Due to the serious pollution to the ecological environment, the disposal of used batteries has become one of the hotly discussed topics in the past two years. Recently, American scientists have invented a water-soluble battery, which will change the status quo.
Scientists from Iowa State University announced recently that they have invented a lithium-ion battery that can provide 2.5V for ordinary home calculators. It takes 15 minutes to provide power, and more importantly, the battery can complete 30 minutes after encountering water. Quick automatic dissolution. Foreign media commented that this will become the world's first commercially available battery with self-hydrolysis capability.
The Transient Electronics technology used in this water-soluble battery was originally designed for health care and environmental monitoring applications because the transient electrons would be exposed to light, heat, or water. Decompose yourself. Since it can provide a stable performance output in the working state, it can also be self-degraded later, so this technology can also be applied in the field of military confidential intelligence.
In a paper published in the International Journal of Polymer Science, the team described it as: Unlike traditional electronics engineering, the battery is designed to be as stable and long lasting as possible. One of the core features of transient electronic technology is that it can only be designed in advance. The power output is provided during the time period, and then it will degrade itself under water, light and other trigger conditions.
The team's head said: "Compared to our previous research on transient electronic technology, this battery unites the hard work of our team and the structure is much more complicated because it not only requires degradation, but also provides Stable power output."
The 1x5x6 mm size of this battery is similar to a common chip and it is very easy to integrate inside the device. The team also said that the internal battery is divided into 8 layers, including a positive electrode layer, a negative electrode layer, and an electrolytic separation layer. On top of the eight-story internal structure, a high-molecular polyvinyl alcohol material is also wrapped on the outside.
The team from Iowa State University also stated that at present, this type of battery can actually decompose on its own after being exposed to water, but some nanoscale particle structures inside the battery cannot be dissolved in water at present, so its water solubility is not 100%.
At present, although the battery's 15-minute 2.5-minute output capability is still slightly smaller, the team stated that it can easily increase capacity by combining multiple batteries. In addition, the water solubility characteristics of the battery obviously have a very broad application prospect in the future.
Source: theiet
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