Thermal modelling of new Li-ion cell design modifications

Design and Analysis of New Level Shifter With Gate Driver for Li-Ion Battery Charger in 180nm CMOS Technology

In this work, the design and analysis of new Level Shifter with Gate Driver for Li-Ion battery charger is proposed for high speed and low area in 180nm CMOS technology. The new proposed level shifter is used to raise the voltage level and significantly reduces transfer delay 1.3ns (transfer delay of conventional level shifter) to 0.15ns with the same input signal. Also, the level shifter with g...

Modelling Li Ion Battery Electrode Properties

In recent years, interest in using lithium-ion (Li-ion) batteries as power sources for a wide range of devices (particularly portable devices) has grown significantly. There is thus a real need to understand at a fundamental level a wide range of battery performance criteria (energy density, power density, safety, durability, cost). Our working group considered how to model the fundamental elec...

Analysis of Electrochemical and Thermal Behavior of Li-Ion Cells

This paper seeks to gain a better understanding of the thermal behavior of Li-ion cells using a previously developed twodimensional, first principles-based thermal-electrochemical modeling approach. The model incorporates the reversible, irreversible, and ohmic heats in the matrix and solution phases, and the temperature dependence of the various transport, kinetic, and mass-transfer parameters...

THERMAL STABILITY STUDIES OF LI-ION CELL NEGATIVE ELECTRODE MATERIALS: GRAPHITE, MCMB, HARD-CARBON AND InSb

A Li-ion cell typically consists of a carbon-based negative electrode (NE); a porous polymer membrane separator (polypropylene and/or polyethylene); and a lithiated transition metal oxide (LiMxOy, M=Co, Ni, and/or Mn) positive electrode (PE). Electrodes are made by casting slurries of PE or NE-materials, PVDF-binder and carbon-black onto metal current collectors. Mixtures of Li-salts and organi...

Li-Ion Cell Operation at Low Temperatures