from chemistry to pack
When we look at the battery pack design for a vehicle we want to minimise the overall weight and hence need the cells to work structurally as part of the pack design. This leads us to Thermally Conductive Adhesives (TCAs) as a means of fixing cells to cooling systems and bonding them into a battery … Read more
The conventional framing of carbon black in lithium-ion battery electrodes is electrochemical – it is an electronic conducting agent that enables the formation of the electrical wiring within an electrode. It has typically been specified by loading, surface area and subsequent powder or electrode resistivity. For wet slurry coating, this framing is broadly adequate. The … Read more
Exploring different battery tray designs in the automotive industry and three main design concepts have emerged in the design of metallic battery trays: Building on Posts from Matthias Biegerl [1] and Luca Greco [2]. Deep-Drawn Sheet Metal Pans This process involves forming the housing with deep-drawn sheet metal pans and sealing it with a lid. … Read more
How can we go about maximising pack energy density? What can we look at to reduce the mass and volume? Where are the opportunities given a defined cell? A great example of shrinking the size of a battery pack is the Mercedes Vision EQXX research car. The advantage they had was a much more energy … Read more
Recent industrial and academic studies have shown that aluminium cell housings can provide several benefits in terms of thermal management and gravimetric energy density in particular1,2,3. However, as Cell-To-Pack and Cell-To-Chassis approaches arise the battery cell and therefore, the battery cell housing, become part of the structure of the battery electric vehicle contributing with their … Read more
The 2022 Nissan Ariya has two battery pack sizes, 63kWh (66kWh total) and 87kWh (91kWh total). The vehicle is also available in 2WD and 4WD variants. The details around the battery specifications are very scarce and hence lots of gaps we need to gradually fill. However, I think this is worth sharing for the thermal … Read more