Fig. 2
From: Overlooked electrolyte destabilization by manganese (II) in lithium-ion batteries
Presence of Mn2+ ions triggers thermal decomposition of electrolyte. Electrolyte discoloration before (a) and after (b) storage at 55 °C for 8 days; ESI-MS characterizations of Electrolytes 5 and 6 before (c, e) and after (d, f) storage, where methanol was used as diluent solvent; DSC curves of fresh Electrolytes 2, 5, and 6 (g); charge/discharge voltage profiles of graphite/Li half-cells containing Electrolyte 6 before (upper, h) and after thermal storage (lower, h) at a current density of 74.5 mAh g−1 (0.2 C) between 0.005 to 2.5 V vs. Li/Li+
