scholarly journals Comprehensive Review of Polymer Architecture for All-Solid-State Lithium Rechargeable Batteries

Materials ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2488 ◽  
Author(s):  
Xuewei Zhang ◽  
Jean-Christophe Daigle ◽  
Karim Zaghib
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
High Energy ◽  
Rechargeable Batteries ◽  
Solid Polymer Electrolytes ◽  
Polymer Materials ◽  
High Energy Density ◽  
Solid Polymer ◽  
Mechanical Resistance ◽  
Polymer Architecture

Solid-state batteries are an emerging option for next-generation traction batteries because they are safe and have a high energy density. Accordingly, in polymer research, one of the main goals is to achieve solid polymer electrolytes (SPEs) that could be facilely fabricated into any preferred size of thin films with high ionic conductivity as well as favorable mechanical properties. In particular, in the past two decades, many polymer materials of various structures have been applied to improve the performance of SPEs. In this review, the influences of polymer architecture on the physical and electrochemical properties of an SPE in lithium solid polymer batteries are systematically summarized. The discussion mainly focuses on four principal categories: linear, comb-like, hyper-branched, and crosslinked polymers, which have been widely reported in recent investigations as capable of optimizing the balance between mechanical resistance, ionic conductivity, and electrochemical stability. This paper presents new insights into the design and exploration of novel high-performance SPEs for lithium solid polymer batteries.

scholarly journals Ultra-stable all-solid-state sodium-metal batteries enabled by perfluoropolyether-based electrolytes

2021 ◽  
Author(s):  
Xiaoen WANG ◽  
Cheng Zhang ◽  
Michal Sawczyk ◽  
Qinghong Yuan ◽  
Fangfang Chen ◽  
...  
Keyword(s):  
Solid State ◽  
Block Copolymer ◽  
Elevated Temperatures ◽  
High Current Density ◽  
Low Cost ◽  
High Capacity ◽  
High Energy ◽  
Rechargeable Batteries ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer

Abstract Rechargeable batteries paired with sodium (Na)-metal anodes are considered as one of the most promising high energy and low-cost energy storage systems. However, the use of highly reactive Na metal and the formation of Na dendrites during battery operation have caused significant safety concerns, especially when highly flammable liquid electrolytes are used. Herein, we design and develop a solvent-free solid polymer electrolytes (SPEs) based on a perfluoropolyether (PFPE) terminated polyethylene glycol (PEG)-based block copolymer for safe and stable all-solid-state Na-metal batteries. Compared with traditional poly(ethylene oxide) (PEO) or PEG SPEs, our results suggest that block copolymer design allows for the formation of self-assembled microstructures leading to high storage modulus at elevated temperatures with the PEG domains providing transport channels even at high salt concentration (EO/Na+ = 8:2). Moreover, it is demonstrated that the incorporation of PFPE segments enhances the Na+ transference number of the electrolyte to 0.46 at 80 oC. Finally, the proposed SPE exhibits highly stable symmetric cell cycling performance with high current density (0.5 mA cm-2 and 1.0 mAh cm-2, up to 1300 hours). The assembled all-solid-state Na-metal batteries with Na3V2(PO4)3 cathode demonstrate outstanding rate performance, high capacity retention and long-term charge/discharge stability (CE = 99.91%) after more than 900 cycles.

scholarly journals Ultra-stable all-solid-state sodium-metal batteries enabled by perfluoropolyether-based electrolytes

2021 ◽  
Author(s):  
Xiaoen WANG ◽  
Cheng Zhang ◽  
Michal Sawczyk ◽  
Qinghong Yuan ◽  
Fangfang Chen ◽  
...  
Keyword(s):  
Solid State ◽  
Block Copolymer ◽  
Elevated Temperatures ◽  
High Current Density ◽  
Low Cost ◽  
High Capacity ◽  
High Energy ◽  
Rechargeable Batteries ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer

