The Unique Structural Evolution of the O3-Phase Na2/3Fe2/3Mn1/3O2during High Rate Charge/Discharge: A Sodium-Centred Perspective

2015 ◽  
Vol 25 (31) ◽  
pp. 4994-5005 ◽  
Author(s):  
Neeraj Sharma ◽  
Elena Gonzalo ◽  
James C. Pramudita ◽  
Man Huon Han ◽  
Helen E. A. Brand ◽  
...  
Keyword(s):  
Structural Evolution ◽  
High Rate ◽  
Charge Discharge

Metal film deposition on carbon anodes for high rate charge–discharge of Li–ion batteries

1999 ◽  
Vol 15 (3) ◽  
pp. 225-229 ◽  
Author(s):  
T. Takamura ◽  
J. Suzuki ◽  
C. Yamada ◽  
K. Sumiya ◽  
K. Sekine
Keyword(s):  
Metal Film ◽  
Film Deposition ◽  
High Rate ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Carbon Anodes ◽  
Charge Discharge

Hysteresis Abated P2-type NaCoO2 Cathode Reveals Highly Reversible Multiple Phase Transitions for High-Rate Sodium-ion Batteries

2021 ◽  
Author(s):  
VENKATA RAMI REDDY BODDU ◽  
Manikandan Palanisamy ◽  
Lichchhavi Sinha ◽  
Subhash Yadav ◽  
Vilas Pol ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Discharge Rate ◽  
Cycle Life ◽  
Sodium Ion ◽  
High Rate ◽  
Sodium Ion Batteries ◽  
Long Cycle Life ◽  
Multiple Phase ◽  
Ion Intercalation ◽  
Charge Discharge

Despite multiple phase transitions occur during Na+ ion intercalation and deintercalation, enhanced charge-discharge rate, and long cycle life are achieved to hexagonal shaped P2-type NaCoO2 cathode for sodium-ion batteries (SIBs)....

High Rate Charge/Discharge Characteristics in Composite Film of Mesoporous TiO2 and Polyaniline for Photorechargeable Battery

2014 ◽  
Vol 1606 ◽  
Author(s):  
Teruaki Nomiyama ◽  
Kenta Sakamoto ◽  
Tomohito Yoshida ◽  
Akinori Kagiyama ◽  
Yuji Horie
Keyword(s):  
Composite Film ◽  
High Performance ◽  
Specific Capacity ◽  
Electrical Energy ◽  
High Rate ◽  
Galvanostatic Charge ◽  
Discharge Characteristics ◽  
Electrical Energy Storage ◽  
Charging Rate ◽  
Charge Discharge

ABSTRACTOne of promising photorechargeable electrode, which has two functions of photovoltaic and electrical energy storage, is a composite film of mesoporous TiO2 and conducting polymer polyaniline. Galvanostatic charge/discharge characteristics of the TiO2-polyaniline composite were examined to reveal how fast the film was charged. The film with a specific capacity 60-120 mAh g–1 was found to be fully charged at high charging rate 20 mA cm–2 which is comparable to high performance solar cells. Such high charging rate was achieved by the compact polyaniline layer covering the large specific surface area of mesoporous TiO2 film.

VO2(B)/Graphene Forest for High-Rate Li-Ion Battery

2015 ◽  
Vol 1773 ◽  
pp. 7-14
Author(s):  
Guofeng Ren ◽  
Zhaoyang Fan
Keyword(s):  
Forest Structure ◽  
High Current Density ◽  
Discharge Rate ◽  
High Rate ◽  
Li Ion Batteries ◽  
3D Scaffold ◽  
Vertically Aligned ◽  
Li Ion ◽  
2D Nanomaterials ◽  
Charge Discharge

