scholarly journals Stable Cycling via Absolute Intercalation in Graphite-Based Lithium-Ion Battery Incorporated by Solidified Ether-Based Polymer Electrolyte

2021 ◽  
Author(s):  
Hyunjin Kim ◽  
Do Youb Kim ◽  
Jungdon Suk ◽  
Yongku Kang ◽  
Jin Bae Lee ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Polymer Electrolyte ◽  
Lithium Ion ◽  
Flash Point ◽  
Liquid Electrolytes ◽  
Fire Accidents

Current lithium-ion batteries are vulnerable to fire accidents and explosions because liquid electrolytes have a low flash point and poor thermal stability. This intrinsic problem leads to an ever-growing interest...

scholarly journals Cathode/gel polymer electrolyte integration design based on continuous composition and preparation technique for high performance lithium ion batteries

RSC Advances ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 3854-3862
Author(s):  
Feng Yu ◽  
Lingzhu Zhao ◽  
Hongbing Zhang ◽  
Zhipeng Sun ◽  
Yuli Li ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Polymer Electrolyte ◽  
High Performance ◽  
Gel Polymer Electrolyte ◽  
Lithium Ion ◽  
Uv Curing ◽  
Preparation Technique ◽  
Curing Method

An integrated cathode-gel polymer electrolyte with continuous composition was designed by simple UV curing method for high-performance lithium ion battery.

scholarly journals Porous (PVDF-HFP/PANI/GO) ternary hybrid polymer electrolyte membranes for lithium-ion batteries

RSC Advances ◽  
2018 ◽  
Vol 8 (45) ◽  
pp. 25725-25733 ◽  
Author(s):  
A. L. Ahmad ◽  
U. R. Farooqui ◽  
N. A. Hamid
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Polymer Electrolyte ◽  
Lithium Ion ◽  
Polymer Electrolyte Membranes ◽  
Hybrid Polymer ◽  
Electrolyte Membranes

A poly(vinylidene co-hexafluoropropylene) (PVDF-HFP)/polyaniline (PANI/graphene oxide (GO) ternary PEM in lithium ion battery.

scholarly journals Thermal Effect and Mechanism Analysis of Flame-Retardant Modified Polymer Electrolyte for Lithium-Ion Battery

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1675
Author(s):  
Zhi-Hao Wu ◽  
An-Chi Huang ◽  
Yan Tang ◽  
Ya-Ping Yang ◽  
Ye-Cheng Liu ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Lithium Ion Batteries ◽  
Thermal Effect ◽  
Lithium Ion Battery ◽  
Polymer Electrolyte ◽  
Rapid Development ◽  
Lithium Ion ◽  
Mechanism Analysis ◽  
Scanning Calorimetry ◽  
Modified Polymer

In recent years, the prosperous electric vehicle industry has contributed to the rapid development of lithium-ion batteries. However, the increase in the energy density of lithium-ion batteries has also created more pressing safety concerns. The emergence of a new flame-retardant material with the additive ethoxy (pentafluoro) cyclotriphosphazene can ameliorate the performance of lithium-ion batteries while ensuring their safety. The present study proposes a new polymer composite flame-retardant electrolyte and adopts differential scanning calorimetry (DSC) and accelerating rate calorimetry to investigate its thermal effect. The study found that the heating rate is positively correlated with the onset temperature, peak temperature, and endset temperature of the endothermic peak. The flame-retardant modified polymer electrolyte for new lithium-ion batteries has better thermal stability than traditional lithium-ion battery electrolytes. Three non-isothermal methods (Kissinger; Kissinger–Akahira–Sunose; and Flynn–Wall–Ozawa) were also used to calculate the kinetic parameters based on the DSC experimental data. The apparent activation energy results of the three non-isothermal methods were averaged as 54.16 kJ/mol. The research results can provide valuable references for the selection and preparation of flame-retardant additives in lithium-ion batteries.

