Functionalized meso/macro-porous single ion polymeric electrolyte for applications in lithium ion batteries

2014 ◽  
Vol 2 (9) ◽  
pp. 2960-2967 ◽  
Author(s):  
Rupesh Rohan ◽  
Yubao Sun ◽  
Weiwei Cai ◽  
Kapil Pareek ◽  
Yunfeng Zhang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Organic Solvents ◽  
Polymer Matrix ◽  
Lithium Salt ◽  
Lithium Ion ◽  
Polymeric Electrolyte ◽  
Lithium Ions

We report a method to significantly enhance the conductivity of lithium ions in a polymeric lithium salt membrane by introducing functionalized meso/macro-pores to accommodate a mixture of organic solvents in the polymer matrix.

Lithium Salt-Induced In Situ Living Radical Polymerizations Enable Polymer Electrolytes for Lithium-Ion Batteries

2021 ◽  
Vol 54 (2) ◽  
pp. 874-887
Author(s):  
Liping Yu ◽  
Yong Zhang ◽  
Jirong Wang ◽  
Huihui Gan ◽  
Shaoqiao Li ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Polymer Electrolytes ◽  
Lithium Salt ◽  
Lithium Ion ◽  
Living Radical Polymerizations ◽  
Radical Polymerizations

scholarly journals Aging Mechanisms of Electrode Materials in Lithium-Ion Batteries for Electric Vehicles

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Cheng Lin ◽  
Aihua Tang ◽  
Hao Mu ◽  
Wenwei Wang ◽  
Chun Wang
Keyword(s):  
Lithium Ion Batteries ◽  
Electrode Materials ◽  
Electrochemical Behaviour ◽  
Lithium Ion ◽  
Storage Conditions ◽  
Carbon Anode ◽  
Side Reactions ◽  
Metallic Oxide ◽  
Lithium Ions ◽  
Aging Mechanisms

Electrode material aging leads to a decrease in capacity and/or a rise in resistance of the whole cell and thus can dramatically affect the performance of lithium-ion batteries. Furthermore, the aging phenomena are extremely complicated to describe due to the coupling of various factors. In this review, we give an interpretation of capacity/power fading of electrode-oriented aging mechanisms under cycling and various storage conditions for metallic oxide-based cathodes and carbon-based anodes. For the cathode of lithium-ion batteries, the mechanical stress and strain resulting from the lithium ions insertion and extraction predominantly lead to structural disordering. Another important aging mechanism is the metal dissolution from the cathode and the subsequent deposition on the anode. For the anode, the main aging mechanisms are the loss of recyclable lithium ions caused by the formation and increasing growth of a solid electrolyte interphase (SEI) and the mechanical fatigue caused by the diffusion-induced stress on the carbon anode particles. Additionally, electrode aging largely depends on the electrochemical behaviour under cycling and storage conditions and results from both structural/morphological changes and side reactions aggravated by decomposition products and protic impurities in the electrolyte.

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 Simple One-Pot Synthesis of Hexagonal ZnO Nanoplates as Anode Material for Lithium-Ion Batteries

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Haipeng Li ◽  
Yaqiong Wei ◽  
Yan Zhao ◽  
Yongguang Zhang ◽  
Fuxing Yin ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Active Sites ◽  
Hydrothermal Reaction ◽  
Strain Relaxation ◽  
Lithium Ion ◽  
Lithium Ions ◽  
One Pot ◽  
Large Contact Area ◽  
Physical And Chemical ◽  
Microstructure Of The Material

Hexagonal ZnO nanoplates were synthesizedviasimple one-pot hydrothermal reaction of Zn(CH3COO)2and CO(NH2)2. XRD, SEM, and HRTEM were used to investigate the composition and microstructure of the material. Together with the facile strain relaxation during structure and volume change upon cycling, this plate-like structure of ZnO is favorable for physical and chemical interactions with lithium ions because of its large contact area with the electrolyte, providing more active sites and short diffusion distances. The resulting hexagonal ZnO nanoplates electrode exhibited good cyclability and delivered a reversible discharge capacity of 368 mAh g−1after 100 cycles at 0.1 C.

scholarly journals The influence of different Si : C ratios on the electrochemical performance of silicon/carbon layered film anodes for lithium-ion batteries

RSC Advances ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 6660-6666 ◽  
Author(s):  
Jun Wang ◽  
Shengli Li ◽  
Yi Zhao ◽  
Juan Shi ◽  
Lili Lv ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Lithium Ions ◽  
High Specific Capacity ◽  
Silicon Carbon ◽  
Silicon Based

With a high specific capacity (4200 mA h g−1), silicon based materials have become the most promising anode materials in lithium-ions batteries.

