#Lithium ion battery overview portable

There are similar plans around the word in promotion of electric and hybrid vehicles as well. In the USA, Obama administration has set a very ambitious goal to have one million plug-in hybrid vehicles on the road by 2015. Another important expanding market for Li-ion batteries is electric and hybrid vehicles, which require next-generation Li-ion batteries with not only high power, high capacity, high charging rate, long life, but also dramatically improved safety performance and low cost. For example, to charge the cell phone with increasing functionalities less frequently as the current phone will improve quality of one's life. As one may has already noticed from his/her daily life, the increasing functionality of mobile electronics always demand for better Li-ion batteries. Li-ion batteries are considered the powerhouse for the personal digital electronic revolution starting from about two decades ago, roughly at the same time when Li-ion batteries were commercialized.

#Lithium ion battery overview portable

They are currently the dominant mobile power sources for portable electronic devices, exclusively used in cell phones and laptop computers 1. Li-ion batteries, as one of the most advanced rechargeable batteries, are attracting much attention in the past few decades. Brief discussion on popularly studied “beyond Li-ion” batteries is also provided. In this tutorial review, the focus is to introduce the basic concepts, highlight the recent progress, and discuss the challenges regarding Li-ion batteries. New battery concepts have to be further developed to go beyond Li-ion batteries in the future. There are still notable challenges in the development of next-generation Li-ion batteries. To meet the increasing demand for energy storage, particularly from increasingly popular electric vehicles, intensified research is required to develop next-generation Li-ion batteries with dramatically improved performances, including improved specific energy and volumetric energy density, cyclability, charging rate, stability, and safety. Then much efforts have been put to further improve the performance of Li-ion batteries, achieved certain significant progress. The success of commercial Li-ion batteries in the 1990s was not an overnight achievement, but a result of intensive research and contribution by many great scientists and engineers. In addition, after optimizing the parameters of the battery models by a Genetic Algorithm (GA), four typical battery models including a combined model, two RC Equivalent Circuit Model (ECM), a Single Particle Model (SPM), and a Support Vector Machine (SVM) battery model are compared in terms of their accuracy and execution time.Li-ion batteries are the powerhouse for the digital electronic revolution in this modern mobile society, exclusively used in mobile phones and laptop computers.

Future research directions are also presented. Furthermore, the four battery modeling methods are compared in terms of their pros and cons. Battery modeling methods are classified into four categories on the basis of their theoretical foundations, and their expressions and features are detailed. This paper mainly focuses on battery modeling methods, which have the potential to be used in a model-based SOC estimation structure. Model-based methods are an effective solution for accurate and robust SOC estimation, the performance of which heavily relies on the battery model. As a critical indictor in the Battery Management System (BMS), State of Charge (SOC) is closely related to the reliable and safe operation of lithium-ion (Li-ion) batteries.