Recent progress in all-solid-state lithium batteries: The emerging strategies for advanced electrolytes and their interfaces

Chen, Yong; Wen, Kaihua; Chen, Tianhua; Zhang, Xiaojing; Armand, Michel; Chen, Shimou

doi:10.1016/j.ensm.2020.05.019

Cited by 133 publications

(69 citation statements)

References 473 publications

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“…[ 29–31 ] Although achievements have been made, the large‐scale application of SPEs still faces numerous problems, ranging from fundamental gaps in understanding to problems related to industrial manufacturing or the design of self‐assembled electrolyte materials, such as the mechanism of Li‐ion transport and issues associated with Li‐ion transport across the interface of anodes, solid‐state electrolytes and cathodes. [ 32–34 ] Mostly, self‐ion channel formation remains contentious and has been hotly debated as it relates to the practical applications of LiBs. On the other hand, the addition of nano or microsized fillers to polymer electrolytes has proven to be another effective means of simultaneously achieving high σ and mechanical stability as well as introducing additional functions.…”

Section: Introductionmentioning

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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Section: Introductionmentioning

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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“…Compared with traditional rechargeable lithium batteries using liquid organic electrolyte, solid-state lithium batteries have become the first choice for the next-generation power and energy storage batteries due to their safety and potential high specific energy [1], are widely used in electric vehicles, consumer electronics, and other fields. The preparation methods of solid-state battery electrodes and electrolytes are mainly Radio Frequency Magnetron Sputtering Deposition (RFMSD) [2], Pulsed Laser Deposition (PLD) [3], Electron Beam Evaporation (EBE) [4], Chemical Vapor Deposition (CVD) [5], Molecular Beam Epitaxy (MBE) [6] and other methods [7].…”

Section: Introductionmentioning

confidence: 99%

Structural evolution of plasma sprayed amorphous Li4Ti5O12 electrode and ceramic/polymer composite electrolyte during electrochemical cycle of quasi-solid-state lithium battery

Liang

Zhang

et al. 2020

Preprint

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Solid-state batteries are one of the effective way to solve the safety of traditional power and energy storage batteries with flammable liquid electrolyte. This time, a quasi-solid-state lithium battery is assembled by plasma sprayed amorphous Li 4 Ti 5 O 12 (LTO) electrode and ceramic/polymer composite electrolyte with a little liquid electrolyte (10 μl/cm 2 ) to provide the outstanding electrochemical stability and better than normal interface contact. SEM, STEM, TEM and EDS were used to analyze the structure evolution and performance of plasma sprayed amorphous LTO electrode and ceramic/polymer composite electrolyte before and after electrochemical experiments. By comparing the electrochemical performance of the amorphous LTO electrode and the traditional LTO electrode, the electrochemical behavior of different electrodes is studied. The results show that plasma spraying can prepare an amorphous Li 4 Ti 5 O 12 electrode coating of about 8 μm. After 200 electrochemical cycles, the structure of the electrode evolved, and the inside of the electrode fractured and cracks expanded, because of recrystallization at the interface between the rich fluorine compounds and the amorphous LTO electrode. Similarly, the ceramic/polymer composite electrolyte has undergone structural evolution after 200 cycles test. The electrochemical cycle results show that the cycle stability, capacity retention rate, coulomb efficiency, and internal impedance of amorphous LTO electrodes are better than traditional LTO electrode. This innovative and facile quasi-solid-state strategy is aimed to promote the intrinsic safety and stability of working lithium battery, shedding light on the development of next-generation high-performance solid-state lithium batteries.

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“…Apart from the problem of SSEs are highly sensitive to moisture form H 2 S, [40] they react with Li-metal anode and oxide cathode materials, which have critically limited their practical applications. [41] nuclear magnetic resonance exchange experiments quantified the local Li-ion mobility from the long-range Li-ion motional process, which showed that the interface was the main factor limiting the performance of Li 6 PS 5 Cl and Li 6 PS 5 Cl 0.5 Br 0.5 . [39,42,43] When SSEs come into contact with oxide cathodes, interfacial reactions occur due to the high instability of sulfur in SSEs, forming by-products and consequently increasing the interfacial resistance of the cell as well as decreasing the discharge capacity after each cycle.…”

Section: Sulfide Solid Electrolytes and Current Problemsmentioning

confidence: 99%

“…However, it is important to note that this instability of SSEs is intrinsic [41,[44][45][46][47][48] and cannot be halted without the use of any thermodynamic or kinetic stabilizer. [49,50] Hence, some types of passivation coatings or doping are required, which act as thermodynamic stabilizers with negligible effect on electrochemical properties.…”

Section: Sulfide Solid Electrolytes and Current Problemsmentioning

confidence: 99%

Current Trends in Nanoscale Interfacial Electrode Engineering for Sulfide‐Based All‐Solid‐State Li‐Ion Batteries

et al. 2021

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All‐solid‐state Li‐ion batteries (ASSLBs) have been a topic of interest in the recent two decades for use in energy storage technologies. Among various types of solid electrolytes, sulfide‐based solid electrolytes (SSEs) have been regarded as the most promising electrolytes for practical ASSLBs due to their high ionic conductivity (>1 mS cm−1) and the possibility of high energy density cells (>500 Wh kg−1) using a currently available high capacity oxide cathode and a Li‐metal anode, as well as their nonflammable nature. However, SSEs are known to suffer from: 1) low electrochemical stability window; 2) parasitic interfacial reactions at oxide cathodes; 3) electrochemomechanical degradation at the interface; and 4) dendritic growth at bare Li‐metal anodes. Herein, a comprehensive review of specific strategies for high energy density ASSLBs is provided, focusing on the nanoscale interfacial engineering on oxide‐based cathode materials and Li‐metal anodes. Recent progresses in in situ‐based complex interfacial coatings, deposition techniques for synthesizing complex core–shell structures at oxide‐based cathode active materials, and lithiophilic seeding followed by dendrite protective coatings at anodes are mainly summarized. Finally, the perspectives for the development of high energy density sulfide‐based ASSLBs are highlighted.

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Recent progress in all-solid-state lithium batteries: The emerging strategies for advanced electrolytes and their interfaces

Cited by 133 publications

References 473 publications

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

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

Structural evolution of plasma sprayed amorphous Li4Ti5O12 electrode and ceramic/polymer composite electrolyte during electrochemical cycle of quasi-solid-state lithium battery

Current Trends in Nanoscale Interfacial Electrode Engineering for Sulfide‐Based All‐Solid‐State Li‐Ion Batteries

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