Micro-engineered electrodes could cut battery manufacturing costs
"As 3D printers gain increasing resolution, sodium ion batteries could eventually outperform lithium ion ones"
New, easily fabricated, high performance carbon microlattice electrodes could soon be used to make cheaper batteries powered by readily available sodium ions. The approach was published by Tohoku University researchers and colleagues in the journal Small.
The 3D-printed lattices were prepared in three different sizes. Carbonization through pyrolysis shrunk the electrode and increased its performance.
Tohoku University
Lithium ion batteries are used in a wide range of applications, from smartphones to electric cars, due to their high performance and ability to store large amounts of energy. However, manufacturing these batteries is costly, the metal’s reserves are quickly getting depleted, and its extraction can be harmful to the environment. Scientists want to reduce battery manufacturing costs and find a way to unlock the potential of the more widely available sodium ions.
Tohoku University materials scientist Akira Kudo, Ph.D. student at University of California Los Angeles Yuto Katsuyama and colleagues are looking at ways to achieve high performance, low cost batteries by increasing the loaded amount of active materials used to make a battery into a single battery cell. This would reduce the inactive materials that are used for binding multiple cells together. However, this requires the fabrication of thicker electrodes, which would restrict ion movement – and thus that of electric charge – within the battery.
Kudo and his team have addressed this by developing an approach that fabricates micro-architected, high performing negatively charged (anode) electrodes.
The approach involves using 3D stereolithography to print microlattice structures made from resin. The microlattices are then shrunk by carbonizing them via a process called pyrolysis. The resulting hard carbon anodes were found to allow fast transportation of energy-generating ions. Also, as the team made the lattice structure finer, its performance improved. As 3D printers gain increasing resolution, sodium ion batteries could eventually outperform lithium ion ones, says Kudo.
The team next aims to use this same approach to make positively charged (cathode) electrodes. The ultimate goal is to use these finely architected electrodes for making high-performing, cost-effective sodium ion batteries.
Original publication
Other news from the department science
These products might interest you
Battery Testing Services by Battery Dynamics
Learn more about the performance and service life of your battery cells in less time
Benefit from modern measurement technology and an experienced team
Batt-TDS by ystral
YSTRAL Batt-TDS mixing and dispersing machine
Boost your battery slurry process
Get the chemical industry in your inbox
From now on, don't miss a thing: Our newsletter for the chemical industry, analytics, lab technology and process engineering brings you up to date every Tuesday and Thursday. The latest industry news, product highlights and innovations - compact and easy to understand in your inbox. Researched by us so you don't have to.
Most read news
More news from our other portals
See the theme worlds for related content
Topic World Battery Technology
The topic world Battery Technology combines relevant knowledge in a unique way. Here you will find everything about suppliers and their products, webinars, white papers, catalogs and brochures.
Topic World Battery Technology
The topic world Battery Technology combines relevant knowledge in a unique way. Here you will find everything about suppliers and their products, webinars, white papers, catalogs and brochures.