Abstract Rechargeable batteries paired with sodium (Na)-metal anodes are considered as one of the most promising high energy and low-cost energy storage systems. However, the use of highly reactive Na metal and the formation of Na dendrites during battery operation have caused significant safety concerns, especially when highly flammable liquid electrolytes are used. Herein, we design and develop a solvent-free solid polymer electrolytes (SPEs) based on a perfluoropolyether (PFPE) terminated polyethylene glycol (PEG)-based block copolymer for safe and stable all-solid-state Na-metal batteries. Compared with traditional poly(ethylene oxide) (PEO) or PEG SPEs, our results suggest that block copolymer design allows for the formation of self-assembled microstructures leading to high storage modulus at elevated temperatures with the PEG domains providing transport channels even at high salt concentration (EO/Na+ = 8:2). Moreover, it is demonstrated that the incorporation of PFPE segments enhances the Na+ transference number of the electrolyte to 0.46 at 80 oC. Finally, the proposed SPE exhibits highly stable symmetric cell cycling performance with high current density (0.5 mA cm-2 and 1.0 mAh cm-2, up to 1300 hours). The assembled all-solid-state Na-metal batteries with Na3V2(PO4)3 cathode demonstrate outstanding rate performance, high capacity retention and long-term charge/discharge stability (CE = 99.91%) after more than 900 cycles.

scholarly journals Expand the effective carriers in solid polymer electrolytes via anion-hosting cathode

2021 ◽  
Author(s):  
Zongjie Sun ◽  
Kai Xi ◽  
Jing Chen ◽  
Amor Abdelkader ◽  
Mengyang Li ◽  
...  
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Integrated Approach ◽  
Electrode Reaction ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Ion Conductance ◽  
Complex Design ◽  
Solid State Batteries

Abstract The non-reactive anion migration deteriorates the limited ionic conductivity of the solid polymer electrolytes (SPEs) and accelerates solid-state batteries failure. Here, we introduce an integrated approach in which polyvinyl ferrocene (PVF) cathode encourage anions and Li+ to act as effective carriers simultaneously. The concentration polarization and poor rate performance, caused by insufficient effective carriers, were addressed by the participation of anions in electrode reaction. Specifically, the PVF|Li battery matched with unmodified SPE (PEO-LiTFSI) showed 107 mAh g− 1 initial capacity at 100 µA cm− 2 and maintained 70% retention for more than 2800 cycles at 300 µA cm− 2 and 60°C. Moreover, the slight capacity decrease at 1000 µA cm− 2 and the successful batteries operation at minimal ionic conductivity (8.13×10− 6 S cm− 1) show that the current carrying capacity of SPEs was greatly improved without complex design. This strategy weakens the strict requirements for ion conductance and interface engineering of SPEs, and provides an efficient scenario for constructing advanced polymer-based all-solid-state batteries.

Formation of Stable Interphase of Polymer-in-Salt Electrolyte in All-Solid-State Lithium Batteries

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Hongcai Gao ◽  
Nicholas S. Grundish ◽  
Yongjie Zhao ◽  
Aijun Zhou ◽  
John B. Goodenough
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Lithium Batteries ◽  
Polymer Electrolytes ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Lithium Metal ◽  
Practical Utilization ◽  
Metal Anode ◽  
Lithium Metal Anode

The integration of solid-polymer electrolytes into all-solid-state lithium batteries is highly desirable to overcome the limitations of current battery configurations that have a low energy density and severe safety concerns. Polyacrylonitrile is an appealing matrix for solid-polymer electrolytes; however, the practical utilization of such polymer electrolytes in all-solid-state cells is impeded by inferior ionic conductivity and instability against a lithium-metal anode. In this work, we show that a polymer-in-salt electrolyte based on polyacrylonitrile with a lithium salt as the major component exhibits a wide electrochemically stable window, a high ionic conductivity, and an increased lithium-ion transference number. The growth of dendrites from the lithium-metal anode was suppressed effectively by the polymer-in-salt electrolyte to increase the safety features of the batteries. In addition, we found that a stable interphase was formed between the lithium-metal anode and the polymer-in-salt electrolyte to restrain the uncontrolled parasitic reactions, and we demonstrated an all-solid-state battery configuration with a LiFePO4 cathode and the polymer-in-salt electrolyte, which exhibited a superior cycling stability and rate capability.

