Advanced Battery Management
Petalite’s Battery Management System provides advanced battery management and the ultimate in feedback control compared to traditional BMS’s.
Combined with Petalite’s S.D.C charging, the Petalite BMS is able to detect internal impedance of the battery series string on-the-fly and during the whole charge cycle. This enables the BMS to profile the cell characteristics and map the cells historic profile, providing the ultimate Battery State of Health (S.O.H) calculation.
Ultimately Petalite provide the tools to enable safer, more intelligent charging of Li-Ion cells.
Petalite’s electronic hardware engineers have designed a bespoke and fully original BMS design to enable advanced analytics and feedback. No commercial off the shelf BMS components were used in the design of this system and all aspects were designed from the FPGA level up. This provides the user with a fully flexible and customised system that, when combined with Petalite’s S.D.C charging system enables the advanced Internal Impedance Feedback mechanism and safer supercharging that Petalite is known for.
Existing Safety Solutions
Existing methods of safety protection for lithium-ion cells are limited to voltage detection plus cell temperature measurement. The use of cell temperature measurement is problematic as temperature is the ‘effect’ and not the ’cause’ of cell damage and has a delay of several seconds.
Engineered for Safety
Petalite’s technology allows the detection of the ’cause’ by analysing cell resistance and impedance up to 100 times per second, significantly faster than existing methods. The technology also learns from other deployed chargers and the history of the battery in order to charge at optimal safety levels.
Data is Key
The ability to sample the internal impedance of the battery during the whole charge cycle under load is important. This information, combined with traditional sensing allows the battery to indicate the health, state of charge and age to the charger from beginning to end. This means that the battery is selecting the optimal charge rate during the whole charge cycle. Compare this to traditional chargers where the power settings are standard and the charger is looking out for either high voltage or high temperature, both poor indicators.
On-Line Impedance Measurement
Petalite’s S.D.C.S technology enables advanced battery feedback and monitoring beyond traditional sensing methods such as voltage and temperature. Significantly improving safety and performance.
New PCB Architecture
The hybrid Flyback / S.D.C.S architecture can be integrated into any new / existing product development cycle.
Battery Asset Management
Petalite’s Asset management platform combines machine learning and condition monitoring to predict residual value in battery systems throughout large deployments.
Battery Condition Monitoring
Combining on-line impedance measurement with other variables allows cell level analysis at up to 100Hz, with life-cycle prediction and constant faulty cell detection faster than traditional variables i.e temperature measurement.
Advanced I.O.T integration and global connectivity enables the Petalite charging system to adapt to local environmental conditions and learn histories of other battery cells, improving safety and performance.
Longer Life hardware
Silicon carbide mosfets and zero high voltage aluminium capacitors equals a higher mean time between failure compared to traditional charging topologies.
Ready to Integrate
Petalite’s S.D.C Supercharging technology utilises the latest, mass produced hardware to enable rapid integration and expansion without the delays in ramping up production for specific components or materials. Below you can see an example of the algorithm running on a modified hardware system to provide a full charge in under 15 minutes.