With the vigorous development of the new energy vehicle market, power battery technology is undergoing a profound change. In this context, Farasis Technology launched a large soft pack 6C ultra-fast charging battery system solution at the 13th China International Automotive Power System Summit, which not only marks a major breakthrough in the power battery technology of new energy vehicles, but also demonstrates the technical strength of Farasis Technology in response to rapid changes in the market.
1. Industry background: new energy vehicles have strict requirements for power batteries
The rapid development of the new energy vehicle market has made OEMs increasingly stringent in their requirements for power batteries, covering performance, cost, safety, upgrade iteration and other aspects. How to develop battery products that meet market demand in the shortest possible time and achieve efficient cost reduction has become one of the core challenges of all power battery companies. Consumer demand for long battery life and fast charging technology continues to drive the acceleration of product iteration, and the policy side is also continuing to release positive signals, including the continuation of financial subsidies and the improvement of infrastructure facilities, which together promote the rapid development of power battery technology.
2. Technological breakthrough: simulation ROM model and five-sided liquid cooling design
Farasis Technology optimizes the battery design through the self-developed simulation ROM model, improves the battery development speed and reduces the cost, and helps the large pouch battery achieve 6C fast charging at the system level. By simplifying the core parameters obtained by simplifying the single-factor working conditions, combined with the training of 3D thermal response data, the ROM model realizes the temperature prediction that is highly consistent with the 3D CFD simulation, and optimizes the battery design boundary in batches. In terms of full-scene adaptability, whether it is complex scenarios such as cell tab temperature monitoring or PACK-level cold plate distribution design, the prediction results are highly consistent with the measured data, especially in SOC time prediction, showing extremely high accuracy. In terms of efficiency, compared to the PACK fast charging simulation that takes 8-10 hours to complete with traditional commercial software, the ROM model can be completed in only 10 seconds.
In addition, Farasis Technology's ultra-fast rechargeable battery system solution relies on the SPS super large soft pack CTP system architecture, and pioneers the five-sided liquid cooling design (large surface + double narrow surface + double polar tabs), which improves the heat dissipation efficiency by 4-5 times. Through the three-in-one deep integration of cold plate, exhaust channel and structural parts, the energy density is improved, weight reduction and cost reduction are realized. At the same time, the five-sided plugging and bottom-oriented exhaust design are adopted to ensure that the single-cell level thermal runaway does not spread (NTP) and meet the upgrade requirements of 4C to 5C-6C.
Figure: Farasis Technology launched a large soft-pack 6C ultra-fast rechargeable battery system solution at the 13th China International Automotive Powertrain Summit
3. Performance advantages: the perfect combination of fast charging ability and safety
Based on the ROM+ fast charging optimization model, the two ultra-fast charging battery systems, ternary 5C and lithium iron 6C, can control the fast-charging temperature within 50°C. In the ultra-fast charging environment of 30°C, the time required to charge from 10% to 80% SOC was shortened from 11.8 minutes to 10.2 minutes (an increase of 13.5%), and from 10.28 minutes to 8.55 minutes (an increase of 16.8%), respectively, demonstrating excellent fast charging performance. This improvement in fast charging capacity can not only meet consumers' demand for fast charging, but also effectively alleviate the charging anxiety of new energy vehicles in long-distance travel.
At the same time, the solution constructs an efficient three-dimensional heat transfer system through the integrated integration of the liquid cold plate and the thermal conductive fins, which not only ensures the uniform distribution of efficient heat transfer and temperature, but also realizes the separation of heat and electricity through the thermal insulation function of the liquid cold plate and the directional exhaust design, which greatly improves the safety and operation efficiency of the battery system.
4. Market prospects: to meet the needs of the industry and promote market development
Farasis Technology's large soft-pack 6C ultra-fast charging battery system solution not only achieves a major breakthrough in technology, but also has great significance in market prospects. With the continuous expansion of the new energy vehicle market, the demand for power batteries with high performance, high safety and strong fast charging capacity is also increasing. This solution of Farasis Technology can meet the strict requirements of OEMs for power batteries and provide them with more competitive products.
In addition, the launch of this program will also promote the development of the entire new energy vehicle market. By improving the fast-charging capacity of the battery, the gap between new energy vehicles and traditional fuel vehicles in terms of convenience can be further shortened, and more consumers can choose new energy vehicles. At the same time, the efficient battery management system and safety design will also enhance consumers' trust in new energy vehicles and promote the healthy development of the market.
5. Future prospects: continuous innovation and full life cycle management
Farasis Technology officially said that it will create a real-time BMS software algorithm integrating ROM, ECM, life model and deep optimization algorithm to provide accurate real-time prediction of the whole life cycle of large pouch battery systems. This will further improve the efficiency of battery management, ensure the stability and optimization of battery performance, and bring customers more reliable, efficient and intelligent energy solutions.
This initiative not only reflects Farasis's continuous pursuit of technological innovation, but also demonstrates its emphasis on battery life cycle management. By monitoring and predicting the status of the battery in real time, potential problems can be detected in advance, timely maintenance and optimization can be carried out, and the service life of the battery can be extended and the cost of use can be reduced.
6. Summary: technology-led, market-driven, and the future can be expected
The large soft-pack 6C ultra-fast charging battery system solution launched by Farasis Technology is an important technological breakthrough in the field of power batteries. Through innovative technologies such as simulated ROM models and five-sided liquid cooling design, the solution has shown significant advantages in improving battery fast charging capacity, ensuring safety, and reducing development costs. In the context of the rapid development of the new energy vehicle market, this solution can not only meet the current market demand for high-performance power batteries, but also promote the continuous progress of the entire industry in technology. In the future, with the continuous innovation of Farasis Technology in battery management systems, we have reason to believe that it will occupy a more important position in the field of new energy vehicle power batteries and contribute to the green transformation and intelligent development of the industry.
