A5014555565- Advanced Battery Technologies Research
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Electrical Contact Performance and Analysis
- Mechanical stress and fatigue analysis
- Nonlinear Dynamics and Pattern Formation
- Adhesion, Friction, and Surface Interactions
- Electronic Packaging and Soldering Technologies
- Metal and Thin Film Mechanics
- Advanced Combustion Engine Technologies
- Extraction and Separation Processes
- Combustion and flame dynamics
- Tribology and Wear Analysis
- Copper Interconnects and Reliability
A123 Systems (United States)
2015-2017
Auburn University
2010-2014
Relatively little is known about the fretting mechanism of high power connectors used in hybrid vehicles, even though vehicles are widely being introduced to market. This paper experimentally investigates mechanisms silver-plated caused by vibrations. In order emulate operational and environmental effects, a test stand was designed that capable measuring electrical contact resistance (ECR), relative displacement connector temperature. The experimental results show variation ECR subject...
Researchers are in search of parameters inside Li-ion batteries that can be utilized to control their external behavior. Physics-based electrochemical model could bridge the gap between Li+ transportation and distribution battery performance outside. In this paper, two commercially available anode materials: graphite Lithium titanate (Li4Ti5O12 or LTO) were selected a physics-based was developed based on half-cell assembly testing. It is found LTO has smaller diffusion coefficient (Ds) than...
High power connectors used in hybrid vehicles are exposed to vibrations that cause changes connector resistance. When vibration starts, the resistance increases temporarily and oscillates. stops, returns a value is similar original state. In this paper, finite element models developed analyze phenomenon compared with experimental results. A two-dimensional model was predict motions at any location of system. contact spring present between female male parts modeled three dimensions time...
For high power Li-ion batteries, an important approach to improve the accuracy of modeling and algorithm development is consider current dependence internal resistance, especially for large applications in mild/median hybrid electric vehicles (MHEV). first time, work has experimentally captured decrease resistance at increasing up C-rate 25 developed equivalent circuit model (ECM) with dependent parameters. The integrated extended Kalman filter (EKF) SOC estimation, which validated by...
Relatively little is known about the fretting mechanism of high power connectors used in hybrid vehicles, even though vehicles are widely being introduced to market. This work experimentally investigates mechanisms silver-plated caused by vibrations. In order emulate operational and environmental effects, a test stand was designed that capable measuring ECR, relative displacement connector temperature. The experimental results show variation electrical contact resistance (ECR) subject...
Experimental investigations conducted on a large format lithium ion polymer battery have revealed that one of the major factors causing capacity and power fade is formation growth solid electrolyte interphase (SEI), particularly at anode during charging, which consumes ions electrolytes. As result, internal resistance increases. The SEI formed graphite surface protects electrode from being decomposed by solvent initially, but its leads to gradual fade. This phenomenon described Butler-...
The breakdown of the protective solid electrolyte interface (SEI) layer on anode electrode can initiate further decomposition reaction and result in formation a non-uniform electronically insulating products graphite particles. results from this study indicated that raising state charge (SOC) increased rate side to form thick deposit layer. surface formed at electrode/electrolyte interfacial transfer resistance rise overall batteries impedance. A direct correlation between capacity fade...
The formation of the solid electrolyte interface (SEI) layer on surface anode electrode prevents further decomposition reaction. However, certain battery operating parameters initiate solvent and salts reaction with lithium to electrode. This results in an insoluble products that is non-uniform, electronically insulating, unstable graphite particles. loss/consumption recyclable ions at by this passivation one causes major reversible capacity loss ion battery. Understanding potential charge...
Abstract not Available.
Abstract not Available.