A calcium metal battery that lasts over 500 cycles



Researchers at Japan’s Tohoku University have developed a prototype calcium battery with a long service life of more than 500 charge-discharge cycles. The battery was developed using a hydride-based electrolyte and a copper sulfide nanoparticle/carbon composite cathode.

To overcome these limitations, researchers at Japan’s Tohoku University recently developed a prototype rechargeable calcium metal battery capable of charging and discharging over 500 cycles. The battery was developed with a hydride-based electrolyte and copper sulfide (CuS) nanoparticle/carbon composite cathode. It showed better performance than state-of-the-art calcium metal batteries in both speed and lifetime.

Combination of CuS/C nanocomposite and tailored Ca(CB) monocarborane electrolyte solution11B12)2 in dimethoxyethane/tetrahydrofuran (DME/THF) enabled a calcium metal battery with 92% capacity retention based on 10th cycle capacity.

“This study confirms the feasibility of long-term operation of Ca metal anodes and may accelerate the development of Ca metal batteries,” the researchers wrote in the paper, “Calcium metal batteries with long lifetimes using hydride-based electrolyte and copper sulfide electrode.” which was recently published in Advanced science.

David is a passionate writer and researcher who specializes in solar energy. He has a strong background in engineering and environmental science, which gives him a deep understanding of the science behind solar power and its benefits. David writes about the latest developments in solar technology and provides practical advice for homeowners and businesses who are interested in switching to solar.

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