Biomimetic file 151: Energy Storage

Mushroom inspired batteries can significantly increase their lifetime

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Image source: ALAMY

Highlight: “Existing lithium-ion batteries use graphite for the anode, which requires a high standard of purification, accounting for a significant portion of the cost. Graphite anodes also degrade relatively quickly, interfering with long-term storage capacity. The ideal replacement would contain plenty of salt to act as an electrolyte, be porous enough to leave plenty of space to hold lithium and could be grown naturally…A team at the University of Riverside have met success with the skins of Agaricus bisporus…the humble mushroom has been roped into service in one of the great technological quests of our time, to extend the lifespan of batteries…”

Insight: On one hand species can provide solutions to gain inspiration in order to improve current systems. On the other, there are now several case studies that demonstrate that it is possible to directly combine living systems with engineered processes. The concept implies more reliance on ecosystem services in order to achieve better outcomes.

A simple successful example already well established is water purification processes relying heavily on bacterial activity combined with mechanical elements.  A not so successful example is an artificial kidney used in dialysis treatment which is very expensive and far from being as efficient as a natural kidney organ.

This business model provides new challenges such as maintaining the durability and stability of the living part of such systems but also new opportunities to achieve things that are simply not possible or unsustainable given our current technologies. The simple point here is why always rely on technology when complex tasks could be carried out more effectively and at a cheaper cost through available ecosystem services already optimized for specific tasks?

More information: here

What is Biomimetics: the field of gaining inspiration from nature first to solve some of our most difficult challenges. Instead of coming up with our own solutions to a problematic, the odds are that species on the planet already offer an ultimate solution. This simple fact is also another strong case to preserve species at all cost as the intellectual heritage contained within or through the study of species is both irreplaceable and invaluable…

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www.biodiversity.sg

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