Articles techniques et présentations

As the most important component of the entire lithium-ion battery, the electrodes, their design which ultimately determines the quantity and speed of lithium storage, directly affects the capacity, power density, and energy density of the battery. The electrochemical and thermal ... En savoir plus

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

Lead-acid battery is a reversible battery used generally automotive industry. A lead-acid battery cell contains two electrodes with pasted active material, an electrolyte and a separator. Electrode transmits current with electrons whereas electrolyte transmits current with ions. A grid ... En savoir plus

Over time, rechargeable batteries degrade and eventually stop working. You see some combination of declining capacity, rapid self-discharge, and reduced power. Degradation mode depends on battery design, but also on the application. Often, multiple physical processes contribute to ... En savoir plus

Climate change and concerns over the reliable supplies of hydrocarbons are aiding in the focus on Electric Vehicles (EVs) and Hybrid Electric Vehicles (HEVs). The Lithium-ion battery as a better solution for energy storage in automobile applications is briefly introduced. Adverse effects ... En savoir plus

In the fast growing but also highly competitive market of battery-powered power tools short charging times are essential to achieve customer acceptance and to create unique selling propositions. To prevent loss of performance and fast charging capability due to cell aging, the knowledge ... En savoir plus

This research proposed a novel battery thermal management system that utilized the heat pipe coupling composite fin (HPCF) which consisted of aluminum fin, phase change material and liquid cooling tube. By using battery module, heat transfer module and CFD module of COMSOL, the ... En savoir plus

Modeling of mass transport is an important step in evaluating lithium-ion battery electrolytes and understanding cell performance. For high-power applications, concentration gradients in the electrolyte lead to limiting currents, which limit the power-density of the battery. The model ... En savoir plus

Sodium/metal chloride storage batteries, used in hybrid propulsion applications, provide high energy and power densities safely and reliably. To understand the dynamics of electrochemical cycling, a high-temperature sodium/ferrous chloride storage cell was modeled in two dimensions. The ... 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