German university develops smaller-than-dust battery
German university develops smaller-than-dust battery, electronics has been moving towards miniaturization, small microelectronic devices, such as sensor systems implanted in the human body, need computers and batteries smaller than a grain of dust. German universities have developed batteries smaller than a speck of dust.
German university developed a battery smaller than a speck of dust.1On February 23rd, the journal Advanced Energy and Raw Materials published a paper showing that a team of researchers at the Chemnitz University of Technology in Germany developed the world's smallest battery, which is even smaller than a speck of dust in the air, and which can be used to directly power a microcomputer the size of a speck of dust.
It is understood that there are already many sensors or miniature smart devices on the market that can be implanted in the body, and they are embedded inside and dust-sized computers for processing and storing data. As these sensors or smart devices get smaller and smaller, it becomes more and more difficult to power them.
Many of the miniature batteries used in these devices store power by stacking thin films on a chip, which has very limited power and many limitations. The Chemnitz University of Technology research team opted to roll up the films so that they could store more power, an idea that has had initial success.
The world's smallest battery can also be recharged over and over again, providing more than 10 hours of battery life for a microcomputer on a full charge. In the future, the team also intends to develop rechargeable batteries with an energy storage density of 100 μW/c㎡, which can be applied to more microcomputer scenarios. Unfortunately, this new battery is only a PPT product for the time being, and does not have the conditions for marketization.
It is understood that the medical field has long been exploring the feasibility of using "micro-robotics" to treat diseases, and has also developed a number of micro-electronic robots that can be implanted into the body and treat diseases. Also at the Chemnitz University of Technology in Germany, a research team led by Prof. Oliver G. Schmidt developed the world's smallest micro-robot in 2020, with dimensions of 0.8*0.8*0.14mm, which is able to carry medication directly into the body and deliver it to a designated area for a more targeted therapeutic effect.
Professor Mark Miskin of the University of Pennsylvania and his team also developed a micro-robot with legs that can walk, envisioned for use in the semiconductor field, which can be used to repair cell phone batteries, chips, and even for exploring human brain signals.
Although these micro-robots and micro-computers are particularly distant from the average person, they do appear to be more mature in some areas. The birth of the micro-computer, for the exploration of the mysteries of the human body, the treatment of some diseases is really particularly helpful, the future if the micro-computer to understand the human body . More characteristics, some incurable diseases may also be able to be cured one day.
Still very optimistic about the future of micro-computers and micro-batteries, I hope to see them in more areas.
German university develops batteries smaller than dust2
Scientists at Chemnitz University of Technology in Germany and the Changchun Institute of Applied Chemistry in China wrote in the journal Advanced Materials for Energy that they have developed the world's smallest batteries to date, which can power computers the size of a speck of dust, and which are expected to play a major role in the Internet of Things, micro-medical implants, micro-robotics systems, and ultra-flexible electronics in the future.
Electronics
Electronics have been moving toward miniaturization, and small microelectronic devices such as sensor systems implanted in the human body require computers and batteries smaller than a speck of dust. But so far, the trend has been hampered by two major factors: the lack of a power source that can run anywhere, and the difficulty of producing microbatteries that can be integrated.
Scientists say that it is possible to power tiny sub-millimeter computers by developing suitable batteries, or "harvested" power generation methods. However, current production methods for miniature batteries are very different from those for ordinary batteries, such as compact batteries (button cells, etc.) that have high energy density and are made using wet chemistry, and microbatteries produced using this standard technology provide good energy and power density, but are significantly larger than 1 square millimeter in diameter.
The research team's goal was to design a battery with a diameter of less than 1 square millimeter that could be integrated on a chip and still have a minimum energy density of 100 microwatt-hours per square centimeter. To achieve this, the team integrated collectors and electrode strips on a miniature scale - a similar process that Tesla is using on a large scale to make batteries for its electric cars.
The researchers used what is known as a "Swiss roll" or "micro origami" process. They continuously apply thin layers of polymers, metals, and dielectric materials to the surface of a wafer, creating a layered system with inherent tension. When the layers are peeled off, they release mechanical tension and then automatically spring back into a "Swiss roll". As a result, no external force is required to create a self-coiling cylindrical microbattery.
Using this approach, the team created the smallest microbattery ever that can be recharged over and over again, smaller than a grain of salt, and capable of powering the world's smallest computer chip for about 10 hours. Moreover, the method is compatible with existing chip fabrication techniques, enabling the production of high-throughput microbatteries on the surface of a wafer.
The researchers say that this microbattery is expected to be useful in areas such as the Internet of Things and miniature medical implants within future micro- and nano-electronic sensors and actuators. They say the technology still has huge potential for optimization, and more powerful microbatteries could emerge in the future.
German university develops batteries smaller than dust3February 23, BST - A team of researchers from Germany's Chemnitz University of Technology published a paper in the journal Advanced Materials for Energy saying they have developed the world's smallest battery that could power computers the size of a speck of dust.
Tiny smart devices, including sensors that can be implanted in the human body, require computers smaller in size than a speck of dust to process data. As smart devices get smaller and smaller, powering them becomes a challenge.
Current microbatteries store power by stacking thin films on a chip
Existing microbatteries store power by stacking thin films on a chip, but their size is limited by the amount of power they can store. To solve this challenge, a team of researchers at Chemnitz University of Technology rolled up the film to store more power.
The new battery can be recharged repeatedly to power a microcomputer for up to 10 hours. The new battery is not yet ready for market.
Their goal is to develop a rechargeable battery with an energy storage density of 100 microwatts per square centimeter, which would be suitable for most microcomputer scenarios, including measuring ambient temperature.