Battery unit

A battery unit (10) having a cooling device (12) for dissipating heat generated while supplying energy to a consumer (14), the battery unit (10) comprising

• a fluid-tight battery housing (16),
• a battery cell stack (18), and
• a battery disconnect unit (20) having power electronics (22),
• wherein the cooling device (12) comprises a heat sink (24) and at least one heat pipe (26),
• wherein the battery cell stack (18), the battery disconnect unit (20), and the at least one heat pipe (26) of the cooling device (12) are disposed in the battery housing (16),
• wherein the battery cell stack (18) and the battery disconnect unit (20) are electrically connected to each other, and
• wherein the at least one heat pipe (26) of the cooling device (12) is thermally connected to the power electronics (22) of the battery disconnect unit (20), wherein the heat sink (24) is disposed on an outer side (28) of the battery housing (16), and
• wherein the battery housing (16) comprises a heat sink opening (30), wherein at least one connecting element (32) of the heat sink (24) extends into the battery housing (16) via the heat sink opening (30), and wherein the at least one connecting element (32) of the heat sink (24) is thermally connected to the at least one heat pipe (26) of the cooling device (12) for dissipating heat generated in operation.