Three layers to multiply safety: this is the principle behind a new technology that promises to make lithium batteries safer than ever. A research team has developed a triple-layer electrolyte that not only prevents fires and explosions, but also improves the performance and life of batteries. How does it work? Let's see together.
The challenge of security
Conventional lithium batteries, as you know, have structural limitations that compromise their performance and safety. The main problem is the non-optimal contact with the electrodes and the formation of dendrites, tree-like structures that grow during charge and discharge cycles. These growths can disrupt battery connections, potentially causing fires and explosions.
It's a big problem. Because if it's true that electric cars catch fire more rarely than fossil fuel ones (would you have said it?) it is equally true that a fire that has broken out around an electric battery is very difficult to put out.
The triple layer innovation
To address the “hot” issues of electric batteries, the research team developed, as mentioned, this innovative triple-layer structure for the electrolyte. Each layer performs a specific function, significantly improving the safety and efficiency of the battery.
The electrolyte, to be precise, incorporates three key components: the decabromodiphenylethane (DBDPE) to prevent fires, the Zeolite to increase the resistance of the electrolyte and a high concentration of lithium salt LiTFSI to facilitate the rapid movement of ions.
An intelligent structure
The triple-layer battery features a tough middle layer that increases its mechanical strength, while its soft outer surface ensures excellent contact with the electrodes. This configuration allows for faster movement of lithium ions, improving energy transfer rates and effectively preventing dendritic formation.
The battery developed by the research team It retained approximately 87,9% of its performance after 1.000 charge and discharge cycles, demonstrating a significant improvement in durability
compared to traditional batteries, which typically maintain 70-80% of their performance.
Fire Resistant Properties
The most innovative feature of this triple layer battery is precisely its ability to self-extinguish in the event of a fire, significantly reducing safety risks. This property makes it particularly suitable for a wide range of applications, from portable devices such as smartphones and wearables to electric vehicles and large-scale energy storage systems.
Doctor Kim, one of the researchers involved in the project, commented positively on the results:
This research is expected to make a significant contribution to the commercialization of lithium batteries using solid polymer electrolytes, while providing greater stability and efficiency to energy storage devices.
The research was published in the journal Small, and I link it here.
A step towards the energy revolution
The triple-layer battery represents a significant advance in battery technology. The combination of improved safety, improved performance, and superior durability could accelerate the adoption of electric vehicles and energy storage systems, contributing to the transition to a more sustainable energy future.
The potential applications of this triple-layer technology are vast and could transform numerous industries. From consumer electronics to electric vehicles to industrial-scale energy storage systems, this innovation promises to make the entire energy value chain safer and more efficient.
But let's bet that not even she will be able to "cool down" the controversy between supporters of electric and those of fossil fuels?
