British R&D New Ceramic Capacitor Improves Hybrid and Electric Vehicle Energy Efficiency

Scientists from the National Physical Laboratory in the UK have created a groundbreaking lead-free, high-temperature ceramic capacitor that promises to boost the energy efficiency and reliability of hybrid and fully electric vehicles. This innovation could play a crucial role in advancing the next generation of electric mobility solutions. Electric vehicles, whether hybrid or fully electric, rely heavily on efficient energy conversion and advanced battery management systems. The global market for automotive power electronics is valued at around $61 billion, and one of the main challenges for manufacturers is managing the thermal performance of electronic components. Power electronics in vehicles must operate reliably under extreme conditions, often requiring complex cooling systems. These systems not only add weight to the vehicle but also reduce overall energy efficiency and system stability. To address this issue, the British Technology and Strategy Committee funded a project called HITECA (HIgh TEmperature CApacitor), with the goal of developing high-energy-density ceramic capacitors capable of functioning effectively above 200°C. Current capacitors used in electric vehicles typically operate stably only below 150°C, limiting their performance in high-temperature environments. The new material developed by the HITECA team reduces the need for heavy cooling systems, thereby decreasing vehicle weight and improving energy efficiency. Its high permittivity also allows for smaller component sizes, reducing internal friction and enhancing the overall performance of electric vehicles. In comparison, capacitors made from materials like barium titanate can suffer from up to 85% power loss at operating voltages. Beyond the automotive sector, HITECA’s technology has potential applications in aerospace, power generation, and even the oil and gas industry. "Industrial-grade electronic components must perform reliably in extreme conditions," said Tatiana Correia, the project leader at the National Physical Laboratory. "HITECA capacitors are designed to withstand higher temperatures than traditional ones, helping electrical systems become more robust and overcoming key technical barriers in the electric vehicle industry."

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