BMW has announced the debut of its new electric vehicle battery technology, promising a 30% increase in range and a 30% boost in fast DC charging speed.
According to Carbuzz, BMW will be implementing several upgrades to its newest battery technology, expected to feature in the Neue Klasse line-up, including the new i3 sedan and iX3 SUV. The BMW Gen6 battery is anticipated to offer a range over 30% higher than that of current models such as the BMW i5 and iX. Additionally, fast DC charging speeds are also set to increase by 30%. During a visit to the battery factory in Landshut, Germany, BMWBlog uncovered insights into how the German automaker aims to achieve these goals.
The Gen6 batteries in the Neue Klasse electric vehicles will boast higher energy density, achieved through the adoption of cylindrical battery cells, which replace the prismatic cells used in current products. BMW will offer small battery cells with a diameter of 46mm and two different heights (95mm or 120mm), depending on the vehicle’s application. Instead of being arranged in separate modules, these battery cells will be directly integrated into the battery pack, reducing weight and size while enhancing efficiency and increasing interior space.
The battery will also be an integral part of the Neue Klasse models’ structure. While batteries in current BMW electric vehicles are housed in a separate casing, the new models will employ a “pack-to-open-body” structure, where the rigid outer frame of the battery will serve as a load-bearing structural component. This design reduces complexity and weight while enhancing rigidity and crash performance. BMW even suggests that this setup will offer improved protection in collisions, as the battery creates a completely flat underbody, making future electric vehicles more aerodynamic.
The modified battery structure will also operate on an 800-volt system, replacing the current 400-volt system, enabling faster DC charging. While BMW has not released official figures, they have acknowledged that it will be 30% faster than the Gen5 battery (currently offering 205 kW charging power on the 2025 BMW i4). This suggests that the fast DC charging power could reach 267 kW, an improvement over current BMW models. BMW states that the new electrical system will add 300 km of range in just 10 minutes of charging, double the current claim for vehicles like the i7 and i4.
In terms of range, the new battery layout will contribute to a more efficient electrical system, simpler structure, and reduced weight, collectively improving the range by 30%. According to the WLTP cycle, the BMW models with the longest range could achieve 800 km on a single charge, although this may decrease to around 640 km in EPA testing. Nevertheless, the increased range will make the Neue Klasse electric vehicles more competitive, especially considering that even the affordable Hyundai Ioniq 6 can manage 550 km on a single charge.
References: Carbuzz
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