Influence of 15 crown 5 additive to a liquid electrolyte on the performance of Li/CFx Systems at temperatures up to 50 degC
Abstract The additive of 15 crown 5 for liquid electrolyte for primary Li/CFx cells is proposed. In their presence the cells with 1 M LiBF4 in GBL and 1 M LiPF6 in EC/DMC/EMC are workable at low temperatures. Their discharge capacities are 140 and 110 mAh g 1 at 45 50 degC respectively. The 15 crown 5 additive probably is adsorbed on electrodes surfaces and form Li+ conducting layers. This mechanism approved by quantum chemical modeling.