Most of us have experienced frustration when having to start their car the first time it has been freezing during the night. The battery (a lead-acid accu) is dead. At very cold temperatures like -20°C even a new battery will not have enough energy left to crank an...

1. High energy density 23680 hybrid energy capacitor cells reach production milestone. The battery everyone has been looking for has arrived. And it is not a battery. It's a hybrid Energy Capacitor. No need to wait for Battery Day. Battery energy storage is one of the...

How robust are blue cell power capacitors? You only know this when you test them beyond the specifications of the datasheet. While the full test report is being prepared, hereby a few early test results.  The main stress and abuse tests are as follows: Charging and...

Since many years Alttreonic has a cooperation with Flanders Make (previously called Flanders Drive). The first common research project (ASIL) was related to mapping out a methodology for automotive safety. This project also covered other safety domains and was...

How can hybrid power capacitors be best used and improve on lithium-ion batteries? Why is power density a competitve advantage? How can it save weight and hence reduce the energy consumption? Read the full article here: Hybrid powercaps and hybrid drives The full...

New stress test with carbon based power capacitor. This time we simulate the WLTP driving profile by loading a cell at 0.5C, 1.0C, 5.0C, 10.0C (1C = 1.3 Ah). Average load: 3C. Things to notice: the cell charges to 75% at 5C in 10 minutes, the cell completes 3 test...

Last month we completed new stress tests on the power capacitor cells at the test facilities of Flanders Make. Here's one of the results you can find in the full report. An 18650 cell (2,7V / 1.3 Ah) is fully charged at 10C (13 A at 2,75V) and then discharged with...