Inhibiting the shuttle effect using artificial membranes with high lithium-ion content for enhancing the stability of the lithium anode

2020 ◽  
Vol 8 (28) ◽  
pp. 14062-14070
Author(s):  
Dong Liang ◽  
Tengfei Bian ◽  
Qing Han ◽  
Hua Wang ◽  
Xiaosheng Song ◽  
...  
Keyword(s):  
Composite Membrane ◽  
Lithium Ion ◽  
Ion Content ◽  
Artificial Membranes ◽  
Lithium Anode ◽  
Shuttle Effect ◽  
Cell Cycling ◽  
The Stability

A composite membrane with high lithium-ion content demonstrates the capability for inhibiting the diffusion of redox chemicals from cathode to anode in the Li-metal based batteries, and then the cell cycling stabilities are improved.

Lithium-Ion Batteries: Understanding the Stability for Li-Rich Layered Oxide Li2 RuO3 Cathode (Adv. Funct. Mater. 9/2016)

2016 ◽  
Vol 26 (9) ◽  
pp. 1306-1306 ◽  
Author(s):  
Biao Li ◽  
Ruiwen Shao ◽  
Huijun Yan ◽  
Li An ◽  
Bin Zhang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Layered Oxide ◽  
The Stability

Novel melamine-based porous organic polymers: synthesis, characterizations, morphology modifications, and their applications in lithium-sulfur batteries

2021 ◽  
Author(s):  
Haiyang Liu ◽  
Jiaxing Wang ◽  
Miao SUN ◽  
Yu Wang ◽  
Runing Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Rational Design ◽  
Specific Capacity ◽  
High Capacity ◽  
Lithium Ion ◽  
Organic Polymer ◽  
Energy Storage Devices ◽  
Shuttle Effect ◽  
Physical Constraints ◽  
Lithium Sulfur

Abstract Lithium-sulfur (Li-S) batteries have been considered to be one of the most promising energy storage devices in the next generation. However, the insulating properties of sulfur and the shuttle effect of soluble lithium polysulfides (LiPSs) seriously hinder the practical application of Li-S batteries. In this paper, a novel porous organic polymer (HUT3) was prepared based on the polycondensation between melamine and 1,4-phenylene diisocyanate. The micro morphology of HUT3 was improved by in-situ growth on different mass fractions of rGO (5%, 10%, 15%), and the obtained HUT3-rGO composites were employed as sulfur carriers in Li-S batteries with promoted the sulfur loading ratio and lithium ion mobility. Attributed to the synergistic effect of the chemisorption of polar groups and the physical constraints of HUT3 structure, HUT3-rGO/S electrodes exhibits excellent capacity and cyclability performance. For instance, HUT3-10rGO/S electrode exhibits a high initial specific capacity of 950 mAh g-1 at 0.2 C and retains a high capacity of 707 mAh g-1 after 500 cycles at 1 C. This work emphasizes the importance of the rational design of the chemical structure and opens up a simple way for the development of cathode materials suitable for high-performance Li-S batteries.

scholarly journals The Use of Succinonitrile as an Electrolyte Additive for Composite-Fiber Membranes in Lithium-Ion Batteries

Membranes ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 45 ◽  
Author(s):  
Jahaziel Villarreal ◽  
Roberto Orrostieta Chavez ◽  
Sujay A. Chopade ◽  
Timothy P. Lodge ◽  
Mataz Alcoutlabi
Keyword(s):  
Ionic Liquid ◽  
Ionic Conductivity ◽  
Lithium Ion Batteries ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Composite Fiber ◽  
Galvanostatic Charge ◽  
Lithium Anode ◽  
Charge Discharge ◽  
Licoo2 Cathode

