60V-120V20A-200A Power Battery Pack Energy Feedback Charge and Discharge Test System

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Shenzhen Bainaxin Technology Co., Ltd

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Generally speaking, aging cabinets are used to simulate how long lithium batteries can be used in our daily life. For example, we produced a battery pack for an electric vehicle, but the produced battery pack cannot be sold directly. Customers usually ask how long it takes for the battery pack to be fully charged, you know the data needs to be tested and measured, so we can use the equipment - the battery aging cabinet, to simulate how long it takes for the battery pack to be fully charged once and how long will the power last.

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What is the function of the aging cabinet?
In the past, burn-in generally referred to battery assembly, and placement after the first charge after the oil filling was completed. It can be aged at room temperature or high temperature. Its role is to stabilize the properties and composition of the SEI film formed after the first charge. There are electrochemical kinetic changes in the aging process, which is of great help to the stability of SEI and can promote the stability of the electrochemical system.
With the rapid development of the battery industry, the definition of battery aging is also quietly changing. Due to the high requirements on batteries, in theory, the four steps of battery forming, capacity tester, testing, and aging all require battery aging, and the PACK assembly line also requires battery aging cabinets.
Large, medium, and small combination aging cabinet.
Therefore, the so-called battery aging cabinet is not a specific device, but a system, which runs through the process of formation, dispensing, testing, aging detection, and other processes in battery production, with both differences and connections. Secondly, the battery manufacturing process and battery materials of different battery factories are different, so the functional requirements of the battery aging cabinet are also different. Therefore, the current battery aging cabinet needs to be tailored.
In actual use, considering that the production capacity is inconsistent with market demand, some battery factories have adjusted the aging steps in order to increase production capacity while ensuring quality. The parameters that need to be adjusted for each production line mainly include temperature, space, time, and sequence, which are designed according to the characteristics of the battery. The trays, logistics lines, and dimensions of the battery cabinets are also customized according to the size of the batteries.

Power Battery Pack Application Field

In fact, the principles are similar. One of the reasons is to completely wet the electrolyte. On the other hand, some active components in the positive electrode active material are deactivated through some reactions, making the overall performance of the battery more stable. Many companies want to do this process and accelerate it through high-temperature aging, but high-temperature aging requires attention to control time and temperature.

Because high-temperature aging will cause more active material degradation than normal temperature aging if it is well controlled, the active components will react completely, the battery characteristics will be stable if the adverse reaction is controlled excessively, the electrical performance will decrease, the capacity will decrease, IR will increase, and even leakage The odds are high.

Power Battery Pack Features

Energy flows in both directions, and the efficiency of discharging energy back to the grid is ≥93% (DC bus efficiency).
The DCAC module adopts space vector modulation technology, digital control, and a reliable grid-connected inverter.
The DCDC module adopts advanced PID control technology and multiple software and hardware protection mechanisms to ensure the stability of equipment operation
Fast switching of output current, no current overshoot, avoiding the impact of equipment on the battery pack, and supporting battery aging tests on the same port and different ports.
Charge and discharge status LED indication, charge, and discharge curve analysis chart, support code scanning function.
Both the middle computer and the lower computer use 32-bit ARM chips for bus communication, with fast data transmission and stable performance.