For the first time, ER6 is equipped with an innovative large-scale battery pack scheme, using 523 batteries from Amperex Technology Co., Ltd. to achieve energy density as high as 180Wh/kg.
At present, the size of existing standard modules can not meet the needs of high-end electric vehicles. The most widely used 355 standard module is too small and the space utilization rate is poor. Although the size of 590 module is large, it is not suitable for the existing layout space and loses the flexibility of standard batteries.
The battery pack carried by the ER6 adopts a customized large module scheme, which decomposes multiple standard modules and integrates them again. The number of parts in the large module package scheme is greatly reduced, and the space required for installation and connection of parts is reduced, so the space available for arranging batteries is obviously increased.
Officials say its volumetric energy density has increased by 34%. Through the design idea of integrating large modules, the volume energy density of battery pack is increased by 34%. For the same size battery pack, the battery energy (1/3C) is increased from 54.3kWh to 72.7kWh, an increase of nearly 20kWh.
The mass and energy density increased by 65438 05%. The battery pack also uses an integrated cast aluminum tray to integrate the cooling plate with the frame. Considering the cooling and heating functions of the battery, the strength of the battery frame is ensured, and the integration efficiency is further improved. With only 523 batteries, the energy density of the battery pack can reach 180Wh/kg, which is 15% higher than that of the previous generation.
In addition, compared with the previous generation products, the number of parts of ER6 large module battery is reduced by 22%, which meets the requirements of lightweight and has sufficient weight space.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.