scholarly journals Solid Polymer Electrolytes with Flexible Framework of SiO2 Nanofibers for Highly Safe Solid Lithium Batteries

Polymers ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1324 ◽  
Author(s):  
Jin Cui ◽  
Zehao Zhou ◽  
Mengyang Jia ◽  
Xin Chen ◽  
Chuan Shi ◽  
...  
Keyword(s):  
Lithium Batteries ◽  
Elevated Temperatures ◽  
Specific Capacity ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Total Conductivity ◽  
Composite Electrolytes ◽  
Capacity Degradation

Composite electrolytes consisting of polymers and three-dimensional (3D) fillers are considered to be promising electrolytes for solid lithium batteries owing to their virtues of continuous lithium-ion pathways and good mechanical properties. In the present study, an electrolyte with polyethylene oxide–lithium (bis trifluoromethyl) sulfate–succinonitrile (PLS) and frameworks of three-dimensional SiO2 nanofibers (3D SiO2 NFs) was prepared. Taking advantage of the highly conductive interfaces between 3D SiO2 NFs and PLS, the total conductivity of the electrolyte at 30 °C was approximately 9.32 × 10−5 S cm−1. With a thickness of 27 μm and a tensile strength of 7.4 MPa, the electrolyte achieved an area specific resistance of 29.0 Ω cm2. Moreover, such a 3D configuration could homogenize the electrical field, which was beneficial for suppressing dendrite growth. Consequently, Li/LiFePO4 cells assembled with PLS and 3D SiO2 NFs (PLS/3D SiO2 NFs), which delivered an original specific capacity of 167.9 mAh g−1, only suffered 3.28% capacity degradation after 100 cycles. In particular, these cells automatically shut down when PLS was decomposed above 400 °C, and the electrodes were separated by the solid framework of 3D SiO2 NFs. Therefore, the solid lithium batteries based on composite electrolytes reported here offer high safety at elevated temperatures.

scholarly journals Modeling and Simulation in Capacity Degradation and Control of All-Solid-State Lithium Battery Based on Time-Aging Polymer Electrolyte

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1206
Author(s):  
Xuansen Fang ◽  
Yaolong He ◽  
Xiaomin Fan ◽  
Dan Zhang ◽  
Hongjiu Hu
Keyword(s):  
Solid State ◽  
Lithium Battery ◽  
Lithium Salt ◽  
Operating Temperature ◽  
Discharge Rate ◽  
Salt Content ◽  
Lithium Ion ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Capacity Degradation

The prediction of electrochemical performance is the basis for long-term service of all-solid-state-battery (ASSB) regarding the time-aging of solid polymer electrolytes. To get insight into the influence mechanism of electrolyte aging on cell fading, we have established a continuum model for quantitatively analyzing the capacity evolution of the lithium battery during the time-aging process. The simulations have unveiled the phenomenon of electrolyte-aging-induced capacity degradation. The effects of discharge rate, operating temperature, and lithium-salt concentration in the electrolyte, as well as the electrolyte thickness, have also been explored in detail. The results have shown that capacity loss of ASSB is controlled by the decrease in the contact area of the electrolyte/electrode interface at the initial aging stage and is subsequently dominated by the mobilities of lithium-ion across the aging electrolyte. Moreover, reducing the discharge rate or increasing the operating temperature can weaken this cell deterioration. Besides, the thinner electrolyte film with acceptable lithium salt content benefits the durability of the ASSB. It has also been found that the negative effect of the aging electrolytes can be relieved if the electrolyte conductivity is kept being above a critical value under the storage and using conditions.

scholarly journals Recent Advances on Materials for Lithium-Ion Batteries

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3145
Author(s):  
João C. Barbosa ◽  
Renato Gonçalves ◽  
Carlos M. Costa ◽  
Senentxu Lanceros-Mendez
Keyword(s):  
Lithium Ion Batteries ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Storage System ◽  
Strong Dependence ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Solid Polymer Electrolytes ◽  
Advanced Materials ◽  
Solid Polymer

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.

Single lithium-ion conducting solid polymer electrolytes: advances and perspectives

2017 ◽  
Vol 46 (3) ◽  
pp. 797-815 ◽  
Author(s):  
Heng Zhang ◽  
Chunmei Li ◽  
Michal Piszcz ◽  
Estibaliz Coya ◽  
Teofilo Rojo ◽  
...  
Keyword(s):  
Growth Rate ◽  
Lithium Batteries ◽  
Polymer Electrolytes ◽  
Detrimental Effect ◽  
Lithium Ion ◽  
Transference Number ◽  
Dendrite Growth ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Ion Conducting

Single lithium-ion conducting solid polymer electrolytes (SLIC-SPEs), with a high lithium-ion transference number, the absence of the detrimental effect of anion polarization, and low dendrite growth rate, could be an excellent choice of safe electrolyte materials for lithium batteries in the future.

Ion transport in polycarbonate based solid polymer electrolytes: experimental and computational investigations

2016 ◽  
Vol 18 (14) ◽  
pp. 9504-9513 ◽  
Author(s):  
Bing Sun ◽  
Jonas Mindemark ◽  
Evgeny V. Morozov ◽  
Luciano T. Costa ◽  
Martin Bergman ◽  
...  
Keyword(s):  
Solid State ◽  
Ion Transport ◽  
Lithium Batteries ◽  
Polymer Electrolytes ◽  
Elevated Temperatures ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Alternative Host ◽  
Host Materials

Among the alternative host materials for solid polymer electrolytes (SPEs), polycarbonates have recently shown promising functionality in all-solid-state lithium batteries from ambient to elevated temperatures.