A solid polymer electrolyte containing a novel lithium borate salt for all-solid-state lithium-ion batteries

2020 ◽  
pp. 096739112091660
Author(s):  
Yao Xiao ◽  
Lixia Bao ◽  
Jingxin Lei
Keyword(s):  
Thermal Stability ◽  
Solid State ◽  
Ionic Conductivity ◽  
Lithium Ion Batteries ◽  
Polymer Electrolyte ◽  
Polymer Matrix ◽  
Solid Polymer Electrolyte ◽  
Lithium Ion ◽  
Solid Polymer ◽  
Lithium Borate

We prepared a solid polymer electrolyte (SPE) composed of a lithium borate salt and a polymer matrix, which can be employed for all-solid-state lithium-ion batteries. The lithium borate salt was made from lithium cations and bis (maleic acid) borate anions, and exhibits an excellent thermal stability as well as high ionic conductivity. The polymer matrix is an amorphous polymeric material having no crystalline regions, which is beneficial for the movement of lithium ions in the SPE. The polymer matrix also has good mechanical performance and thermal stability. Moreover, the SPE also has a relatively high ionic conductivity.

High thermal and electrochemical stability of PVDF-graft-PAN copolymer hybrid PEO membrane for safety reinforced lithium-ion battery

RSC Advances ◽  
2016 ◽  
Vol 6 (22) ◽  
pp. 18082-18088 ◽  
Author(s):  
Chang-Yu Hsu ◽  
Ren-Jun Liu ◽  
Chun-Han Hsu ◽  
Ping-Lin Kuo
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Polymer Electrolyte ◽  
Gel Polymer Electrolyte ◽  
Lithium Ion ◽  
Electrochemical Stability

A PVDF-graft-PAN copolymer was prepared by ozone polymerization and hybrid with PEO as a conductive gel–polymer electrolyte for lithium-ion batteries.

scholarly journals Effect of dynamic loads and vibrations on lithium-ion batteries

2021 ◽  
pp. 146134842110081
Author(s):  
Xia Hua ◽  
Alan Thomas
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Experimental Studies ◽  
Lithium Ion ◽  
Battery Pack ◽  
Dynamic Loads ◽  
Electrical Performance ◽  
Mechanical Degradation ◽  
Energy Storage Devices ◽  
Battery Cell

Lithium-ion batteries are being increasingly used as the main energy storage devices in modern mobile applications, including modern spacecrafts, satellites, and electric vehicles, in which consistent and severe vibrations exist. As the lithium-ion battery market share grows, so must our understanding of the effect of mechanical vibrations and shocks on the electrical performance and mechanical properties of such batteries. Only a few recent studies investigated the effect of vibrations on the degradation and fatigue of battery cell materials as well as the effect of vibrations on the battery pack structure. This review focused on the recent progress in determining the effect of dynamic loads and vibrations on lithium-ion batteries to advance the understanding of lithium-ion battery systems. Theoretical, computational, and experimental studies conducted in both academia and industry in the past few years are reviewed herein. Although the effect of dynamic loads and random vibrations on the mechanical behavior of battery pack structures has been investigated and the correlation between vibration and the battery cell electrical performance has been determined to support the development of more robust electrical systems, it is still necessary to clarify the mechanical degradation mechanisms that affect the electrical performance and safety of battery cells.

scholarly journals Characterization of the Compressive Load on a Lithium-Ion Battery for Electric Vehicle Application

Machines ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 71
Author(s):  
Seyed Saeed Madani ◽  
Erik Schaltz ◽  
Søren Knudsen Kær
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Electric Vehicles ◽  
Large Scale ◽  
Electrochemical Impedance ◽  
Applied Pressure ◽  
Lithium Ion ◽  
Battery Cells

Lithium-ion batteries are being implemented in different large-scale applications, including aerospace and electric vehicles. For these utilizations, it is essential to improve battery cells with a great life cycle because a battery substitute is costly. For their implementation in real applications, lithium-ion battery cells undergo extension during the course of discharging and charging. To avoid disconnection among battery pack ingredients and deformity during cycling, compacting force is exerted to battery packs in electric vehicles. This research used a mechanical design feature that can address these issues. This investigation exhibits a comprehensive description of the experimental setup that can be used for battery testing under pressure to consider lithium-ion batteries’ safety, which could be employed in electrified transportation. Besides, this investigation strives to demonstrate how exterior force affects a lithium-ion battery cell’s performance and behavior corresponding to static exterior force by monitoring the applied pressure at the dissimilar state of charge. Electrochemical impedance spectroscopy was used as the primary technique for this research. It was concluded that the profiles of the achieved spectrums from the experiments seem entirely dissimilar in comparison with the cases without external pressure. By employing electrochemical impedance spectroscopy, it was noticed that the pure ohmic resistance, which is related to ion transport resistance of the separator, could substantially result in the corresponding resistance increase.

Sign in / Sign up

Export Citation Format

Share Document