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Waste Glass Can Also Be Used As battery Matterial | Inexpensive Primary Cylindrical Lithium Manganese Dioxide Cell

From:CTECHI GROUP Limited     Release time:2018-12-06

Overview:At present, the main weakness of smart phones is the lack of battery life. Using silicon anode materials can help improve battery performance, and a team at UC Riverside has now demonstrated that using used glass bottles as a source of materials can be more environmentally friendly.

At present, the main weakness of smart phones is the lack of battery life. Using silicon anode materials can help improve battery performance, and a team at UC Riverside has now demonstrated that using used glass bottles as a source of materials can be more environmentally friendly.


From smartphones to electric vehicles, lithium-ion batteries are currently providing energy for countless products. Usually, they use lithium as cathode and graphite as anode. But as the material touches the ceiling, researchers are prompted to look for silicon, an old friend, as an alternative to the anode.


Compared with graphite, its energy storage potential can reach 10 times, but it is not very durable. Under the daily use of thermal expansion and contraction, the material will break down and wear faster. Previous work has found that the initial smashing of silicon materials can help overcome this problem.


After solving the problem of durability, the UCR research team has now found a new source of silicon materials for making batteries - discarded glass bottles. Previously, researchers had used a lot of strange anode materials, such as sand and mushrooms.

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Researchers rescued glass bottles from landfills.


Firstly, glass bottles are crushed into good white powder, and then silica is further refined to nanometer level with the help of hot magnesium. Ultimately, these nanoparticles are coated with carbon, which not only stabilizes their properties, but also improves their energy storage.


In 400 + cycle tests of button batteries made of this kind of anode material, the storage energy of button batteries is about 1420 mAh/g, which is much higher than that of conventional graphite anode batteries (about 350 mAh/g).


Changling Li, the lead author of the study, said: "We started with landfills looking for this waste and built it into commercial button batteries with higher energy storage, faster charging speed and more stable performance. Its prospects for the next decade are very bright."


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