Semi-solid batteries to power affordable Chinese EVs promising 334-mile range
As part of a media event on Thursday, MG's division general manager Chen Cui announced that the upcoming MG4 electric hatchback will be the world's first budget EV to feature a semi-solid-state battery, a technology until now limited to premium or concept cars.
The new MG4 will debut on August 5. The battery, supplied by QingTao Energy, uses only 5% liquid electrolyte, improving safety and stability. MG adds that the model has passed strict safety tests, including a full 360-degree puncture test.
MG also claims that in cold temperatures of 19.4°F, the battery retains 13.8% more range than traditional lithium-iron-phosphate (LFP) batteries, a significant advantage for drivers in colder climates, where battery efficiency and range typically decrease.
Semi-solid battery boosts range and safety
The innovative battery technology that the new MG4 uses combines the advantages of solid-state and traditional liquid batteries by incorporating a semi-solid electrolyte. This design significantly enhances safety, energy density, and durability.
Compared to conventional lithium-ion batteries, semi-solid-state batteries lower the risk of overheating and fires while providing longer driving ranges and faster charging times. The battery on MG4 is estimated to deliver a range of 334 miles and has an energy density of 180 Wh/kg, enhancing performance for everyday drivers.
The vehicle is equipped with a 70 kWh battery pack that powers a 120 kW electric motor mounted at the rear, offering a rear-wheel-drive setup with a single motor. The MG4's rear-wheel drive and balanced power output may appeal to drivers seeking a sportier and more engaging electric hatchback experience.
This configuration could provide better driving dynamics and performance compared to some competitors. For example, the BYD Dolphin's base model uses a front-wheel-drive system with a 70 kW motor, while higher trims offer a more powerful 150 kW motor.
Tech upgrades, aggressive pricing to rival competitors
The updated MG4 is larger than the previous model and its competitors. It measures about 14.4 feet long and 6 feet wide, with a wheelbase of 9 feet. By comparison, the BYD Dolphin is smaller, at 14 feet long and an 8.9-foot wheelbase.
The MG4 is also expected to aggressively complete with the BYD Dolphin in terms of price, as per the announcement made Chen Cui at the event.
Furthermore, the new MG4 will also introduce the MG×Oppo cockpit system, created through a collaboration with Oppo. This advanced system seamlessly connects smartphone features to the car's interface, allowing drivers to use voice commands, navigate with gestures, and sync their phone apps for a more connected driving experience.
Production of the new MG4 has officially begun at parent company SAIC Motor's state-of-the-art manufacturing plant in Nanjing, China, marking a significant milestone as the group prepares for the model's highly anticipated launch in August.
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