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Algae electric battery

14.05.2022

Researchers from the University of Cambridge (UK) have created a reliable and renewable biological photovoltaic cell based on cyanobacteria. With it, they were able to continuously charge the microprocessor for a year. For this, only light and water were needed.

The system - about the size of an AA battery - is made from common, inexpensive, and largely recyclable materials. It includes the algae Synechocystis, which naturally harvest solar energy through photosynthesis. The weak electrical current that is generated in the process then interacts with the aluminum electrode and is used to power the microprocessor.

The new photovoltaic device does not discharge in the same way as, for example, a lithium-ion battery, because it constantly uses light as a source of energy. And, despite the fact that photosynthesis requires light, the device can continue to generate energy even in the dark. Another advantage is that it can be easily reproduced hundreds of thousands of times to power a large number of small devices.

In the experiment, scientists used an element to power Arm Cortex M0+, a microprocessor widely used in IoT devices. The Internet of Things is a vast and growing network of electronic devices, each of which consumes a small amount of energy. These devices collect and exchange real-time data over the Internet. Using low-cost computer chips and wireless networks, many billions of portable gadgets are part of this network, from smartwatches to temperature sensors in power plants.

Powering trillions of IoT devices with lithium-ion batteries would be impractical: it would require three times the amount of lithium produced annually in the world. And traditional photovoltaic cells are made from hazardous materials that have an adverse impact on the environment.

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Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Random news from the Archive

Radio dishes in canteens 06.03.2007

One of the German manufacturers of porcelain tableware has launched the production of plates and cups with an integrated microcircuit, which in self-service canteens, when a customer approaches the cash register, radios the names and prices of the selected dishes and drinks to the cash register.

Microcircuits are programmed when laying out dishes on plates. A plate or cup, outwardly no different from the usual, can withstand at least one hundred thousand cycles of use with washing in the dishwasher. The temperature of drinks or dishes can reach up to 85 degrees Celsius, but you can not put such dishes in a microwave oven - the microcircuits will burn out.

Daimler-Chrysler installed the new system in its canteen, and the lines at the distribution disappeared.

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