This TechLetter aims at presenting in a simple and didactic way the complex topic of functional safety assessment and its application to batteries. This topic is covered by several standards, most of which are derived from ISO 61508. We will here focus on 2 standards:...
In this new TechLetter, we will focus on the case study of a battery in a fuel cell system. In an hydrogen vehicle, the fuel cell produces electricity to power the electric motor by consuming hydrogen as a fuel. There are numerous fuel cell technologies but we will...
This TechLetter will focus on the Battery Management System (BMS) and all associated functions. WATTALPS has developed internally its Full BMS solution adapted for demanding mobile applications, mastering the specification, the hardware design, the software...
Source : “Thermal Runaway Mechanism of Lithium Ion Battery for Electric Vehicles: A Review” X. Feng, et al Tsinghua University – Beijing Internal short circuit and thermal runaway As explained in the WATTALPS TechLetter on lithium-ion battery safety, the thermal...
Factors influencing the aging of lithium-ion batteries The main factors influencing the aging of lithium-ion batteries are : The number of cycles (charge/discharge) This is the most commonly used factor to chose a battery since it permits to estimate the return on...
Lithium-ion battery safety is not a simple topic. What are the risks when using lithium-ion batteries? How to prevent any safety issue? Risk linked to the use of a lithium-ion battery When submitted to increasing temperatures, whatever the chemistry, there is a...
