The global supercapacitor market is projected to reach US$4.86 billion by 2036, according to a new report from IDTechEx titled Supercapacitors 2026–2036: Technologies, Applications and Forecasts. The report highlights steady growth driven by automotive, industrial, and power grid applications.
Supercapacitors, also known as ultracapacitors, offer a unique balance between the high energy density of lithium-ion batteries and the high power density and cycle life of capacitors. They are particularly suited for applications requiring rapid charge-discharge cycles, such as hybrid vehicles and uninterruptible power supplies (UPS).
There are three main types of technologies, distinguished by their charge storage mechanisms and electrochemical properties, including energy density, power density, and cycle life.
While electric double-layer capacitors dominate the market, hybrid and pseudo-capacitors are emerging technologies that combine capacitive and faradaic storage mechanisms. These innovations are expected to drive future growth, especially in power grid applications.
IDTechEx forecasts a shift in focus from automotive to grid-based energy storage, as hybrid vehicles decline and renewable energy systems expand. Despite challenges in energy density and cost per kWh compared to lithium-ion batteries, supercapacitors remain vital in high-power niches.
The market is expected to grow at a CAGR of 15.3% over the next decade, supported by technological advancements and expanding use cases.
Image: Charge storage mechanisms in supercapacitors. Credit: IDTechEx
