As a core favorite in the field of new materials, the application of carbon fiber in the drone industry is undergoing a profound upgrade from simple lightweighting to functional integration. In November 2025, a domestic university professor led a team to publish significant research findings in the top international journal Advanced Materials, successfully developing a carbon fiber structural supercapacitor. This achieves the integration of drone structure and energy storage, transforming the carbon fiber fuselage from merely a “lightweight skeleton” into an “energy storage battery.” This breakthrough resolves the long-standing “endurance versus payload” dilemma faced by the drone industry and opens a new赛道 for carbon fiber applications in the low-altitude economy.
The rapid development of the drone industry has led to its increasingly widespread application in fields such as logistics distribution, aerial inspection, and emergency rescue. However, the pain points of short endurance and low payload capacity have consistently constrained industry upgrades. Currently, mainstream drone fuselages commonly utilize aerospace-grade carbon fiber composite materials, which have a density only 1/4 that of steel but possess seven times the strength, achieving极致 lightweighting—a 10 kg metal fuselage can be replaced with just 2.5 kg of carbon fiber. Yet, conventional battery systems have become the biggest “stumbling block.” For a logistics drone with a 5kg payload, the battery itself weighs 3kg, accounting for 60% of the total, requiring an additional 0.5kg of counterweight to maintain balance. Many companies, striving to increase range by 5 kilometers, are forced to reduce cargo load by 1 kilogram. This无奈 “trade-off” has become a common challenge in the industry.
Faced with the current bottleneck in conventional R&D approaches focused on increasing battery energy density, the professor led his team to explore a new path. Based on the concept of “structural energy storage integration,” they proposed the innovative idea of enabling the drone’s fuselage structure itself to possess energy storage capabilities. During the team’s research and development攻坚, a 2023 master’s student innovatively combined carbon fiber electrodes with an epoxy resin-based solid electrolyte, attempting to create a novel component capable of simultaneously bearing loads and storing energy. This allows the drone’s wings and fuselage to become “bifunctional components” that provide both structural support and electrical power.
During the research and development process, the team overcame multiple technical challenges through nearly a hundred experiments. Among these, the electrolyte formulation emerged as a core difficulty. This special “conductive adhesive” needed to ensure excellent electrical conductivity while possessing sufficient mechanical strength. The team once experienced a 30% drop in charge storage capacity due to minor deviations in ingredient ratios, caused by the influence of laboratory humidity. To find the optimal formula, the team conducted repeated调试, ultimately preparing the key material using a one-step high-temperature mixing hydrothermal method, combining it with a specific electrolyte ratio, and fabricating it under stable temperature and humidity conditions to successfully develop a compliant sample. The newly developed carbon fiber structural supercapacitor has achieved multiple breakthroughs in performance, fully demonstrating the technological potential of carbon fiber materials. Team tests show that a 10 cm square sample can maintain over 80% of its charge capacity when subjected to the常规 pressures experienced by a drone wing. While普通 energy storage devices see a significant drop in capacity under pressure, this material’s internal bonding becomes tighter and electrical transmission smoother when compressed, exhibiting a “more stable under stress” characteristic. Furthermore, the material possesses exceptional damage resistance; even if scratched by a blade or drilled with a drill bit, it does not short-circuit and continues to function normally. This means that if a drone suffers a collision or scrape during operation, the energy storage system can continue to operate, buying valuable time for an emergency landing. Additionally, this device supports flexible scaling. It can be combined according to需求 like “building blocks”—connected in series to achieve higher voltage or in parallel to increase capacity—adapting to the usage requirements of drones in different scenarios.
More critically, this carbon fiber structural supercapacitor successfully resolves the core conflict between endurance and payload. It significantly reduces the battery weight proportion for a traditional 5kg payload drone from 60%, achieving dual improvements in weight reduction and energy storage through structural integration. According to team simulation data, for an existing drone with a 5kg payload and 20km range, applying this technology could reduce battery weight from 3kg to 2kg, increase payload to 7kg, and extend range to 30km. This enables a single drone to accomplish the operational tasks of two conventional drones, effectively doubling operational efficiency. Furthermore, the material exhibits excellent performance in low-temperature environments, retaining over 80% of its performance even at temperatures below minus thirty degrees, further expanding its application scenarios. This technological breakthrough not only brings disruptive change to the drone industry but also elevates the application value of carbon fiber in high-end manufacturing. Beyond drones, this technology can be extended to aerospace fields such as satellite solar panel supports and aircraft cabin walls, achieving dual effects of structural weight reduction and power supply energy storage. It also holds broad application prospects in new energy, high-end equipment manufacturing, and other sectors. As a core material in the lightweight field, this innovative application of carbon fiber in energy storage functionality represents a deep integration of materials research and engineering technology. It also confirms the development trend of carbon fiber evolving from a “single-performance material” to a “multi-functional integrated material.” In the future, as carbon fiber structural energy storage integration technology continues to improve and achieve commercial implementation, it will inject new momentum into the development of the low-altitude economy, aerospace, and other fields. Carbon fiber will further play its core role as the “king of new materials” in more high-end manufacturing sectors, driving dual leaps in lightweighting and performance across various industries. Taishi Technology, as a tech enterprise dedicated to the R&D and manufacturing of high-quality carbon fiber products, has深耕 the carbon fiber field for many years. With a professional R&D and production team and comprehensive full-chain solutions, the company provides lightweight, high-performance carbon fiber products and technical support for multiple fields including aerospace, drones, and new energy, helping various industries seize the innovation opportunities presented by carbon fiber materials and achieve industrial upgrading.