements. The design has to be done concurrently between the mechanical and electrical design.

Material selection is also very important so that the electrical performance specs are achieved. It is always important that the custom EV battery pack meets the reliability and quality needed.

Most EV battery manufacturers develop some basic cell models. The tools are important because they predict the battery behavior and also allow proper system dimensioning. The most basic unit is the cell which is often combined within a pack to develop a battery. The lithium-ion cell stands as the ingredient controlling the pack's performance, but how the cells are arranged determines how the entire pack will behave.

Some companies arrange the cells in cradles coming up with a battery pack, but others can use analytical models to come up with a pack. These tools have great potential, and most manufacturers improve the models and testing to come up with the most efficient design in terms of durability, volume, and cost. Manufacturers ought to be able to perform the electrical and mechanical battery design. The aspects are interrelated, and getting some accurate date to adjust the model can be a great way to simulate and understand the behavior of the battery pack.

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The manufacture ought to know the best ways to simulate a battery pack's performance. Picking the best custom EV battery pack can make a great difference in how efficient and functional it is at the end of the day.For more about custom EV battery pack,you can pay a visit to JB Battery China at for more info.

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JB BATTERY has over 10 years experiences in designing and manufacturing lithium battery, also is become one of the best Lithium ion Battery Manufacturer in China. We also design and develop BMS communication protocol like 232,485 and CAN BUS ect. All our lithium batteries are equipped with Deep Sleep Function now.

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