Passively heated thermal battery

Abstract An energy source (10) for providing electrical energy (8) in an as-intended missile (2), which is set up to heat up at at least one structural section (16) during an as-intended flight (6), so that heat (22) is available there, contains at least one thermal battery (24) with at least one cell (26a-c), which contains an electrolyte (28), which, for providing 5 the electrical energy (8) at the thermal battery (24), is to be heated by the input of heat (22), wherein at least one of the electrolytes (28) can be thermally coupled to the structural section (16) in order to transfer at least part of the heat (22) provided at the structural section (16) during flight (6) from there to the electrolyte (28). 10 A missile (2) contains the energy source (2), wherein the at least one electrolyte (28) is thermally coupled to the structural section (16). (Figure 1) NoN co |0