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... is the use of Lithium-Ion batteries mainly in the types of: Lithium-Iron Phosphate (reduced risk of thermal runaway), Lithium Nickel Manganese Cobalt (longer life cycle) and Lithium Manganese Oxide (higher charging rates and thermal stability but with lower life span). An overview of the available Li-ion solutions on the market are summarized in Fig. 3. The open circuit voltage of Lithium-Ion cells has a typical value between 3.2 and 3.9 V, the cells are series connected to get modules, that are the smallest group of cells that can be isolated from the on-board electric network during operation and maintenance. Several modules series and/or parallel connected, according to the ...
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Citations
... Section 5 concludes the paper. Figure 2. The volumetric and gravimetric energy density of various battery chemistries [8] In the past, lead acid batteries were commonly used for shipboard applications due to their low self-discharge rate, high response time, and low cost. However, drawbacks such as low energy density and a complex decommissioning process due to the presence of lead have resulted in a need for alternative solutions. ...
... The architecture of the shipboard electric power distribution with DC bus[8] ...
... The storage units require proper allocation and specific battery management system (BMS) [3], [4]. In the field of electrification of naval propulsion systems, the SEABAT 1 project deals with the development of modular storage systems for pure electric vessels [5]. The modular approach is very attractive and produces remarkable features. ...
In electric naval applications, battery storage management plays a key role. The second-life battery use is a fundamental part of the sustainable development of these waterborne transport systems. The article deals with the perspective and solutions of the second-life storage battery systems from the electric ship traction area. This paper presents an overview of the topic of second-life use, application, and future direction with a special focus on battery systems from electric propulsion ships. In particular, a modular converter-battery approach in the storage system structure arrangement is considered. The modular battery storage approach in electric naval propulsion applications is the target of SEABAT project. This proposed solution allows both controls of the electrical quantities of the storage output and monitoring of the battery’s electrical parameters to always have its health status available. The advantages of the modular multilevel battery-converter structure developed within the SEABAT project towards second-life use are presented and evaluated, leading to an estimated cost saving of 35% during the whole life time of the batteries. Besides, the integration of multiple battery technology with different degradation state is enabled. Moreover, the power converter features for second-life applications are explored and discussed. Furthermore, the manufacturing and disassembly processes aspects of the SEABAT converter-battery system (CBS) are also investigated to validate the effectiveness of the proposed modular storage solution. The SEABAT project targets a 246 kWh demonstrator with a 1000 V output.
