A highly ion-conductive three-dimensional LLZAO-PEO/LiTFSI solid electrolyte for high-performance solid-state batteries

Cai, Dongyu; Wang, Donghuang; Chen, Yongjie; Zhang, Shengzhao; Wang, Xiuli; Xia, Xinhui; Tu, J.P.

doi:10.1016/j.cej.2020.124993

Cited by 99 publications

(51 citation statements)

References 50 publications

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“… 57 Owing to the excellent thermal safety of PVDF‐HFP, the PVDF‐HFP/PFPEs/20 wt% LGPS showed good fire‐resistance in the flammability test (Figure 4(C)). 50 Tang et al 58 found that PEO‐based CPE modified with vermiculite sheets maintained its original shape after combustion in the lighter burning experiment, while the material without vermiculite sheets shrank a lot in the same test (Figure 4(D)).…”

Section: Material‐level Thermal Stability Of Sesmentioning

confidence: 93%

“…Poly(vinylidene fluoride) (PVDF) + Li 6.75 La 3 Zr 1.75 Ta 0.25 O 12 (LLZO), 46 PVDF + Li 0.35 La 0.55 TiO 3 (LLTO), 47 polyacrylonitrile + LLTO, 48 PEO + LAGP(Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 ) 39 slightly lower T dec of the systems (shown in the TG curves in relative reference without specific data). In contrast, PVDF‐ co ‐hexafluoropropylene (HFP) + LAGP, 49 PEO + LLZAO(Li 6.4 La 3 Zr 2 Al 0.2 O 12 ), 50 and PEO + LLZTO 51 showed the obvious trend. For example, Cheng et al 51 found that adding 30% LLZTO rose the decomposition temperature of PEO‐based SPE from 350 to 400°C.…”

Section: Material‐level Thermal Stability Of Sesmentioning

confidence: 99%

“…Besides, even with the same composition, different structures can also result in different thermal stabilities. The construction of a three‐dimensional framework can more effectively prevent the agglomeration of organic SE particles so that higher thermal stability can be achieved 50 . However, constructing a three‐dimensional skeleton is more complicated than the solution casting method, and prone to introduce some impurities like LiNO 3 during the process.…”

Section: Material‐level Thermal Stability Of Sesmentioning

confidence: 99%

Section: Material‐level Thermal Stability Of Sesmentioning

confidence: 99%

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Progress in thermal stability of all‐solid‐state‐Li‐ion‐batteries

Wang

et al. 2021

InfoMat

178

108

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Thermal safety is one of the major issues for lithium‐ion batteries (LIBs) used in electric vehicles. The thermal runaway mechanism and process of LIBs have been extensively studied, but the thermal problems of LIBs remain intractable due to the flammability, volatility and corrosiveness of organic liquid electrolytes. To ultimately solve the thermal problem, all‐solid‐state LIBs (ASSLIBs) are considered to be the most promising technology. However, research on the thermal stability of solid‐state electrolytes (SEs) is still in its initial stage, and the thermal safety of ASSLIBs still needs further validation. Moreover, the specified reviews summarizing the thermal stability of ASSLIBs and all types of SEs are still missing. To fill this gap, this review systematically discussed recent progress in the field of thermal properties investigation for ASSLIBs, form levels of materials and interface to the whole battery. The thermal properties of three major types of SEs, including polymer, oxide, and sulfide SEs are systematically reviewed here. This review aims to provide a comprehensive understanding of the thermal stability of SEs for the benign development of ASSLIBs and their promising application under practical operating conditions.

