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Full gradient compensation of LiNO3 in the suspension electrolyte for lithium metal batteries.
- Source :
-
Journal of Power Sources . May2024, Vol. 603, pN.PAG-N.PAG. 1p. - Publication Year :
- 2024
-
Abstract
- Uncontrolled side reactions between lithium metal and organic electrolytes seriously deteriorates the stability of corresponding battery due to the non-uniform Li+ deposition. Using lithium nitrate (LiNO 3) as an additive can adjust the components in solid-electrolyte-interphase (SEI) for optimizing of lithium metal interface. However, the low solubility and rapid consumption of LiNO 3 in ester-based electrolytes limit its further application. Herein, a kind of suspension electrolyte containing micron-sized LiNO 3 particles is reported to realize a full gradient compensation against the consumption of NO 3 −. Benefiting from the uniformly dispersion of LiNO 3 particles, a SEI layer containing even-distributed Li 3 N and LiN x O y with high content is constructed that promotes the rapid and uniform plating of Li+. Consequently, the Li/Cu batteries present a polarization of only 15–20 mV, and exhibit a consistent performance for 230 cycles with the CE of 98.1%, which is 4 times than that of conventional carbonate electrolytes. In addition, the cycling life of the assembled Li/NCM811 batteries can be extended to 260 cycles with a high capacity retention of 82.4 %. A kind of suspension electrolyte containing micron-sized LiNO 3 particles is reported to realize a full gradient compensation against the consumption of NO 3 −. Benefiting from the uniformly dispersion of LiNO 3 particles, a SEI layer containing even-distributed Li 3 N and LiN x O y with high content is constructed that promotes the rapid and uniform plating of Li+. [Display omitted] • Suspension electrolyte brings a full gradient compensation of NO 3 − against the consumption on Li metal surface. • The full gradient compensation of NO 3 − promotes the uniform formation of Li 3 N and LiN x O y in SEI. • The Li + conductivity of SEI is significantly enhanced, reducing the polarization of Li/Cu batteries to only 15–20 mV. • High performance is achieved with 260 cycles in Li/NCM811 batteries at a high capacity retention of 82.4 %. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03787753
- Volume :
- 603
- Database :
- Academic Search Index
- Journal :
- Journal of Power Sources
- Publication Type :
- Academic Journal
- Accession number :
- 176542628
- Full Text :
- https://doi.org/10.1016/j.jpowsour.2024.234452