The Ibis project, a collaboration between Stellantis and battery manufacturer Saft, aims to simplify electric car batteries by using package-friendly microinverters. This innovative approach eliminates the need for an on-board charger and reduces the number of components in an electric vehicle (EV). By embedding a microinverter and charger in each battery module, the Ibis project streamlines the powertrain system and produces AC current directly from the battery pack.
Electric car batteries, or battery packs, are typically made up of numerous small lithium-ion cells arranged into modules. These modules generate low-voltage DC electricity, which is then converted to AC by an inverter to power the electric motors. Additionally, an on-board charger is required to convert AC current from the grid to DC for charging the battery.
The Ibis project takes inspiration from photovoltaic systems, which use multiple microinverters to convert DC electricity to AC at each individual solar panel. Similarly, each battery module in the Ibis project is equipped with a microinverter and charger. This eliminates the need for a separate on-board charger and high-voltage inverter(s) for the electric motors.
By integrating the microinverters and chargers into the battery modules, the Ibis project simplifies the powertrain system and reduces the overall hardware required in an EV. This approach is particularly beneficial for small EVs where space is limited. Additionally, it is expected to be cost-effective, as multiple smaller charger and inverter electronics are cheaper than their high-voltage counterparts.
The Ibis project represents another example of innovative thinking in the EV industry. By reimagining the traditional powertrain system, Stellantis aims to make electric car batteries even more efficient and compact. However, it is worth noting that this approach may not be compatible with other concepts, such as Volkswagen’s “Cell2Car” initiative, which involves directly integrating individual cells into the car’s chassis.
The simplicity of electric car batteries is often overshadowed by the advanced science and electronics behind them. While EVs eliminate the complexity of traditional internal combustion engines, they still rely on sophisticated technology to store and convert electricity. The Ibis project seeks to simplify this technology further, making EV powertrains even more efficient and cost-effective.
Stellantis’ collaboration with Saft demonstrates the industry’s commitment to continuous improvement in electric vehicle technology. As the demand for electric cars continues to rise, manufacturers are constantly exploring new ways to enhance battery performance, reduce costs, and increase efficiency. The Ibis project represents a step in the right direction, offering a promising solution for simplifying electric car batteries.
In conclusion, the Ibis project by Stellantis and Saft aims to simplify electric car batteries by using package-friendly microinverters. By embedding a microinverter and charger in each battery module, the need for an on-board charger and high-voltage inverter(s) is eliminated. This approach streamlines the powertrain system, reduces the number of components, and produces AC current directly from the battery pack. While the Ibis project offers potential benefits for small EVs and cost-effectiveness, its compatibility with other concepts remains to be seen. Nonetheless, it represents another example of innovative thinking in the EV industry, driving advancements in electric vehicle technology.