CFP-5325
Owing to its high capacity, attractive operating voltage, natural abundance, and environmental friendliness, silicon (Si) is a promising anode active material (AAM) for next generation Li-ion batteries (LIBs). However, the Si particle volume expansion during battery operation and low conductivity hindered its commercialization. Despite the Si availability, most Si-based AAMs are prepared as nanostructured particles, […]
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 […]
CFP-5331
Self-discharge in battery cells remains an important issue in the storage of electrical energy. Recently, Jeff Dahns / Michael Metzgers group discovered that the impurity dimethyl terephthalate (DMT), which leaches from the PET-based fixing tape, used to hold the cell stack in place, causes self-discharge in lithium-ion batteries. Here, we report the leaching of 2,4-di-tert-butylphenol […]
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-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-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-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-5340
Aging can drastically reduce the performance of lithium-ion batteries. Hence, the aging behavior needs to be tested which is mostly done on the laboratory scale. These tests are usually performed in a climate chamber, ensuring a constant ambient temperature. In application, however, the temperature conditions can differ greatly. Due to the heat generation of the […]
CFP-5347
Lithium-ion battery characteristics are highly non-linear in nature which presents numerous challenges in their design and development for commercial applications. Accurate battery cell models that will emulate their performance characteristics shall immensely contribute to development of rapid virtual prototyping methods, which helps to understand the battery performances (module/pack levels) under different working conditions and thereby […]
CFP-5348
The increasing demand for sustainable mobility challenges the industry to implement high-energy lithium-ion batteries (LIBs) that meet the long-range requirements of electric vehicles. To meet these needs, materials with higher specific energy than conventional anode materials are being increasingly adopted in LIBs. Silicon (Si), with a maximum theoretical capacity of 3579 mAh/g, offers about ten […]