Li-Ion Cell Safety Monitoring Using Mechanical Parameters: Part I. Normal Battery Operation

Li-Ion Cell Operation at Low Temperatures

Controlling Factors of Cell Design on Large-Format Li-Ion Battery Safety during Nail Penetration

In this paper, we investigate the controlling design parameters of large-format Li-ion batteries on safety while undergoing nail penetration. We have identified three critical design parameters that control the safety during the nail penetration process: nail diameter (Dnail), single sheet foil area (Afoil), and cell capacity (Qcell).Using commercial AutoLionTM software, we have investigated tw...

High capacity Li ion battery anodes using ge nanowires.

Ge nanowire electrodes fabricated by using vapor-liquid-solid growth on metallic current collector substrates were found to have good performance during cycling with Li. An initial discharge capacity of 1141 mA.h/g was found to be stable over 20 cycles at the C/20 rate. High power rates were also observed up to 2C with Coulombic efficiency > 99%. Structural characterization revealed that the Ge...

Li-Ion Battery Charger solution using the MSP430

Rechargeable batteries are now widely used as the power supply source in many portable electronic equipments such as Laptops, cell phones and digital cameras. Charging circuits depend on the batterys chemistry and the most popular rechargeable batteries are Nickel-Cadmium (NiCd), Nickel-Metal-Hydride (NiMH), and Lithium-Ion (Li-Ion). This application report discusses the method to charge a Li-I...

Li-Ion Battery SoC Estimation Using a Bayesian Tracker

Hybrid, plug-in hybrid, and electric vehicles have enthusiastically embraced rechargeable Li-ion batteries as their primary/supplemental power source of choice. Because the state of charge (SoC) of a battery indicates available remaining energy, the battery management system of these vehicles must estimate the SoC accurately. To estimate the SoC of Li-ion batteries, we derive a normalized state...