P4-021
Volvo Cars is going all in on electrification with one of the most ambitious targets of all legacy car manufacturers; to phase out internal combustion and become fully electric by 2030. This mindset has enabled the re-direction of research and development towards focusing on fully electric vehicle (EV) platforms. The shift towards EVs comes with […]
P2-085
Recently, the first commercial sodium-ion cells have become available for consumers. Given the exciting announcements by several producers of such battery cells [1], it is of great interest to analyze these first commercial sodium-ion cells in order to understand which materials are used, how these cells are designed, and how they perform in comparison with […]
P5-073
The growing importance of electromobility and the resulting variety of battery models are driven by a strong focus on competitiveness and cost-effective solutions for automotive manufacturers. However, the end-of-life phase of batteries poses a challenge as efficient and environmentally friendly dismantling is necessary to recover valuable resources and minimize potential environmental impacts. In this context, […]
P3-043
Electrochemical impedance spectroscopy (EIS) is a widely recognized method used to evaluate the electrochemical characteristics of batteries. This technique demonstrates a strong relationship between impedance and battery states, such as temperature, state of health (SOH), and state of charge (SOC). EIS promises much more than simply cell-level analysis. Because of its non-destructive characteristics, its use […]
P1-013
Lithium-ion batteries (LIBs) have become ubiquitous in modern technology, powering our devices and vehicles. Part of the design of robust and high-performance battery chemistries focuses on electrolytes, exerting direct influence on various aspects crucial for resulting performance and safety. These aspects encompass broad electrochemical stability and formation of effective solid-electrolyte interphase (SEI) and cathode electrolyte […]
P1-051
Silicon has garnered significant interest as an anode material in lithium-ion batteries due to its high practical capacity of around 3579 mAh.g-1 at Li15Si4 phase.[1] However, its notable volume expansion of approximately 300% in a fully intercalated state leads to particle pulverization, the dynamic formation of a solid electrolyte interface (SEI), and a subsequent loss […]
P3-007
In battery cell development and design, the attainment of fast-charging capability is regarded as a significant challenge, especially when it must be surmounted without compromising performance indicators such as cost and energy density. Metal plating (e.g. lithium-plating for lithium-ion cells) has proven to be the limiting factor when aiming to achieve fast charging goals. Extensive […]
P1-024
Lithium-ion batteries (LIB) are becoming increasingly important in energy storage, electric vehicles and portable electronics due to their high energy density and long cycle life. The demand for more environmentally friendly LIB chemistries and lower production costs brought cobalt free cathode materials to the forefront of battery research. LiNi0.5Mn1.5O4 (LNMO) is a potential Co-free high […]
P2-021
The heat flow gained from calorimetric measurements provides a good impression of the condition of a battery cell. By taking a closer look, a distinction between endothermic and exothermic reactions can be made. While the irreversible parts of the heat flow are mainly related to the internal resistance and the associated ohmic losses, the reversible […]
P3-002
Lithium ion and advanced sensing techniques are improving continuously, to respond current demands and to evaluate different states of a battery which can not be evaluated using conventional measurements. In this sense, in this abstract advanced LiNiMnA/GrSi cell instrumented with strain and impedance spectroscopy is evaluated. The cell is built with a high voltage (22 […]