KRICT researchers develop cathode technology for high-capacity batteries

Researchers at the Korea Research Institute of Chemical Technology (KRICT) have developed a novel cathode technology that has the potential to significantly increase battery energy storage capacity without expanding their size or weight. The team, spearheaded by senior researchers Moon San and Suk Jung-don, created a dry thick cathode technology that enhances lithium ion movement within electrode structures.

This groundbreaking research was highlighted as the cover article in the prestigious academic journal Exploration in August, with post-master's researcher Eun Hye-ji taking the lead as first author. The innovation incorporates graphitic carbon nitride as an additive in dry cathodes for the first time, which facilitates the electrolyte's deeper penetration into the electrode. This development reduces the energy needed for lithium ions to enter the cathode material, a crucial factor in improving battery performance.

One method for creating high-energy-density batteries involves increasing electrode thickness, allowing more active material to be packed into a given area. Nonetheless, a thicker electrode poses a challenge as lithium ions experience increased difficulty in moving through it, thereby limiting the battery's ability to fully leverage its energy storage potential. This new dry thick cathode technology addresses this issue, offering a promising solution for the next generation of high-capacity batteries.