3.2v 280ah lifepo4 battery cell.Supported by Guoxuan LFP cylindrical cells JAC iEV7L power battery technology decoding

With the help of Guoxuan Hi-tech's power black technology, the new A0-class pure electric sedan JAC iEV7L has a comprehensive operating range of 302 kilometers, a service life of more than 600,000 kilometers, and a cost of only 8 cents per kilometer. "Long-term Longer life and safer” has become the biggest selling point of this new energy vehicle.

With the help of Guoxuan Hi-tech's power black technology, the new A0-class pure electric sedan JAC iEV7L has a comprehensive operating range of 302 kilometers, a service life of more than 600,000 kilometers, and a cost of only 8 cents per kilometer. "Long-term Longer life and safer” has become the biggest selling point of this new energy vehicle. The following article will reveal the mystery of JAC iEV7L power black technology.

190Wh/kg energy density battery + lightweight design

The lithium iron phosphate battery assembled in JAC iEV7L is provided by Guoxuan Hi-Tech. The system energy density is 140.24Wh/kg and the power capacity is 35.2kWh.

Gong Jiangang, vice president of Guoxuan High-tech Product Engineering Institute and technical director of the JAC project team, introduced that the iEV7L battery is composed of cylindrical cells with an energy density exceeding 190Wh/kg. It is currently the highest energy density of lithium iron phosphate in the industry and has a high cycle life. The service life of the vehicle exceeds 600,000 kilometers.

It is understood that in 2018, Guoxuan Hi-Tech completed the upgrade of the lithium iron phosphate monomer energy density from 170Wh/kg to 180Wh/kg production line, which can meet the cruising range of new energy vehicles of more than 400 kilometers.

In addition, the power battery system adopts a lightweight system design, using an aluminum alloy box and a high-strength fiberglass box cover, thereby reducing the quality of the battery system and providing superior battery performance.

Liquid cooling constant temperature technology

As we all know, the power source of pure electric vehicles is the battery pack, but in order for the battery to exert good power output, it must be ensured that it is in a suitable environment and the temperature cannot be too low or too high.

According to Gong Jiangang, iEV7L is equipped with the latest generation of liquid cooling constant temperature technology to achieve rapid heating and cooling. "This technology can control the temperature of the battery pack between 10-35°C, ensuring balanced heat dissipation and cooling of the battery pack, and greatly improving battery life. Even in an ultra-low temperature environment of minus 30°C, iEV7L can still charge normally, Drive.”

Long life + low fuel consumption = high cost performance

"The lithium iron phosphate battery cell material has low activity and stable structure. The battery cell has excellent cycle times and service life. It basically has a lifespan of 8-10 years as that of the entire vehicle." Wang Xiaoyang, general manager of Guoxuan Hi-Tech Passenger Vehicle Division According to the introduction, JAC’s first-generation vehicles were put on the market in 2011, and many users are still using them, which fully demonstrates the safety and reliability of lithium iron phosphate batteries.

"With the continuous advancement of technology, the specific energy of our lithium iron phosphate battery pack is equivalent to that of the ternary 622 system, and the lithium iron phosphate system can continue to increase the energy density and is expected to reach more than 200Wh/Kg." Wang Xiaoyang also calculated it for everyone on the spot. An economic account, "The fuel consumption of an ordinary A-class car is calculated based on 7L/100Km, and the cost is 52.5 yuan, while the power consumption of iEV7L per 100 kilometers is 12KWH, and the cost is 6.7 yuan. The price difference between the two per 100 kilometers is 45.8 yuan. If it is used at home , calculated based on driving 15,000 kilometers per year, it can save about 55,000 yuan in 8 years. If used for operation, calculated based on driving 100,000 kilometers per year, it can save about 230,000 yuan in 5 years."

JAC New Energy also introduced that the iEV7L battery cell warranty is 8 years/500,000 kilometers. Rough calculation means that the usage cost per kilometer is only 8 cents, and the maintenance cost is low.

In addition, according to users, in fast charging mode, iEV7L can complete 80% of the charging task in 40 minutes, and can drive 40km in 10 minutes of charging, which better solves battery life anxiety.