The invention relates to rechargeable battery (1) having at least one cell (3) for storing electrical energy and at least one heating device (2) for heating or controlling the temperature of the cell (3), said heating device (2) comprising a single-layer or multi-layer film (4, 9) with at least one heating element.

The invention relates to rechargeable battery (1) having at least one cell (3) for storing electrical energy and at least one heating device (2) for heating or controlling the temperature of the cell (3), said heating device (2) comprising a single-layer or multi-layer film (4, 9) with at least one heating element.

A high-voltage accumulator has a high-voltage accumulator housing in which multiple electric storage cells are arranged. A wall of the high-voltage accumulator housing is equipped with at least one aeration/ventilation device which is gas-permeable at least from the interior of the high-voltage accumulator housing to the exterior of the high-voltage accumulator housing such that gas can leak out of the interior of the high-voltage accumulator in the event of an overpressure in the interior of the high-voltage accumulator housing. The aeration/ventilation device is equipped with a device, by which a substance that accumulates on the aeration/ventilation device and partly or completely blocks same can be removed.

A high-voltage accumulator has a high-voltage accumulator housing in which multiple electric storage cells are arranged. A wall of the high-voltage accumulator housing is equipped with at least one aeration/ventilation device which is gas-permeable at least from the interior of the high-voltage accumulator housing to the exterior of the high-voltage accumulator housing such that gas can leak out of the interior of the high-voltage accumulator in the event of an overpressure in the interior of the high-voltage accumulator housing. The aeration/ventilation device is equipped with a device, by which a substance that accumulates on the aeration/ventilation device and partly or completely blocks same can be removed.

Performance of a thermal lithium battery is improved by improving the ion-transport characteristics of a solid lithium iodide electrolyte. The lithium iodide lattice of the solid electrolyte includes defects that improve the ion-transport characteristics of the solid lithium iodide electrolyte. In one example, the defects are due to the introduction of nanoparticles that result in grain boundary defects. The defects resulting at the grain boundaries with the nanoparticles improve the ion transport characteristics of the electrolyte. In another example, defects originating from the synthesis process are pinned by the presence of nanoparticles and/or the reinforcing structure. In another example, the defects are aliovalent substitution defects. A cation that is aliovalent to the lithium cation (Li.sup.+), such as a barium cation (Ba.sup.2+), creates an aliovalent substitution defect in the lithium iodide lattice. In order to maintain charge neutrality in the lattice, two lithium cations are replaced by a single barium cation creating the defect in the lattice.

Performance of a thermal lithium battery is improved by improving the ion-transport characteristics of a solid lithium iodide electrolyte. The lithium iodide lattice of the solid electrolyte includes defects that improve the ion-transport characteristics of the solid lithium iodide electrolyte. In one example, the defects are due to the introduction of nanoparticles that result in grain boundary defects. The defects resulting at the grain boundaries with the nanoparticles improve the ion transport characteristics of the electrolyte. In another example, defects originating from the synthesis process are pinned by the presence of nanoparticles and/or the reinforcing structure. In another example, the defects are aliovalent substitution defects. A cation that is aliovalent to the lithium cation (Li.sup.+), such as a barium cation (Ba.sup.2+), creates an aliovalent substitution defect in the lithium iodide lattice. In order to maintain charge neutrality in the lattice, two lithium cations are replaced by a single barium cation creating the defect in the lattice.

Articles and electrochemical devices containing electrodes, current collectors, heaters, and/or sensors and associated systems and methods, are provided. The sensors, when present, may be temperature sensors or pressure sensors. In some cases, the heaters and/or sensors are adjacent to the article or electrochemical device. In certain cases, the heaters and/or sensors are thin films that are integrated into the article or electrochemical device.

A battery module having a plurality of battery cells (2), in particular lithium-ion battery cells (20) which in a longitudinal direction (3) of the battery module (1) are disposed so as to be mutually adjacent, and the plurality of battery cells (2) are mutually braced by means of a tensioning element (4), wherein a thermal compensation element (5) is disposed between a battery cell (2) and the tensioning element (4), and the tensioning element (4), on a side of the tensioning element (4) that faces away from the battery cell (2), is connected to a heating element (100).

A battery module having a plurality of battery cells (2), in particular lithium-ion battery cells (20) which in a longitudinal direction (3) of the battery module (1) are disposed so as to be mutually adjacent, and the plurality of battery cells (2) are mutually braced by means of a tensioning element (4), wherein a thermal compensation element (5) is disposed between a battery cell (2) and the tensioning element (4), and the tensioning element (4), on a side of the tensioning element (4) that faces away from the battery cell (2), is connected to a heating element (100).

A fuel cell system having a fuel cell cooling circuit coupled to a battery cooling circuit through a coolant/coolant heat exchanger for removing heat from the fuel cell cooling circuit through the battery cooling circuit during normal steady state operation of the fuel cell system.