Improvement of lithium-ion rechargeable battery (LIRB) for Electric Ships

Abstract The rapid improvement of lithium-ion rechargeable battery (LIRB) has given a powerful impetus to the development of environmentally friendly, powerful and universal for use on ships and underwater vehicles. The practice of building electric ships for many years has confirmed the effectiveness of electric propulsion for many types of vessels. Organically, electric propulsion fits into icebreakers and those vessels whose operation is associated with increased maneuvering modes and variable loads on propellers. LIRB has been actively used on ferries operating in a wide range of outdoor temperatures. On diesel-electric submarines (DES), the use of rechargeable batteries is traditional and is the main source of electricity. The subsequent development of new sources of electricity, the improvement of power semiconductor devices and microelectronics has led to the successful implementation of ideas for the construction of fully electric offshore facilities.

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Almacenamiento energético frente al inminente paradigma renovable: el rol de las baterías ion-litio y las perspectivas sudamericanas/Energy storage towards the imminent renewable paradigm: the role of ion-lithium batteries and South American perspectives

Letras Verdes Revista Latinoamericana de Estudios Socioambientales ◽

10.17141/letrasverdes.23.2018.3055 ◽

2018 ◽

pp. 108-132 ◽

Cited By ~ 1

Author(s):

Martin Ariel Kazimierski

Keyword(s):

Electric Propulsion ◽

Fossil Fuels ◽

Lithium Ion ◽

Energy System ◽

South American ◽

Potential Market ◽

Wide Range ◽

New Energy ◽

A Current

El actual sistema energético mundial se caracteriza por una alta dependencia de los combustibles fósiles, un paradigma que empieza a encontrar dificultades en tanto se agotan las reservas existentes y aumentan los costos ecológicos. Así, la incorporación de energías renovables, su generación en forma distribuida y el crecimiento del parque automotor eléctrico, se presentan como la triada más prometedora en la conformación de un nuevo paradigma más eficiente y sustentable. Este artículo se centra en la importancia que adquieren los acumuladores energéticos ante este panorama, principalmente por su rol en la estabilización de las redes y posibilitar el autoconsumo y la propulsión eléctrica. Identifica en las baterías de ion-litio un abanico de posibilidades para Sudamérica, que posee las reservas más importantes de litio en el mundo, incorporando la idea del desarrollo dentro del nuevo patrón energético y en un mercado actual y potencial de grandes dimensiones. Abstract The current global energy system is characterized by a high dependence on fossil fuels, a paradigm that begins to encounter difficulties as existing reserves are depleted and ecological costs increase. Thus, the incorporation of renewable energies, their generation in a distributed form and the growth of the electric motor park, are presented as the most promising triad in the conformation of a new, more efficient and sustainable paradigm. This article focuses on the importance that energy accumulators acquire in this scenario, mainly due to their role in stabilizing networks and enabling self-consumption and electric propulsion. It identifies lithium-ion batteries with a wide range of possibilities for South America, which has the most important reserves of lithium in the world, incorporating the idea of development within the new energy pattern and in a current and potential market of large dimensions.

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PPU for a small, low power and low cost EPS

MATEC Web of Conferences ◽

10.1051/matecconf/201930407004 ◽

2019 ◽

Vol 304 ◽

pp. 07004

Author(s):

Spiridon Savvas ◽

Pavlos Ramnalis ◽

Alexandros Manoudis

Keyword(s):

Low Power ◽

Hollow Cathode ◽

Electric Propulsion ◽

High Efficiency ◽

High Reliability ◽

Propulsion System ◽

Special Focus ◽

Successful Implementation ◽

Processing Unit ◽

Wide Range

The objective of this paper is to present the design of the Power Processing Unit (PPU) of the Microsatellite Electric Propulsion System (MEPS) program currently being developed at Elegant Bread Board (EBB). High efficiency, small size and weight and high reliability are the main parameters that special focus is given. The propulsion system of MEPS consists of two small size and low power (up to 300W) Thruster Units (TUs) each one composed of a Hall Effect Thruster and a Cathode, a single Propellant Management and Tank Assembly (PMA/PTA) and a single PPU. The PPU designed for the EBB phase has no redundancy, is fully flexible and capable of driving two different TU types (Rafael’s CAM-200 coupled with Rafael’s Heaterless Hollow Cathode (RHHC) and SITAEL’s HT100 coupled with SITAEL’s Heated Hollow Cathode (HC1)). This paper illustrates the core design requirements and important aspects on which the design was based. Preliminary results obtained from the coupling tests on the critical parts developed at Bread Board (BB), which contributed to the current design are also briefly depicted. Last but not least, the future development steps of the program that can become the driving factor for the successful implementation of an easily adjustable PPU compatible with a wide range of low power Electric Propulsion Systems (EPSs) are demonstrated.

