-(2)Swedish scientists have developed a

(2)Swedish scientists have developed a "massless" structure battery that improves performance by 10 times
author:enerbyte source:本站 click196 Release date: 2023-10-18 08:44:40
abstract:
It is understood that the battery consists of a negative electrode made of carbon fiber and a positive electrode made of aluminum foil coated with lithium phosphate. They are separated by glass fiber fabric, which serves as a structural electrolyte matrix. It can transport lithium ions between...

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It is understood that the battery consists of a negative electrode made of carbon fiber and a positive electrode made of aluminum foil coated with lithium phosphate. They are separated by glass fiber fabric, which serves as a structural electrolyte matrix. It can transport lithium ions between electrodes like traditional batteries and help distribute mechanical loads to different parts of the structure.

Although this' massless' energy storage device is indeed different from traditional batteries and does not add any additional weight to the vehicle (at least in theory), researchers suggest that this also involves some compromises. For example, the energy density of this type of battery is 24Wh/kg, which the team pointed out is approximately 20% of the current capacity of lithium batteries.

However, on the other hand, if this type of battery is integrated into an electric vehicle to replace a typical lithium battery, the weight of the vehicle will be much lighter, so the energy required to drive it on the ground will be less. As for its mechanical properties, the research team stated that the stiffness of this material is 25GPa, which can compete with other commonly used building materials.

The project leader LeifAsp said, "Previous attempts to manufacture structural batteries either resulted in good mechanical or electrical performance. However, here, we have successfully designed a competitive energy storage and rigid structural battery using carbon fiber

The researchers stated that this new design has improved the performance of the structural battery by ten times compared to the previous one, but they quickly shifted their attention to higher goals. The next stage of their research is to replace aluminum in the positive electrode with carbon fiber to further improve energy and mechanical properties, while glass fiber fabric will be replaced with a thinner version to promote faster charging.

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