The answer is mainly included above because These are silicon anodes, Thanks to them, batteries manufactured using them have an increased energy density and a much faster charging rate than before. Both aspects are crucial for the further development of the energy and automotive industries – especially in relation to renewables and the electric vehicle sector.
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The innovative anodes are made of 100% silicon and have been tested against results achieved by graphite structures. In this comparison, the silicon variant has an advantage of about 30 percent when it comes to power density. It was also possible to quickly charge it to 80 percent within 15 minutes.
Silicon has an advantage over graphite due to its capacity of 3600 mAh/g (in the case of the second component, the result is 372 mAh/g). Thanks to recent developments, GDI representatives were able to announce the achievement of capacities exceeding 3200 mAh/g. Although currently available lithium-ion batteries, despite their enormous popularity, suffer from problems with fast charging, high energy density, and satisfactory safety, this is about to change.
Lithium-ion batteries equipped with 100% silicon anodes feature higher energy density, safety and broad fast-charging capabilities.
This is due to recent progress. The key to success, according to the researchers, was combining a direct silicon structure with copper alloy chips. As part of further efforts, the new anode will be demonstrated to allow electric vehicles with a range of more than 800 kilometers to be quickly charged within 15 minutes. The safety level of these batteries is also expected to increase.
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In cooperation with the Japanese company AGC, the Americans have drawn up a business plan for gigawatt production by 2028. Two years later, the new technology will be applied in tens of thousands of vehicles. As if the potential benefits were not enough, it must also be taken into account that the method of producing these anodes reduces greenhouse gas emissions by 80%. This progress is of course related to the comparison with graphite elements. In addition, cells connected to the anodes are supposed to be highly resistant to thermal instability.
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