Synapse
⌘+K
Synapse
PulseExploreClubsResearchersJournals
Instagram
HomeClubsExplore
April 10, 2026EnergiesOpen Access

Highly Concentrated Carbonate Electrolytes for Stable High-Voltage Lithium Metal Batteries

View Full Paper
Ask AI
Bookmark
Share

Authors

QCQi ChenYMYide MaLWLinlin Wang

Discussion

Loading...

Member takes

Overview

Experimental analysis demonstrates improved cycling stability and efficiency in lithium metal batteries with concentrated electrolytes, indicating a promising approach for high-voltage applications.

Key Points

  • This research aims to develop and evaluate a new highly concentrated electrolyte system for lithium metal batteries to enhance performance and stability.
  • Developed high-concentration electrolyte system using 2,2,2-trifluoroethyl methyl carbonate (FEMC) and lithium bis(fluorosulfonyl)imide (LiFSI).
  • Tested the electrolyte's performance in Li/Cu and Li/Li symmetric cells.
  • Conducted cycling tests with LiNi0.8Co0.1Mn0.1O2 (NCM811) full cells for capacity retention assessment.
  • Performed post-mortem analysis to examine interface compositions and structures.
  • Optimized 4 M LiFSI–FEMC electrolyte achieved the highest Coulombic efficiency for lithium plating/stripping.
  • Demonstrated minimal capacity fade over 250 cycles in full cells.
  • Enabled stable cycling at 4.6 V for over 120 cycles with 88.61% capacity retention.
  • Revealed uniform solid electrolyte interphase and thinner cathode electrolyte interphase, contributing to enhanced performance.

Cite This Study

Chen et al. (2026) studied this question.

synapsesocial.com/papers/69d896046c1944d70ce072d3https://doi.org/10.3390/en19071805
View Full Paper
Ask AI
Bookmark
Share