An electric vehicle's range and safety depend heavily on its battery's thermal management system. However, EV battery packs generate a significant amount of heat during charging and discharging. If this heat isn't effectively dissipated, it can lead to "thermal runaway" and cause serious safety incidents.
Traditional FR-4 substrates have poor thermal conductivity and can't meet the high heat dissipation needs of EV battery modules. For this reason, the industry is shifting to aluminum substrates, which have much better thermal conductivity.
An aluminum substrate uses its aluminum core layer to quickly absorb and evenly transfer heat generated by battery components. The heat is then efficiently expelled through heat sinks or a liquid cooling system. This not only effectively prevents localized overheating but also ensures the battery operates within its optimal temperature range, which extends battery life and significantly boosts the vehicle's overall safety and performance. The aluminum substrate has become a key technology for solving EV battery thermal management issues.