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Section: Material‐level Thermal Stability Of Sesmentioning

confidence: 93%

Section: Material‐level Thermal Stability Of Sesmentioning

confidence: 99%

Section: Material‐level Thermal Stability Of Sesmentioning

confidence: 99%

Section: Material‐level Thermal Stability Of Sesmentioning

confidence: 99%

See 2 more Smart Citations

Progress in thermal stability of all‐solid‐state‐Li‐ion‐batteries

Wang

et al. 2021

InfoMat

178

108

View full text Add to dashboard Cite

show abstract

“…The use of ultrasonic treatments in the PEO matrix proved to significant increase the ionic conductivity of the SPE by around 78% due to the breaking of PEO grains and reduction in the crystallinity [273]. Polymer-in-ceramic composites can also play a key role in the ionic conduction with fast Li + conduction and high lithium transference number [274]. The use of zeolites is still not much explored, but it shows promising results, particularly in the prolonged cycle life of the batteries [265].…”

Section: Solid Polymer Electrolytesmentioning

confidence: 99%

Recent Advances on Materials for Lithium-Ion Batteries

et al. 2021

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Environmental issues related to energy consumption are mainly associated with the strong dependence on fossil fuels. To solve these issues, renewable energy sources systems have been developed as well as advanced energy storage systems. Batteries are the main storage system related to mobility, and they are applied in devices such as laptops, cell phones, and electric vehicles. Lithium-ion batteries (LIBs) are the most used battery system based on their high specific capacity, long cycle life, and no memory effects. This rapidly evolving field urges for a systematic comparative compilation of the most recent developments on battery technology in order to keep up with the growing number of materials, strategies, and battery performance data, allowing the design of future developments in the field. Thus, this review focuses on the different materials recently developed for the different battery components—anode, cathode, and separator/electrolyte—in order to further improve LIB systems. Moreover, solid polymer electrolytes (SPE) for LIBs are also highlighted. Together with the study of new advanced materials, materials modification by doping or synthesis, the combination of different materials, fillers addition, size manipulation, or the use of high ionic conductor materials are also presented as effective methods to enhance the electrochemical properties of LIBs. Finally, it is also shown that the development of advanced materials is not only focused on improving efficiency but also on the application of more environmentally friendly materials.

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Highly Safe, Ultra‐Thin MOF‐Based Solid Polymer Electrolytes for Superior All‐Solid‐State Lithium‐Metal Battery Performance

Nguyen,

Duong

et al. 2024

Adv Funct Materials

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Polyethylene oxide (PEO)/lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) is among the most promising candidates for developing solid polymer electrolytes (SPEs) for all‐solid‐state lithium‐metal batteries (ASSLMBs). However, practical applications of the PEO/LiTFSI system face challenges due to its relatively low ionic conductivity and low Li+ transference number. To address these issues, a method is proposed that incorporates multiple components, including zeolitic imidazolate frameworks (ZIF‐67) as fillers and ionic liquid electrolytes (ILEs) as plasticizers, into a PEO/LiTFSI matrix. By optimizing the fabrication process, ultra‐thin membranes of the integrated electrolyte PEO/LiTFSI‐ILE‐ZIF‐67 (PLiZ) with a thickness of 32 µm are developed, achieving high ionic conductivity (1.19 × 10−4 S cm−1 at 25 °C), broad electrochemical stability (5.66 V), and high lithium‐ion mobility (0.8). As a result, the fabricated ASSLMBs exhibited excellent cycle stability at both room temperature and 60 °C, delivering an initial specific discharge capacity of 166.4 mAh g−1 and an impressive capacity retention of 83.7% after 1000 cycles at 3C under 60 °C, corresponding to a low fading rate of 0.0163% per cycle. Additionally, the designed SPEs demonstrated high safety properties, as shown by the successful cutting and folding of a working LiFePO4/PLiZ/Li pouch cell. Therefore, this study presents a comprehensively improved method for developing high‐performance ASSLMBs.

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A highly ion-conductive three-dimensional LLZAO-PEO/LiTFSI solid electrolyte for high-performance solid-state batteries

Cited by 99 publications

References 50 publications

Progress in thermal stability of all‐solid‐state‐Li‐ion‐batteries

Progress in thermal stability of all‐solid‐state‐Li‐ion‐batteries

Recent Advances on Materials for Lithium-Ion Batteries

Highly Safe, Ultra‐Thin MOF‐Based Solid Polymer Electrolytes for Superior All‐Solid‐State Lithium‐Metal Battery Performance

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