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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SC stays CBI probe into West Bengal govt officials' role in teacher recruitment scam
New Delhi, Apr 29: The Supreme Court on Monday stayed a Calcutta High Court order directing the CBI to probe the role of West Bengal government officials in a teacher recruitment scam. It, however, refused to stay for now the cancellation of the appointment of over 25,000 teachers and non-teaching staff.
The top court was hearing a plea by the West Bengal government against a high court order invalidating the appointment of 25,753 teachers and non-teaching staff made by the School Service Commission (SSC) in state-run and state-aided schools.
A bench of Chief Justice DY Chandrachud, Justice JB Pardiwala and Justice Manoj Misra, however, refused to stay the high court order cancelling the appointments and said it will hear the matter on May 6.
Observing that taking away the jobs of about 25,000 persons is a serious matter, the top court asked if it is possible to segregate the valid and invalid appointments on the basis of the material available and who the beneficiaries of the fraud are.
"We will stay the direction which says the CBI (Central Bureau of Investigation) will undertake further investigation against officials in the state government," the bench said.
Calcutta High Court had said the CBI would undertake further investigations with regard to the persons in the state government involved in approving the creation of supernumerary posts to accommodate illegal appointments.
If necessary, the CBI will undertake custodial interrogation of such persons involved, it had said.
Challenging the order, the state government, in its appeal filed before the top court, said the high court cancelled the appointments "arbitrarily".
"The high court failed to appreciate the ramification of cancelling the entire selection process, leading to straightaway termination of teaching and non-teaching staff from service with immediate effect, without giving sufficient time to the petitioner state to deal with such an exigency, rendering the education system at a standstill," the plea said.
Calcutta High Court last week declared the selection process as "null and void" and directed the CBI to probe the appointment process. It also asked the central agency to submit a report within three months.
"All appointments granted in the selection processes involved being violative of articles 14 and 16 of the Constitution of India, are declared null and void and cancelled," the high court said in its April 22 order.
The high court said those appointed outside the officially available 24,640 vacancies, appointed after the expiry of the official date of recruitment, and those who submitted blank Optical Mark Recognition (OMR) sheets but obtained appointment to return all remunerations and benefits received by them with 12 per cent interest per annum within four weeks.
Observing that it had given "anxious consideration to the passionate plea" that persons who obtained the appointments legally would be prejudiced if the entire selection process was cancelled, the bench said it hardly had any choice left.
The high court held that all appointments involved were violative of articles 14 (equality before law) and 16 (prohibiting discrimination in employment in any government office) of the Constitution.
"It is shocking that, at the level of the cabinet of the state government, a decision is taken to protect employment obtained fraudulently in a selection process conducted by SSC for state-funded schools, knowing fully well that, such appointments were obtained beyond the panel and after expiry of the panel, at the bare minimum," the high court had said.
It said unless "there is a deep connection between the persons perpetuating the fraud and the beneficiaries" with persons involved in the decision-making process, such action to create supernumerary posts to protect illegal appointments is "inconceivable".
The division bench had also rejected a prayer by some appellants, including the SSC, for a stay on the order and asked the commission to initiate a fresh appointment process within a fortnight from the date of the results of the ongoing Lok Sabha elections.
The bench, constituted by the high court chief justice on a direction of the Supreme Court, had heard 350 petitions and appeals relating to the selection of candidates for appointment by the SSC in the categories of teachers of classes 9, 10, 11 and 12 and group-C and D staffers through the SLST-2016.
In its 282-page judgment, the high court had said retaining appointees selected through "such a dubious process" would be contrary to public interest.
