Abstract: An electric storage device for providing electric energy for a charging operation of at least one electrically-driven motor vehicle has a storage unit for storing the energy, a cooling assembly for providing cooling capacity and a coolant circuit which is designed to convey thermal energy from the storage unit to the cooling assembly by a coolant. At least one charging cable is coupled to the storage unit, each charging cable being designed for connection to the motor vehicle and having a cooling channel. A distribution system is provided which is designed to divert some of the coolant into the cooling channel of the charging cable or to carry away thermal energy from the cooling channel into the coolant via a heat exchanger.

Abstract: A stationary storage device temporarily stores electric energy in an electric supply grid, and includes at least one electric storage unit, each electric storage unit being connected to a common DC bus by a respective DC-DC converter. The stationary storage device includes a bidirectionally operated AC-DC converter that couples the common DC bus to the electric supply grid, and a charging device that exchanges energy with an electrically operated motor vehicle. The charging device includes a connection device that connects the electrically operated motor vehicle in order to exchange the energy, and a charge control device that controls the exchange of said energy. A coupling device electrically connects the connection device to the common DC bus via one or more DC-DC converters in order to exchange said energy.

Abstract: An electric storage device for providing electric energy for a charging operation of at least one electrically-driven motor vehicle has a storage unit for storing the energy, a cooling assembly for providing cooling capacity and a coolant circuit which is designed to convey thermal energy from the storage unit to the cooling assembly by a coolant. At least one charging cable is coupled to the storage unit, each charging cable being designed for connection to the motor vehicle and having a cooling channel. A distribution system is provided which is designed to divert some of the coolant into the cooling channel of the charging cable or to carry away thermal energy from the cooling channel into the coolant via a heat exchanger.

Abstract: A stationary storage device configured to temporarily store electric energy in an electric supply grid includes at least one electric storage unit, each being connected to a common DC bus by a respective DC-DC converter. The storage device further includes a bidirectionally operated AC-DC converter for coupling the common DC bus to the supply grid, and a charging device configured to exchange energy with an electrically operated motor vehicle. The charging device includes a connection device configured to connect the electrically operated motor vehicle in order to exchange said energy, and a charge control device configured to control exchange of said energy. A coupling device is provided which is configured to electrically connect the connection device to the common DC bus via one or more DC-DC converters in order to exchange said energy.