Electrochemical performance study of polyaniline and polypyrrole based flexible electrodes

2021 ◽  
pp. 1-9
Author(s):  
Jnanendra Upadhyay ◽  
Trishna Moyi Das ◽  
Rajiv Borah
Keyword(s):  
Electrochemical Performance ◽  
Performance Study ◽  
Flexible Electrodes

Textile Based Electrodes for Flexible Lithium-Ion Batteries: New updates

2021 ◽  
Vol 17 ◽  
Author(s):  
Ahmed Alahmed ◽  
Emel Ceyhun Sabır
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
High Efficiency ◽  
Carbon Materials ◽  
Lithium Ion ◽  
Production Costs ◽  
Electrode Structure ◽  
Flexible Electrodes ◽  
Practical Applications ◽  
High Production

: The electrodes are the basis for building flexible lithium-ion batteries (FLIBs), and many attempts have been made to develop flexible electrodes with high efficiency in terms of electrical conductivity, chemical and mechanical properties. Most studies showed relatively satisfactory results when testing the electrochemical properties of laboratory-produced electrodes, but most of these electrodes could not meet the expected requirements of flexible electrodes in practical applications. Quantitative production faces many problems that must be overcome, such as the gradual decline in electrochemical performance, deformation of the electrode structure, high production costs, and difficulties in the production process itself. In this research, developments in the production of flexible electrodes, especially those that depend on carbon materials and metal nanoparticles, will be discussed and summarized in this research. The electrochemical performance and stability of the produced flexible electrodes will be compared. The factors contributing to the progress in the production of flexible lithium-ion batteries will also be discussed.

scholarly journals First-Principles Investigation on Electrochemical Performance of Na-Doped LiNi1/3Co1/3Mn1/3O2

2021 ◽  
Vol 8 ◽  
Author(s):  
Yumei Gao ◽  
Kaixiang Shen ◽  
Ping Liu ◽  
Liming Liu ◽  
Feng Chi ◽  
...  
Keyword(s):  
Potential Energy ◽  
Electrochemical Performance ◽  
Cathode Material ◽  
First Principles ◽  
Density Functional ◽  
Lithium Ion ◽  
Partial Density ◽  
Performance Study ◽  
Na Doping ◽  
Calculation Results

The cathode material LiNi1/3Co1/3Mn1/3O2 for lithium-ion battery has a better electrochemical property than LiCoO2. In order to improve its electrochemical performance, Na-doped LiNi1/3Co1/3Mn1/3O2 is one of the effective modifications. In this article, based on the density functional theory of the first-principles, the conductivity and the potential energy of the Na-doped LiNi1/3Co1/3Mn1/3O2 are calculated with Materials Studio and Nanodcal, respectively. The calculation results of the band gap, partial density of states, formation energy of intercalation of Li+, electron density difference, and potential energy of electrons show that the new cathode material Li1−xNax Ni1/3Co1/3Mn1/3O2 has a better conductivity when the Na-doping amount is x = 0.05 mol. The 3D and 2D potential maps of Li1−xNaxNi1/3Co1/3Mn1/3O2 can be obtained from Nanodcal. The maps demonstrate that Na-doping can reduce the potential well and increase the removal rate of lithium-ion. The theoretical calculation results match well with experimental results. Our method and analysis can provide some theoretical proposals for the electrochemical performance study of doping. This method can also be applied to the performance study of new optoelectronic devices.

scholarly journals Enhanced Electrochemical Property of Li1.2−xNaxMn0.54Ni0.13Co0.13O2 Cathode Material for the New Optoelectronic Devices

2021 ◽  
Vol 9 ◽  
Author(s):  
Yumei Gao ◽  
Yuchong Hui ◽  
Hang Yin
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Density Functional ◽  
Optoelectronic Devices ◽  
Rate Capability ◽  
Lithium Ion ◽  
Experimental Result ◽  
Partial Density ◽  
Performance Study ◽  
Sodium Doping

The Li-rich Mn-based oxide Li1.2Mn0.54Ni0.13Co0.13O2 has been extensively studied as a cathode material of the battery module for new optoelectronic devices. To improve and enhance the electrochemical performance, sodium doping is one of the effective approaches. According to the density functional theory of first-principles, the band gap, partial density of states, lithiation formation energy, electron density difference, and potential energy of electrons for Li1.2−xNaxMn0.54Ni0.13Co0.13O2 were simulated with Materials Studio, Nanodcal, and Matlab. When the sodium doping amount x = 0.10 mol, simulations show that Li1.2−xNaxMn0.54Ni0.13Co0.13O2 has a better conductivity. The potential maps of Li1.2−xNaxMn0.54Ni0.13Co0.13O2 obtained in Matlab demonstrate that the potential barrier is lower and the rate capability is enhanced after sodium doping. Results of analyses and calculations agree with the experimental result of Chaofan Yang’s group. This theoretical method could be a great avenue for the investigation of the battery application of new optoelectronic devices. Also, our findings could give some theoretical guidance for the subsequent electrochemical performance study on doping in the field of lithium-ion batteries.

Vertically oriented Sn3O4 nanoflakes directly grown on carbon fiber cloth for high-performance lithium storage

2019 ◽  
Vol 6 (6) ◽  
pp. 1468-1474 ◽  
Author(s):  
Hongyun Jia ◽  
Xinxin Cao ◽  
Anqiang Pan ◽  
Linjun Huang ◽  
Bo Yin ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Electrochemical Performance ◽  
High Performance ◽  
Hydrothermal Reaction ◽  
Lithium Storage ◽  
Flexible Electrodes ◽  
Carbon Fiber Cloth

Flexible electrodes of vertically oriented Sn3O4 nanoflakes grown on carbon fiber cloth were synthesized by a hydrothermal reaction, exhibiting superior electrochemical performance.

Carbon fiber cloth@VO2 (B): excellent binder-free flexible electrodes with ultrahigh mass-loading

2016 ◽  
Vol 4 (17) ◽  
pp. 6426-6432 ◽  
Author(s):  
Site Li ◽  
Gang Liu ◽  
Jun Liu ◽  
Yakun Lu ◽  
Qian Yang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Electrochemical Performance ◽  
Mass Loading ◽  
Flexible Electrodes ◽  
Carbon Fiber Cloth ◽  
Binder Free ◽  
First Time

Flexible electrodes of VO2 nanobelt arrays grown on carbon fiber cloth were synthesized for the first time, exhibiting superior electrochemical performance.

An “inverted load” strategy to fabricate interface-optimized flexible electrodes with superior electrochemical performance and ultrastability

2020 ◽  
Vol 8 (32) ◽  
pp. 11128-11137
Author(s):  
Ying Sun ◽  
Ying Yang ◽  
Ning-Bo Li ◽  
Meng Wang ◽  
Xu-Man Chen ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Flexible Electrode ◽  
Flexible Electrodes

An “inverted load” strategy for interface optimization has been proposed to fabricate flexible electrode with superior electrochemical performance and ultrastability.

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