from chemistry to pack
Peak vs continuous power is a recurring question across the electrification space. We need to deliver a repeatable amount of power for the user to have confidence in the machine and we need high power numbers to deliver the brochure wow factor. The transient peak power works well for a number of vehicle applications. However, … Read more
IP Ratings or Ingress Protection ratings are designed to rate and grade the resistance of enclosures of electric and electronic devices against the intrusion of dust and liquids. Plus how easy it is for individuals to access the potentially hazardous parts within the enclosure. The IP rating used for battery packs depends on the specific … Read more
Battery pack Ragone plot is power density versus energy density. There are a number of key battery metrics and this one is great to see where a design sits on the Power vs Energy Density Curve. Note that the power is the peak power of the pack available for 10s. You could also plot the … Read more
Author: David G. Kilburn & Nigel Taylor As I posted the other day, there are a lot of “boring” battery topics that often get overlooked and producing the battery housing (sometimes referred to as battery tray or box) is no exception! To house a battery you need a high quality, leak proof container that can … Read more
When connecting cells in parallel all of the negative terminals are connected together and all of the positive terminals are connected together. The capacity of the parallel group is the sum of the capacity of the cells. Hence three 5Ah cells connected in parallel will give a total capacity of 15Ah. 3 cells connected in … Read more
Simply a parts List for a battery pack as a useful checklist. This Parts List for a Battery Pack is meant as a check and is not the definitive list. The full parts list will depend on the design and the application. Battery Pack Sizing In simple terms this will be based on the energy … Read more
When we look at automotive battery pack design there have been a number of pack generations. The general theme is to simplify and hence reduce the cost. Initially we saw packs built from small modules of around 12 cells. The next step in pack generations is possibly going to be a cell to vehicle design. … Read more