In-situ construction of dual-physical-network within ionic liquid crystals in photoelectrochemical devices for enhancing mechanical strength and charge transport as efficient solid-state electrolytes

Zhou, Jiwen; Li, Xueyong; Wang, Caihong; Tian, Wen; Ji, Junyi; Wu, Yong; Tan, Shuai

doi:10.1016/j.ces.2021.117239

Cited by 7 publications

(3 citation statements)

References 41 publications

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“…Thermosetting gel electrolytes are prepared by soaking the synthesized copolymer in liquid electrolyte followed by thermo- [101][102][103][104] or photopolymerization [105][106][107] in situ. Table S1 in Supplementary Materials summarizes the latest achievements of thermosetting polymer electrolytes use in DSSCs.…”

Section: Thermosetting Polymer Electrolytesmentioning

confidence: 99%

Printability of (Quasi-)Solid Polysiloxane Electrolytes for Online Dye-Sensitized Solar Cell Fabrication

et al. 2023

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Dye-sensitized solar cells (DSSCs) are a very promising solution as remote sustainable low power sources for portable electronics and Internet of Things (IoT) applications due to their room-temperature and low-cost fabrication, as well as their high efficiency under artificial light. In addition, new achievements in developing semitransparent devices are driving interest in their implementation in the building sector. However, the main obstacle towards the large-scale exploitation of DSSCs mainly concerns their limited long-term stability triggered by the use of liquid electrolytes. Moreover, the device processing generally involves using a thick adhesive separator layer and vacuum filling or injection of the liquid polymer electrolyte between the two electrodes, a method that is difficult to scale up. This review summarizes the advances made in the design of alternative (quasi-)solid polymer electrolytes, with a focus on polysiloxane-based poly(ionic liquid)s. Their behavior in full DSSCs is presented and compared in terms of power generation maximization, advantages and shortcomings of the different device assembly strategies, as well as polymer electrolyte-related processing limitations. Finally, a fair part of the manuscript is allocated to the assessment of liquid and gel polymer electrolyte printability, particularly focusing on polysiloxane-based electrolytes. Spray, blade (slot-dye), screen and inkjet printing technologies are envisaged considering the polymer electrolyte thermophysical and rheological properties, as well as DSSC processing and operating conditions.

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Section: Thermosetting Polymer Electrolytesmentioning

confidence: 99%

Printability of (Quasi-)Solid Polysiloxane Electrolytes for Online Dye-Sensitized Solar Cell Fabrication

et al. 2023

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“…168 An ionic conductivity of 2.9 × 10 −3 S/cm at room temperature leads to a much higher power conversion efficiency (PCE = 6.82%) than that of a P(VDF-HFP) nanofiber (6.35%). 169 Zhou et al fabricated solid-state electrolytes by constructing PEO and polymerized ionic liquid dual networks within smectic ionic LCs, which can operate steadily at 80 °C and present longterm stable performance for 2000 h. 170 Besides their applications as dielectric capacitors or electrolytes, LC/ polymer composites are advantageous for thermoelectric devices. Said et al fabricated a PVA, potassium iodide, and 5CB composite film, and the 5CB-induced electron carriers led to the highest ZT of 8.2 × 10 8 .…”

mentioning

confidence: 99%

“…Recently, the demand for high-performance materials for energy storage has been driven by the increase of high-power applications such as electric vehicles, aircraft, and pulsed power systems. Along with their excellent dielectric, thermal conductive, and ionic conductive properties, their light weight, scalability, and mechanical flexibility are also features; thus, LC/polymer composites show great potential in energy-storage-related applications such as dielectric capacitors (Figure a), − dye-sensitized solar cells (DSSCs, Figure b), − thermoelectric devices (Figure c), , all-organic soft-solid composite electrolytes (Figure d) for, e.g., lithium-ion and sodium-ion batteries, and electro-active devices.…”

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confidence: 99%

Advancements and Applications of Liquid Crystal/Polymer Composite Films

Zhou,

Liu,

Miao

et al. 2023

ACS Materials Lett.

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Lyotropic Lamellar Nanostructures Enabled High‐Voltage Windows, Efficient Charge Transport, and Thermally Safe Solid‐State Electrolytes for Lithium‐Ion Batteries

Ruan,

Lu,

Meng

et al. 2023

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Developing electrolytes combining solid‐like instinct stability and liquid‐like conducting performance will be satisfactory for efficient and durable Li‐ion batteries. Herein lamellar lyotropic liquid crystals (LLCs) demonstrate high‐voltage windows, efficient charge transport, and inherent thermal safety as solid‐state electrolytes in lithium‐ion batteries. Lamellar LLCs are simply prepared by nanosegregation of [C16Mim][BF4] and LiBF4/Propylene carbonate (PC) liquid solutions, which induce lamellar assembly of the liquids as dynamic conducting pathways. Broadened liquid conducting pathways will boost the conducting performance of the LLC electrolytes. The lyotropic lamellar nanostructures enable liquid‐like ion conductivity of the LLC electrolytes at ambient temperatures, as well as provide solid‐like stability for the electrolytes to resist high voltage and flammability overwhelming to LiBF4/PC liquid electrolytes. Despite minor consumption of PC solvents (34.5 wt.%), the lamellar electrolytes show energy conversion efficiency comparable to the liquid electrolytes (PC wt. 92.8%) in Li/LiFePO4 batteries under ambient temperatures even at a 2 C current density, and exhibit attractively robust stability after 200th cyclic charge/discharge even under 60 °C. The work demonstrates LLC electrolytes have great potential to supersede traditional liquid electrolytes for efficient and durable Lithium‐ion (Li‐ion) batteries.

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In-situ construction of dual-physical-network within ionic liquid crystals in photoelectrochemical devices for enhancing mechanical strength and charge transport as efficient solid-state electrolytes

Cited by 7 publications

References 41 publications

Printability of (Quasi-)Solid Polysiloxane Electrolytes for Online Dye-Sensitized Solar Cell Fabrication

Printability of (Quasi-)Solid Polysiloxane Electrolytes for Online Dye-Sensitized Solar Cell Fabrication

Advancements and Applications of Liquid Crystal/Polymer Composite Films

Lyotropic Lamellar Nanostructures Enabled High‐Voltage Windows, Efficient Charge Transport, and Thermally Safe Solid‐State Electrolytes for Lithium‐Ion Batteries

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