Synthesis and Characterization of Lithiated Nickel Based Metal Oxides as Positive Electrode Materials for Lithium Ion Batteries

1999 ◽  
Vol 575 ◽  
Author(s):  
S. Fujitani ◽  
H. Fujimoto ◽  
T. Nohma ◽  
K. Nishio
Keyword(s):  
Metal Oxides ◽  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Cycle Performance ◽  
High Discharge Capacity ◽  
Discharge Cycle ◽  
The Difference ◽  
Charge Discharge

ABSTRACTLiNi1−xCoxO2(x=0.2, 0.3, 0.4) was synthesized through a sintering process from two different types of source materials of nickel and cobalt, namely each respective hydroxide and oxide, and composite hydroxide. Influence of the difference on charge-discharge characteristics, crystal structure and distribution of the metal elements was investigated.The composite hydroxides formulated in Ni1−xCox(OH)2 as the source material brought better homogenized composite lithiated nickel based metal oxides exhibiting the larger specific discharge capacity. Further modification of LiNi0.6Co0.4)2 by manganese through sintering from the composite hydroxide including manganese brought a good charge-discharge cycle performance as well as a high discharge capacity of 160mAh/g level.A cylindrical test cell of 18mm in diameter and 65mm in height using the LiNi0.6Co0.3Mn0.1O2 exhibited discharge capacity of 1700mAh which is larger than that using LiCoO2, and also exhibited a competitive charge-discharge cycle performance to commercialized lithium ion batteries.

Two-dimensional SnS2@PANI nanoplates with high capacity and excellent stability for lithium-ion batteries

2015 ◽  
Vol 3 (7) ◽  
pp. 3659-3666 ◽  
Author(s):  
Gang Wang ◽  
Jun Peng ◽  
Lili Zhang ◽  
Jun Zhang ◽  
Bin Dai ◽  
...  
Keyword(s):  
Electron Transport ◽  
Lithium Ion Batteries ◽  
Electrode Materials ◽  
High Capacity ◽  
Lithium Ion ◽  
Two Dimensional ◽  
Volume Changes ◽  
Nanostructured Electrode ◽  
Charge Discharge ◽  
Excellent Stability

Nanostructured electrode materials have been extensively studied with the aim of enhancing lithium ion and electron transport and lowering the stress caused by their volume changes during the charge–discharge processes of electrodes in lithium-ion batteries.

Effect of heat treatment time on cycle performance of LiMn2O4 with “Nano Inclusion” for lithium ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (53) ◽  
pp. 42455-42460 ◽  
Author(s):  
Shogo Esaki ◽  
Motoaki Nishijima ◽  
Shigeomi Takai ◽  
Takeshi Yao
Keyword(s):  
Heat Treatment ◽  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Treatment Time ◽  
Lithium Ion ◽  
Heat Treatment Time ◽  
Cycle Performance ◽  
Heat Treated

The cycle performance of LiMn2O4 with “Nano Inclusions” is higher than that of LiMn2O4 without “Nano Inclusions” and the discharge capacity of LiMn2O4 with “Nano Inclusions” heat-treated for 4 h surpassed that of LiMn2O4 without it at over 31 cycles.

Molybdate flux growth of idiomorphic Li(Ni1/3Co1/3Mn1/3)O2 single crystals and characterization of their capabilities as cathode materials for lithium-ion batteries

2016 ◽  
Vol 4 (19) ◽  
pp. 7289-7296 ◽  
Author(s):  
T. Kimijima ◽  
N. Zettsu ◽  
K. Yubuta ◽  
K. Hirata ◽  
K. Kami ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Single Crystals ◽  
Discharge Capacity ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Flux Growth ◽  
High Discharge ◽  
High Discharge Capacity ◽  
Highly Dispersed

Highly dispersed primary Li(Ni1/3Co1/3Mn1/3)O2 crystals, which showed high discharge capacity at a high C-rate, were grown from a Li2MoO4 flux.

Synthesis and Application of Carbon-Based Nanocomposites

2013 ◽  
Vol 345 ◽  
pp. 172-175
Author(s):  
Shi Jun Yu ◽  
Xu Han ◽  
Da Wei Yu ◽  
Yan Ming Chen ◽  
Xiao Li Wang
Keyword(s):  
Lithium Ion Batteries ◽  
Electrode Materials ◽  
Lithium Ion ◽  
High Volume ◽  
High Energy ◽  
High Energy Density ◽  
Cycle Performance ◽  
Active Metal ◽  
Electrochemically Active ◽  
Carbon Coated

Lithium ion batteries have been considered as the most effective and practical technologies for electrochemical energy storage. To meet the demand for lithium ion batteries with high energy density and excellent cycle performance, numerous efforts have been devoted to the development of new electrode materials. Electrochemically active metal oxides have emerged as the most promising candidates for the anode materials in the next generation lithium ion batteries duo to their high theoretical capacities and natural abundance. However, the extremely high volume change induced by the alloying reaction with lithium in the bottleneck for the commercialization of these materials. To overcome these obstacles, carbonaceous materials are commonly introduced as matrices to absorb the volume changes and improve the structural stability of the electrode materials. Hence, the present article describes the synthetic pathway of carbon-coated nanomaterials and applications.

