new foldable battery takes cue from chinese calligraphy - lithium ion battery for solar street light
Chinese scientists have developed a flexible, roll-able, FOLDABLE battery inspired by traditional Chinese calligraphy, which includes ink on paper.
Global demand for flexible electronics is growing rapidly as the technology can bend, roll and fold things like video screens and solar panels.
These flexible electronics require the same flexible batteries to power them, but conventional batteries are too rigid and bulky to be used for flexible electronics.
However, Chinese scientists have developed a flexible lithium-
Battery based on Chinese brush. [
Crazy technology that is completely changing biotechnology]Lithium-
From smartphones to tablets to laptops, ion batteries power most portable devices. However, so-called lithium-
In principle, the energy of the air battery is 5 to 10 times that of lithium
Ion batteries of the same weight.
That means lithium.
In theory, air batteries can provide electric vehicles with the same mileage as gasoline.
The battery usually contains two electrodes.
Anode and cathode. In a lithium-
Air batteries, the anode is usually made of lithium metal, while the cathode is usually a porous carbon material that allows ambient air to enter the battery.
When lithium reacts with oxygen in the air, it discharges.
Charging the device will reverse this process.
The main component of black painting ink, scientists point out, is carbon, and paper is porous, thin, flexible, lightweight and cheap.
They infer that the ink drawn on paper can be used as a cathode for lithium
Very simple air battery.
"Due to super
High theoretical energy density of lithium
Oxygen batteries, they may be one of the most suitable candidates for the future development of flexible electronics, "Research senior author Zhang Xinbo, a material scientist at the Institute of Applied Chemistry in Changchun, China, told Live Science.
The researchers built a battery from a three-tier sandwich. an ink-
Paper cathode, a piece of lithium foil as an anode, and a sheet made of fiberglass between the anode and the cathode that allows charged ions to flow between the cathode and the anode.
Zhang and his colleagues found that their battery prototype had energy.
Storage capacity comparable to commercial lithium-
Ion batteries, even after bending back and forth for 1,000 cycles.
They can also easily fold these sheets into a battery pack.
In the future, he and his colleagues will develop lightweight flexible coatings for these batteries to protect them from corrosion, Zhang said.
Zhang and his colleagues detailed their findings in the December.
Issue 22 of advanced materials magazine.
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