Single Lithium-Ion Conducting Solid Polymer Electrolyte with Superior Electrochemical Stability and Interfacial Compatibility for Solid-State Lithium Metal Batteries

Yuan, Huatang; Luan, Jingyi; Yang, Zelin; Zhang, Jian; Wu, Yufeng; Lu, Zhouguang; Liu, Hongtao

doi:10.1021/acsami.9b20436

Cited by 99 publications

(66 citation statements)

References 56 publications

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“…Lithium poly[(cyano)(4‐styrenesulfonyl)imide] (LiPCSI) comprising highly delocalized anions and antioxidant cyano groups was designed and synthesized, which was dispersed in PEO to construct a free‐standing and flexible electrolyte membrane (Figure 5c). [ 79 ] By optimizing the ratio of Li ions and ethylene oxide units (Li + /EO), high ionic conductivity of 7.33 × 10 −5 S cm −1 at 60 °C was obtained at EO/Li + = 8. This was ascribed to the strong electron‐withdrawing cyano groups in this PSE, which promoted anionic delocalization and thus liberation of lithium ions.…”

Section: Pses With An Architecturally Engineered Polymer Matrixmentioning

confidence: 99%

Polymer‐Based Solid Electrolytes: Material Selection, Design, and Application

Guan

Xiao

Wang

et al. 2020

Adv Funct Materials

199

149

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Polymer‐based solid electrolytes (PSEs) have attracted tremendous interests for the next‐generation lithium batteries in terms of high safety and energy density along with good flexibility. Remarkable performances have been demonstrated in PSEs, which endowed PSEs with the potential to replace liquid electrolytes to meet the market demands. In this review, polymer matrices, different polymer architectures, and functional filler materials used in PSEs are discussed to explore the design concepts, methodologies, working mechanisms, and pros and cons of various PSEs. In addition, their recent notable applications in all‐solid‐state lithium ion batteries, lithium–sulfur batteries, suppression of lithium dendrites, and flexible lithium batteries are also introduced. Finally, the challenges and future prospects are sketched to provide strategies to explore novel PSEs for high‐performance all‐solid‐state lithium batteries.

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Section: Pses With An Architecturally Engineered Polymer Matrixmentioning

confidence: 99%

Polymer‐Based Solid Electrolytes: Material Selection, Design, and Application

Guan

Xiao

Wang

et al. 2020

Adv Funct Materials

199

149

View full text Add to dashboard Cite

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“…Li + ions can migrate from one anion group to another without the aid of segmental motion. [ 218 ] Also, Zhang and co‐workers developed lithium poly((4‐styrenesulfonyl) (trifluoromethanesulfonyl) imide) polysalts in PEO that are highly cationic conductive ( t Li + = 0.63) because only Li + ions located in the TFSI groups can easily jump between anion groups due to the low dissociation energy of Li + and high structural flexibility (Figure 9d). [ 219 ] The ion transfer mechanism of polymer electrolytes is still unclear and requires more research; however, these theories will be essential for the design of new electrolyte membranes with high σ.…”

Section: Spes For Li‐based Secondary Batteriesmentioning

confidence: 99%

Tough and Flexible, Super Ion‐Conductive Electrolyte Membranes for Lithium‐Based Secondary Battery Applications

Mong

Shi

Jeon

et al. 2020

Adv Funct Materials

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Recently, stringent requirements brought on by environmental regulations and safety issues are driving the development of solid electrolytes to replace conventional liquid electrolyte systems for lithium‐based secondary batteries (LiBs). However, the low Li‐ion conductivity and/or poor mechanical properties of electrolytes remain the main obstacles hindering their commercialization. Hierarchitectural and composite polymer separators (CPSs) based on electrolyte membranes have been reported as promising tools for both high ionic conductivity and mechanical stability. In light of such work, the new types of flexible electrolytes based on phase‐separated and mixed‐phase morphologies achieved via self‐assembly and the use of functional molecular composites are reviewed along with the fundamental mechanisms associated with such systems. In particular, the structure and morphology, ionic conductivity, thermal/mechanical stability, and fabrication of polymer electrolytes are introduced. Additionally, recent advancements in CPSs including methods of ensuring low interfacial resistance, the respective contributions of these critical factors to the significant functional properties of CPSs, and directions for development and essential applications in the field of CPSs for LiBs are presented. Based on previous works, the perspectives put forth will aid in the design of advanced electrolytes for practical Li secondary batteries in the near future.

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“…[ 49–51 ] Besides, according to computational and experimental studies, SSEs with high t Li + s would benefit LMBs, help stabilize the electrodeposition process, and reduce concentration gradients. [ 52,53 ] Therefore, with cationic transference numbers close to unity combined with their intrinsic flexibility and processability, SICPEs may be an ideal SSE candidate for LMBs, achieving next‐generation energy storage devices with high‐energy density, improved safety, and prolonged lifetime. [ 54,55 ]…”

Section: Introductionmentioning

confidence: 99%

Single‐Ion Conducting Polymer Electrolytes for Solid‐State Lithium–Metal Batteries: Design, Performance, and Challenges

Zhu

Zhang

Zhao

et al. 2021

Advanced Energy Materials

233

230

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Realizing solid‐state lithium batteries with higher energy density and enhanced safety compared to the conventional liquid lithium‐ion batteries is one of the primary research and development goals set for next‐generation batteries in this decade. In this regard, polymer electrolytes have been widely researched as solid electrolytes due to their excellent processability, flexibility, and low weight. With high cationic transference numbers (tLi+ close to 1), single‐ion conducting polymer electrolytes (SICPEs) have tremendous advantages compared to polymer electrolyte systems (tLi+ < 0.4) because of their potential to reduce the buildup of ion concentration gradients and suppress growth of lithium dendrites. The current review covers the fundamentals of SICPEs, including anionic unit synthesis, polymer structure design, and film fabrication, along with simulation and experimental results in solid‐state lithium–metal battery applications. A perspective on current challenges, possible solutions, and potential research directions of SICPEs is also discussed to provide the research community with the critical technical aspects that may advance SICPEs as solid electrolytes in next‐generation energy storage systems.

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Single Lithium-Ion Conducting Solid Polymer Electrolyte with Superior Electrochemical Stability and Interfacial Compatibility for Solid-State Lithium Metal Batteries

Cited by 99 publications

References 56 publications

Polymer‐Based Solid Electrolytes: Material Selection, Design, and Application

Polymer‐Based Solid Electrolytes: Material Selection, Design, and Application

Tough and Flexible, Super Ion‐Conductive Electrolyte Membranes for Lithium‐Based Secondary Battery Applications

Single‐Ion Conducting Polymer Electrolytes for Solid‐State Lithium–Metal Batteries: Design, Performance, and Challenges

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