Researchers have developed a new aluminum-ion (Al-ion) battery that could change energy storage systems. Unlike lithium-ion (Li-ion) batteries that face capacity loss over time, this tech retains 99% of its capacity after 10,000 charge and discharge cycles. The tech break stems from its solid-state design. According to ACS Central Science, this tech reduces common issues like degradation and safety risks.
Wei Wang, one of the researchers that designed the battery said
“This new Al-ion battery design shows the potential for a long-lasting, cost-effective and high-safety energy storage system. The ability to recover and recycle key materials makes the technology more sustainable,”
A battery retaining 99% of its capacity after 10,000 charge cycles translates into a long battery life. Most Li-ion batteries face huge declines after 500–1,500 cycles, typically lasting 2–3 years in daily use. In contrast, this al-ion battery could remain near its original capacity for nearly 30 years if charged once a day. This long battery life could be a game changer in the tech industry.
If we have such a battery on our phones, it means goodbye to battery issues. It means that the battery will likely outlive the mobile phone. However, the con of this is that users may end up trashing good batteries. Thus, the Al-ion battery will be more suitable for devices that are designed to last for decades.
Key to renewable energy integration
As renewable energy sources like solar and wind expand, efficient storage solutions are crucial to ensure grid stability. Regular Li-ion batteries face issues such as high production costs, fire hazards, and reduced longevity. This makes them less ideal for large-scale use. Al-ion batteries present a viable option with their cheaper cost and enhanced durability.
This new battery takes care of the issues with the old aluminum-ion tech. It tackles common performance issues as well as the risks posed by liquid electrolytes. The research team achieved this by using a solid-state electrolyte stabilized with an inlet al-salt. This upgrade enhances the battery’s stability and reduces corrosion, a common issue in previous designs.
To make the system better, the researchers added fluoromethylene carbonate. This additive forms a protective layer on the electrodes. It stops the formation of damaging Al crystals.
The battery shows major resilience during testing. It was highly resistant to moisture and retains its physical and thermal stability. The battery also works well even at high temperatures of up to 200°C. It also endured repeated mechanical stress without cutting down on its performance.
A major pro of this battery is its recyclability. A huge portion of the al-salt can be easily recovered and reused. This makes the battery more sustainable than other options.
A good future for energy storage
This new battery brings a couple of upgrades that the industry needs. It comes with a longer life span, better safety, and reduced environmental impact. For this reason, it is a major step forward in the energy storage industry. As green energy grows, this idea helps shift to cleaner, better, and more steady power systems. By fixing Li-ion flaws, this tech gives a strong fix for grids storage, aiding a green and lasting future. As for when this battery will arrive in an actual device, there is no timeline. As far as we know, this battery is still a work in progress. Whether or not it will eventually fully meet its potential remains to be seen.
Source: Giz China
