In resent years ANN is widely reported for modeling in different areas of science including electro chemistry. This includes modeling of different technological batteries such as lead acid battery, Nickel cadmium batteries etc. Lithium ion batteries are advance battery technology which satisfy most of the space mission requirements. Low earth orbit (LEO)space craft batteries undergo large numbe...

In this thesis, a semi-empirical lithium-ion battery capacity degradation model is developed. The basic form of the model is developed from previous theoretical studies, then experimental data of Lithium Manganese Oxide (LMO) batteries are used to calibrate the model and to calculate coefficients. Based on the developed degradation model, Li-Ion Battery Energy Storage System’s (BESS) value in p...

To accurately estimate the state of charge of a lithium-ion battery pack used in electric vehicles, a neurofuzzy system is proposed. The subtractive clustering is used to determine the structure and the initial parameters of the neuro-fuzzy system to reduce heuristic errors. The algorithm of adaptive neuro-fuzzy inference (ANFIS) is adopted to optimize the parameters of the neuro-fuzzy system. ...

INTRODUCTION Electrolytes typically used in lithium batteries consist of a lithium salt dissolved in an organic solvent, or a mixture of these solvents. The solvents fall into two general classes: ethers or alkyl esters of carbonic acid. Because of lower volatility and higher flash point, the organic carbonates are the preferred solvent class in commercial batteries. Propylene carbonate (PC) ha...

Estimation of state of charge (SOC) is of great importance for lithium-ion (Li-ion) batteries used in electric vehicles. This paper presents a state of charge estimation method using nonlinear predictive filter (NPF) and evaluates the proposed method on the lithium-ion batteries with different chemistries. Contrary to most conventional filters which usually assume a zero mean white Gaussian pro...

Transport Equations of a Lithium-Ion Battery Stefan Volkwein∗, Andrea Wesche∗ † ∗Universität Konstanz, Fachbereich Mathematik und Statistik , Universitätsstraße 10, D-78457 Konstanz, E-mail: [email protected] † Adam Opel AG, Bahnhofsplatz, D-65423 Rüsselsheim, E-mail: [email protected] Abstract—In this paper we consider a coupled system of nonlinear parametrized partial di...

In manufacturing lithium-ion battery packs for electrical vehicles such as the Chevy Volt, it is critical to create reliable interconnections between battery cells, module-to-module, and module-to-control unit. Such joint connections must possess reliable electrical conductivity and sufficient mechanical strength to ensure battery performance. Ultrasonic metal welding has been adopted for batte...