21700 Tabless Cylindrical Cell
Comparison Item |
Anode Composition |
1C Discharge Capacity (mAh) |
Internal Resistance (mΩ) |
| S-Insight Silicon-Carbon Anode | 8% Silicon-Carbon | 4092 | 3.9 |
| Competitor Silicon-Carbon Anode | 8% Silicon-Carbon | 4019 | 4.3 |
| Prelithiated Silicon-Oxide Anode | 10% Prelithiated Silicon Oxide | 4034 | 4.0 |
Fast-Charging Cycle Life
Cycle-life comparison of three tabless cells under 2.5C charge/discharge cycling conditions as a function of cycle number.
At 80% capacity retention, S-Insight's silicon-carbon anode achieves 1000+ cycles, compared with 850+ cycles for the competitor silicon-carbon anode and 600+ cycles for prelithiated silicon-oxide anode.
High-Rate Discharge Cycle Life
Cycle-life comparison of three tabless cells under 1C charging and 10C discharging conditions as a function of cycle number.
At 80% capacity retention, S-Insight's silicon-carbon anode achieves 520+ cycles, compared with 380+ cycles for the competitor silicon-carbon anode and 270+ cycles for prelithiated silicon-oxide anode.
Charging Performance
Under 3C charging, S-Insight's silicon-carbon anode maintains a longer constant-current phase during high-rate charging, with a constant-current ratio of >85%, compared with approximately 83% for both the competitor silicon-carbon anode and prelithiated silicon-oxide anode.
Discharge Temperature Performance at Different Rates
At room temperature, S-Insight's silicon-carbon anode demonstrates stable and competitive temperature performance at discharge rates from 2.5C to 15C.
Compared with the competitor silicon-carbon anode, S-Insight's Si/C shows lower overall temperature rise across the tested rates, with discharge temperatures reduced by approximately 2°C or more at discharge rates of 10C and above.
