wood is key ingredient in cheap rechargeable battery - lithium ion rechargeable battery
The scream from the Paul macsa battery made of wood is not high
Technological innovation-more like something in a campfire.
But a device that uses wood fiber can be key to cheap renewable energy. Lithium-
The price based on rechargeable batteries is too high to be used on a large scale because there is very little lithium available.
But sodium is rich and cheap, so why not put the battery on the sodium electrolyte?
The problem is that sodium ions are many times larger than lithium ions, and when diffuse during charging and discharging, sodium ions gradually damage the anode of the battery.
Another problem is that the use of tin anode in this battery will provide the highest power storage capacity, but this leads to the formation of sodium
Tin alloys that inflate the battery accelerate the so-called "structural crushing ".
The result is a sodium.
The tin anode ion battery can only be charged and discharged about 20 times.
To address this, Zhu Hongli and colleagues at the University of Maryland College Park turned to a natural material that they knew could be easier to carry large ions and colon;
Soft, porous wood fiber.
These fibers include hollow slender cells known as tubular cells whose walls are made of a tough material called Wood and transport water and mineral salts around the organism.
By storing 50-nanometre-
2500-thick tin layer onnanometre-
The researchers were able to create an anode that could charge and discharge 400 times.
The team said that the relatively soft nature of the wood fiber effectively releases mechanical stresses that will crush the common tin anode, resulting in an "unprecedented performance of tin --anode sodium-ion battery”.
Because wood fiber is easy to process, it should be available when making low fibercost batteries.
The team now wants to design larger batteries for renewable storage applications.
Chen Bingan, a researcher at the University of Cambridge who specializes in new battery materials, was impressed.
"Using wood fiber as a base to reduce the cost of sodium --
"Ion batteries are a great idea of innovation," he said . "
"But the challenge will be how to scale up the manufacturing process and make it commercially viable.
"Journal reference and colon;
Nano Express, classification number and colon cancer. 10.