Enhanced safety electrolyte mixture of ionic liquids and lithium salt for Li-ion transference number (Li-T) in Li-Li symmetric coin cell

A series of ionic liquids can be simply prepared by mixing glymes and Li salts. The formed quasi-aza-crown cations of glymes and Li ion exhibit an efficient and excellent reversible absorption of sulfur dioxide.

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N-Allyl-N-Methyl Piperidinium Bis(Trifluoromethanesulfonyl) Imide as a Co-Solvent in Li-Ion Batteries

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.750-752.1194 ◽

2013 ◽

Vol 750-752 ◽

pp. 1194-1198 ◽

Cited By ~ 4

Author(s):

Jun Hui Zhou ◽

Cui Hua Li ◽

Bin Bin Yang

Keyword(s):

Lithium Salt ◽

Lithium Ion ◽

Decomposition Temperature ◽

Electrochemical Stability ◽

Li Ion Batteries ◽

Li Ion Battery ◽

Mixed Electrolyte ◽

Coin Cell ◽

Lithium Ion Cells ◽

Li Ion

Mixtures of an ionic liquid (IL) with organic solvents and a lithium salt have been studied in order to develop new electrolytes for lithium-ion cells with enhanced safety profiles. In this work, N-allyl-N-methylpiperidinium bis (trifluoromethanesulfonyl) imide (PP1ATFSI) was synthesized and characterized to exhibit high decomposition temperature and wide electrochemical stability window. The evaluation of the coin cell LiFePO4/Li with the mixed electrolyte based on PP1ATFSI with 0.35mol/kg LiTFSI, and 30 wt% VC/DMC (1:1) shows a nice reversibility and cycle performances. All above prove that PP1ATFSI is one of the most promising safety electrolytes of Li-ion battery.

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Ether‐functionalized Pyrrolidinium‐based Room Temperature Ionic Liquids: Physicochemical Properties, Molecular Dynamics, and the Li ion Coordination Environment

ChemPhysChem ◽

10.1002/cphc.202100380 ◽

2021 ◽

Author(s):

Kazuki Yoshii ◽

Takuya Uto ◽

Takakazu Onishi ◽

Daichi Kosuga ◽

Naoki Tachikawa ◽

...

Keyword(s):

Molecular Dynamics ◽

Ionic Liquids ◽

Physicochemical Properties ◽

Room Temperature ◽

Room Temperature Ionic Liquids ◽

Coordination Environment ◽

Li Ion

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Li2(BH4)(NH2) Nanoconfined in SBA-15 as Solid-State Electrolyte for Lithium Batteries

Nanomaterials ◽

10.3390/nano11040946 ◽

2021 ◽

Vol 11 (4) ◽

pp. 946

Author(s):

Qianyi Yang ◽

Fuqiang Lu ◽

Yulin Liu ◽

Yijie Zhang ◽

Xiujuan Wang ◽

...

Keyword(s):

Solid State ◽

High Performance ◽

Coulombic Efficiency ◽

Specific Capacity ◽

Transference Number ◽

Electrochemical Stability ◽

Ion Conductivity ◽

Solid State Batteries ◽

Li Ion ◽

Conduction Properties

Solid electrolytes with high Li-ion conductivity and electrochemical stability are very important for developing high-performance all-solid-state batteries. In this work, Li2(BH4)(NH2) is nanoconfined in the mesoporous silica molecule sieve (SBA-15) using a melting–infiltration approach. This electrolyte exhibits excellent Li-ion conduction properties, achieving a Li-ion conductivity of 5.0 × 10−3 S cm−1 at 55 °C, an electrochemical stability window of 0 to 3.2 V and a Li-ion transference number of 0.97. In addition, this electrolyte can enable the stable cycling of Li|Li2(BH4)(NH2)@SBA-15|TiS2 cells, which exhibit a reversible specific capacity of 150 mAh g−1 with a Coulombic efficiency of 96% after 55 cycles.

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A simple synthesis of nitrogen-sulfur co-doped porous carbon using ionic liquids as dopant for high rate performance Li-ion batteries

Journal of Electroanalytical Chemistry ◽

10.1016/j.jelechem.2018.12.042 ◽

2019 ◽

Vol 834 ◽

pp. 17-25 ◽

Cited By ~ 7

Author(s):

Mengqi Du ◽

Yanshuang Meng ◽

Chen Wang ◽

Chaoyu Duan ◽

Fuliang Zhu ◽

...

Keyword(s):

Ionic Liquids ◽

Porous Carbon ◽

Simple Synthesis ◽

High Rate ◽

Rate Performance ◽

Li Ion Batteries ◽

Li Ion ◽

High Rate Performance ◽

Co Doped

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Contribution Succinonitrile additive for Performa LiTFSi Solid Polymer Electrolytes for Li-Ion Battery

Eksakta Jurnal Ilmu-Ilmu MIPA ◽

10.20885/eksakta.vol1.iss2.art2 ◽

2020 ◽

Vol 20 (2) ◽

Author(s):

Qolby Sabrina ◽

Titik Lestariningsih ◽

Christin Rina Ratri ◽

Achmad Subhan

Keyword(s):

Ionic Conductivity ◽

Polymer Electrolytes ◽

Room Temperature ◽

Lithium Salt ◽

Ionic Conduction ◽

Lithium Ion ◽

Solid Polymer Electrolytes ◽

Solid Polymer ◽

Half Cell ◽

Li Ion

Solid polymer electrolyte (SPE) appropriate to solve packaging leakage and expansion volume in lithium-ion battery systems. Evaluation of electrochemical performance of SPE consisted of mixture lithium salt, solid plasticizer, and polymer precursor with different ratio. Impedance spectroscopy was used to investigate ionic conduction and dielectric response lithium bis(trifluoromethane)sulfony imide (LiTFSI) salt, and additive succinonitrile (SCN) plasticizer. The result showing enhanced high ionic conductivity. In half-cell configurations, wide electrochemical stability window of the SPE has been tested. Have stability window at room temperature, indicating great potential of SPE for application in lithium ion batteries. Additive SCN contribute to forming pores that make it easier for the li ion to move from the anode to the cathode and vice versa for better perform SPE. Pore of SPE has been charaterization with FE-SEM. Additive 5% w.t SCN shows the best ionic conductivity with 4.2 volt wide stability window and pretty much invisible pores.

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