The primary focus of this study is the reduction of sensitivity to contamination of the

battery pack surfaces. During the project, information on adhesion mechanisms that

cause particles to accumulate on surfaces has been collected through literature research.

This has been done to create a fundamental understanding regarding the factors that

affect dust and particle accumulation. In addition, an in-depth study of articles

concerning the modification of surface structure has been carried out. In connection

with the literature study, an experimental analysis was carried out where a number of

surfaces provided by Scania were examined to understand their structure and properties.

This was done in order to identify suitable surface treatments/methods that could be

applied. The experimental results show that all the surfaces consist of only micro-level

structures. Two of the samples showed increased risk for dust accumulation due to one

of them having a step profile and the other having a wavy surface structure with peaks

and valleys.

Previous research suggests that surfaces that are structured on the micro- and nano-level

are essential to achieve dust- and particle-free/repellent surfaces. By structuring surfaces

at the micro- and nano-level, a so-called hierarchical structure inspired by the natural

self-cleaning mechanisms of the lotus leaf can be achieved. This results in surfaces with

a high water contact angle and low surface energy, which contribute to minimized

adhesion forces and in turn particle repellent surfaces.