EV batteries are getting cheaper and cheaper, encouraging OEMs to put more battery capacity in their vehicles. However, what is fast charging for 16-24kWh batteries, becomes not so fast when the battery size reaches 40, 60 or more kWh. To meet the expectations of the e-mobility stakeholders and drivers, CHAdeMO is working on high power charging. A new edition of CHAdeMO protocol enabling 200kW to 400kW charging was developed by the Association and its members, who are now preparing for 900kW.
High Power roadmap
CHAdeMO 200kW specification
While 200kW means a significant change of charging speed for EVs with high capacity batteries, it does not require a lot of changes in the protocol itself. The main changes concern the connector and not the charger body or charging specification.
Changes to the connector
SAFETY FOR OVER-TEMPERATURE
- Sensor and/or fuse in the gun
THRESHOLD OF CABLE TEMPERATURE
- Part to be touched: below 85°C
- Part to be held: below 60°C
CABLE TEMPERATURE CONTROL
- Thermo-sensor at gun and/or cable
- Direct current control by sensor feedback