A thermal runaway risk warning scheme for power batteries

Abstract

With the rapid development of electric vehicles, the safety issues caused by overheating of power batteries are increasing, and even affecting the users' lives. Based on this, the state has issued relevant policies requiring measures to inform users before power batteries thermal runaway occur. In this paper, a set of early warning scheme for thermal runaway of power batteries based on DCF is designed. The core of this scheme is the monitoring algorithm of DCF integrated power batteries system, which combines the relevant information of DCF to actively push early warning information to vehicle users and restrict related activities within a certain period of time. In addition, a maintenance manual is generated for risky vehicles for maintenance personnel to use, so as to reduce the risk of thermal runaway caused by power batteries in the above way.