Engineering
For millions of people who participate in activities such as snorkeling and scuba diving each year, hand signals are the only option for communicating safety and directional information underwater. While recreational divers ...
Aug 29, 2022
0
210
Energy & Green Tech
As the world builds out ever larger installations of wind and solar power systems, the need is growing fast for economical, large-scale backup systems to provide power when the sun is down and the air is calm. Today's lithium-ion ...
Aug 24, 2022
2
154
Robotics
A team of researchers at Johannes Kepler University, in Austria, has developed a series of tiny, steerable electromechanical robots that can walk, run, jump and swim at high speeds for their size. In their paper published ...
Engineering
Engineers at the University of California San Diego have developed lithium-ion batteries that perform well at freezing cold and scorching hot temperatures, while packing a lot of energy. The researchers accomplished this ...
Jul 4, 2022
2
71
Robotics
A team of researchers at Beihang University, working with colleagues at Imperial College London and Swiss Federal Laboratories for Materials Science and Technology, has developed a quadcopter drone that is capable of flying ...
Energy & Green Tech
It doesn't come on fast. It may take weeks to notice. You have the newly recharged lithium-ion AA batteries in the wireless kitty water fountain, and they last two days. They once lasted a week or more. Another round of charging, ...
Apr 28, 2022
0
192
Engineering
Lithium metal batteries could store much more charge in a given space than today's lithium-ion batteries, and the race is on to develop them for next-gen electric vehicles, electronics and other uses.
Jan 6, 2022
0
248
Energy & Green Tech
A small team of researchers from Lawrence Berkeley National Laboratory and the University of California has found that battery-powered trains could become economical as soon as 2023. In their paper published in the journal ...
Robotics
As a robotics engineer, Yasemin Ozkan-Aydin, assistant professor of electrical engineering at the University of Notre Dame, gets her inspiration from biological systems. The collective behaviors of ants, honeybees and birds ...
Oct 18, 2021
0
1322
Engineering
A team of materials scientists and chemists has determined the proper stack pressure that lithium metal batteries, or LMBs, need to be subjected to during battery operation in order to produce optimal performance.
Oct 18, 2021
0
348
In electronics, a battery or voltaic cell is a combination of many electrochemical Galvanic cells of identical type to store chemical energy and to deliver higher voltage or higher current than with single cells.
The battery cells create a voltage difference between the terminals of each cell and hence to its combination in battery. When an external electrical circuit is connected to the battery, then the battery drives electrons through the circuit and electrical work is done. Since the invention of the first Voltaic pile in 1800 by Alessandro Volta, the battery has become a common power source for many household and industrial applications, and is now a multi-billion dollar industry.
This text uses material from Wikipedia, licensed under CC BY-SA
