LiF and LiNO3 as synergistic additives for PEO-PVDF/LLZTO-based composite electrolyte towards high-voltage lithium batteries with dual-interfaces stability

Li, Liansheng; Deng, Yuanfu; Duan, Huanhuan; Qian, Yunxian; Chen, Guohua

doi:10.1016/j.jechem.2021.05.055

Cited by 60 publications

(32 citation statements)

References 60 publications

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“…After adding the LiNO 3 additive, the oxidation potential of PEP-LF-LN decreased to 4.5 V which is like another PEO-based system. [32] Even after adding LiNO 3 , the electrochemical stability of PEP-LF-LN decreases, but the SPE is still stable within the potential window of LFP. To further investigate the difference between the SEI layers formed with or without addition of LiNO 3 in the P(EO/PO)-LiFSI-based electrolyte, interface resistance (R i ) between lithium electrode and SPE were measured for symmetric Li|SPE|Li cells using the electrochemical impedance spectroscopy (EIS).…”

Section: Resultsmentioning

confidence: 99%

Enhanced Performance of All‐Solid‐State Li Metal Battery Based on Polyether Electrolytes with LiNO₃ Additive

Cui

Inoue

Hassoun

et al. 2021

Macro Chemistry & Physics

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Lithium metal is one of the most promising anode candidates for high-energy-density rechargeable batteries. However, uncontrolled lithium dendrites and other safety issues limit their practical applications. In this work, solid polymer electrolytes based on ethylene oxide and propylene oxide random copolymer (P(EO/PO)) and lithium bis(fluorosulfonyl)imide (LiFSI) with lithium nitrate (LiNO 3 ) electrolyte additive are prepared. The LiNO 3 is expected to form stable and adequate solid electrolyte interphase (SEI) layer to regulate the lithium deposition and limit lithium dendrites during cycles. As the results, it is cleared that the addition of LiNO 3 to P(EO/PO)-LiFSI-based electrolyte effectively reduces the lithium/electrolyte interface resistance, decreases the polarization voltage during charging and discharging, and improves the cycle stability.

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Section: Resultsmentioning

confidence: 99%

Enhanced Performance of All‐Solid‐State Li Metal Battery Based on Polyether Electrolytes with LiNO₃ Additive

Cui

Inoue

Hassoun

et al. 2021

Macro Chemistry & Physics

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“…PEOpoly(vinylidene fluoride)/Li 6.5 La 3 Zr 1.5 Ta 0.5 O 12 -based composite SPE possessed good electrochemical stability in LMBs with high-voltage cathode LiNi 0.8 Mn 0.1 Co 0.1 O 2 (NCM811). [10] However, N, N-dimethylformamide solvent was not easy to be completely removed, which may lead to side reactions. For these ex situ methods of fabricating SPEs, their interface with electrodes was poor and utilization of large amounts of toxic organic solvents can cause environmental pollution.…”

Section: Doi: 101002/smtd202201114mentioning

confidence: 99%

In Situ Constructing Ultrathin, Robust‐Flexible Polymeric Electrolytes with Rapid Interfacial Ion Transport in Lithium Metal Batteries

Chen

Zhu

et al. 2022

Small Methods

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Safety of lithium metal batteries (LMBs) has been improved by using the solid‐state polymer electrolytes, but the performance of LMBs is still troubled by the poor interface of solid electrolytes/electrodes, leading to insufficient interfacial Li+ transport. Here, a novel ultrathin, robust‐flexible polymeric electrolyte is achieved by in situ polymerization of 1,3‐dioxolane in soft nanofibrous skeleton at room temperature without any extra initiator or plasticizer, leading to the electrolyte with rapid interfacial ion transport. This facilitated Li+ transportation is demonstrated by molecular dynamics simulation. Consequently, the as‐prepared electrolyte exhibits excellent cycling performance. The results indicate that the electrolyte works well in the LiFePO4//Li cell at elevated temperature up to 90 °C, and further matches with the high‐voltage LiNi0.8Mn0.1Co0.1O2 cathode. This study provides an effective approach to constructing a practical polymeric electrolyte for fabrication of safe, high performance LMBs.

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“…34 Recently, the strategy of using additives has shown great potential in synthesizing high-performance polymer electrolytes. 14,35–38 For example, Goodenough and co-workers added 0.5 wt% Mg(ClO 4 ) 2 into a PEO-based electrolyte to regulate Li + transport and manipulate the Li metal/electrolyte interfacial performance. 14 Fan et al reported that succinonitrile can be used as a versatile additive for PEO- and PVDF-based polymer electrolytes for increasing ionic conductivity and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

An organic additive assisting with high ionic conduction and dendrite resistance of polymer electrolytes

et al. 2022

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LiF and LiNO3 as synergistic additives for PEO-PVDF/LLZTO-based composite electrolyte towards high-voltage lithium batteries with dual-interfaces stability

Cited by 60 publications

References 60 publications

Enhanced Performance of All‐Solid‐State Li Metal Battery Based on Polyether Electrolytes with LiNO₃ Additive

Enhanced Performance of All‐Solid‐State Li Metal Battery Based on Polyether Electrolytes with LiNO₃ Additive

In Situ Constructing Ultrathin, Robust‐Flexible Polymeric Electrolytes with Rapid Interfacial Ion Transport in Lithium Metal Batteries

An organic additive assisting with high ionic conduction and dendrite resistance of polymer electrolytes

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LiF and LiNO3 as synergistic additives for PEO-PVDF/LLZTO-based composite electrolyte towards high-voltage lithium batteries with dual-interfaces stability

Cited by 60 publications

References 60 publications

Enhanced Performance of All‐Solid‐State Li Metal Battery Based on Polyether Electrolytes with LiNO3 Additive

Enhanced Performance of All‐Solid‐State Li Metal Battery Based on Polyether Electrolytes with LiNO3 Additive

In Situ Constructing Ultrathin, Robust‐Flexible Polymeric Electrolytes with Rapid Interfacial Ion Transport in Lithium Metal Batteries

An organic additive assisting with high ionic conduction and dendrite resistance of polymer electrolytes

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Enhanced Performance of All‐Solid‐State Li Metal Battery Based on Polyether Electrolytes with LiNO₃ Additive

Enhanced Performance of All‐Solid‐State Li Metal Battery Based on Polyether Electrolytes with LiNO₃ Additive