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Spot Welding Machine for Li-ion Battery Cells
Martinček, Martin
This article describes creation of spot welding machine prototype. Spot welding enables joining bigger number of Li-ion cells in order to create higher energy storage. Main objective of this article is to design diagrams and algorithms for the spot welding machine. Requirements to regulate current and minimize heat stress on battery cells are implemented in the solution.
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Development and design of a modular battery box.
Rozinek, Josef ; Buday, Vladimír (referee) ; Porteš, Petr (advisor)
Tato práce se zabývá problematikou battery packů. V první části popisuje návrh battery packu z hlediska volby baterií, jejich tvaru, velikosti, typu a konfigurace zapojení. Dále uvádí vliv těchto charakteristik na výkonnost battery packu a jeho spolehlivost. Zabývá se problematikou termálního managementu battery packů a jeho vlivu na životní cyklus baterií. V druhé části se zabývá praktickým návrhem konceptu battery packu pro Lithium-polymerové baterie. Kalorimetricky je zde zjištěno množství produkovaného tepla při vybíjení, které je poté využito v CFD simulaci chlazení článku.
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Charging station NiMh battery packs
Pochylý, Vít ; Otáhal, Alexandr (referee) ; Šteffan, Pavel (advisor)
The aim of this bachelor thesis is to get acquainted with the characteristics of rechargeable accumulator batteries and their charging and on the basis of this obtained information to design a charger of larger number of batteries. The design and later construction of the charger will be designed for 6 battery packs, which consist of six NiHM rechargeable cells. This means that the charger will be able to charge 36 of these cells. The main advantage will be the control of the charger using a microcontroller, which will allow the appropriate selection of the charging cycle, display of information and control by buttons.
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Battery pack for an electric car
List, Jaroslav ; Kalivoda, Milan (referee) ; Polzer, Aleš (advisor)
Thesis deals with the design of a battery box with lithium-ion technology, for the largest possible driving range of the BUT SuperEL II electric car. Based on the analysis of the electric vehicle available space and the parameters of the electronic system, the maximum size of the entire set of 84s130p batteries was designed. 18650 cells with NMC technology were selected due to the very high gravimetric and volumetric density, which reaches 274 Wh/kg and 564 kWh/m3. The total nominal capacity of the designed battery boxes in the electric car is 138 kWh. The total gravimetric energy density of the designed box is 215.6 Wh/kg. It allows the electric car to reach the theoretical range with a consumption of 14 kWh/100 km of almost 1000 km. The individual battery modules of the battery box are controlled for optimal operating conditions by means of a BMS. The whole set is divided into 5 battery boxes. These boxes are manufactured using the technology of bent welded sheets from aluminum alloy EN AW 1050A and steel 1.4301. FEM analyzes were performed to verify the mechanical strength of the designed structure. The work also deals with the design of battery modules and their connection.
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Electronic supercharger for Formula Student
Matoušek, Patrik ; Šebela, Kamil (referee) ; Janoušek, Michal (advisor)
The main goal of this diploma thesis is to verify the application of the Electric compressor in the Formula Student monopost category. Diploma thesis is focused on the computational model and analysis of the combustion engine in the GT-POWER software. Outputs from this calculation are used for the design of the main parameters of battery pack. In the final part of the thesis, the monoposts with ordinary turbocharger and with the electric compressor are compared in the lap time simulation in the Autocross discipline.
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Electric Vehicle Acupack
Huk, Vojtěch ; Šebela, Kamil (referee) ; Janoušek, Michal (advisor)
This bachelor thesis deals with electric vehicle batteries. The battery itself consists of many structural parts that can be made from a variety of materials and assembled in many ways. The first part of this thesis provides an overview of the characteristics a battery should have to achieve the requirements placed on it, and the methods available on the market to meet these requirements. The second part describes in detail the individual components of the battery, including their function and design. Special attention is given to battery cells, describing and comparing the technologies used in them, including graphical representation of this comparison.
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Spot Welding Machine for Li-ion Battery Cells.
Martinček, Martin
This article describes creation of spot welding machine prototype. Spot welding enables joining bigger number of Li-ion cells in order to create higher energy storage. Main objective of this article is to design diagrams and algorithms for the spot welding machine. Requirements to regulate current and minimize heat stress on battery cells are implemented in the solution.
|
|
|
Electronic supercharger for Formula Student
Matoušek, Patrik ; Šebela, Kamil (referee) ; Janoušek, Michal (advisor)
The main goal of this diploma thesis is to verify the application of the Electric compressor in the Formula Student monopost category. Diploma thesis is focused on the computational model and analysis of the combustion engine in the GT-POWER software. Outputs from this calculation are used for the design of the main parameters of battery pack. In the final part of the thesis, the monoposts with ordinary turbocharger and with the electric compressor are compared in the lap time simulation in the Autocross discipline.
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Battery pack for an electric car
List, Jaroslav ; Kalivoda, Milan (referee) ; Polzer, Aleš (advisor)
Thesis deals with the design of a battery box with lithium-ion technology, for the largest possible driving range of the BUT SuperEL II electric car. Based on the analysis of the electric vehicle available space and the parameters of the electronic system, the maximum size of the entire set of 84s130p batteries was designed. 18650 cells with NMC technology were selected due to the very high gravimetric and volumetric density, which reaches 274 Wh/kg and 564 kWh/m3. The total nominal capacity of the designed battery boxes in the electric car is 138 kWh. The total gravimetric energy density of the designed box is 215.6 Wh/kg. It allows the electric car to reach the theoretical range with a consumption of 14 kWh/100 km of almost 1000 km. The individual battery modules of the battery box are controlled for optimal operating conditions by means of a BMS. The whole set is divided into 5 battery boxes. These boxes are manufactured using the technology of bent welded sheets from aluminum alloy EN AW 1050A and steel 1.4301. FEM analyzes were performed to verify the mechanical strength of the designed structure. The work also deals with the design of battery modules and their connection.
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|
|
Charging station NiMh battery packs
Pochylý, Vít ; Otáhal, Alexandr (referee) ; Šteffan, Pavel (advisor)
The aim of this bachelor thesis is to get acquainted with the characteristics of rechargeable accumulator batteries and their charging and on the basis of this obtained information to design a charger of larger number of batteries. The design and later construction of the charger will be designed for 6 battery packs, which consist of six NiHM rechargeable cells. This means that the charger will be able to charge 36 of these cells. The main advantage will be the control of the charger using a microcontroller, which will allow the appropriate selection of the charging cycle, display of information and control by buttons.
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