AESC Begins Mass Production of 46120 Battery Cells for BMW Neue Klasse Platform

AESC Group has officially started mass production of its new 46120 large cylindrical battery cells, marking a significant milestone for premium electric vehicle development. The newly manufactured cells will power multiple models built on the BMW Group's Neue Klasse platform, with the BMW iX5 confirmed as the first vehicle to use the advanced battery technology. The production launch represents an important step in supporting next-generation electric mobility with higher-performance battery solutions.

BMW Neue Klasse adopts advanced 46120 battery technology

The 46120 battery cell features a diameter of 46 mm and a height of 120 mm. Compared with previous battery cell formats, the new design delivers nearly 30% more usable energy per cell while reducing the number of components required inside the battery pack. This simplified architecture enhances overall system integration and gives vehicle engineers greater flexibility when designing future premium electric vehicles, particularly larger SUV models.

Improved energy density supports premium electric vehicles

The battery combines a high-nickel cathode with a silicon-doped anode, enabling an energy density of up to 310 Wh/kg. This configuration is intended to satisfy demanding requirements for driving range, vehicle performance, safety, and packaging efficiency. The battery cell has been specifically developed to meet the expectations of premium electric vehicles where high energy output and efficient space utilization are essential.

Mass production emphasizes manufacturing quality

Production of the new battery cells has commenced at AESC Group's advanced manufacturing facilities. To maintain consistent product quality, the production lines incorporate more than 1,000 CCD vision-inspection checkpoints throughout the manufacturing process. Every battery cell also undergoes 100% X-ray scanning to detect foreign objects, helping ensure high manufacturing standards before the cells are supplied for vehicle production.

Frequently Asked Questions

What are AESC's 46120 battery cells and why are they important?
The AESC 46120 battery cells are large cylindrical lithium-ion battery cells developed for premium electric vehicles on BMW Group's Neue Klasse platform. Measuring 46 mm in diameter and 120 mm in height, they provide nearly 30% higher usable energy per cell than earlier formats. They also improve battery pack integration, support greater vehicle design flexibility, achieve up to 310 Wh/kg energy density, and are manufactured using advanced quality inspection systems, including CCD vision checkpoints and full X-ray scanning.