CFP-5338
The cell finishing processes of lithium-ion batteries (soaking, formation, degassing, aging, end-of-line testing, grading) are time-, energy- and cost-intensive processes during the cell production. Common formation methods consist of several relatively slow constant charging and discharging cycles as it increases the probability of good performance of the Solid Electrolyte Interphase (SEI) on the negative electrode. […]
CFP-5329
Battery cell has become an essential component for E-mobility and Energy Storage. Despite the ongoing efforts and improvements, scaling of battery cell production in Europe is continued to be challenged by cost and seeking for more optimized solutions is critical to the success of building a competitive and resilient supply chain. Based upon decade of […]
CFP-5342
Cutting out electrodes sheets is an important process step in the production of automotive lithium ion batteries. Laser cutting is an innovative way to singularise electrode sheets. This process combines the conventional notching of the current collector and cutting out electrode sheets as well as provides a high cutting flexibility. However, this novel process also […]
CFP-5337
The lithium sulfur (Li-S) cell chemistry is promising due to the high specific capacity of its active materials resulting in high specific energy cells[1,2]. Consequently, this battery type is notably suitable for lightweight applications such as aviation[3]. Sulfurized polyacrylonitrile (SPAN) is one of the currently highly prominent materials offering the advantages of the active material […]
CFP-5334
Join UL Solutions experts covering the newly published test protocol, UL 9540B, the Outline of Investigation for Large-Scale Fire Test for Residential Battery Energy Storage Systems (BESS). UL 9540B will address the gap in additional risk and considerations around BESS for residential applications. This test method was developed to address concerns specifically identified by various […]
CFP-5339
NaSICON-type materials with the general formula Na3MM’(PO4)3 (i.e., M, M’: transition metals) have shown tremendous interest thanks to their good electrochemical properties, high ionic conductivity, and high structural/ thermal stabilities. Nevertheless, NaSICONs suffer from low electronic conductivity. which is generally mitigated by doping with conductive elements, carbon-coating, and reduction of particle size. In this study, […]
CFP-5335
The recent popularity of electric vehicles (EVs) has led to significant advancements in developing Li-ion batteries, especially due to their high energy densities, long life, and low self-discharge rates. These batteries have an optimal operating temperature range, usually between 293 K and 313 K, and a maximum temperature difference of 5 K. A sluggish performance […]
CFP-5336
Battery technology is rapidly evolving and continuously improves costumer experience of battery electric vehicles in terms of driving range, charging time, lifetime, and vehicle cost. Connecting high energy and high-performance properties results in new requirements for the battery thermal management. An optimal thermal management is essential to keep the battery cells within their ideal temperature […]
CFP-5341
Numerous deficiencies of the conventional BMS impair the development of an efficient and long-life battery system. The information required for BMS is restricted either to measurement or indirect estimation. The latter might be erroneous due to the accumulated error in the measurement and over-simplified models to achieve high computational efficiency. In particular, the measurement is […]
CFP-5323
Over the past three decades, the energy density of lithium-ion batteries (LIB) has steadily increased to meet the growing demand for portable energy storage. This increase in energy density has made LIBs a potential safety hazard. In the worst case, a so-called thermal runaway in the LIB can lead to the destruction of the entire […]