Battery arrangement and vehicle

Abstract

Battery arrangement (20) comprising at least one battery module (30), a first plate (40), a second plate (70), at least one protective element arrangement (60) and at least one deflection element (74), which battery module (30) comprises a battery module housing (32) and battery cells (34) arranged in the battery module housing (32), which battery module housing (32) comprises a first venting opening (38), which first plate (40) comprises a second venting opening (42), which battery module housing (32) is spaced from the first plate (40) such that a first space (50) is provided between the first venting opening (38) and the second venting opening (42), which first plate (40) is spaced from the second plate (70) such that a second space (72) is provided between the first plate (40) and the second plate (70), which protective element arrangement (60) comprises a protective element (61),which protective element (61) forms a channel (52) in the first space (50) through an inner wall (68), which channel (52) runs in the area between the first venting opening (38) and the second venting opening (42), which deflection element (74) is provided in the second space (72) and is designed to at least partially deflect a gas (90) emerging from the second venting opening (42) laterally in the second space (72) in order to distribute the resulting gas (90) in the second space (72) in the event of a thermal runaway of one of the battery cells (34).

Claims

[1] Battery arrangement (20) comprising at least one battery module (30), a first plate (40), a second plate (70), at least one protective element arrangement (60) and at least one deflection element (74), which battery module (30) comprises a battery module housing (32) and battery cells (34) arranged in the battery module housing (32), which battery module housing (32) has a first venting opening (38), which first plate (40) has a second venting opening (42), which battery module housing (32) is spaced from the first plate (40) such that a first space (50) is provided between the first venting opening (38) and the second venting opening (42), which first plate (40) is spaced from the second plate (70) such that a second space (72) is provided between the first plate (40) and the second plate (70), which protective element arrangement (60) has a protective element (61), which protective element (61) forms a channel (52) in the first space (50) through an inner wall (68), which channel (52) runs in the area between the first degassing opening (38) and the second degassing opening (42), which deflection element (74) is provided in the second space (72) and is designed to at least partially deflect a gas (90) emerging from the second degassing opening (42) laterally in the second space (72) in order to bring about a distribution of the gas (90) resulting therefrom in the second space (72) in the event of a thermal runaway of one of the battery cells (34). [2] Battery arrangement (20) according to claim 1, wherein the deflection element (74) has, at least in some regions, a direction of extension (75) which is different from the direction of extension of the second plate (70) in order to enable a deflection of a gas. [3] Battery arrangement (20) according to claim 1 or 2, wherein the deflection element (74) protrudes at least in sections from the second plate (70) in the direction of the first plate (40). [4] Battery arrangement (20) according to one of the preceding claims, in which the deflection element (74) has, at least in sections, a dome-shaped surface or a surface of a cylinder cut in the longitudinal direction on a side facing the second degassing opening (42). [5] Battery arrangement (20) according to one of the preceding claims, in which the deflection element (74) is arranged on the side of the second plate (70) facing the second venting opening (42) and is designed to shield the second plate (70) at least in sections from a gas (90) emerging from the second venting opening (42) in the event of a thermal runaway of one of the battery cells (34). [6] Battery arrangement (20) according to one of the preceding claims, which has a wall element (76), which wall element (76) extends in the region between the first wall (40) and the second wall (72) outside the second degassing opening (42) and has through-cutouts (78) to allow a passage of a gas (90) and at the same time at least partially retain larger particles in the gas (90). [7] Battery arrangement (20) according to claim 6, wherein the deflection element (74) and the wall element (76) are formed as one component (73). [8] Battery arrangement (20) according to one of the preceding claims, in which the second space (72) is provided as a degassing space for a gas (90). [9] Battery arrangement (20) according to one of the preceding claims, wherein the deflection element (74) comprises at least one material which is selected from a first material group consisting of: - Ceramics, - metal, - Metal alloys and - Plastic. [10] Battery arrangement (20) according to one of the preceding claims, in which the deflection element (74) with - the first plate (40), - the second plate (72), or - the first plate (40) and the second plate (72) are connected by a connection (79). [11] Battery arrangement (20) according to one of the preceding claims, in which the protective element arrangement (60) has a first sealing element (62) and a second sealing element (63), which first sealing element (62) is provided between the protective element (61) and the battery module housing (32), and which second sealing element (63) is provided between the protective element (61) and the first plate (40). [12] Battery arrangement (20) according to one of the preceding claims, in which the protective element (61) or the deflecting element (74) is formed from a material which is temperature-resistant such that it retains its shape for at least 10 s at a predetermined temperature of 300 °C. [13] Battery arrangement (20) according to one of the preceding claims, in which the second plate (40) is designed as an underbody protection plate for a vehicle (10). [14] Battery arrangement (20) according to one of the preceding claims, which has a plurality of first venting openings (38), a plurality of associated second venting openings (42), a plurality of associated protective element arrangements (60) and a plurality of associated deflection elements (74). [15] Vehicle (10) comprising a battery arrangement (20) according to one of the preceding claims 1 to 14.

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