In the present work, the effect of temperature and additives on the ionic conductivity of mixed organic/ionic liquid electrolytes (MOILEs) was investigated by conducting galvanostatic charge/discharge and ionic conductivity experiments. The mixed electrolyte is based on the ionic liquid (IL) (EMI/TFSI/LiTFSI) and organic solvents EC/DMC (1:1 v/v). The effect of electrolyte type on the electrochemical performance of a LiCoO2 cathode and a SnO2/C composite anode in lithium anode (or cathode) half-cells was also investigated. The results demonstrated that the addition of 5 wt.% succinonitrile (SN) resulted in enhanced ionic conductivity of a 60% EMI-TFSI 40% EC/DMC MOILE from ~14 mS·cm−1 to ~26 mS·cm−1 at room temperature. Additionally, at a temperature of 100 °C, an increase in ionic conductivity from ~38 to ~69 mS·cm−1 was observed for the MOILE with 5 wt% SN. The improvement in the ionic conductivity is attributed to the high polarity of SN and its ability to dissolve various types of salts such as LiTFSI. The galvanostatic charge/discharge results showed that the LiCoO2 cathode with the MOILE (without SN) exhibited a 39% specific capacity loss at the 50th cycle while the LiCoO2 cathode in the MOILE with 5 wt.% SN showed a decrease in specific capacity of only 14%. The addition of 5 wt.% SN to the MOILE with a SnO2/C composite-fiber anode resulted in improved cycling performance and rate capability of the SnO2/C composite-membrane anode in lithium anode half-cells. Based on the results reported in this work, a new avenue and promising outcome for the future use of MOILEs with SN in lithium-ion batteries (LIBs) can be opened.

Superior full-cell cycling and rate performance achieved by carbon coated hollow Fe3O4 nanoellipsoids for lithium ion battery

2018 ◽  
Vol 288 ◽  
pp. 71-81 ◽  
Author(s):  
Liu-Yang Sun ◽  
Lie Yang ◽  
Jing Li ◽  
R. Lakshmi Narayan ◽  
Xiao-Hui Ning
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Rate Performance ◽  
Full Cell ◽  
Carbon Coated ◽  
Cell Cycling

Enhancing the stability of high-voltage lithium-ion battery by using sulfur-containing electrolyte additives

Ionics ◽  
2019 ◽  
Vol 25 (4) ◽  
pp. 1447-1457 ◽  
Author(s):  
Xiaoying Yu ◽  
Yamin Wang ◽  
Hao Cai ◽  
Chao Shang ◽  
Yingchun Liu ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
High Voltage ◽  
Lithium Ion ◽  
Electrolyte Additives ◽  
The Stability ◽  
Sulfur Containing

Decomposition of the fluoroethylene carbonate additive and the glue effect of lithium fluoride products for the solid electrolyte interphase: an ab initio study

2016 ◽  
Vol 18 (12) ◽  
pp. 8643-8653 ◽  
Author(s):  
Yukihiro Okuno ◽  
Keisuke Ushirogata ◽  
Keitaro Sodeyama ◽  
Yoshitaka Tateyama
Keyword(s):  
Solid Electrolyte ◽  
Lithium Ion Batteries ◽  
Electrolyte Solution ◽  
Lithium Fluoride ◽  
Solid Electrolyte Interphase ◽  
Lithium Ion ◽  
Ab Initio Study ◽  
Fluoroethylene Carbonate ◽  
The Stability ◽  
Fluoroethylene Carbonate Additive

Additives in the electrolyte solution of lithium-ion batteries (LIBs) have a large impact on the performance of the solid electrolyte interphase (SEI) that forms on the anode and is a key to the stability and durability of LIBs.

Impact of the functional group in the polyanion of single lithium-ion conducting polymer electrolytes on the stability of lithium metal electrodes

RSC Advances ◽  
2016 ◽  
Vol 6 (39) ◽  
pp. 32454-32461 ◽  
Author(s):  
Qiang Ma ◽  
Yu Xia ◽  
Wenfang Feng ◽  
Jin Nie ◽  
Yong-Sheng Hu ◽  
...  
Keyword(s):  
Polymer Electrolytes ◽  
Functional Group ◽  
Lithium Ion ◽  
Metal Electrode ◽  
Interfacial Stability ◽  
Lithium Metal ◽  
Metal Electrodes ◽  
Ion Conducting ◽  
The Stability ◽  
Ion Conducting Polymer

The functional group in the polyanion plays a key role in improving the interfacial stability of the Li metal electrode.

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