The appearance appearance: Since the Li-ion-rechargeable batteries operate everything from smartphones to electric cars, their borders are increasingly clear. Repeated fears of shipping and environmental for lithium and disposal of the batteries have pushed researchers to search for alternatives.
A team led by SU-Lil In, a professor at the Daegu Gyeongbuk Institute of Science and Technology in South Korea Growth An innovative solution: nuclear carbon nuclear batteries that can last for decades without the need to recharge. The professor presented the results of his team at the 2025 Spring of the American Chemistry Association, which was held on March 23 – 27.
The research deals with the increasing demand for strong and sustainable energy sources, as connected devices, data centers and advanced technologies continue to pay the capabilities of Li-Iter batteries to their borders. “The performance of the Li-ion batteries is almost saturated,” in clarifying the reason for its team turning into nuclear batteries as an alternative.
RadioCarbon provides many advantages on other radioactive materials: it is inexpensive and easily available as a secondary product for nuclear power plants, and easy to recycle. More importantly, it is unusually slowly decomposing, with half of the age of 5,730 years.
Nuclear batteries are generated by electricity by harnessing high -energy molecules emitted during radioactive decomposition of some materials. Unlike traditional nuclear energy sources such as uranium or plutonium-from which harmful gamma rays-the carbon 14 design is used, which is a radioactive counterpart known as radioactive carbon.
It is emitted from radioactive carbon only beta molecules, which are less harmful and can contain safely with a thin sheet of aluminum. This makes BetavolTaic batteries, which convert beta radiation into electricity, is a promising candidate for integrated and safe energy solutions. RadioCarbon provides many advantages on other radioactive materials: it is inexpensive and easily available as a secondary product for nuclear power plants, and easy to recycle. More importantly, it is unusually slowly decomposing, with half of the age of 5,730 years.
This means that the radiological powered battery can provide energy in theory for thousands of years without the need to replace. He said in: “I decided to use a radiant carbon counterpart because it only generates beta rays.”
The team’s Betavoltaic’s model battery includes advanced materials to increase the efficiency of energy to the maximum – a decisive challenge in the nuclear battery design. At the heart of the battery there are semiconductors based on a commonly used titanium dioxide in solar cells.
This substance was treated with routinium -based dye and strengthened with citric acid to create a very sensitive structure capable of converting beta efficiently into electricity.
Beta -emitted bita particles hit the Ruthenium -based dye on semiconductors, which leads to a series of electron transport reactions known as “electron collapse”. The reactions generate this electricity, which is collected by the titanium dioxide and passes through an external circle. This process is essential to the battery capacity to produce useless power.
One of the main factors in in In in Inn was the radioactive carbon position in both the anode and the battery cathode – a departure from the previous designs that used radioactive carbon exclusively on one pole. This double configuration increased the generation of beta molecules while reducing energy loss caused by the distance between the electrodes.
The results were striking: The test revealed that this approach has strengthened the efficiency of battery power transfer from 0.48 percent in previous designs to 2.86 percent in the new initial model – an improvement of nearly six times.
Despite this progress, radioactive carbon batteries are still lagging behind Li-ion batteries in terms of energy production. Li-ion batteries usually achieve about 90 percent. However, what these nuclear batteries lack in immediate performance, they compensate for longevity and reliability. Their ability to work for decades without recharge opens new capabilities in various industries.
For example, the radioactive carbon carbon batteries can last the age of the entire patient, eliminating the need for risky surgical alternatives. Other possible applications include the operation of remote sensors in harsh environments, satellites that require long -term energy solutions in space, and even drones or self -driving vehicles where frequent recharge is impractical.
In recognition that more improvement is needed to enhance the performance of these nuclear batteries. Efforts to improve the form of beta rays and develop more efficient absorption to increase power generation. However, it is still optimistic about its potential effect. He said, “We can put safe nuclear energy in the applications of the size of the finger,” imagining a future in which the nuclear energy is no longer confined to large but integrated power plants.
The research was funded by the National National Research Corporation in Korea and with the support of the Daegu Gyeongbuk Research and Development Program for Science and Technology within the framework of the Ministry of Science and Communications in Korea.