Chinese Startup develops nuclear battery for smartphones that will last 50 years without charging
Betavolt, a Chinese startup, claims a groundbreaking achievement with the development of a nuclear battery that can power smartphones for an impressive 50 years without requiring charging. This nuclear battery, deemed the world's first miniaturized atomic energy system, utilizes 63 nuclear isotopes packed into a module smaller than a coin.
The technology involves converting energy released by decaying isotopes into electricity, a concept first explored in the 20th century and now realized by Betavolt. The startup has initiated pilot testing and plans to mass-produce the battery for various applications, including smartphones and drones.
In their press release, Betavolt stated, "Betavolt atomic energy batteries can meet the needs of long-lasting power supply in multiple scenarios, such as aerospace, AI equipment, medical equipment, microprocessors, advanced sensors, small drones, and micro-robots." They believe this innovation will provide China with a competitive advantage in the AI technology era.
The initial nuclear battery by Betavolt delivers 100 microwatts of power with a voltage of 3V, measuring a tiny 15x15x5 cubic millimeters. The company aims to produce a battery with 1 watt of power by 2025. The small size allows for multiple units to be connected, increasing power output, envisioning a future where mobile phones never need charging, and drones can fly indefinitely.
Ensuring safety, Betavolt's design features a layered structure to prevent fire or explosions when subjected to sudden force. The battery can operate in a wide temperature range, from -60 degrees Celsius to 120 degrees Celsius.
To create the battery, Betavolt used nickel-63, a radioactive element, as the energy source, employing diamond semiconductors for energy conversion. The team developed a thin single-crystal diamond semiconductor and placed a nickel-63 sheet between two diamond semiconductor converters. The radioactive source's decay energy is then converted into electrical current.
Addressing radiation concerns, Betavolt assures users of safety, stating no external radiation. It is deemed suitable for use in medical devices inside the human body, such as pacemakers and cochlear implants. After the decay period, the isotopes transform into a stable, non-radioactive isotope of copper, posing no environmental threat.
The BV100 battery by Betavolt is also considered more secure than conventional batteries, not catching fire or exploding when punctured or exposed to high temperatures.
The development of miniaturized nuclear batteries has been a longstanding goal, and Betavolt's breakthrough technology has the potential to revolutionize electronics by eliminating the need for chargers or portable power banks.
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MK Stalin urges PM Modi to intervene after Saudi cancels 52,000 private Hajj seats
New Delhi: Tamil Nadu Chief Minister M K Stalin has written to Prime Minister Narendra Modi, urging him to intervene after Saudi Arabia abruptly cancelled approximately 52,000 Hajj seats allocated to private tour operators. The move has triggered widespread anxiety among Indian Muslim pilgrims preparing for the upcoming pilgrimage.
In his letter, Stalin expressed deep concern over the “sudden reduction” in India’s Hajj quota for private operators, describing the development as a matter of urgent concern. He emphasized that many pilgrims, including those from Tamil Nadu, had already made full payments and were left in distress due to the uncertainty caused by the cancellation.
"I request that the matter may be taken up with the authorities in the Kingdom of Saudi Arabia urgently and seek an expeditious remedy,” Stalin wrote, expressing hope that PM Modi’s intervention would help restore the cancelled quota and provide reassurance to affected families.
India had signed a bilateral agreement with Saudi Arabia in January 2025, finalising a quota of 1,75,025 pilgrims for Hajj 2025. This was split in a 70:30 ratio between State Hajj Committees and private operators—allocating 1,22,517 seats to the former and 52,507 to the latter.
However, Saudi Arabia has now reduced the private Hajj quota by nearly 80 per cent, affecting close to 52,000 Indian pilgrims. The decision reportedly stems from revised policies and stricter timelines for private tour operators, which several failed to meet despite repeated reminders.
In a partial relief, the Saudi government has agreed to India's request to reopen the Hajj Portal for Combined Hajj Group Operators (CHGOs), allowing an additional 10,000 pilgrims to register under the private category.
