A Si-doped flexible self-supporting comb-like polyethylene glycol copolymer (Si-PEG) film as a polymer electrolyte for an all solid-state lithium-ion battery

Ji, Xiaoxiao; Zeng, Huihui; Gong, Xianjing; Tsai, Fang‐Chang; Jiang, Tao; Li, Robert K.Y.; Shi, Hengchong; Luan, Shifang; Shi, Dean

doi:10.1039/c7ta07741f

Cited by 41 publications

(21 citation statements)

References 54 publications

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“…Generally, SPEs consist exclusively of polymers and Li salts without the addition of LEs. During the last three decades, various types of polymers are used in SPEs including PEO, [184][185][186][187] poly(vinylene carbonate) (PVCA), [188] poly(ethylene carbonate) (PEC), [189] poly(trimethylene carbonate) (PTMC), [190,191] perfluoropolyether (PFPE), [192] and poly(vinylidene difluoride) (PVDF). [193] Among them, PEO is the most commonly used polymer matrix.…”

Section: Solid Polymer Electrolytesmentioning

confidence: 99%

Rechargeable Battery Electrolytes Capable of Operating over Wide Temperature Windows and Delivering High Safety

Lin

Zhou

Liu

et al. 2020

Advanced Energy Materials

105

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self-discharge rates. [1-3] LIBs permeate nearly every aspect of human life. They are widely used in portable electronics (e.g., smartphones, smart-watches, and laptops), transportation (e.g., electric and hybrid vehicles), and biomedical applications (e.g., cardiac pacemakers and cochlear implants). In light of these achievements, J.B. Goodenough, M.S. Whittingham, and A. Yoshino won the 2019 Nobel prize in chemistry. [4] Despite the considerable success of conventional LIBs, their operational regime is typically around room temperature (RT). Operating at low (<0 °C) or high (>60 °C) temperatures usually deteriorate the performance and leads to safety risks. [5] We should also note that commercial LIBs are highly hazardous as they can ignite and explode in case of an accident, overheating, and overcharging, requiring more stringent safety standards, e.g., wide temperature operability and nonflammability. For example, electric vehicles require battery systems that can deliver a stable performance while maintaining a high energy density even in extreme climates, such as cold mountainous areas, where the temperatures can be as low as −40 °C, and hot deserts, where equipment exposed to sunlight can reach temperatures exceeding 70 °C. [6] Moreover, task-specific applications call for reliable energy storage solutions at extreme temperatures, including subsurface exploration (such as for mineral, oil, and gas), aerospace engineering, safety and rescue, and sterilizable medical devices. [2] Conventional LIBs are composed of a positive electrode or cathode (e.g., LiFePO 4 (LFP), LiNi x Mn y Co z O 2 (x + y + z = 1, NMC) and LiCoO 2 (LCO)), an electrolyte (including solvents, Li salts, and additives), a separator (typically a polyolefin membrane), and a negative electrode or anode (e.g., graphite and Li 4 Ti 5 O 12 (LTO)). Generally, the electrode materials are nonflammable and thermal stable (>300 °C). While the polyolefin membrane will melt/shrink over 120 °C, the commercial separators composited with ceramic nanoparticle (e.g., SiO 2 and Al 2 O 3) have been developed to reduce thermal shrinkage when exposed to overheating. [7,8] Therefore, the major challenge of commercial LIBs at extreme operating temperatures comes to the electrolyte. Carbonates are commonly used as solvents for conventional LIB electrolytes. However, these compounds are Li-ion batteries (LIBs) are the energy storage systems of choice for portable electronics and electric vehicles. Due to the growing deployment of energy storage solutions, LIBs are increasingly required to function safely and steadily over a broad range of operational conditions. However, the conventional electrolytes used in LIBs will malfunction when the temperatures fall below zero or elevate above 60 °C. Further, conventional electrolytes are toxic and flammable, leading to severe safety risks, especially in the case of an accident or overheating. Therefore, an ever-growing body of research has been dedicated to the development of electrolytes characterized by high ionic conduct...

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Section: Solid Polymer Electrolytesmentioning

confidence: 99%

Rechargeable Battery Electrolytes Capable of Operating over Wide Temperature Windows and Delivering High Safety

Lin

Zhou

Liu

et al. 2020

Advanced Energy Materials

105

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“…This methodn ot only provides stronger interactions through chemical crosslinking and mechanical wrapping of polymer and inorganic particles, but also enables better distribution of inorganic fillers in the polymer matrix. [21] After optimization, organic-inorganic CSEs with an enhanced ionic conductivity of about 10 À4 Scm À1 at 25 8C( 1-2 orders of magnitudes higher than that of pure polymer electrolytes) is obtained. [22] Generally,i norganic ceramic fillers applied to the CSEs can be classified into two categories.…”

Section: Performance Requirements and Ion-transport Mechanisms For Ormentioning

confidence: 99%

“…[98] The Li-ion conductivityo fa no ptimal composite membrane containing 1wt% LGPS particles reaches am aximum value of 1. 21 6 Li NMR spectroscopy. [99] Tracer-exchange 6 Li NMR spectroscopy results reveal that Li ions are transported mainly through LGPS-PEOi nterfaces in the composite electrolyte (Figure 9b).…”

Section: Sulfideionic Conductormentioning

confidence: 99%

Recent Progress in Organic–Inorganic Composite Solid Electrolytes for All‐Solid‐State Lithium Batteries

