from chemistry to pack
We all know the benefits but what are the challenges of adding silicon to graphite anodes? Benefits Just to be sure, let’s list the benefits: This post has been built based on the support of and sponsorship from: illumion, Custom Power, Quarto Technical Services, Eatron Technologies and About:Energy Challenges What are the technical challenges of adding silicon to graphite anodes? Volumetric Expansion … Read more
Graphite remains the most widely used anode material in lithium-ion batteries, and the initial formation of the solid electrolyte interphase (or SEI) largely dictates the long-term performance of commercial cells. In this post we take a look at the work of WMG, University of Warwick and James Durrans & Sons Limited. A preprint copy of … Read more
AION Engineering INC What is the N/P Ratio? The N/P ratio refers to the ratio between the effective capacity of the anode (negative electrode, N) and the cathode (positive electrode, P). In simple terms, it compares how much lithium the anode can store versus how much the cathode can provide. For a safe and reliable … Read more
Isotropic graphite is designed to reduce the stress from Li+ insertion and extraction [1]. Making it more stable and thus improving lifetime. By introducing isotropic technology, lithium ions can be inserted into the graphite channel from any angle, which in turn greatly increases the charging speed. CATL [2] Wu et al [1] describe the process … Read more
Authors: Ionworks For several decades, the Doyle-Fuller-Newman model has been the cornerstone of computational battery modeling, design, and optimization. Since the model was developed based on an assumption of Fickian diffusion in the solid active material particles, the equilibrium state in a DFN model is an electrode of compositionally homogeneous particles. While this is appropriate … Read more
Author: rhd instruments GmbH & Co. KG Introduction As the solid-state battery field matures and more attention is turned to detailed characterization of interfaces and individual redox processes, the need for a suitable reference electrode (RE) system emerges, in order to enable three-electrode measurements [1, 2, 3]. While the use of standardized REs is well-established … Read more
In battery cells we see the use of natural and synthetic graphite in the anode. What are the differences and the advantages / disadvantages. Natural graphite anode has the advantages of lower cost, high capacity and lower energy consumption compared with the corresponding synthetic anode. But the latter performs much better in electrolyte compatibility, fast-charge … Read more
CompreCell Pouch x TekScan Sensor Author: rhd instruments GmbH & Co. KG Post based on an application note for which that and a full summary are now available: rhd-instruments.de magazine Introduction The pressure applied to pouch cell batteries is key to their performance and cycle life [1, 2, 3, 4]. One of two modes of … Read more