Details
| Original language | English |
|---|---|
| Article number | 2300772 |
| Number of pages | 8 |
| Journal | Advanced electronic materials |
| Volume | 10 |
| Issue number | 4 |
| Publication status | Published - 9 Apr 2024 |
Abstract
Keywords
- 1,2,4,5-benzenetetramine tetrahydrochloride, electrolyte additive, lithium metal anode, solvent sheath
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In: Advanced electronic materials, Vol. 10, No. 4, 2300772, 09.04.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Constructing LiCl-Rich Solid Electrolyte Interphase by High Amine-Containing 1,2,4,5-Benzenetetramine Tetrahydrochloride Additive
AU - Lin, Zhihua
AU - Bettels, Frederik
AU - Li, Taoran
AU - Satheesh, Sreeja K.
AU - Liu, Yuping
AU - Zhang, Chaofeng
AU - Ding, Fei
AU - Zhang, Lin
PY - 2024/4/9
Y1 - 2024/4/9
N2 - Strategies that aim to achieve highly stable lithium metal batteries (LMBs) are extensively explored. To date, the controlled formation of high-quality inorganic SEI is still quite challenging, which requires a deep understanding and hence the fine-tuning of solvation chemistry by using functional additives in the electrolyte. In this work, a high amine-containing 1,2,4,5-benzenetetramine tetrahydrochloride (BHCL) is developed as a dual-function electrolyte additive for LMBs. The amine group with a high donor number increases the lithium affinity, while the phenyl group with a strong inductive effect prevents the decomposition of solvents, and the free chloride ions replace anions mediating the formation of the rigid inorganic LiCl-rich SEI layer. The experimental results corroborate the theoretical findings. The modified Li||Li symmetric battery is stably cycled for over 2500 h at 1 mA cm−2 current density with an overpotential of ≈45 mV. The performances of the Li||Cu and Li||LFP cells are also significantly enhanced. Therefore, this work provides a promising design principle of multifunctional electrolyte additive.
AB - Strategies that aim to achieve highly stable lithium metal batteries (LMBs) are extensively explored. To date, the controlled formation of high-quality inorganic SEI is still quite challenging, which requires a deep understanding and hence the fine-tuning of solvation chemistry by using functional additives in the electrolyte. In this work, a high amine-containing 1,2,4,5-benzenetetramine tetrahydrochloride (BHCL) is developed as a dual-function electrolyte additive for LMBs. The amine group with a high donor number increases the lithium affinity, while the phenyl group with a strong inductive effect prevents the decomposition of solvents, and the free chloride ions replace anions mediating the formation of the rigid inorganic LiCl-rich SEI layer. The experimental results corroborate the theoretical findings. The modified Li||Li symmetric battery is stably cycled for over 2500 h at 1 mA cm−2 current density with an overpotential of ≈45 mV. The performances of the Li||Cu and Li||LFP cells are also significantly enhanced. Therefore, this work provides a promising design principle of multifunctional electrolyte additive.
KW - 1,2,4,5-benzenetetramine tetrahydrochloride
KW - electrolyte additive
KW - lithium metal anode
KW - solvent sheath
UR - http://www.scopus.com/inward/record.url?scp=85179911582&partnerID=8YFLogxK
U2 - 10.1002/aelm.202300772
DO - 10.1002/aelm.202300772
M3 - Article
AN - SCOPUS:85179911582
VL - 10
JO - Advanced electronic materials
JF - Advanced electronic materials
SN - 2199-160X
IS - 4
M1 - 2300772
ER -