@article{25077, keywords = {lithium, lithium compounds, manganese compounds, polymers, secondary cells}, author = {Guoying Chen and Thomas J Richardson}, title = {Overcharge Protection for 4 V Lithium Batteries at High Rates and Low Temperatures}, abstract = {

Overcharge protection for 4 V Li1.05Mn1.95O4/lithium cells at charging rates in excess of 1 mA/cm2 (3C) and at temperatures of as low as −20°C was achieved using a bilayer separator coated with two electroactive polymers. High rate and low temperature overcharge protection and discharge performance were improved by employing a design in which the polymer-coated portion of the separator is in parallel with the cell rather than between the electrodes. The effects of different membrane supports for the electroactive polymers were also examined.

}, year = {2010}, journal = {Journal of Electrochemical Society}, volume = {157}, pages = {A735-A740}, doi = {10.1149/1.3392370}, language = {eng}, }