14 research outputs found
Loss of ACE2 Exaggerates High-Calorie Diet–Induced Insulin Resistance by Reduction of GLUT4 in Mice
Function of Ammonium Polyacrylate Binders for Long-Life Lithium/Sulfur Cells
The long cycle life of lithium–sulfur cells is
strongly
desired to leverage the sulfur’s high specific capacity. In
this study, we investigated the effects of the countercations of polyacrylate
binders used in sulfur composite electrodes on the cycling performance
of the lithium–sulfur cells. Lithium, sodium, and ammonium
were compared as countercations. Sulfur electrodes were evaluated
in terms of their mechanical strength, porous structure, and interaction
with the polysulfide. The electrodes with an ammonium polyacrylate
binder, which has high mechanical strength, could maintain a porous
structure throughout cycling, resulting in the highest cycling performance.
Moreover, the affinity of the ammonium polyacrylate with the polysulfide
contributed to recovering some capacity by recapturing the polysulfide
during the charge step