Ferrari S.p.a.

Elena Ligabue

Luca Poggio

Ugo Sitta

Davide Ferrara

Andrea Benoit Abbiati

Roberto Betro'

Matias Troncoso

Luigi Marino

Irene Dona'

Enrico Venturi

A method for the diagnosis of thermal runaway in an electric battery having at least one stack of electrochemical cells connected to one another in series. The diagnosis method provides for the steps of: measuring a first electric voltage at the ends of each electrochemical cell; measuring a second electric voltage at the ends of the entire stack of electrochemical cells; calculating a difference between the second electric voltage and the sum of all first electric voltages; and diagnosing a thermal runaway of an electrochemical cell, if the first electric voltage of the electrochemical cell is smaller than a first threshold value and if, simultaneously, the difference between the second electric voltage and the sum of all first electric voltages is smaller than a second threshold value.

Method for the diagnosis of thermal runaway in an electric battery

A power storage system for an electric drive vehicle; the power storage system comprises: at least one battery pack, which is provided with a plurality of electrochemical cells, which are electrically connected to one another; a container, which is provided, on the inside, with a chamber housing the battery pack; at least one first connector, which is mounted on the container; and a covering casing, which is designed to thermally insulate and protect the casing from fire. The covering casing is made of a fireproof fabric, which is also thermally insulating and is in direct contact with an outer surface of the container.

Power storage system for an electric drive vehicle

Electric drive system of a hybrid or electric vehicle comprising at least a first and a second battery pack, said first battery pack being formed by a first plurality of equal cells, wherein a cell of said first plurality of cells identifies a first predetermined C-rate coefficient (power/capacity) and said second battery pack being formed by a second plurality of equal cells, wherein a cell of said first plurality of cells identifies a second predetermined C-rate coefficient (power/capacity) higher than said first predetermined coefficient, and wherein the drive system comprises at least a first and a second set of electromagnetic induction windings, respectively independently powered by said first and second battery pack by means of relative first and second inverter.

Electric drive system of a hybrid or electric vehicle

A vehicular battery pack comprising a container, cells arranged in layers one above the other in the container, high-voltage electrical components, including safety and measurement devices, wherein said high-voltage electrical components are grouped in a wall of said container of the battery pack and are made so as to be powered only when said wall is connected to the remaining battery pack.

Vehicular battery pack

A vehicular battery pack comprising a parallelepiped-shaped container, wherein cells are arranged in layers one above the other in the container, and wherein relative monitoring devices of the individual cells are arranged on a second lateral wall, perpendicular to said layers and first lateral walls, perpendicular to said layers and to said second lateral wall, wherein said first lateral walls are configured to cool said layers of cells.

A vehicular battery pack comprising a parallelepiped-shaped container, wherein cells are grouped in layers one above the other in the container, wherein each of said battery layers is connected to a face of a substantially planar-shaped tray through relative terminals of the same cells.

A vehicular battery pack comprising a parallelepiped-shaped container, defined by first, second and third lateral walls that are mutually perpendicular, wherein cells are arranged in layers one above the other in the container, wherein said third lateral walls are parallel to said layers, and wherein relative monitoring and supervision devices of the individual cells are arranged so as to define a first of said second lateral walls, and wherein terminals and safety devices of the battery pack are arranged in a second of said second lateral walls, opposite to said first of said second lateral walls.

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Serramazzoni, Italy

Elena Ligabue