Insights into quasi solid‐state polymer electrolyte: The influence of succinonitrile on polyvinylene carbonate electrolyte in view of electrochemical applications

Liu, Zelin; Zhang, Shu; Zhou, Qian; Zhang, Yidong; Liang, Dong; Shen, Yang-Huan; Fu, Xiangnan; Wang, Xinyi; Luo, Shiyu; Zheng, Yun; Yu, Peng; Chai, Jingchao; Liu, Zhihong; Cui, Guanglei

doi:10.1002/bte2.20220049

Cited by 11 publications

(2 citation statements)

References 63 publications

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“…[12][13][14][15][16] As the majority of current commercial LIBs contain liquid organic electrolytes composed of ionic salts dissolved in organic solvents, electrolyte leakage, and even combustion accidents occasionally occur, which hinders further reliable applications, especially in flexible and/or wearable devices. [17][18][19] Taking into account the safety concerns, much worldwide research effort has been made to the development of solid-state electrolyte (SSE) for high energy and better safety battery that not only eliminates the use of flammable organic solvents but also could remove the separator in the battery design. 20 However, most SSEs suffer from drawbacks such as high interfacial resistance, inferior room temperature (RT) ionic conductivity, and cumbersome processing.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, LIBs are leading EES systems widely used in both portable consumer smart electronics and the automotive industry, making energy use convenient, green, and continual 12–16 . As the majority of current commercial LIBs contain liquid organic electrolytes composed of ionic salts dissolved in organic solvents, electrolyte leakage, and even combustion accidents occasionally occur, which hinders further reliable applications, especially in flexible and/or wearable devices 17–19 . Taking into account the safety concerns, much worldwide research effort has been made to the development of solid‐state electrolyte (SSE) for high energy and better safety battery that not only eliminates the use of flammable organic solvents but also could remove the separator in the battery design 20 .…”

Section: Introductionmentioning

confidence: 99%

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Recent developments of nanocomposite ionogels as monolithic electrolyte membranes for lithium‐based batteries

Xie,

Chen,

Zhang

et al. 2023

Battery Energy

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To utilize intermittent renewable energy to achieve carbon neutrality, rechargeable lithium‐based batteries have been deemed to be the most promising electrochemical systems for energy supply and storage. However, there still exist safety issues and challenges, especially originating from the intrinsic volatility and flammability of the electrolytes used in lithium‐based batteries. Due to the unique advantages of better safety, (quasi) solid‐state electrolytes have been exploited. Ionogel (IG), known as ionic liquid (IL) based monolithic quasi‐solid‐state electrolyte separator, consists of IL and gelling matrix and has become an active area of research in lithium‐based battery technology, owing to fascinating exotic characteristics including high safety (thermal stability) under extreme operating conditions, wide processing compatibility, and decent electrochemical performances. Among various gelling matrices, nanomaterials are very promising to simultaneously enhance ionic conductivity, mechanical strength, and thermal and electrochemical properties of IGs, which make the nanocomposite ionogels (NIGs). Herein, several significant advantages of NIGs as monolithic electrolyte membranes are briefly described. Also, recent advances in the NIGs for Li‐ion batteries, Li‐metal batteries, Li‐S batteries, and Li‐O2 batteries are timely and systematically overviewed. Finally, the remaining challenges and perspectives on such an interesting and active field are discussed. To the best of our knowledge, there are rare review articles focusing on the NIGs for Li‐based batteries till now. This work could offer a comprehensive understanding of recent advances and challenges of NIGs for advanced lithium storage.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recent developments of nanocomposite ionogels as monolithic electrolyte membranes for lithium‐based batteries

Xie,

Chen,

Zhang

et al. 2023

Battery Energy

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Modulating the Li‐Ion Transport Pathway of Succinonitrile‐Based Plastic Crystalline Electrolytes for Solid‐State Lithium Metal Batteries

Ye,

Fu,

Zhang

et al. 2024

Adv Funct Materials

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Succinonitrile (SCN) based plastic crystal electrolytes (SPCEs) have attracted much attention for lithium metal batteries due to their considerable ionic conductivity and thermal stability. Insufficient mechanical properties, weak reductive stability, and the presence of free SCN molecules can result in adverse interfacial reactions. Polymer introduction has been explored to address these challenges. However, the introduction of polymer affects the SCN state, leading to reduced ionic conductivity, potentially due to limited segmental motion of the polymer at room temperature. Herein, a cross‐linked network polymer strategy is proposed to modify the Li‐ion transport pathway in SPCE, aiming to significantly improve the ionic conductivity. The strong interaction between the polymer matrix and SCN enhances their mutual solubility, reduces the crystallinity of SCN, and forms a rapid conduction pathway (polymer—[SCN—Li+]). The ionic conductivity of SPCE increases to 1.28 mS cm−1, with the Li‐ion migration number (tLi+ ) also rising to 0.7. Electrochemical performances in Li symmetrical, Li||LiFePO4 and Li||LiNi0.8Co0.1Mn0.1O2 cells show significant improvement at both room temperature and 0 °C. These findings suggest that designing polymer network structures in SPCEs holds promise for solid‐state lithium metal battery applications.

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Dual Ionic Pathways in Semi‐Solid Electrolyte based on Binary Metal–Organic Frameworks Enable Stable Operation of Li‐Metal Batteries at Extremely High Temperatures

Nguyen,

Ngo,

Kim

et al. 2024

Advanced Science

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The rapid development of the electronics market necessitates energy storage devices characterized by high energy density and capacity, alongside the ability to maintain stable and safe operation under harsh conditions, particularly elevated temperatures. In this study, a semi‐solid‐state electrolyte (SSSE) for Li‐metal batteries (LMB) is synthesized by integrating metal–organic frameworks (MOFs) as host materials featuring a hierarchical pore structure. A trace amount of liquid electrolyte (LE) is entrapped within these pores through electrochemical activation. These findings demonstrate that this structure exhibits outstanding properties, including remarkably high thermal stability, an extended electrochemical window (5.25 V vs Li/Li+), and robust lithium‐ion conductivity (2.04 × 10−4 S cm−1), owing to the synergistic effect of the hierarchical MOF pores facilitating the storage and transport of Li ions. The Li//LiFePO4 cell incorporating prepared SSSE shows excellent capacity retention, retaining 97% (162.8 mAh g−1) of their initial capacity after 100 cycles at 1 C rate at an extremely high temperature of 95 °C. It is believed that this study not only advances the understanding of ion transport in MOF‐based SSSE but also significantly contributes to the development of LMB capable of stable and safe operation even under extremely high temperatures.

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Insights into quasi solid‐state polymer electrolyte: The influence of succinonitrile on polyvinylene carbonate electrolyte in view of electrochemical applications

Cited by 11 publications

References 63 publications

Recent developments of nanocomposite ionogels as monolithic electrolyte membranes for lithium‐based batteries

Recent developments of nanocomposite ionogels as monolithic electrolyte membranes for lithium‐based batteries

Modulating the Li‐Ion Transport Pathway of Succinonitrile‐Based Plastic Crystalline Electrolytes for Solid‐State Lithium Metal Batteries

Dual Ionic Pathways in Semi‐Solid Electrolyte based on Binary Metal–Organic Frameworks Enable Stable Operation of Li‐Metal Batteries at Extremely High Temperatures

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