Zhang

Qin

et al. 2019

Chemistry A European J

123

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Conventional lithium-ion batteries, with flammable organic liquid electrolytes, have seriouss afety problems, which greatly limit their application.A ll-solid-state batteries (ASSBs) have received extensive attention from large-scale energy-storage fields,s uch as electric vehicles (EVs) and intelligent powerg rids, due to their benefits in safety,e nergy density,a nd thermostability.A st he key component of ASSBs, solid electrolytes determine the properties of ASSBs. In past decades, various kinds of solid electrolytes, such as polymers and inorganic electrolytes, have been explored.Amongt hese candidates, organic-inorganic composite solid electrolytes (CSEs) that integrate the advantages of these two differente lectrolytes have been regarded as promising electrolytes for high-performanceA SSBs, and extensive studies have been carried out. Herein,r ecent progress in organic-inorganic CSEs is summarized in terms of the inorganic component, electrochemical performance, effects of the inorganicc eramic nanostructure, and ionic conducting mechanism. Finally,t he main challenges and perspectiveso fo rganic-inorganic CSEs are highlighted for future development.

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“…[9] However, Polyolefin separators, which are currently widely used commercially, are based on polypropylene (PP) and polyethylene (PE) obtained by dry process [10,11] or wet process, [12] although with some advantages in physical and electrochemical aspects, commercial separators are limited by the low ionic conductivity, poor compatibility with electrolytes and severe shrinkage at high temperature, [13] especially in terms of battery safety. Various materials have been investigated and utilized as functional coatings/ interlayers on separators, for instance Al 2 O 3 -coated, [14] Nafioncoated, [15] graphene oxide-coated, [16,17] carbon nanomaterialcoated, [18,19] which have a certain inhibitory effect on the shuttling effect of polysulfides. [12][13][14][15][16] A lot of methods have been employed to overcome the serious drawbacks of conventional polyolefin separators used for Lithium-sulfur battery.…”

Section: Introductionmentioning

confidence: 99%

“…One promising strategy is to modify the properties of PE or PP separator that block polysulfides migration pathway without compromising Lithium ion transportation. Various materials have been investigated and utilized as functional coatings/ interlayers on separators, for instance Al 2 O 3 -coated, [14] Nafioncoated, [15] graphene oxide-coated, [16,17] carbon nanomaterialcoated, [18,19] which have a certain inhibitory effect on the shuttling effect of polysulfides. However, the preparation process of these materials is complex and expensive to commercialize, the modified layer inevitably increases the absorption of the electrolyte and affects the energy density of the lithium-sulfur battery which weakens the advantage of lithium-sulfur battery.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Performance of Porous Polyetherimide/Al₂O₃ Separator for Enhanced Lithium‐Sulfur Batteries

et al. 2019

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As an important component of lithium-sulfur batteries, the separator has a critical role in battery safety and the corresponding electrochemical performance. In this study, a high-performance polyetherimide (PEI)/Al 2 O 3 separator was prepared through the non-solvent-induced phase separation (NIPS) technique. It was demonstrated that the existence of Al 2 O 3 affects the morphology, thermal stability, electrolyte uptake, ionic conductivity, and electrochemical properties of the PEI/Al 2 O 3 separator. The results indicate that PEI/Al 2 O 3 separators containing 5 and 6 wt % Al 2 O 3 possess high porosity, good electrolyte uptake, excellent thermal stability (thermal shrinkage ratio is only 0.78 % even at a high temperature of 200°C), and ionic conductivity of practical significance (up to 2.20 mS · cm À 1 ). Consequently, the assembled cell with the prepared PEI/Al 2 O 3 separator exhibits a better cycling performance (724.9 mA h g À 1 after 200 cycles at 0.2 C) than that with the commercial Celgard 2320 separator. Therefore, the PEI/Al 2 O 3 separator prepared by NIPS is a potential separator candidate for high-safety and high-performance dischargeable lithiumsulfur batteries.

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A Si-doped flexible self-supporting comb-like polyethylene glycol copolymer (Si-PEG) film as a polymer electrolyte for an all solid-state lithium-ion battery

Abstract: A Si-doped PEG-based crosslinked comb-like copolymer is an excellent polymer electrolyte for Li-ion batteries at low temperatures.

Cited by 41 publications

References 54 publications

Rechargeable Battery Electrolytes Capable of Operating over Wide Temperature Windows and Delivering High Safety

Rechargeable Battery Electrolytes Capable of Operating over Wide Temperature Windows and Delivering High Safety

Recent Progress in Organic–Inorganic Composite Solid Electrolytes for All‐Solid‐State Lithium Batteries

Preparation and Performance of Porous Polyetherimide/Al₂O₃ Separator for Enhanced Lithium‐Sulfur Batteries

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A Si-doped flexible self-supporting comb-like polyethylene glycol copolymer (Si-PEG) film as a polymer electrolyte for an all solid-state lithium-ion battery

Abstract: A Si-doped PEG-based crosslinked comb-like copolymer is an excellent polymer electrolyte for Li-ion batteries at low temperatures.

Cited by 41 publications

References 54 publications

Rechargeable Battery Electrolytes Capable of Operating over Wide Temperature Windows and Delivering High Safety

Rechargeable Battery Electrolytes Capable of Operating over Wide Temperature Windows and Delivering High Safety

Recent Progress in Organic–Inorganic Composite Solid Electrolytes for All‐Solid‐State Lithium Batteries

Preparation and Performance of Porous Polyetherimide/Al2O3 Separator for Enhanced Lithium‐Sulfur Batteries

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Product

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Preparation and Performance of Porous Polyetherimide/Al₂O₃ Separator for Enhanced Lithium‐Sulfur Batteries