'no fire risk' with new lithium batteries - lithium ion polymer battery
Lithium-
Scientists have developed ion batteries that can resist explosions or fires.
These devices generate enough energy for household electronics, but do not ignite --
That is, use nails to puncture repeatedly.
The battery uses water.
The salt solution as its electrolyte eliminates some non-
Business model of water.
The study was published in the journal joules.
"In the past, if you want high energy, you will choose non-Lithium water-
But you have to compromise on security.
Co-said: "If you prefer safety, you can use water batteries like nickel/metal hydroxide, but you have to be content with lower energy
Kang Xu, author of the US Army Research Laboratory (ARL).
"Now, we show that you can get high energy and high security at the same time.
"A recent paper was published in Issue 2015 of the Journal of Science, in which the same team published three similar papers.
0 V battery with water electrolyte.
At that time, however, what researchers were called the "cathode challenge" prevented reaching a higher voltage.
When one end of the battery (the anode)-
Made of graphite or lithium metal
Degraded by water.
Based on electrolyte.
The gel polymer breaks down when the battery is first charged to form a stable layer called the "interface.
This interface protects the anode from the effects of the chemical reaction, which prevents the anode from working properly and allows the most ideal anode material to be used in the battery.
By coating the anode with a protective gel polymer, scientists are able to increase the battery voltage to 4.
0, so that it is useful for household electronic devices such as laptops.
The addition of gel coating also enhances the safety advantage of new batteries compared to standard non-batteriesLithium water-ion batteries.
It also improves the energy density compared to other proposed lithium waterion batteries.
Dr. Xu said that interface chemistry needs to be improved before it can be commercialized.
But with enough money,
Volt chemical is likely to be ready for commercial business in about five years, he said.