Table 1 Conditions A-E to study gassing reaction mechanisms of LTO electrodes
Conditions | Remarks | |
|---|---|---|
Condition A | Package containing LTO (or rutile TiO2) soaked in electrolyte-free solvents at 25 or 50°C for 3 months | Ethylene carbonate (EC); Diethyl carbonate (DEC); Dimethyl carbonate (DMC); Ethylene methyl carbonate (EMC); Propylene carbonate (PC) |
Condition B | Package containing LTO (or rutile TiO2) soaked in electrolyte solution at 25 or 50°C for 3 months | 1 M LiPF6/EC; LiPF6/DEC; LiPF6/DMC; LiPF6/EMC; LiPF6/PC; LiPF6/EC+DMC+EMC |
Condition C | Electrolyte solution stored at 25 or 50°C for 3 months in absence of LTO | 1 M LiPF6/EC+DMC+EMC |
Condition D | Fully charged soft-packed battery stored at 25°C for 3 months | NCM/LTO or NCM/(LTO/C) battery (see details in Experimental section) 1 M LiPF6/EC+DMC+EMC is used as electrolyte solution |
Condition E | Soft-packed battery cycled 400 times at 25°C at a charge/discharge rate of 0.5C | Same as Condition D |
