TY - JOUR KW - Lithium KW - Lithium compounds KW - Manganese compounds KW - Polymers KW - Secondary cells AU - Guoying Chen AU - Thomas J Richardson AB -
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.
BT - Journal of Electrochemical Society DO - 10.1149/1.3392370 IS - 6 LA - eng N2 -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.
PY - 2010 SP - A735 EP - A740 T2 - Journal of Electrochemical Society TI - Overcharge Protection for 4 V Lithium Batteries at High Rates and Low Temperatures VL - 157 ER -