At the heart of the Cayenne Electric is a function-integrated high-voltage battery with a gross energy content of 113 kWh. It is directly integrated into the vehicle structure and, in addition to storing energy, also acts as an integral structural component. This results in significant advantages in weight and packaging; the ratio between cells and battery housing has improved by 12% compared to the second-generation Taycan battery. Integration of the battery into the body structure also increases vehicle rigidity and further lowers the car’s center of gravity – both essential factors for driving dynamics and precision. The battery therefore contributes to the agile handling of the Cayenne Electric. Porsche is also setting new standards in the field of passive safety; the battery modules are made of a specially developed aluminum profile that absorbs energy in a targeted manner and protects the cells in the event of an impact.

Cell chemistry and energy density: peak efficiency

For maximum energy density and charging capability, Porsche uses a lithium-ion battery with six interchangeable modules and 192 large-format pouch cells. The cells consist of a graphite-silicon anode and a nickel-manganese-cobalt-aluminum cathode (NMCA). The high nickel content of 86 per cent ensures maximum energy density, while silicon in the anode significantly enhances the fast-charging capability. Aluminum increases the rigidity of the cell structure. The result: seven per cent higher energy density compared to the current Taycan battery, while also increasing charging efficiency.

Double-sided cooling: the key to sustained performance

“A key element of the high-voltage system is the innovative cooling system, which regulates the temperature of the battery from both above and below. This dual cooling allows precise control of the temperature window and ensures that the battery always operates in the optimal range – regardless of the weather, charging power or driving style. The cooling capacity corresponds to that of about 100 large household refrigerators. For the first time, energy-efficient pressure fans will be used, which consume around 15 per cent less energy than conventional suction fans. The result is a consistently high charging capacity and high performance with minimal energy loss – a key element of the overall efficiency of the new Cayenne,” Porsche said.