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A phone with a regular battery charges four times faster

24.08.2014

California-based startup Qnovo has developed a technology that can cut the charging time of a smartphone by 4 times. Charging a modern mobile phone for 15 minutes provides approximately 1,5 hours of battery talk time, while Qnovo technology can increase this time to 6 hours, according to Technology Review.

As a rule, in order to increase the capacity of the battery or reduce the charging time, manufacturers use new materials in its construction. Qnovo technology does not require this. The essence of the technology is to monitor the operating parameters of the battery during charging and regulate the charging rate by changing the voltage applied to the battery contacts.

The company does not disclose more specific details, but they assure that the technology solves two problems at once: slow battery charging and its degradation over time. "The conventional method is that the faster you charge the battery, the shorter its life becomes," says Qnovo, claiming that their technology does not have this shortcoming.

The startup has 5 patents for its development and is currently negotiating with several smartphone manufacturers about its use in new models of mobile devices. Qnovo CEO Nadim Maluf expects the first smartphones to be available in 2015. The technology works with any lithium-ion battery, he added.

According to Maloof, for the Qnovo technology to work, it is necessary to place program code in the operating system of a mobile device and equip the device with a Qnovo chip. The chip is small in size - it occupies only 9 mm2. Therefore, the company believes that no vendor will have problems with its integration.

The chip is located in the electrical circuit between the AC adapter and the battery. It allows you to check the battery parameters and adapt the voltage 1 thousand times per second. In addition, the chip allows you to bypass the blocking of battery charging parameters, which is installed by Qualcomm chipsets - quite common in mobile electronics.

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Superconductor without limits 10.03.2023

Scientists have developed a material that exhibits superconducting properties at normal temperature and relatively low pressure.

Engineers from the University of Rochester have unveiled a new material, nitrogen-doped lutetium hydride. It exhibits superconducting properties at a temperature of 20,5 °C and a pressure of 10 kbar. The development opens up a wide range of practical applications for such materials, from loss reduction in power plants to maglev and efficient electronics.

In most cases, superconductivity, a property in which a material has zero resistance, requires temperatures close to absolute zero and extremely high pressures to occur. Researchers have already used hydrides, created by combining rare earth metals with hydrogen, as high-temperature superconductors. But they also require a pressure of several Mbar to work, which makes the practical application of materials difficult.

Rare earth hydrides form framework structures in which rare earth metal ions act as carrier donors, providing sufficient electrons to enhance the dissociation of hydrogen molecules. Nitrogen and carbon help stabilize materials, the scientists explain. In their study, they used Lutetium as the basis.

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Although this pressure is significantly greater than atmospheric pressure, technologies used, for example, in the manufacture of microcircuits, use higher pressure. This opens up opportunities for the practical application of superconductors in various fields.

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