ABSTRACT2D nanomaterials, when assembled into an ordered macrostructure, will present many great opportunities, including for Li-ion batteries (LIBs). We report densely-packed vertically-aligned VO2(B) nanobelts (NBs)-based forest structure synthesized on edge-oriented graphene (EOG) network. Using a EOG/Ni foam as a 3D scaffold, aligned VO2(B) NBs can be further synthesized into a folded 3D forest structure to construct a freestanding electrode for LIBs. Electrochemical studies found that such a freestanding VO2(B)/EOG electrode, which combines the unique merits of 2D VO2(B) NBs and 2D graphene sheets, has excellent charge-discharge rate performance. A discharge capacity of 178 mAh g-1 at a rate of 59 C and 100 mAh g-1 at 300 C was measured. A good charge-discharge cycling stability under a high current density was also demonstrated. The results indicate VO2(B)/EOG forest based freestanding electrode is very promising for developing high-rate LIBs.

Irreversible phase transition between LiFePO4 and FePO4 during high-rate charge-discharge reaction by operando X-ray diffraction

2016 ◽  
Vol 309 ◽  
pp. 122-126 ◽  
Author(s):  
Ikuma Takahashi ◽  
Takuya Mori ◽  
Takahiro Yoshinari ◽  
Yuki Orikasa ◽  
Yukinori Koyama ◽  
...  
Keyword(s):  
Phase Transition ◽  
High Rate ◽  
X Ray Diffraction ◽  
X Ray ◽  
Charge Discharge ◽  
Discharge Reaction

High-Rate Charge/Discharge Properties of Li Ion Secondary Battery Using V2O5/Carbon Composite Electrodes with Carbon Fiber

2006 ◽  
Vol 301 ◽  
pp. 159-162
Author(s):  
Akira Kuwahara ◽  
Shinya Suzuki ◽  
Masaru Miyayama
Keyword(s):  
Carbon Fiber ◽  
Current Density ◽  
High Current Density ◽  
Fiber Composite ◽  
Electronic Conductivity ◽  
Lithium Ion ◽  
High Rate ◽  
Composite Electrodes ◽  
High Electronic Conductivity ◽  
Charge Discharge

The charge/discharge properties of V2O5/carbon composites with controlled microstructures were investigated to achieve a high-rate lithium electrode performance. Composite electrodes were synthesized by mixing a V2O5 sol, carbon and a surfactant, followed by drying. V2O5/AB (acetylene black) and V2O5/VGCF (vapor-grown carbon fiber) composite electrodes showed high-rate charge/discharge properties only when they had very high carbon contents. V2O5/ (AB and VGCF) composite electrodes with controlled microstructures exhibited a discharge capacity of 245 mA·h·g-1 at a high current density of 40 A·g-1, which was approximately 70% of that at a low current density of 100 mA·g-1. The improvement in the high-rate charge/discharge properties was attributed to the short lithium ion diffusion distance, large reaction area and high electronic conductivity of those composite electrodes.

scholarly journals Study on the Rate Performance of LiCo1/3Ni1/3Mn1/3O2

2010 ◽  
Vol 158 ◽  
pp. 256-261 ◽  
Author(s):  
Dong Yun Zhang ◽  
Juan Yi ◽  
Qun Wei ◽  
Kun Liu ◽  
Zhen Zhen Fan ◽  
...  
Keyword(s):  
Impedance Spectroscopy ◽  
Raw Materials ◽  
Lithium Ion ◽  
Lithium Hydroxide ◽  
High Rate ◽  
Rate Performance ◽  
Ac Impedance Spectroscopy ◽  
Nickel Manganese ◽  
Charge Discharge ◽  
Chemical Coprecipitation Method

Ternary lithium-ion battery is currently one of the hot cathode materials. In this paper, with acetate of nickel, manganese and cobalt as raw materials and lithium hydroxide as precipitation agent, LiCo1/3Mn1/3Ni1/3O2 was prepared by chemical coprecipitation method. LAND charge-discharge testing was used to study the electrochemical performance of materials at different rates (0.5C, 1C, 2C), and AC impedance spectroscopy was employed to study the rate performance and reasons of cyclical stability. The results showed that the stable SEM film formed under high rate was the main reason for the increased rate.

Sign in / Sign up

Export Citation Format

Share Document