US 2026/0302400 A1 · BATTERY PACK FOR AN ELECTRIC ROAD VEHICLE AND METHOD FOR COOLING AN ELECTROCHEMICAL CELL FOR SUCH A BATTERY PACK

Abstract

A battery pack (for an electric road vehicle, comprising: a casing; at least one electrochemical cell comprising, in turn, a cathode, an anode and a solid electrolyte electrically connected to the cathode and anode; the cell has a thickness along a first axis increasing, in use, following the activation of said first cell itself; the first cell is accommodated inside said casing; the battery pack comprises a layer of spongy material in contact with the first cell and adapted to permit, in use, the increase in the first thickness along said first axis of said first cell; the battery pack comprises a circuit, through which a heat transfer fluid can flow, which is adapted to cool the first cell; the layer defining at least one first branch of the circuit.

Claims12

Dependent claims

A battery pack (6) for an electric road vehicle (1), comprising:

a casing (10);
at least one electrochemical cell (11, 12) comprising, in turn, a cathode, an anode and a solid electrolyte electrically connected to said cathode and anode;
said cell (11, 12) having a thickness (L) along a first axis (X) increasing, in use, following the activation of said first cell (11, 12);
said first cell (11, 12) being accommodated inside said casing (10);
at least one layer (46) of spongy material in contact with said first cell (11, 12) and designed to permit, in use, an increase in said first thickness (L) along said first axis (X) of said first cell (11, 12);
characterized in that it comprises a circuit (55), through which a heat transfer fluid can flow, which is designed to cool said first cell (11, 12);
said layer (46) defining at least one first branch (65) of said circuit (55).

4 more elements

A method for cooling an electrochemical cell (11, 12) for a battery pack (6) for an electric or hybrid road vehicle (1);

said cell (11, 12) comprising, in turn, a cathode, an anode and a solid electrolyte electrically connected to said cathode and anode and being accommodated in a casing (10);
said method comprising the steps of:
i) activating said cell (11, 12) so as to determine an increase in said thickness (L) of the cell (11, 12) along said axis (X);
and
ii) placing a layer (46) of spongy material in contact with said first cell (11, 12) so as to permit an increase in said first thickness (L) along said axis (X) of said cell (11, 12);
characterized in that it comprises the step iii) of cooling said cell (11, 12) by means of a heat transfer fluid conveyed inside a circuit (55) having a first branch (65) defined by said first layer (46).

3 more elements

Dependencies are inferred from the claim text.

Battery pack for an electric road vehicle and method for cooling an electrochemical cell for such a battery pack

Life of this patent

Battery pack for an electric road vehicle and method for cooling an electrochemical cell for such a battery pack

Life of this patent

Abstract

Claims12