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This paper brings the theoretical approach to the sizing of electric drive for the special light vehicle — mountain bike, optimal design and concept of the power chain, specifics of components and some results from practical tests in the field. The prototype power and characteristics are sufficient even in the heavy terrain for all supposed aims. Some results from the prototype practical tests are...
Recently, the battery industry has represented one important and growing sector where the use of non-toxic and non-hazardous substitute materials has not rapidly developed. The environmentally friendly polymer electrolyte is required to decrease the risk of environmental pollution caused by toxic materials of battery components. Therefore, in this study was focused on the preparation of the environmentally...
Przedstawiono ciekłe elektrolity stosowane w ogniwach litowych i litowo-jonowych. Omówiono rodzaje i właściwości soli litu, z uwzględnieniem zastosowania nowych soli, takich jak LiPF₃(C₂F₅)₃ (LiFAP), LiN(SO₂F)₂ (LiFSI) oraz bis(szczawiano)boran litu (LiBOB). Przedstawiono możliwość zastąpienia klasycznych rozpuszczalników organicznych (głównie liniowych i cyklicznych węglanów) cieczami jonowymi (IL)...
Comparably long charging time for battery of electric and hybrid vehicles is one of barriers for massive commercialization of the vehicles. Typical charging methods are by a constant current (CC) with constant voltage (CV), pulsed or tapered current. Theoretically, the charging time can be reduced by increased amplitude of the charging current, which, however, accelerate degradation of cells and reduces...
Since a laptop caught fire in 2006 at the latest, Li-ion cells were considered as more dangerous than other accumulators [1]. Recent incidents, such as the one involving a BYD e6 electric taxi [2] or the Boeing Dreamliner [3], give rise to questions concerning the safety of L#i-ion cells. This is a crucial point, since Li-ion cells are increasingly integrated in all kinds of (electric) vehicles. Therefore...
Recently, the battery industry has represented one important and growing sector where the use of non-toxic and non-hazardous substitute materials has not rapidly developed. The environmentally friendly polymer electrolyte is required to decrease the risk of environmental pollution caused by toxic materials of battery components. Therefore, in this study was focused on the preparation of the environmentally...
Hybrid polymer gel electrolyte for lithium battery has been successfully prepared from a mixture of sol-gel derived siloxane and etylene glycol polymers blended with electrolyte lithium salt. The electrochemical impedance shows no oxidation or reduction originated from this hybrid polymer gel. The impedance characteristics of this polymer gel are contributed from ion polarization at high frequency...
Issue of fossil fuel depletion in near time has led engineers and scientists to develop cars that use other forms of energy source, such as electricity. Lithium batteries are utilized as power storage in electric cars considering their advantages. Nevertheless, they are prone to external disturbances, such as physical shock or metal debris which may cause electric short and lead to fire. Design and...
The prediction of discharge capacity of lithium batteries was one of the main tasks of battery management system. The discharge capacity of lithium batteries was related with many parameters, including discharge current, voltage, temperature, and the past charge and discharge history. The prediction methods of existing lithium battery discharge capacity mostly have no learning capabilities and nonlinear...
Because of the imbalances between the series-connected cells during the charging will greatly reduce the battery packs cycle life, charge equalization has become important consideration in the serially connected battery cells charging technology. To improve the unbalance of the series-connected battery packs and guarantee that the voltage of all battery cells is at the same level in the battery packs,...
The PDTDA and P(2-ATP), which have polyaniline main chain and bonds structure, were easily polymerization by chemical oxidation method. Although doped polyaniline was not soluble, doped PDTDA and P(2-ATP) were soluble. The chemical structure of dedoped and doped PDTDA and P(2-ATP) was characterized by FT-IR and XPS analysis. We studied the electrochemical performance such as the charge-discharge ability,...
Owing to the characteristics of nonlinear and time varying of different parameters in processing of storage battery charging, in order to realize rapid charge for lithium battery with high efficiency, the idea of charge system for lithium battery based on TMS320F2407 is proposed in this paper. Fuzzy control of recursive neural network based on immune genetic algorithm is adopted, to solve some problems...
Along with the development of energy storage technology, lithium battery management system became more and more concerned. As one of the key technologies for energy storage system, it is more extensive applied especially in the electric car field. In this article, an inductance balancing method based on the boost topological structure was design to control lithium battery system, including battery...
After a Lithium battery pack is used for a period, the inequality of battery cells will increase and the performance of the pack will decrease. The lack of appropriate user maintenance measures results in the scrap of the whole battery pack and resource waste. To solve the above problems, this paper designed an intelligent lithium battery monitoring and maintenance system based on the relative capacity...
The research of the energy source of online condition monitoring devices for transmission line is a current interest. An energy capture system using both current transformer (CT) and lithium batteries is proposed in this paper. Through this system, the CT with variable turns transmits energy of transmission lines to devices and lithium batteries. The latter works only if line current is inadequate...
Nowadays wind power is a kind of green energy that is developed most rapidly all over the world, but its application range is restricted by its own fluctuations and intermittent features. In this article, the possible approaches to wind power application and the wind power storage methods are analyzed in respect of wind power storage. Because of its long life, good safety performance and low cost,...
Air nozzles are the key constructional elements of the lithium battery films drying cabinets and have a great effect on drying efficiency and effectiveness even the running of whole drying system. The steady state flow fields of three kinds of air nozzles are obtained through numerical simulation method. This paper provides an investigation of the resistance characteristics and flow equalization characteristics...
The battery system is the key component in a full electric or a plug-in electric vehicle. Important aspects are cost, package, safety, performance and durability. With a modular design the fundamental requirements can be fulfilled at a sub-level. Providing easy and appropriate interfaces all special issues can be solved efficient on system level. Such a module can be mass produced even in a time where...
For the great need of the high power output and high capacity power battery of electric vehicle, this article presents a method which classify the battery by EIS, and this method can get more information about the dynamics and electrode interface structure than the traditional ones. In order to make it closer to actual production, improvement was made for the disadvantages of the long time consuming...
This paper presents a careful study related to a more efficient energy management between lithium battery (with rated voltage of 24V) and Ultracapacitors (UC) for Hybrid Electric Vehicle (HEV) applications. This association is due to the present trend in the field, knowing that the major drawback of the HEV is the autonomy problem. Thus, using the Hybrid energy source (such as UC + battery) and with...
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