Articles techniques et présentations

This study presents a model for simulating a subsurface pumped-hydro energy storage (battery) system. The model captures the coupling between fluid flow in an oil and gas type wellbore connected to a large hydraulic fracture embedded in a low-permeability reservoir. By integrating ... En savoir plus

Our customer LeydenJar Technologies creates the world’s most energy dense battery anodes, enabling Li-ion batteries that are powerful, small and fast charging. Prime examples of applications include electronic devices and e-mobility. The anodes are made of silicon, and are produced with ... En savoir plus

Lithium ion battery electrodes are porous composite film made up of two or three different types of solid material. Typically using the fabrication of the electrode, the solid powders (active material, binder and in most cases a conductive active) are dispersed in a solvent like NMP and ... En savoir plus

The discharge of an alkaline Zn anode involves the conversion of Zn metal to solid ZnO through the zincate ion. With the heterogeneous dissolution of Zn and mobility of zincate in the electrolyte, complex radial distributions of Zn and ZnO have been observed to occur in the anodes of ... En savoir plus

This case study explains the work we undertook where we modelled an Induction heating system in COMSOL Multiphysics simulation software to correlate the simulation results with actual measurements. The simulated results were cross checked with several different measurement scenarios, ... En savoir plus

锂离子电池在便携式电子设备领域占据主导地位，并显著推动了电动汽车的商业化进程。当前全球研发重点集中于开发具有高能量密度、快速充放电能力、高功率输出、低成本及高安全性的电池系统。在材料选择中，机械强度的耐久性与长周期循环的结构完整性成为关键评价指标。锂离子电池内部存在显著的电化学-力学耦合行为，表现为大变形、塑性流动、裂纹扩展与疲劳等现象，进而引起电极剥离、孔隙闭合以及副反应加速等多种失效模式。其中，正极颗粒的破裂等力学-电化学退化机制是限制锂离子电池性能的主要因素之一，因此深入研究正极材料在多场耦合条件下的响应机制，对实现下一代高能量密度电池至关重要。 钴酸锂 ... En savoir plus

The increasing demand for electrochemical energy storage (EES) in stationary applications underscores the urgent need for advanced battery technologies. Among these, zinc-based systems, particularly rechargeable zinc-air flow batteries (RZAFBs), are gaining attention due to their ... En savoir plus

Flash lamp annealing (FLA) is a modern annealing technique in the range of milliseconds, which is predestinated for roll-to-roll fabrication of battery electrodes. All-solid-state batteries are the next generation battery concepts that are currently being envisaged among both the ... En savoir plus

Of utmost importance in appliance design and manufacture are the features for protection from fire and for personal safety. Appliance engineers are continually in pursuit of better,longer-life appliances that will provide both lower cost to the consumer and lower energy consumption. ... En savoir plus

Electric vehicles (EVs) powered by rechargeable lithium-ion batteries (LIBs) have been developed as a replacement for the conventional internal-combustion-engine automobiles. Research has been yielding a stream of improvements to the traditional LIB technology, focusing on energy and ... En savoir plus