Siloxane Diacrylate-based All-Solid Polymer Electrolytes for Lithium Batteries

2015 ◽  
Vol 2 (1) ◽  
pp. 23-27
Author(s):  
Jijeesh Nair ◽  
◽  
Matteo Destro ◽  
Claudio Gerbaldi ◽  
Federico Bella
Keyword(s):  
Lithium Batteries ◽  
Polymer Electrolytes ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer

scholarly journals A Critical Review for an Accurate Electrochemical Stability Window Measurement of Solid Polymer and Composite Electrolytes

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3840
Author(s):  
Adrien Méry ◽  
Steeve Rousselot ◽  
David Lepage ◽  
Mickaël Dollé
Keyword(s):  
Ionic Conductivity ◽  
Energy Density ◽  
High Performance ◽  
Mechanical Stability ◽  
Electrochemical Stability ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Composite Electrolytes ◽  
Battery System ◽  
Electrochemical Stability Window

All-solid-state lithium batteries (ASSLB) are very promising for the future development of next generation lithium battery systems due to their increased energy density and improved safety. ASSLB employing Solid Polymer Electrolytes (SPE) and Solid Composite Electrolytes (SCE) in particular have attracted significant attention. Among the several expected requirements for a battery system (high ionic conductivity, safety, mechanical stability), increasing the energy density and the cycle life relies on the electrochemical stability window of the SPE or SCE. Most published works target the importance of ionic conductivity (undoubtedly a crucial parameter) and often identify the Electrochemical Stability Window (ESW) of the electrolyte as a secondary parameter. In this review, we first present a summary of recent publications on SPE and SCE with a particular focus on the analysis of their electrochemical stability. The goal of the second part is to propose a review of optimized and improved electrochemical methods, leading to a better understanding and a better evaluation of the ESW of the SPE and the SCE which is, once again, a critical parameter for high stability and high performance ASSLB applications.

scholarly journals Biocompatible and biodegradable solid polymer electrolytes for high voltage and high temperature lithium batteries

RSC Advances ◽  
2017 ◽  
Vol 7 (40) ◽  
pp. 24856-24863 ◽  
Author(s):  
Yue Lin ◽  
Yun Cheng ◽  
Jie Li ◽  
Jan D. Miller ◽  
Jin Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Wheat Flour ◽  
High Voltage ◽  
Lithium Batteries ◽  
Polymer Electrolytes ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer

Wheat flour modified solid polymer electrolytes were synthesized and used in high safety and long cycling lithium batteries.

scholarly journals PEO Infiltration of Porous Garnet-Type Lithium-Conducting Solid Electrolyte Thin Films

Ceramics ◽  
2021 ◽  
Vol 4 (3) ◽  
pp. 421-436
Author(s):  
Aamir Iqbal Waidha ◽  
Vanita Vanita ◽  
Oliver Clemens
Keyword(s):  
Thin Films ◽  
Solid State ◽  
Ionic Conductivity ◽  
Electrochemical Impedance ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Interfacial Resistance ◽  
Composite Electrolytes ◽  
Ion Conducting ◽  
Polymer Infiltration

Composite electrolytes containing lithium ion conducting polymer matrix and ceramic filler are promising solid-state electrolytes for all solid-state lithium ion batteries due to their wide electrochemical stability window, high lithium ion conductivity and low electrode/electrolyte interfacial resistance. In this study, we report on the polymer infiltration of porous thin films of aluminum-doped cubic garnet fabricated via a combination of nebulized spray pyrolysis and spin coating with subsequent post annealing at 1173 K. This method offers a simple and easy route for the fabrication of a three-dimensional porous garnet network with a thickness in the range of 50 to 100 µm, which could be used as the ceramic backbone providing a continuous pathway for lithium ion transport in composite electrolytes. The porous microstructure of the fabricated thin films is confirmed via scanning electron microscopy. Ionic conductivity of the pristine films is determined via electrochemical impedance spectroscopy. We show that annealing times have a significant impact on the ionic conductivity of the films. The subsequent polymer infiltration of the porous garnet films shows a maximum ionic conductivity of 5.3 × 10−7 S cm−1 at 298 K, which is six orders of magnitude higher than the pristine porous garnet film.

scholarly journals The Effect of Different Mixed Organic Solvents on the Properties of p(OPal-MMA) Gel Electrolyte Membrane for Lithium Ion Batteries

2018 ◽  
Vol 8 (12) ◽  
pp. 2587 ◽  
Author(s):  
Lanlan Tian ◽  
Mengkun Wang ◽  
Lian Xiong ◽  
Haijun Guo ◽  
Chao Huang ◽  
...  
Keyword(s):  
Specific Capacity ◽  
Mixed Solvents ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Transference Number ◽  
Polymer Membrane ◽  
Electrochemical Performances ◽  
Electrolyte Membrane ◽  
Phase Inversion Technique ◽  
Key Factor

A solvent is a key factor during polymer membrane preparation, and it is directly related to application performance as a separator for lithium ion battery (LIB). In this study, different mixed solvents were employed to prepare polymer (p(OPal-MMA)) membranes by the phase inversion technique. The polymer membrane then absorbed liquid electrolytes to obtain gel electrolytes (GPEs). The surface morphologies and porosities of these membranes were investigated, and lithium ion transferences and electrochemical performances of these GPEs were also measured. The membrane displayed an interconnected three-dimensional framework structure with uniformly distributed pores when using DMF as a porogen. When combined with acetone as the component solvent, the prepared GPE displayed the largest lithium ion transference number (0.706), the highest porosity (42.6%) and ion conductivity (3.99 × 10−3 S/cm). Even when assembled as Li/GPE/LiFePO4 cell, it exhibited the highest initial specific capacity of 167 mAh/g and retained most capacity (162 mAh/g) after 50 cycles. The results presented here probably provide reference for choosing an appropriate mixed solvent in fabricating polymer membranes.

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