NOVELTY - The housing (1) has a pressure relief valve (20) including a closure element (21), which closes an opening (11) of a battery housing wall (10). The closure element releases the opening by an inner pressure in the housing for realizing a volume flow (100) from the housing, where the inner pressure deviates from a preset reference-pressure range. The pressure relief valve includes a spring element (22) e.g. torsion spring, by which a force for closing the opening is proportionately produced by a weight force of the closure element.    USE - Battery housing for accommodating a battery cell of a battery i.e. lithium ion battery, which is connected with a drive train for storing electrical energy for a hybrid drive of a motor vehicle e.g. electrical or hybrid motor vehicle such as an electromotively driven motor vehicle (claimed) e.g. passenger car and lorry. Can also be used for rail vehicles, spacecrafts, water vehicles, aircrafts, stationary applications e.g. wind power plants and solar systems, mobile electronic devices e.g. laptops and communication devices, vehicles with Otto and diesel engines, and vehicles using hydrogen as an energy carrier.    ADVANTAGE - The utilization of the pressure relief valve prevents uncontrolled opening of the housing, and reduces risk for operating, maintenance, rescue and medical persons during transportation of batteries that are subjected to extreme physical conditions such as accident-caused impulses. The housing prevents penetration of potentially hazardous substance such as air and/or oxygen, into the housing, thus avoiding occurrence of uncontrollable chemical reactions in an interior of the housing, and hence avoiding fire formation. The housing avoids leakage of gases and occurrence of electromagnetic interferences, and enables convenient transportation of the damaged batteries.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for maintenance and/or repair of a battery.    DESCRIPTION OF DRAWING(S) - The drawing shows a side sectional view of a battery.    Battery housing (1)    Battery housing wall (10)    Opening (11)    Pressure relief valve (20)    Closure element (21)    Spring element (22)    Volume flow (100)