Retracted Article: In situ nano-coating on Li1.2Mn0.52Ni0.13Co0.13O2 with a layered@spinel@coating layer heterostructure for lithium-ion batteries

2015 ◽  
Vol 3 (42) ◽  
pp. 21290-21297 ◽  
Author(s):  
Bing Li ◽  
Chao Li ◽  
Jijun Cai ◽  
Jinbao Zhao
Keyword(s):  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Coating Layer ◽  
Lithium Ion ◽  
Layered Oxides ◽  
High Discharge ◽  
High Discharge Capacity ◽  
Nano Coating ◽  
Retracted Article

Lithium-rich manganese-based layered oxides with a composition of xLi2MnO3·(1 − x)LiMO2 (M = Mn, Co, Ni, etc.) are attractive, due to their high discharge capacity.

scholarly journals Enhanced electrochemical performance of RuO2 doped LiNi1/3Mn1/3Co1/3O2 cathode material for Lithium-ion battery

2021 ◽  
Author(s):  
K. Kalaiselvi ◽  
S. Premlatha ◽  
M. Raju ◽  
Paruthimal Kalaignan Guruvaiah
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Electrode Materials ◽  
Electrochemical Impedance ◽  
Sol Gel ◽  
Lithium Ion ◽  
X Ray Diffraction ◽  
High Discharge Capacity ◽  
Nitrate Precursor

Abstract LiNi1/3Mn1/3Co1/3O2 as a promising cathode material for lithium-ion batteries was synthesized by a sol-gel method using nitrate precursor calcined at 800°C for 10 hours. The crystallite nature of samples is confirmed from X-ray diffraction analysis. SEM and TEM analyses were used to investigate the surface morphology of the prepared samples. It was found that, highly crystalline polyhedral RuO2 nanoparticles are well doped on the surface of pristine LiNi1/3Mn1/3Co1/3O2 with a size of about approximately 200 nm. The chemical composition of the prepared samples was characterized by EDX and XPS analyses. The electrochemical performance of the proposed material was studied by cyclic voltammetry and charge/discharge analyses. The electrode kinetics of the samples was studied by electrochemical impedance spectroscopy. The developed RuO2 doping may provide an effective strategy to design and synthesize the advanced electrode materials for lithium ion batteries. The doping strategy has dramatically increased the capacity retention from 74 % to 90% with a high discharge capacity of 251.2 mAhg− 1. 3 % RuO2-doped LiNi1/3Mn1/3Co1/3O2 cathode materials have showed the similar characteristics of two potential plateaus obtained at 2.8 and 4.2 V compared with un doped electrode cathode material. These results revealed the enhanced performance of RuO2- doped LiNi1/3Mn1/3Co1/3O2 during insertion and extraction of lithium ions compared to pristine material.

A Hybrid CNN-LSTM for Discharge Capacity Estimation of Lithium-ion Batteries

2021 ◽  
pp. 1-13
Author(s):  
Yongsheng Li ◽  
Akhil Garg ◽  
Shruti Shevya ◽  
Wei Li ◽  
Liang Gao ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Short Term Memory ◽  
Lithium Ion ◽  
Battery Management System ◽  
Capacity Estimation ◽  
Short Term ◽  
Term Memory ◽  
Long Short Term Memory ◽  
Charge Discharge

Abstract Predicting discharge capacities of Lithium-ion batteries (LIBs) is essential for safe operation of the battery in Electric Vehicles (EVs). In this paper, a Convolutional Neural Network-Long Short Term Memory (CNN-LSTM) based deep learning is proposed to estimate the discharge capacity of LIBs. The parameters such as the voltage, current, temperature and charge/discharge capacity are recorded from a Battery Management System (BMS) at various stages of the charge-discharge cycles. Data was recorded keeping the stress constant because this parameter couldn't be controlled. Two different sets of data were obtained at two magnitudes of stress values. The experiments conducted to collect the data was recorded in cycles, where each cycle was divided into 7 steps. Each testing cycle comprises of charging, discharging, rest and cross validation test. The initial layers are convolutional layers that helps in feature extraction followed by a Long Short Term Memory (LSTM) layer. The evaluation model was done using multiple train test split method. The lower values of weighted mean squared error (MSE) obtained suggests that discharge capacity estimation using CNN-LSTM is a reliable method when compared to the conventional voltage-based method. The CNN-LSTM program can further be compiled in BMS in EVs to obtain real time status for State of Charge (SOC) and State of Health (SOH) values.

Graphene-wrapped sulfur-based composite cathodes: ball-milling synthesis and high discharge capacity

RSC Advances ◽  
2014 ◽  
Vol 4 (89) ◽  
pp. 48438-48442 ◽  
Author(s):  
Zhong Su ◽  
Chenglong Gao ◽  
Hanlin Li ◽  
Sanjay Nanda ◽  
Chao Lai ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Ball Milling ◽  
Discharge Capacity ◽  
Large Scale ◽  
Electrode Materials ◽  
Cycle Performance ◽  
High Discharge ◽  
High Discharge Capacity ◽  
Composite Cathodes ◽  
Good Consistency

A graphene-wrapped sulfur/carbon nanotubes composite is prepared via a ball-milling route, which can help realize the large-scale synthesis of electrode materials with good consistency. The obtained composite shows a high discharge capacity and good cycle performance.

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