Semco University – All about the Lithium-Ion Batteries

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Analyze common bulging reasons for lithium batteries – Semco University

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Introduction If lots of lithium batteries that are bulging, it is possible that the voltage of your commonly used battery charger does not match the lithium-ion battery, and it is recommended to replace it. In addition, if the lithium-ion battery is not used for a long time, there will be a problem of bulging (Bulging Reasons for Lithium Batteries). Lithium battery is a rechargeable […]

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Aging of NCA Lithium Batteries – Semco University

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Introduction Calendar aging of NCA lithium batteries is investigated by storing commercial 18650 cells with NCA cathode and graphite anode at different states of charge and temperatures. Calendar aging comprises all aging processes that lead to a degradation of a battery cell independent of charge-discharge cycling. It is an important factor in many applications of

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Function and components of battery pack & BMS – Semco UNiversity

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Introduction Lithium-ion battery packs for electric vehicles have large battery capacity, many series and parallel connections, complex systems, and high-performance requirements such as safety, durability, and power. In addition, the safe working area of the lithium-ion battery pack (Function and Components of Battery Pack) is limited by temperature and voltage. If it exceeds the allowable

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Cell BMS PACK failure analysis – Semco University

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Introduction The power battery system is usually composed of battery cells, battery management system, Pack system including functional components, wiring harness, structural parts and other related components. The failure mode of the power battery system can be divided into three different levels of failure modes, namely the cell failure mode, the Cell BMS Pack Failure

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Key points of lithium ion battery production process control – Semco university

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Introduction: Lithium Ion Battery Production Process in sets of electrodes and then assembled in cells. Active material is mixed with polymer binders, conductive additive, and solvents to form a slurry that is then coated on a current collector foil and dried to remove the solvent and create a porous electrode coating. There is no single lithium-ion

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How the three electrode system works – Semco University

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Introduction The three electrode system consists of a working electrode, counter electrode, and reference electrode. The reference electrode’s role is to act as a reference in measuring and controlling the working electrode potential, without passing any current. The reference electrode should have a constant electrochemical potential at low current density. Electrodes, the working, reference, and auxiliary make up the modern three

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How to choose a high-quality electric vehicle charger – Semco University

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Introduction With the development of science and technology and the improvement of people’s living standards, digital products have become a necessity in people’s lives. Because of the large demand, there are many kinds of products on the market, and the quality is also uneven. So how should we identify the quality of the charger? Let

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Electric vehicle maintenance practical dry goods – Semco University

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Introduction As electric vehicle maintenance (and electrification technologies) become more popular with consumers and ecosystem players, there is a growing focus on ethical and sustainability issues in operations and processes across the value chain. From mining practices to battery cascade utilization, ecosystem players hope to double down on sustainability by implementing more ethical standards throughout

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Are batteries afraid of the cold in winter? – Semco university

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Introduction Do you often let your car “test” in danger? In fact, it’s cold, and it’s easy to “freeze” the battery when going out on an electric bike. Therefore, if you want to be more secure when you go out, you need to know about battery antifreeze (batteries afraid of the cold in winter). With

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Model S Plaid battery system design – Semco University

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Introduction Engineers made some dismantling and comments on the battery system design and power system of Model S Plaid on the tubing. I would like to sort out this content in two phases. Since the module is not dismantled here, the main information that can be obtained includes: the design idea and electrical design of

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