Cation effect on ionic liquid-involved polymer electrolytes for solid-state lithium metal batteries

Lin, Xiujing; Liu, Xinshuang; Xu, Shiyuan; Liu, Zeyu; Chen, Zhao; Liu, Ruiqing; Li, Pan; Feng, Xiang; Ma, Yanwen

doi:10.1039/d1nj06210g

Cited by 6 publications

(3 citation statements)

References 44 publications

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“…From the design perspective, PMMA is used as the matrix of electrolyte because of its chemical stability towards Li, which endows the novel polymer electrolyte with wide electrochemical window. 28 The EMIM + facilitates superior cationic solvation and serves as an H-bonding donor, which could generate hydrogen bonds with oxygen-containing groups of PMMA (Fig. 1(b)), 29,30 making the polymer compatible with high Li + transport and fast selfhealing ability.…”

Section: Introductionmentioning

confidence: 99%

A self-healing polymerized-ionic-liquid-based polymer electrolyte enables a long lifespan and dendrite-free solid-state Li metal batteries at room temperature

Lin

Tong

et al. 2023

Mater. Horiz.

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Section: Introductionmentioning

confidence: 99%

A self-healing polymerized-ionic-liquid-based polymer electrolyte enables a long lifespan and dendrite-free solid-state Li metal batteries at room temperature

Lin

Tong

et al. 2023

Mater. Horiz.

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“…A number of solid electrolyte options have been considered for ASSBs, including ceramic conductors (such as LLZO, − LATP, − sulfides, , oxyhalides, , etc. ), deep eutectic solvent (DES)-based self-healing polymer electrolytes, − solid polymer electrolytes (SPEs), and composites (e.g., polymers combined with ceramics). − In the class of SPEs, there are also several subclasses, for example SPEs consisting of a binary mixture of a polymer host and a lithium salt; − polymers containing a low molecular weight plasticizer in addition to the lithium salt to enhance ion mobility; − ionogels, where high content ionic liquid-based electrolytes are incorporated into a polymer network structure; − and ternary systems, where the major components are the polymer and lithium salt, and ionic liquid (IL) is also included to further enhance conductivity …”

Section: Introductionmentioning

confidence: 99%

Solid State Li Metal/LMO Batteries based on Ternary Triblock Copolymers and Ionic Binders

Forsyth

Makhlooghiazad

Mendes

et al. 2023

ACS Appl. Energy Mater.

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Triblock copolymers containing an ionophilic polymerized ionic liquid block, sandwiched between two ionophobic polystyrene blocks, were investigated as solid polymer electrolytes (SPE) to simultaneously provide mechanically robust, free-standing membranes with high lithium conductivity and an optimized electrolyte composition. The conductivity reached 8 × 10–5 S cm–1 and 6.5 × 10–4 S cm–1 at 30 and 80 °C, respectively, with an anodic stability above 4.5 V. Highly stable Li metal symmetric cycling was demonstrated, with an overpotential of 130 mV for over 300 h at 50 °C at a current density of 0.5 mA cm–2/0.5 mAh cm–2. Attempts were also made to incorporate the SPE as the binder in an LMO cathode formulation. The best cell performance, however, was obtained when substituting the SPE in the LMO cathode formulation with a PMA solid-state gel electrolyte, resulting in a high-performance solid-state Li|polymer eletrolyte|LMO device with stable cycling at C/5, and an impressive capacity retention (i.e., 105 mAh g–1 after 150 cycles at 0.1 mA cm–2) with a Coulombic efficiency around 99.4%.

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“…For example, TFSI − performs well in battery applications with wide ESW and low crystallinity. Additionally, pyrrole cations with different side chains (Pyr 13 , Pyr 14 , and Pyr 12O1 ) all have good stability with lithium anodes and are conducive to the research about amorphous polymer electrolytes [17,18] …”

Section: Introductionmentioning

confidence: 99%

Hybrid Ionogel Electrolytes for Advanced Lithium Secondary Batteries: Developments and Challenges

Tao

et al. 2022

Chemistry An Asian Journal

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Incidents in the use of lithium-ion batteries are usually caused by the malfunction of flammable organic liquid electrolytes with poor thermal stability. Therefore, the development of noncombustible electrolytes is regarded as one of the most effective means to prevent the safety hazards of lithium-ion batteries. Ionic liquids have attracted much interest recently, mainly due to their high ionic conductivity, low volatility, and incombustibility. The application of ionic liquids to the preparation of quasi-solid-state gel electrolytes combines the advantages of ionic liquids and avoids the risks of organic liquid electrolytes. Therefore, the solid-state ionogels have been considered as a promising alternative electrolyte system, especially for the much-desired energy storage devices with higher energy density and flexibility. This review focuses on the recent progress of ionogel electrolytes for lithium-ion batteries. The preparation strategies for ionogel electrolytes based on different frameworks, namely inorganic matrix, organic matrix, and organicinorganic hybrid matrix, are discussed. Subsequently, efforts to improve the properties of the ionogel electrolytes, including the ionic conductivity, mechanical properties, and lithium-ion transfer number, are summarized. Besides, the applications of ionogel electrolytes in high-voltage lithiumion batteries and lithium metal batteries as well as the batteries under extreme environments are outlined. Finally, the perspectives on studying and improving the performances of ionogel electrolytes for advanced lithium-ion batteries are provided.

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Cation effect on ionic liquid-involved polymer electrolytes for solid-state lithium metal batteries

Abstract: Solid polymer electrolytes (SPEs) for lithium metal batteries (LMBs) exhibit predominant safety over traditional carbonate-based organic liquid electrolytes. However, the low ionic conductivity of SPEs related to crystallinity at room...

Cited by 6 publications

References 44 publications

A self-healing polymerized-ionic-liquid-based polymer electrolyte enables a long lifespan and dendrite-free solid-state Li metal batteries at room temperature

A self-healing polymerized-ionic-liquid-based polymer electrolyte enables a long lifespan and dendrite-free solid-state Li metal batteries at room temperature

Solid State Li Metal/LMO Batteries based on Ternary Triblock Copolymers and Ionic Binders

Hybrid Ionogel Electrolytes for Advanced Lithium Secondary Batteries: Developments and Challenges

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