Maxima in chronoamperometry of irreversible electrode reactions

Lovrić, Milivoj

doi:10.1016/j.jelechem.2021.115187

Cited by 1 publication

(1 citation statement)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Chronoamperometry (CA) tests also confirmed TEAN can limit the LSB electrode passivation (Figure 4c,d). According to the previous research [33][34][35], the maximum current (I m ) and its corresponding time (t m ) can be used to interpret the relative speed of passivation layer formation. In conventional electrolytes, t m is about 1000 s, while in TEAN electrolytes, t m is extended to about 1500 s. The results indicate that TEAN can effectively suppress the passivation of electrodes.…”

Section: Resultsmentioning

confidence: 99%

Dual-Functional Electrolyte Additive for Lithium–Sulfur Batteries Limits Lithium Dendrite Formation and Increases Sulfur Utilization Rate

Liu,

Wu,

et al. 2023

Batteries

View full text Add to dashboard Cite

Lithium–sulfur batteries (LSBs) have received great attention as promising candidates for next-generation energy-storage systems due to their high theoretical energy density. However, their practical energy density is limited by a large electrolyte-to-sulfur (E/S) ratio (>10 µL electrolyte/mg s), and their cycle performance encounters challenges from electrode passivation and Li dendrite formation. In this work, a dual-functional electrolyte additive of tetraethylammonium nitrate (TEAN) is presented to address these issues. NO3− as a high-donor-number (DN) salt anion can promote polysulfide dissolution, increase sulfur utilization, and alleviate electrode passivation. The tetraethylammonium cation can adsorb around Li protrusions to form a lithiophobic protective layer to inhibit the formation of Li dendrites. TEAN LSBs show improving capacity, cycling stability, and higher coulombic efficiency under lean electrolyte (5 μL electrolyte/mg s) conditions.

show abstract

Section: Resultsmentioning

confidence: 99%