The flowless zinc-bromine battery (FLZBB) is a promising alternative to flammable lithium-ion batteries due to its use of non-flammable electrolytes.
The flowless zinc-bromine battery is a promising alternative to flammable lithium-ion batteries due to its use of non-flammable electrolytes. However, it suffers from self-discharge due to the crossover of active materials, generated at the positive graphite felt electrode, to the negative electrode, significantly affecting performance. Now, researchers have developed a novel nitrogen-doped mesoporous carbon-coated GF electrode that effectively suppresses self-discharge.
To address this issue, a team of researchers led by Professor Chanho Pak and including integrated M.S. and Ph.D. student Youngin Cho from the Graduate School of Energy Convergence, Institute of Integrated Technology at Gwangju Institute of Science and Technology, Korea, developed a novel nitrogen-doped mesoporous carbon-coated thick GF electrode. Their study was made available online on April 22, 2024, and published in Volume 490 of the Chemical Engineering Journal on June 15, 2024.
The FLZBB with NMC/GF electrodes demonstrated excellent Coulombic and energy efficiencies of 96% and 76%, respectively, at a current density of 20 mA cm. Furthermore, the battery exhibited unprecedented durability, with charge/discharge cycling stability extended to over 10,000 cycles. Also, the thick GF electrode used can potentially reduce the overall price of the battery.
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