| Test Group | Protocol | Current | Pulse width | Rest | Cycles to 80% SOH | |------------|----------|---------|-------------|------|-------------------| | A (control) | CC-CV | 1C | continuous | N/A | 1200 | | B (fast charge) | CC | 5C | 12 min pulse | 5 min | 350 | | C (flash cycle) | pulsed | 80C | 50 ms | 950 ms | 78 |
It is a result of the laws of thermodynamics. flash cycling side
When ( \phi > 5 ) and ( t_p ) is sub-diffusive, the Sand’s equation time ( t_Sand ) (time to reach zero surface concentration) is much smaller than ( t_p ), leading to either salt depletion (anode) or lithium plating (cathode side), depending on polarity. | Test Group | Protocol | Current |