Automotive traction battery

Abstract

The invention relates to a motor vehicle traction battery (10) with a battery cell stack (90) and a battery housing (20) enclosing the battery cell stack (90), which is formed by at least two plastic housing bodies (22, 24), each having a housing flange (35, 36), wherein the two housing flanges (35, 36) form a housing-flange connection (38), wherein each plastic housing body (22, 24) has an electromagnetic shielding mat (32, 34) over the entire housing body surface, wherein each shielding mat (32, 34) in the region of the housing flange (35, 36) over the housing flange circumference laterally from the plastic housing body (22, 24) with a contacting structure (42, 44; 42', 44') protrudes, and wherein the two contacting structures (42, 44; 42', 44') are electrically directly connected to one another and form an electrical mat contact (40; 40').

Claims

[1] Motor vehicle traction battery (10) with a battery cell stack (90) and a battery housing (20) enclosing the battery cell stack (90), which is formed by at least two plastic housing bodies (22, 24), each having a housing flange (35, 36), wherein the two housing flanges (35, 36) form a housing-flange connection (38), wherein each plastic housing body (22, 24) has an electromagnetic shielding mat (32, 34) over the entire housing body surface, wherein each shielding mat (32, 34) projects laterally out of the plastic housing body (22, 24) with a contacting structure (42, 44; 42', 44') in the region of the housing flange (35, 36) beyond the housing flange circumference, and wherein the two contacting structures (42, 44; 42', 44') are electrically directly connected to one another and form an electrical mat contact (40; 40'). [2] Motor vehicle traction battery (10) according to claim 1, wherein the contacting structures (42, 44; 42', 44') forming the mat contacting (40; 40') project laterally into an interior space (21) enclosed by the battery housing (20). [3] Motor vehicle traction battery (10) according to one of the preceding claims, wherein the contacting structures (42, 44; 42', 44') bear against one another in an elastically prestressed manner. [4] Motor vehicle traction battery (10) according to one of the preceding claims, wherein the contact structures (42, 44) forming the mat contact (40) together form a latching connection. [5] Motor vehicle traction battery (10) according to one of the preceding claims, wherein the contacting structures (42, 44; 42', 44') define a contact plane (400) which is perpendicular to the flange plane (38') of the housing-flange connection (38) formed by the housing flanges (35, 36). [6] Motor vehicle traction battery (10) according to one of the preceding claims, wherein the shielding mats (32, 34) are each arranged in the plastic housing body (22, 24). [7] Motor vehicle traction battery (10) according to one of the preceding claims, wherein the shielding mats (32, 34) each have a mesh structure. [8] Motor vehicle traction battery (10) according to one of the preceding claims, wherein the mat contact (40; 40') has no additional joining elements. [9] Motor vehicle traction battery (10) according to one of the preceding claims, wherein the mat contact (40; 40') is formed over the housing flange circumference at least every 60 mm.

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