Akamodule battery module has extended 50% service life

2022/04/08

  Author :Iflowpower – Portable Power Station Supplier

According to foreign media reports, after the 8-month durability test, Germany high-performance battery system supplier Akasol claims that the latest lithium-ion battery module Akamodule (divided into 46AH and 53AH) can withstand each Extreme condition. The test results show that the battery is extremely uniform because the module uses liquid cooling (due to internal development), the battery is extremely uniform, and the battery life can be extended by 50% when compared with the specifications of other manufacturers. If the battery is applied to the pure electric bus, even if the mileage exceeds more than one million kilometers, the battery can continue to use.

The lithium ion battery module is usually used under ambient conditions at 25 ¡ã C, due to its optimum performance, the battery module can still be used at a limit temperature of 50-55 ¡ã C. Akasol Project Management, Test and Services Head of Bj?rneberleh said: "Even after two versions of the 46Ah and 53Ah have experienced 8,000 and 3000 full load cycles, the battery module can still be maintained. 80% of the initial capacity.

Even if only 30% of the residual power is left, the battery module is still able to run, so the total amount of full load cycle should reach 15,000 times. Another result of the test is that the deterioration of a single cell is uniform, and the result is satisfactory, which will significantly reduce the capacity loss on the assembly line, which means that the battery life can be extended longer. "In the indoor test environment, the Akasol engineers put two versions of the 46AH and 53AH, tested under extreme conditions.

In the test environment of 50-55 ¡ã C and 100A constant load, the battery assembly can run a full cycle of 15 years. The difference between battery capacity, electrical core voltage, and internal resistance confirms the previous prediction of battery experts. In some applications, its performance performance will exceed expectations.

In fact, due to differences in battery production, various operations are not the same, and when charging is performed in a particular energy storage device, the charging of each of the batches will become uneven. To this end, the battery management system must ensure that the charging state of each of the batches reaches the same level. In the multi-cell battery, this power balance mode makes the capacity of the entire system are fully utilized, and the service life is longer.

The battery module has a high integrated integration, and the energy density of Akamodule reaches 140Wh / kg, so that the mileage of the vehicle is longer, and the durability is better. Akamodule uses water-ethylene glycol mixed with coolant. Previously, the production of the module and the integration of the mixture were extremely complicated, and later found a new manufacturing method for simplification, resulting in a significant decrease in the volume of the batte.

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