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 Development of the PEO Based Solid Polymer Electrolytes for All-Solid State Lithium Ion Batteries

Polymers ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1237 ◽  
Author(s):  
Yu Jiang ◽  
Xuemin Yan ◽  
Zhaofei Ma ◽  
Ping Mei ◽  
Wei Xiao ◽  
...  
Keyword(s):  
Solid State ◽  
Lithium Ion Batteries ◽  
Polymer Electrolytes ◽  
High Performance ◽  
Lithium Salt ◽  
Rapid Development ◽  
Lithium Ion ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Potential Candidate

Solid polymer electrolytes (SPEs) have attracted considerable attention due to the rapid development of the need for more safety and powerful lithium ion batteries. The prime requirements of solid polymer electrolytes are high ion conductivity, low glass transition temperature, excellent solubility to the conductive lithium salt, and good interface stability against Li anode, which makes PEO and its derivatives potential candidate polymer matrixes. This review mainly encompasses on the synthetic development of PEO-based SPEs (PSPEs), and the potential application of the resulting PSPEs for high performance, all-solid-state lithium ion batteries.

scholarly journals Contribution Succinonitrile additive for Performa LiTFSi Solid Polymer Electrolytes for Li-Ion Battery

2020 ◽  
Vol 20 (2) ◽  
Author(s):  
Qolby Sabrina ◽  
Titik Lestariningsih ◽  
Christin Rina Ratri ◽  
Achmad Subhan
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Room Temperature ◽  
Lithium Salt ◽  
Ionic Conduction ◽  
Lithium Ion ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Half Cell ◽  
Li Ion

Solid polymer electrolyte (SPE) appropriate to solve packaging leakage and expansion volume in lithium-ion battery systems. Evaluation of electrochemical performance of SPE consisted of mixture lithium salt, solid plasticizer, and polymer precursor with different ratio. Impedance spectroscopy was used to investigate ionic conduction and dielectric response lithium bis(trifluoromethane)sulfony imide (LiTFSI) salt, and additive succinonitrile (SCN) plasticizer. The result showing enhanced high ionic conductivity. In half-cell configurations, wide electrochemical stability window of the SPE has been tested. Have stability window at room temperature, indicating great potential of SPE for application in lithium ion batteries. Additive SCN contribute to forming pores that make it easier for the li ion to move from the anode to the cathode and vice versa for better perform SPE. Pore of SPE has been charaterization with FE-SEM. Additive 5% w.t SCN shows the best ionic conductivity with 4.2 volt wide stability window and pretty much invisible pores.

Probing the Fast Lithium-Ion Transport in Small-Molecule Solid Polymer Electrolytes by Solid-State NMR

2020 ◽  
Vol 53 (22) ◽  
pp. 10078-10085
Author(s):  
Xiaobin Fu ◽  
Yiyang Liu ◽  
Wei Wang ◽  
Ling Han ◽  
Jing Yang ◽  
...  
Keyword(s):  
Solid State ◽  
Ion Transport ◽  
Small Molecule ◽  
Polymer Electrolytes ◽  
Solid State Nmr ◽  
Lithium Ion ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer

Polymer-in-salt solid electrolytes for lithium-ion batteries

2019 ◽  
Vol 12 (06) ◽  
pp. 1930006 ◽  
Author(s):  
Chengjun Yi ◽  
Wenyi Liu ◽  
Linpo Li ◽  
Haoyang Dong ◽  
Jinping Liu
Keyword(s):  
Ionic Conductivity ◽  
Lithium Ion Batteries ◽  
Smart Grids ◽  
Solid Electrolytes ◽  
Room Temperature ◽  
Lithium Salt ◽  
Lithium Ion ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Polymer Lithium Ion Batteries

Solid-state polymer lithium-ion batteries with better safety and higher energy density are one of the most promising batteries, which are expected to power future electric vehicles and smart grids. However, the low ionic conductivity at room temperature of solid polymer electrolytes (SPEs) decelerates the entry of such batteries into the market. Creating polymer-in-salt solid electrolytes (PISSEs) where the lithium salt contents exceed 50[Formula: see text]wt.% is a viable technology to enhance ionic conductivity at room temperature of SPEs, which is also suitable for scalable production. In this review, we first clarify the structure and ionic conductivity mechanism of PISSEs by analyzing the interactions between lithium salt and polymer matrix. Then, the recent advances on polyacrylonitrile (PAN)-based PISSEs and polycarbonate derivative-based PISSEs will be reviewed. Finally, we propose possible directions and opportunities to accelerate the commercializing of PISSEs for solid polymer Li-ion batteries.

Solid Polymer Electrolytes Based on Functionalized Tannic Acids from Natural Resources for All-Solid-State Lithium-Ion Batteries

ChemSusChem ◽  
2015 ◽  
Vol 8 (24) ◽  
pp. 4133-4138 ◽  
Author(s):  
Jimin Shim ◽  
Ki Yoon Bae ◽  
Hee Joong Kim ◽  
Jin Hong Lee ◽  
Dong-Gyun Kim ◽  
...  
Keyword(s):  
Solid State ◽  
Natural Resources ◽  
Lithium Ion Batteries ◽  
Polymer Electrolytes ◽  
Lithium Ion ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer

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.

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