About Supercapacitors
Advantages and disadvantages: Batteries vs. Ultracapacitors/Supercapacitors
Conclusion of Batteries vs. Ultracapacitors:
- The most significant disadvantage of Ultracapacitors in compare to batteries is the low energy densitiy.
- The most significant disadvantage of Batteries in compare to Ultracapacitors is the reduced cycle life, the reduced lifetime and the handling.
Note: Depending on battery type, the following specifications can differ.
Requirement | Battery | Ultracapacitor |
Cycle life | Low | High |
Lifetime | Middle | High |
Time to charge | Slow | Very fast |
Shelf life | Not recommendet, note handling and care | Uncomplicated |
Stored energy (energy density) | High | Low |
Power output (power density) | Middle | High |
Low temperatures | Output power high reduced (ESR much higher) Capacity reduced strongly |
Output power reduced after longer using in low temperatures (ESR increases) |
High temperatures | Reduced cycle life | Capacity decreases when longer used at high temperature |
Deep discharge | Capacity decreases, safety risk possible | uncomplicated down to 0V, no negative effects |
Transport/International shipping | Observe regulations | Uncomplicated (no chemical energy storage) |