2024
DOI: 10.1039/d3fd00082f
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Evaluation of performance metrics for high energy density rechargeable lithium–oxygen batteries

Abstract: The demand for practical implementations of rechargeable lithium–oxygen batteries (LOBs) has recently grown owing to their extremely high theoretical energy density. However, the factors determining the performance of high cell-level...

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Cited by 5 publications
(3 citation statements)
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“…[17,18] As an example, a sudden increase in voltage during the initial part of the charging process has been observed in trials with an LOB incorporating a lean electrolyte and with a high areal capacity. [19,20] Notably, replacing the conventional carbon fiber GDL with a hydrophobic poly(tetrafluoroethylene) layer suppresses increases in the charging voltage. These results suggest that interactions between the GDL and the electrolyte can modify the charging voltage profile.…”
Section: Electrolyte Movement Phenomenonmentioning
confidence: 99%
“…[17,18] As an example, a sudden increase in voltage during the initial part of the charging process has been observed in trials with an LOB incorporating a lean electrolyte and with a high areal capacity. [19,20] Notably, replacing the conventional carbon fiber GDL with a hydrophobic poly(tetrafluoroethylene) layer suppresses increases in the charging voltage. These results suggest that interactions between the GDL and the electrolyte can modify the charging voltage profile.…”
Section: Electrolyte Movement Phenomenonmentioning
confidence: 99%
“…For example, the cycle life of LOBs and LABs assembled with different electrolyte amounts and carbon electrodes with different thicknesses, the cycle numbers are completely different. 109 Moreover, the differences in testing conditions may present a false impression of “enhanced battery performance”, and the cycle time and cycle numbers of LOBs can be varied with the cycling areal capacity and current densities. The electrochemical stability of Li-metal of Li/Li symmetrical cells and coulombic efficiency of Li/Cu asymmetrical cells cycled in Ar and O 2 atmosphere are completely different; thus, we suggest the electrochemical stability and reversibility of Li-metal should be operated in practical O 2 or ambient air (different partial pressures of O 2 ) environment, not pure Ar atmosphere.…”
Section: Concerns and Perspectivesmentioning
confidence: 99%
“…Energies are integrated and electrons flow frameworks (MOFs) [53][54][55][56][57], covalent organic frameworks (COFs) [58][59][60][61][62], mesoporous materials [63][64][65][66][67] is also useful. Not limited to these typical materials forms, various integrated structures are used for advanced functions including sensors [68][69][70][71][72], devices [73][74][75][76][77], batteries [78][79][80][81][82], fuel cells [83][84][85][86][87], solar cells [88][89][90][91][92], supercapacitors [93][94][95][96][97], and so on. Engineering fabrication techniques such as lithography also have a wide range of applications [98][99]…”
Section: Introductionmentioning
confidence: 99%