Thermal convection induced TiO2 microclews as superior electrode materials for lithium-ion batteries

2018 ◽  
Vol 6 (25) ◽  
pp. 11688-11693 ◽  
Author(s):  
Lijiang Zhao ◽  
Shitong Wang ◽  
Feng Pan ◽  
Zilong Tang ◽  
Zhongtai Zhang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Thermal Convection ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Carbon Cloth ◽  
Lithium Ions ◽  
Fast Transport

TiO2 microclew filled carbon cloth favours fast transport of lithium ions and electrons, causing high electrochemical performance.

scholarly journals New boron based salts for lithium-ion batteries using conjugated ligands

2016 ◽  
Vol 18 (24) ◽  
pp. 16274-16280 ◽  
Author(s):  
P. Jankowski ◽  
W. Wieczorek ◽  
P. Johansson
Keyword(s):  
Lithium Ion Batteries ◽  
Boron Atom ◽  
Lithium Salt ◽  
Lithium Ion ◽  
Design Concept

A new lithium salt design concept, based on anions combining a central boron atom and conjugated ligands, is presented.

scholarly journals Effect of mixed anions on the transport properties and performance of an ionic liquid-based electrolyte for lithium-ion batteries

2019 ◽  
Vol 91 (8) ◽  
pp. 1361-1381 ◽  
Author(s):  
Victor Chaudoy ◽  
Johan Jacquemin ◽  
François Tran-Van ◽  
Michaël Deschamps ◽  
Fouad Ghamouss
Keyword(s):  
Transport Properties ◽  
Lithium Ion Batteries ◽  
Salt Concentration ◽  
Lithium Salt ◽  
Nuclear Overhauser Effect ◽  
Lithium Ion ◽  
Activation Energies ◽  
The Self ◽  
Self Diffusion ◽  
Wide Range

Abstract In this work, the physical, transport and electrochemical properties of various electrolytic solutions containing the 1-propyl-1-methylpyrrolidinium bis[fluorosulfonyl]imide ([C3C1pyr][FSI]) mixed with the lithium bis[(trifluoromethyl)sulfonyl]imide (Li[TFSI]) over a wide range of compositions are reported as a function of temperature at atmospheric pressure. First, the ionicity, lithium transference number, and transport properties (viscosity and conductivity) as well as the volumetric properties (density and molar volume) were determined as a function of lithium salt concentration from 293 to 343 K. Second, the self-diffusion coefficient of each ion in solution was measured by nuclear magnetic resonance (NMR) spectroscopy with pulsed field gradients (PFG). Moreover, an analysis of the collected nuclear Overhauser effect (NOE) data along with ab initio and COSMO-RS calculations was conducted to depict intra and intermolecular neighbouring within the electrolytic mixtures. Based on this analysis, and as expected, all activation energies increase with the Li[TFSI] concentration in solution, and all activation energies were determined from the self-diffusion data for all ions. Interestingly, regardless of the composition in solution, these activation energies were similar, except for those determined for the [FSI]− anion. The activation energy of [FSI]− self-diffusion relatively decreases compared to the other ions as the lithium salt concentration increases. Furthermore, the lithium transference was strongly affected by the lithium salt concentration, reaching an optimal value and an ionicity of approximately 50 % at a molality close to 0.75 mol · kg−1. Finally, these electrolytes were used in lithium-ion batteries (i.e. Li/NMC and LTO/NMC), demonstrating a clear relationship between the electrolyte formulation, its transport parameters and battery performance.

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.

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