In order for electric vehicles to be accepted by customers around the world, automobile manufacturers must ensure that criteria like a satisfactory distance range and life span are met. A high distance range and rapid charging times, however, require high load currents, which in turn increase the risk of relevant components like batteries or charging plugs overheating.
Platinum thin film SMD technology enables drift-stable long-term use
In light of these technical challenges, Heraeus’ platinum thin film sensors ensure reliable temperature control and guarantee high long-term stability at measured ranges of up to 300°C. Measured temperature data is recorded with great precision throughout the expected life span. The SMD type of assembly brings advantages with respect to performance and life span.
“Heraeus sees platinum temperature sensors as a key component in being able to make full use of potential advances in technology and thereby ultimately leveraging e-mobility,” says Dr. Gerold Kerkhoff, Head of Heraeus Emerging Business Sensors.
Batteries – leaving performance limits behind
The less accurate temperature control is in batteries, the greater the safety buffers required to protect the battery from being overloaded. That in turn has detrimental effects on range and efficiency of performance.
Platinum thin film sensors are extremely precise and, because of the material from which they are made, very stable at high temperatures, thereby ensuring accurate measured data throughout the life span. With optimized coupling and an appropriate choice of casing, they ensure that critical temperatures can be detected early on. Batteries can therefore be operated near their specification limits without damage. That leads to increased safety, better performance and a longer life span.
Charging plugs – high charging performance for short charging times
This requirement, in turn, means high load currents. To prevent the risk of overheating and avoid damage in the contact area, integrated platinum sensors measure heat development in real time and analyze the data. In order to optimally control charging performance, platinum sensors ensure a high level of safety in this area of application as well.
High-performance electronics – more power with lower energy consumption
High-performance electronics modules are responsible for energy distribution and energy management in electric vehicles. The long-term stability and precision of platinum sensors at high temperatures makes it possible to work near high-performance chips’ load limits. This leads to a clear improvement in performance with lower energy consumption. At the same time, the high temperatures used open up new possibilities for the use of cutting-edge materials systems based on silicon carbide (SIC) and gallium nitride (GaN). Specially developed sinterable SMD temperature sensors also support innovative production methods and more compact designs.
Electric motors – new construction type requires reliable temperature control
In electric motors, high-performance electronics are located very close to the motor, meaning all the components get heated up. Pt sensors, with their stable drift behavior and great temperature-measuring accuracy, create optimal conditions for protecting this essential and very valuable module throughout its entire life span.
In the area of e-mobility, Heraeus platinum temperature sensors ensure precise, stable temperature control and thereby help maximize performance efficiency. “Anyone in a position to use precise temperature measurements to fully maximize battery or motor performance without a safety buffer will be able to provide their customers more than the competition,” emphasizes Gerold Kerkhoff.
Visit us at our exhibition booth:
Sensor + Test 2018
The Measurement Fair
06/26 - 06/28/2018
Nuremberg Exhibition Center
Building 1, Booth 1-440