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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Lost a good friend; void cannot be filled: Fadnavis mourns Ajit Pawar’s passing
Mumbai (PTI): Maharashtra Chief Minister Devendra Fadnavis on Wednesday described Deputy CM Ajit Pawar’s tragic death in a plane crash as unbelievable, and said he had lost a good friend.
Fadnavis said “today” (January 28) will be a government holiday and there will be a three-day state mourning as a mark of respect to Pawar.
Ajit Pawar’s death has left a void that will never be filled, he said. “After working closely together, it is unbelievable that he is no more,” Fadnavis said.
Talking to reporters, Fadnavis described Pawar as a people’s leader who knew the state well and had a deep understanding of the issues in Maharashtra. He said it takes several years to build and establish such leadership.
Fadnavis said he had apprised Prime Minister Narendra Modi and Union Home Minister Amit Shah about the tragedy. The CM said he had also spoken with Ajit Pawar’s cousin Supriya Sule and his son Parth Pawar.
“Both (Deputy CM) Eknath Shinde and I are leaving for Baramati now. Once their entire family gathers in Baramati, we will share further details,” he said.
The entire state stands by Pawar’s family and his party NCP in this hour of grief, he added.
Ajit Pawar, 66, and four other persons were killed after an aircraft carrying them crashed in Maharashtra’s Pune district on Wednesday morning, officials said. The incident occurred when the plane carrying Pawar and others landed near Baramati, they said.
Several state BJP leaders, including Ashish Shelar, Ravindra Chavan and Chandrashekhar Bawankule, expressed deep grief over Pawar’s passing.
“This heart-wrenching incident has left the mind numb. Maharashtra has lost an experienced, dutiful and resolute leader,” state minister Shelar said.
Pawar left a distinct imprint on the state’s politics through his strong grip over administration, decisiveness and relentless drive for Maharashtra’s all-round progress. “Firmness, discipline, punctuality and tireless dedication were defining aspects of his personality,” he said.
BJP state president Ravindra Chavan said Maharashtra’s politics was unimaginable without Pawar. He said Pawar was known as a dynamic leader with a powerful command over administration and an unwavering focus on the state’s comprehensive development.
He said Pawar held the record for serving the longest tenure as deputy CM in the state’s history and left an indelible mark while handling key portfolios such as irrigation, energy and finance. “With his passing, Maharashtra has lost a firm, disciplined, punctual and indefatigable leader. This void can never be filled,” Chavan said.
Revenue Minister Chandrashekhar Bawankule described Pawar as a senior friend and guide. “Even now, it is difficult to accept that this tragedy has really happened,” he said. Pawar would be remembered as a true people’s leader who gave clear direction and unstoppable momentum to Maharashtra’s all-round development, Bawankule said.
Recalling Pawar’s immense administrative experience, Bawankule said he had personally sought the NCP leader’s advice on several occasions.
“The loss of Ajitdada is not merely the departure of one leader; it is a profound loss for Maharashtra itself. The nation has lost a visionary statesman, and I have lost a dear elder friend and guide,” Bawankule said, adding that the reality of Pawar no longer being among them felt impossible to accept.
VIDEO | Maharashtra CM Devendra Fadnavis expresses grief over the demise of Deputy CM Ajit Pawar in an aircraft crash. He says, “This morning, a very tragic incident occurred. In extremely unforeseen circumstances, the news of the unfortunate demise of our state’s deputy chief… pic.twitter.com/sKIKJ5FvRW
— Press Trust of India (@PTI_News) January 28, 2026
