Radioisotope Battery Market Report 2026

The radioisotope battery market size has grown rapidly in recent years. It will grow from $0.47 billion in 2025 to $0.52 billion in 2026 at a compound annual growth rate (CAGR) of 10.6%. The growth in the historic period can be attributed to growing use of radioisotope thermoelectric generators in deep-space missions requiring long-duration power, increasing deployment of thermocouples and ceramic heat sources in remote scientific equipment, early adoption of beta-voltaic cells for low-power medical and industrial devices, expansion of encapsulation materials to enhance safety and containment of radioactive isotopes, rising government investment in nuclear power technologies supporting radioisotope battery development.

The radioisotope battery market size is expected to see strong growth in the next few years. It will grow to $0.76 billion in 2030 at a compound annual growth rate (CAGR) of 10%. The growth in the forecast period can be attributed to rising demand for long-life power systems in space exploration and lunar infrastructure, increasing adoption of advanced beta-voltaic cells with higher conversion efficiency, growing use of compact rtgs in autonomous sensors and remote monitoring applications, technological advancements in encapsulation and shielding materials improving battery safety, expanding commercialization of radioisotope batteries for extreme-environment industrial operations. Major trends in the forecast period include rising development of high-efficiency thermoelectric materials, increasing adoption of betavoltaic batteries for miniaturized devices, growing demand for long-duration energy sources for space missions, advancement in radiation shielding and encapsulation technologies, expansion of radioisotope-based power systems in remote industrial monitoring.

The growing number of space exploration missions is expected to drive the growth of the radioisotope battery market in the coming years. Space exploration missions are scientific or exploratory journeys conducted beyond Earth’s atmosphere to study celestial bodies, space environments, and the potential for life or human habitation. The increase in these missions is primarily fueled by advancements in aerospace technology, which have enhanced the reliability, cost-efficiency, and capabilities of launch vehicles, spacecraft, and satellite systems. Radioisotope batteries support space exploration missions by providing a long-lasting and reliable power source for spacecraft and instruments operating in environments where solar energy is insufficient or unavailable. For example, in May 2024, the National Space Operations Centre (NSpOC), a UK-based government agency, reported that the number of active satellites in orbit had surpassed 9,000 as of April 2024, with projections suggesting that by 2030, there could be more than 60,000 active satellites in space. Consequently, the growing demand for space exploration missions is driving the growth of the radioisotope battery market.

Leading players in the radioisotope battery market are increasingly focusing on developing micro-scale, long-duration energy sources to support compact equipment operating in remote or extreme settings. These micro-scale batteries are engineered to function reliably for several years or even decades without replacement or charging, making them highly suitable for medical devices, instruments used in space, and remote monitoring systems. A notable example is the January 2024 launch of the BV100 by Beijing Betavolt New Energy Technology Company Ltd., a new energy firm based in China. The BV100 is the first mass-produced nuclear battery to use the radioisotope nickel-63. This 3V nuclear battery integrates nickel-63 with a diamond semiconductor for energy conversion and is designed to offer continuous power for up to 50 years. It is specifically created for compact and mission-critical applications, such as medical implants, space instruments, and hard-to-reach sensors, where maintenance is difficult or impractical.

In February 2025, Nusano Inc., a U.S.-based advanced radioisotope production company, entered into a collaboration with Atomiq Inc. to jointly develop and scale technologies for nuclear diamond batteries. This strategic alliance seeks to merge Nusano’s capabilities in isotope production with Atomiq’s expertise in battery innovation to advance manufacturing infrastructure and deployment. Atomiq Inc., headquartered in the U.S., is engaged in creating high-efficiency radioisotope batteries that transform radioactive decay energy into stable, long-duration electrical output without requiring recharging.

Major companies operating in the radioisotope battery market are TDK Corporation, Teledyne Technologies Incorporated, General Atomics, Exide Technologies LLC, Energizer Holdings, NRG Pallas, COMSOL Inc., Nusano Inc., NDB Inc., American Elements Corp., Zeno Power Systems Inc., Oklo Inc., City Labs Inc., Direct Kinetic Solutions (DKS), Atomiq Inc., Widetronix Inc., Qynergy Corporation, Betavolt New Energy Technology Co. Ltd., Infinity Power, GE Vattenfall.

North America was the largest region in the radioisotope battery market in 2025. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in the radioisotope battery market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa.

Note that the outlook for this market is being affected by rapid changes in trade relations and tariffs globally. The report will be updated prior to delivery to reflect the latest status, including revised forecasts and quantified impact analysis. The report’s Recommendations and Conclusions sections will be updated to give strategies for entities dealing with the fast-moving international environment.

Tariffs on rare isotopes, thermoelectric materials, and specialized nuclear-grade components are raising production costs and affecting supply chain reliability in the radioisotope battery market, particularly impacting space exploration and defense sectors that rely heavily on imported isotopes. Regions such as North America and Europe encounter longer procurement cycles for thermoelectric modules and encapsulation materials. However, tariffs are encouraging domestic isotope production, local material processing, and increased investment in self-reliant nuclear battery manufacturing capabilities, strengthening national energy security.

The radioisotope battery market research report is one of a series of new reports that provides radioisotope battery market statistics, including the radioisotope battery industry global market size, regional shares, competitors with the radioisotope battery market share, detailed radioisotope battery market segments, market trends, and opportunities, and any further data you may need to thrive in the radioisotope battery industry. These radioisotope battery market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenarios of the industry.

Radioisotope batteries are devices that produce electrical energy by converting the heat generated from the radioactive decay of isotopes. These batteries are primarily utilized in long-duration, low-maintenance applications, including space missions, remote sensing technologies, and medical implants.

Key types of radioisotope batteries include plutonium-238, strontium-90, cobalt-60, and promethium-147 batteries. Plutonium-238 batteries, which utilize thermoelectric generators to transform decay heat into electricity, are particularly suitable for space exploration due to their long operational life. These batteries are offered in multiple configurations, such as thin-film, solid-state, microbatteries, and packaged battery formats. They find use in various sectors such as space exploration, medical equipment, defense, consumer gadgets, and industrial systems, serving end-users in aerospace, healthcare, defense, telecommunications, and industrial sectors.

The countries covered in the radioisotope battery market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

The radioisotope battery market consists of sales of thermocouples, beta-voltaic cells, encapsulation materials, ceramic heat sources, and radioisotope thermoelectric generators (RTGs). Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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