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Growth and Studies of Li (Mn, Co) Oxides for Battery Electrodes

MRS Proceedings ◽

10.1557/proc-606-223 ◽

1999 ◽

Vol 606 ◽

Cited By ~ 2

Author(s):

S. Nieto-Ramos ◽

M.S. Tomar ◽

R.S. Katiyar

Keyword(s):

Spin Coating ◽

Annealing Temperature ◽

Lithium Ion ◽

Rechargeable Batteries ◽

Rechargeable Battery ◽

Oxide Materials ◽

Synthetic Route ◽

X Ray Diffraction ◽

X Ray ◽

Solution Route

AbstractThere is interest in lithium intercalation oxide materials for cathodes in rechargeable batteries. We have synthesized LiMOx, (where M = Mn, Co) by a less expensive solution route. Reagent grade acetates or hydroxides as precursors for lithium, manganese, and cobalt, respectively, with methoxy ethenol and acetic acid as solvents were used. Powders with different compositions were achieved at annealing temperature below 700 °C. Thin films were deposited by spin coating. X-ray diffraction, Raman spectroscopy, and impedance spectroscopic results are presented. These studies indicate that this synthetic route is suitable to produce good quality lithium-based oxides useful for cathode in lithium-ion rechargeable battery.

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A Fast Method of Identifying Rechargeable Batteries Condition and Defects

Multidisciplinary Aspects of Production Engineering ◽

10.2478/mape-2018-0038 ◽

2018 ◽

Vol 1 (1) ◽

pp. 301-305

Author(s):

Krzysztof Kuliński ◽

Andrzej Nowrot

Keyword(s):

Electrical Impedance ◽

Electrochemical Cell ◽

Lithium Ion ◽

Rechargeable Batteries ◽

Diagnostic Process ◽

Rechargeable Battery ◽

Fast Method ◽

Cell Type ◽

Lithium Ion Cells ◽

Long Time

Abstract The paper presents fast method of identifying industrial and general use rechargeable batteries condition and defects exemplary lithium-ion cells. The proposed method is based on measuring a internal battery electrical impedance for selected frequency points and the next the results are compare with reference characteristics. Diagnostic process is performed for a few minutes when the battery is charging or discharging. So far used, the most popular methods require controlled charging and discharging cells to determine approximately of their capacity and need a long time of the diagnostic process (about few hours to over a dozen hours). The new method allows the dramatically reduction of measurement time and in effect reduces financial work costs of service. The paper shows a various setup systems with commonly use RLC impedance bridges were used in the research. The analysis of measurements allowed to determine the specific spectral function, which indicates rechargeable battery condition. Moreover, it is also possible to apply the obtain method to another electrochemical cell type.

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Analysis of the Effect of the Variable Charging Current Control Method on Cycle Life of Li-ion Batteries

Energies ◽

10.3390/en12153023 ◽

2019 ◽

Vol 12 (15) ◽

pp. 3023 ◽

Cited By ~ 4

Author(s):

In-Ho Cho ◽

Pyeong-Yeon Lee ◽

Jong-Hoon Kim

Keyword(s):

Service Life ◽

Control Method ◽

Lithium Ion ◽

Rechargeable Batteries ◽

Current Control ◽

Product Price ◽

Industrial Sectors ◽

Lithium Ion Cells ◽

Wide Range ◽

Charging Current

Applications of rechargeable batteries have recently expanded from small information technology (IT) devices to a wide range of other industrial sectors, including vehicles, rolling stocks, and energy storage system (ESS), as a part of efforts to reduce greenhouse gas emissions and enhance convenience. The capacity of rechargeable batteries adopted in individual products is meanwhile increasing and the price of the batteries in such products has become an important factor in determining the product price. In the case of electric vehicles, the price of batteries has increased to more than 40% of the total product cost. In response, various battery management technologies are being studied to increase the service life of products with large-capacity batteries and reduce maintenance costs. In this paper, a charging algorithm to increase the service life of batteries is proposed. The proposed charging algorithm controls charging current in anticipation of heating inside the battery while the battery is being charged. The validity of the proposed charging algorithm is verified through an experiment to compare charging cycles using high-capacity type lithium-ion cells and high-power type lithium-ion cells.

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