GAC Group demonstrates sponge silicon negative electrode battery technology! 904km range

Recently, GAC Group demonstrated its sponge silicon negative electrode sheet battery technology at its 2021 Investor Open Day event. The AION LX, a vehicle equipped with this battery technology, can achieve a comprehensive range of up to 1,000 km.

It is reported that the single cell using sponge silicon negative electrode battery technology can reduce the volume by 20% and the weight by 14% at the same power. The energy density of the cell exceeds 280Wh/Kg, and it can achieve an ultra-long range of 1,000km when installed on the AION LX.

In early July this year, the AION LX equipped with sponge silicon negative electrode battery technology completed the summer high temperature test. The test site was located in Sanya, Hainan, with an average temperature of 36°C (surface temperature of nearly 60°C) and an average humidity of nearly 90%, which truly simulated the use of vehicles and users in high temperature and high humidity environments.

After several days of continuous testing, the vehicle underwent multiple calibration and test verifications, including battery thermal management efficiency, battery state of charge estimation accuracy, high, medium and low power performance, high-temperature charging speed, comprehensive endurance, and charging pile matching adaptability. All tests achieved the design goals and showed excellent performance.

In terms of cruising range, with the air conditioner kept on, the AION LX's actual comprehensive road range reached 904km, and the vehicle's high-temperature calibration and testing were successfully completed.

In terms of fast charging technology, GAC demonstrated 6C charging rate technology at the Aion charging station, achieving 80% charging in 8 minutes, and its capacity retention rate was still as high as 95% after 1,600 cycles.

It is reported that the battery with silicon negative electrode technology will be used in the AION LX model, which is expected to be put into production this year. In addition, it was revealed that GAC will deploy and build its own supercharging stations.