scholarly journals A Diffusion Model in a Two-Phase Interfacial Zone for Nanoscale Lithium-Ion Battery Materials

2012 ◽  
Author(s):  
Cheng-Kai ChiuHuang ◽  
Hsiao-Ying Shadow Huang
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Electric Vehicle ◽  
Cathode Materials ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Capacity Loss ◽  
Induced Stress ◽  
Stress Formation ◽  
Diffusion Induced Stress

The development of lithium-ion batteries plays an important role to stimulate electric vehicle (EV) and plug-in electric vehicle (PHEV) industries and it is one of many solutions to reduce US oil import dependence. To develop advanced vehicle technologies that use energy more efficiently, retaining the lithium-ion battery capacity is one of major challenges facing by the electrochemical community today. During electrochemical processes, lithium ions diffuse from and insert into nanoscaled cathode materials in which stresses are formed. It is considered that diffusion-induced stress is one of the factors causing electrode material capacity loss and failure. In this study, we present a model which is capable for describing diffusion mechanisms and stress formation in nano-platelike cathode materials, LiFePO4 (Lithium-iron-phosphate). We consider particle size >100 nm in this study since it has been suggested that very small nanoparticles (<100 nm) may not undergo phase separation during fast diffusion. To evaluate diffusion-induced stress accurately, factors such as the diffusivity and phase boundary movements are considered. Our result provides quantitative lithium concentrations inside LiFePO4 nanoparticles. The result could be used for evaluating stress formation and provides potential cues for precursors of capacity loss in lithium-ion batteries. This study contributes to the fundamental understanding of lithium ion diffusion in electrode materials, and results from this model help better electrode materials design in lithium-ion batteries.

Fracture damage of nanowire lithium-ion battery electrode affected by diffusion-induced stress and bending during lithiation

RSC Advances ◽  
2014 ◽  
Vol 4 (40) ◽  
pp. 21072-21078 ◽  
Author(s):  
Bingbing Chen ◽  
Jianqiu Zhou ◽  
Xuming Pang ◽  
Pengfei Wei ◽  
Yunbo Wu ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Volume Changes ◽  
Significant Volume ◽  
Induced Stress ◽  
Lithium Diffusion ◽  
Battery Electrode ◽  
Diffusion Induced Stress ◽  
Fracture Damage

Lithium-ion battery electrode materials generally experience significant volume changes during lithium diffusion during charging and discharging.

scholarly journals Mechanics of Diffusion-Induced Fractures in Lithium-ion Battery Materials

2013 ◽  
Vol 1541 ◽  
Author(s):  
Cheng-Kai ChiuHuang ◽  
Michael A. Stamps ◽  
Hsiao-Ying Shadow Huang
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Large Scale ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Energy Storage Devices ◽  
Capacity Loss ◽  
Induced Fractures ◽  
Information Energy ◽  
Battery Technology

ABSTRACTOur study is motivated by the need for development and deployment of reliable and efficient energy storage devices, such as lithium-ion batteries. However, the rate-capacity loss is the key obstacle faced by current lithium-ion battery technology, hindering many potential large-scale engineering applications, such as future transportation modalities, grid stabilization and storage systems for renewable energy. During electrochemical processes, diffusion-induced stress is an important factor causing electrode material capacity loss and failure. In this study, we present models that are capable for describing diffusion mechanisms and stress formation in LiFePO4 nanoparticles, a lithium-ion battery cathode material which promises an alternative, with the potential for reduced cost and improved safety. To evaluate mechanics of diffusion-induced fractures, a plate-like model is adopted with anisotropic materials properties and volume misfits during the phase transformation are considered. Stress distribution at phase boundaries and fracture mechanics information (energy release rates and stress intensity factors) are provided to further understand the stress development due to lithium-ion diffusion during discharging. This study contributes to the fundamental understanding of kinetics of materials in lithium-ion batteries, and results from our stress analysis provides better electrode materials design rules for future lithium-ion batteries.

