'mission impossible' battery that self-destructs in water could stop spy devices from falling into enemy hands - lithium ion polymer battery

Many people will see serious "user errors" when they spill drinks on their laptops or smartphones ".
However, we may be extra careful if the spilled liquid means that the loss is more than just the hard drive.
Researchers in the United States exploring "transition" electronics say a task has been set --
Lithium ion batteries that cannot be dissolved in water.
According to researchers at Iowa State University, the battery can power a laptop for 15 minutes, but completely dissolve in water within 30 minutes.
The batteries that melt in the water seem to be a bit of a disadvantage, but experts believe that from the dissolved medical implants they can find a variety of uses, before falling into the enemy's hands, environmental sensors and even spy devices can be destroyed. The 2.
A team at the University of Iowa is developing a 5 volt soluble battery, which researchers claim is the first actual demonstration of the technology.
Impossible task to complete
The team described the style battery as a step towards a fully transient device.
DrReza Montazami, an Iowa mechanical engineer who led the study, said: "any device without a transient power supply is not transient.
"It's a battery with all the working parts.
It is much more complicated than our previous work on transient electrons.
Very small proof of battery concept
Only 5x6mm and 1mm thick
Consists of eight layers, including the anode and cathode, and a layer of vinyl alcohol-based polymer.
When the battery is exposed to water, the housing is sold and broken as the electrode dissolves.
The size is a key factor, and the researchers explained that electronics that require more power can be provided by a range of smaller batteries --
It takes longer to dissolve and dissipate due to a single large battery.
However, despite the breakthrough, the technology has not disappeared.
The nanoparticles in the battery capsules do not dissolve in the water, and although they do disperse, they can also be traced.
The researchers explained in part B of the Journal of Polymer Science: "The proposed concept proves that there is a critical potential in military and hardware security applications.
Another team at Arizona State University built another power supply using ready-made ingredients
Super Capacitor
Use cheese, eggs, charcoal, gold foil and energy drinks.
Hand-made equipment can be connected in sequence to provide sufficient charge to power the small LED lights.
Asus researchers say the capacitor can kill harmful bacteria and can be used in a range of edible biomedical devices.