Researchers are developing a lithium-silicon battery that will deliver eventually five times the normal battery life. According to report, Carbon nanotubes have been one of the main reasons for the incredible advancements in power efficiency. Generally Li-ion batteries use graphite anodes to store charge. Only a sixth of the carbon atoms are able to bond with li ions which result in inefficient energy storage.
If Silicon is used instead, four lithium ions can bind with every silicon atom, boosting the energy density to ten times. However , the only flip side to this technology is that when silicon atoms take in the lithium ions, they swell upto four times in size.When the ions are discharged, silicon shrinks back to its original size. During this process, the entire battery will have to expand and contract. this can lead to a decrease in battery life or make it completely useless.
To deal with this issue, researchers are developing a design that uses a silicon battery anode of double-walled silicon nanotubes,which is coated with silicon oxide....
If Silicon is used instead, four lithium ions can bind with every silicon atom, boosting the energy density to ten times. However , the only flip side to this technology is that when silicon atoms take in the lithium ions, they swell upto four times in size.When the ions are discharged, silicon shrinks back to its original size. During this process, the entire battery will have to expand and contract. this can lead to a decrease in battery life or make it completely useless.
To deal with this issue, researchers are developing a design that uses a silicon battery anode of double-walled silicon nanotubes,which is coated with silicon oxide....
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