LixCn as Anode Material for Lithium Ion Batteries

2006 ◽  
Vol 972 ◽  
Author(s):  
Haiming Xie ◽  
Haiying Yu ◽  
Abraham F. Jalbout ◽  
Guiling Yang ◽  
Xiumei Pan ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Cathode Materials ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Limiting Factors ◽  
Discharge Process ◽  
Metal Foil ◽  
Lithium Metal ◽  
Lithium Secondary Batteries

AbstractWe design a way that the anode hosts provide lithium ion in lithium ion battery operation. If the limiting factors of the cathode materials are less, there will be more alternatives for it. It was proven to be successful by two kinds of test cells based on LixCn as anode material, and β-FeOOH or Cr8O21 as cathode materials. Their theoretical capacities are much higher than those present electrode materials. Unlike the lithium secondary batteries with lithium metal foil or lithium alloy as anode, this type of lithium ion batteries with LixCn as anode prohibit dendrite formation during charging-discharge process. The idea of lithium ion sources coming from the anode can come true successfully as a result that steady protecting solution be sought for LixCn.

scholarly journals Effect of Current Rate and Prior Cycling on the Coulombic Efficiency of a Lithium-Ion Battery

Batteries ◽  
2019 ◽  
Vol 5 (3) ◽  
pp. 57 ◽  
Author(s):  
Seyed Madani ◽  
Erik Schaltz ◽  
Søren Knudsen Kær
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Degradation Behavior ◽  
Battery Cell ◽  
The Third ◽  
Capacity Loss ◽  
Battery Cells

The determination of coulombic efficiency of the lithium-ion batteries can contribute to comprehend better their degradation behavior. In this research, the coulombic efficiency and capacity loss of three lithium-ion batteries at different current rates (C) were investigated. Two new battery cells were discharged and charged at 0.4 C and 0.8 C for twenty times to monitor the variations in the aging and coulombic efficiency of the battery cell. In addition, prior cycling was applied to the third battery cell which consist of charging and discharging with 0.2 C, 0.4 C, 0.6 C, and 0.8 C current rates and each of them twenty times. The coulombic efficiency of the new battery cells was compared with the cycled one. The experiments demonstrated that approximately all the charge that was stored in the battery cell was extracted out of the battery cell, even at the bigger charging and discharging currents. The average capacity loss rates for discharge and charge during 0.8 C were approximately 0.44% and 0.45% per cycle, correspondingly.

scholarly journals Metal–organic framework based electrode materials for lithium-ion batteries: a review

RSC Advances ◽  
2021 ◽  
Vol 11 (47) ◽  
pp. 29247-29266
Author(s):  
Rimsha Mehek ◽  
Naseem Iqbal ◽  
Tayyaba Noor ◽  
M. Zain Bin Amjad ◽  
Ghulam Ali ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Electrode Materials ◽  
Metal Organic Framework ◽  
Lithium Ion ◽  
Review Article ◽  
Metal Organic ◽  
Electrochemical Evaluation ◽  
Organic Framework

In this review article, a comprehensive insight is given into current progress of electrochemical evaluation of MOFs based material as efficient anode and cathode materials for LIBs.

scholarly journals Research Progress of Cathode Materials for Lithium-ion Batteries

2021 ◽  
Vol 233 ◽  
pp. 01020
Author(s):  
Kaijia Lu ◽  
Chuanshan Zhao ◽  
Yifei Jiang
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Research Progress ◽  
Energy Storage Materials ◽  
Factors Affecting ◽  
New Energy ◽  
Oxide Spinel

Lithium-ion batteries have attracted widespread attention as new energy storage materials, and electrode materials, especially cathode materials, are the main factors affecting the electrochemical performance of lithium-ion batteries, and they also determine the cost of preparing lithium-ion batteries. In recent years, there have been a lot of researches on the selection and modification of cathode materials based on lithium-ion batteries to continuously optimize the electrochemical performance of lithium-ion batteries. This article introduces the research progress of cathode materials for lithium ion batteries, including three types of cathode materials (layer oxide, spinel oxide, polyanionic compound) and three modification methods (doping modification, surface coating modification, nano modification method), and prospects for the future development of lithium ion battery cathode materials.

Achieving high specific capacity of lithium-ion battery cathodes by modification with “N–O˙” radicals and oxygen-containing functional groups

2017 ◽  
Vol 5 (47) ◽  
pp. 24636-24644 ◽  
Author(s):  
Chengyi Lu ◽  
David W. Rooney ◽  
Xiong Jiang ◽  
Wang Sun ◽  
Zhenhua Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Electric Vehicle ◽  
Functional Groups ◽  
Specific Capacity ◽  
Lithium Ion ◽  
High Specific Capacity

Enhancing the cathode capacity of lithium ion batteries (LIBs) has been one strategy to improve the energy density of batteries for electric vehicle applications, because of the limitation of inorganic cathode capacity.

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