Recent progress of carbon-based electrocatalytic materials in Lithium-based batteries

Wang, Pengfei; Zhang, Jiahong; Ying, Peng; Hu, Xiulan; Miao, Lei; Ishizaki, Takahiro

doi:10.1016/j.susmat.2021.e00384

Cited by 4 publications

(1 citation statement)

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“…Metal–oxygen batteries are a promising alternative to lithium-ion batteries (LIB) for automotive applications due to their high theoretical energy density (3500 Wh kg –1 for lithium–air batteries, which is superior to that of gasoline 1700 Wh kg –1 ). − Nonetheless, many challenges need to be solved before their commercialization becomes a reality. Air cathodes are generally considered the main bottleneck for the performance of metal–O 2 systems.…”

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confidence: 99%

Innovative Strategy for Developing PEDOT Composite Scaffold for Reversible Oxygen Reduction Reaction

Del Olmo,

Dominguez-Alfaro,

Olmedo-Martínez

et al. 2024

J. Phys. Chem. Lett.

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Metal−air batteries are an emerging technology with great potential to satisfy the demand for energy in high-consumption applications. However, this technology is still in an early stage, facing significant challenges such as a low cycle life that currently limits its practical use. Poly(3,4-ethylenedioxythiophene) (PEDOT) conducting polymer has already demonstrated its efficiency as catalyst for oxygen reduction reaction (ORR) discharge as an alternative to traditional expensive and nonsustainable metal catalysts. Apart from that, in most electrochemical processes, three phenomena are needed: redox activity and electronic and ionic conduction. Material morphology is important to maximize the contact area and optimize the 3 mechanisms to obtain high-performance devices. In this work, porous scaffolds of PEDOT−organic ionic plastic crystal (OIPC) are prepared through vapor phase polymerization to be used as porous self-standing cathodes. The scaffolds, based on abundant elements, showed good thermal stability (200 °C), with potential ORR reversible electrocatalytic activity: 60% of Coulombic efficiency in aqueous medium after 200 cycles.

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confidence: 99%