Charging system and method of a battery of an electric vehicle based on cable authentication

A method for charging an electric vehicle battery, the method comprising:

• providing a charging system comprising a charging station and at least one charging cable connectable to a battery to be recharged, wherein the charging station comprises at least one power unit having a power supply suitable for charging the battery, and a female-type multipole charging connector suitable for connecting to a first male-type multipole cable connector of the at least one charging cable, wherein the at least one charging cable and the charging station comprise respective authentication circuits configured for implementing a cable authentication algorithm which, if successful, enables battery charging, wherein the charging of the electric vehicle battery is subject to a verification of a user authorization to use a charging service, said verification of the user authorization to use the charging service being carried out by a user identification procedure, the user identification procedure comprising, for each cable of the at least one charging cable:
• associating, during a cable production step, a unique cable identification code (ROMID), said unique cable identification code being readable by the charging station when the cable is connected to the charging station;
• associating to said unique cable identification code a unique cable identification token (CTID) and a unique user identification code (UID);
• transmitting, by the user, said unique cable identification token (CTID) and said unique user identification code (UID) to the charging station;
• connecting the cable to the charging station;
• obtaining, from the charging station, the unique cable identification token (CTID) from reading the unique cable identification code (ROMID) stored in the connected cable;
• and
• comparing, by the charging station, the unique cable identification token (CTID) obtained with the unique identification code transmitted by the cable with the unique cable identification token (CTID) transmitted by the user;
• and
• checking whether the at least one charging cable is authentic by an authentication procedure performed by the cable authentication circuits on board the at least one charging cable and the charging station when the cable is connected to the charging station.