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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Siddaramaiah seeks Centre's urgent intervention over commercial LPG cylinder shortage
Bengaluru (PTI): Karnataka Chief Minister Siddaramaiah on Tuesday sought the Centre's urgent intervention to ensure supply of adequate commercial LPG cyclinders to hotels and restaurants in Bengaluru.
He said hotels, restaurants and catering establishments in the city would be forced to suspend operations if supplies are not restored, affecting a large number of students and working professionals who depend on them for regular meals.
In his letter to Union Minister of Petroleum and Natural Gas Hardeep Singh Puri, he also requested him to issue appropriate directions to the oil marketing companies to address the current supply constraints that would help ease the situation.
Referring to the March 9 order issued by the Ministry of Petroleum and Natural Gas prioritising LPG supply for domestic consumers, Siddaramaiah said while the intention behind the order to ensure uninterrupted LPG supply to households across the country is well understood and appreciated, its implementation appears to have led to an unintended shortage of commercial LPG in Bengaluru.
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He cited that several hotels and restaurant associations in the city have reported that they are unable to procure commercial LPG cylinders, and many establishments are expressing concern that they may have to temporarily shut operations if supplies are not restored soon.
Bengaluru has a large ecosystem of small restaurants, mess facilities, and catering units that serve lakhs of people every day.
According to him, as per the discussions held with the oil marketing companies, the state's commercial LPG demand has traditionally been supported by supplies from the three OMCs-IOCL (around 500-550 MT per day), HPCL (around 300 MT per day) and BPCL (around 230 MT per day) and the sudden disruption of this supply is now severely affecting hotels, catering establishments and other commercial users in Bengaluru.
Any disruption to their functioning will have a direct impact on daily life in the city, he said.
"This issue also affects a large number of students and working professionals who live away from their homes and depend on hotels and mess facilities for regular meals. In addition, Choultries (wedding halls), hostels, and event venues that rely on commercial LPG for food preparation are also facing uncertainty, particularly with scheduled social and community events," the chief minister said in the letter.
Given the scale of dependence on commercial LPG in a metropolitan city like Bengaluru, Siddaramaiah sought the union minister's intervention to ensure that adequate commercial LPG supply is made available to hotels, restaurants, choultries, community halls and any other pure commercial establishments.
"Appropriate directions to the oil marketing companies to address the current supply constraints would help ease the situation. A timely resolution will help ensure that businesses continue to operate smoothly while also avoiding inconvenience to thousands of people who rely on these services on a daily basis," he added.
