Cambridge Scientists Develop Quintuple-Power Battery Inspired By Gut Bacteria
A UK-Chinese team of scientists have delivered a prototype for a better battery, which could extend the time between smartphone charges – and it's all inspired by our guts.
A UK-Chinese team of scientists has delivered a prototype for a better battery, which could extend the time between smartphone charges. What’s perhaps more interesting is this latest innovation was inspired by our guts.
This new lithium-sulfur battery mimics the villi found in the gut, which line the small intestines to absorb nutrients. What’s more, the villi do so by increasing the surface area over which this process of energy absorption can take place—this process is what caught researchers’ attentions. The increase in surface area would allow for improved power density—as much as five times that of the lithium-ion batteries in smartphones, today, researchers estimate.
"By taking our inspiration from the natural world, we were able to come up with a solution that we hope will accelerate the development of next-generation batteries," said lead author Teng Zhao, a PhD student from Cambridge. "This is the first time a chemically functional layer with a well-organized nano-architecture has been proposed to trap and reuse the dissolved active materials during battery charging and discharging.”
Lithium-sulfur batteries sure look like the successor to the lithium-ion battery. The higher energy density and reduced cost from the use of sulfur are two of the leading reasons, but as with any chemical reaction, this one comes with some side-effects. Many researchers and companies, like Sony, have been working to develop one durable and safe enough for commercial release.
The day of the lithium-sulfur battery is still years away, but on the horizon – Sony believes it can have one ready by 2020.
The Russian-built FEDOR was launched on a mission to help ISS astronauts.
Most people think human extinction would be bad. These people aren't philosophers.
- A new opinion piece in The New York Times argues that humanity is so horrible to other forms of life that our extinction wouldn't be all that bad, morally speaking.
- The author, Dr. Todd May, is a philosopher who is known for advising the writers of The Good Place.
- The idea of human extinction is a big one, with lots of disagreement on its moral value.
Picking up where we left off a year ago, a conversation about the homeostatic imperative as it plays out in everything from bacteria to pharmaceutical companies—and how the marvelous apparatus of the human mind also gets us into all kinds of trouble.
- "Prior to nervous systems: no mind, no consciousness, no intention in the full sense of the term. After nervous systems, gradually we ascend to this possibility of having to this possibility of having minds, having consciousness, and having reasoning that allows us to arrive at some of these very interesting decisions."
- "We are fragile culturally and socially…but life is fragile to begin with. All that it takes is a little bit of bad luck in the management of those supports, and you're cooked…you can actually be cooked—with global warming!"