Intermolecular Chemistry in Solid Polymer Electrolytes for High‐Energy‐Density Lithium Batteries

2019 ◽  
Vol 31 (50) ◽  
pp. 1902029 ◽  
Author(s):  
Qian Zhou ◽  
Jun Ma ◽  
Shanmu Dong ◽  
Xianfeng Li ◽  
Guanglei Cui
Keyword(s):  
Energy Density ◽  
Lithium Batteries ◽  
Polymer Electrolytes ◽  
High Energy ◽  
Solid Polymer Electrolytes ◽  
High Energy Density ◽  
Solid Polymer

scholarly journals PEO based polymer-ceramic hybrid solid electrolytes: a review

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Jingnan Feng ◽  
Li Wang ◽  
Yijun Chen ◽  
Peiyu Wang ◽  
Hanrui Zhang ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Ionic Conduction ◽  
Lithium Ion ◽  
High Energy ◽  
Solid Polymer Electrolytes ◽  
High Ionic Conductivity ◽  
Solid Polymer ◽  
Impact Factors ◽  
Preparation Methods ◽  
Long Cycle Life

AbstractCompared with traditional lead-acid batteries, nickel–cadmium batteries and nickel-hydrogen batteries, lithium-ion batteries (LIBs) are much more environmentally friendly and much higher energy density. Besides, LIBs own the characteristics of no memory effect, high charging and discharging rate, long cycle life and high energy conversion rate. Therefore, LIBs have been widely considered as the most promising power source for mobile devices. Commonly used LIBs contain carbonate based liquid electrolytes. Such electrolytes own high ionic conductivity and excellent wetting ability. However, the use of highly flammable and volatile organic solvents in them may lead to problems like leakage, thermo runaway and parasitic interface reactions, which limit their application. Solid polymer electrolytes (SPEs) can solve these problems, while they also bring new challenges such as poor interfacial contact with electrodes and low ionic conductivity at room temperature. Many approaches have been tried to solve these problems. This article is divided into three parts to introduce polyethylene oxide (PEO) based polymer-ceramic hybrid solid electrolyte, which is one of the most efficient way to improve the performance of SPEs. The first part focuses on polymer-lithium salt (LiX) matrices, including their ionic conduction mechanism and impact factors for their ionic conductivity. In the second part, the influence of both active and passive ceramic fillers on SPEs are reviewed. In the third part, composite SPEs’ preparation methods, including solvent casting and thermocompression, are introduced and compared. Finally, we propose five key points on how to make composite SPEs with high ionic conductivity for reference.

scholarly journals Review of Multivalent Metal Ion Transport in Inorganic and Solid Polymer Electrolytes

Batteries ◽  
2020 ◽  
Vol 7 (1) ◽  
pp. 3
Author(s):  
Lauren F. O’Donnell ◽  
Steven G. Greenbaum
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Alternative Energy ◽  
High Energy ◽  
High Energy Density ◽  
Solid Polymer ◽  
Side Reactions ◽  
Solid State Batteries ◽  
All Solid State Batteries ◽  
Multivalent Metal

The lithium ion battery, with its high energy density and low reduction potential, continues to enchant researchers and dominate the landscape of energy storage systems development. However, the demands of technology in modern society have begun to reveal limitations of the lithium energy revolution. A combination of safety concerns, strained natural resources and geopolitics have inspired the search for alternative energy storage and delivery platforms. Traditional liquid electrolytes prove precarious in large scale schemes due to the propensity for leakage, the potential for side reactions and their corrosive nature. Alternative electrolytic materials in the form of solid inorganic ion conductors and solid polymer matrices offer new possibilities for all solid state batteries. In addition to the engineering of novel electrolyte materials, there is the opportunity to employ post-lithium chemistries. Utility of multivalent cation (Ca2+, Mg2+, Zn2+ and Al3+) transport promises a reduction in cost and increase in safety. In this review, we examine the current research focused on developing solid electrolytes using multivalent metal cation charge carriers and the outlook for their application in all solid state batteries.

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