An electronic device, in particular an electronic watch, including a case and an electronic system arranged within the case, the case being provided with a housing for a battery allowing supplying the electronic system with energy, wherein it includes a standalone endothermic protection module configured to be automatically triggered in the event of thermal runaway of the battery in order to absorb heat.

An aqueous battery system includes an electrode assembly, a recombination device, and a controller. The recombination device has a catalyst that combines hydrogen and oxygen produced by the electrode assembly to form water and generate heat via exothermic reaction. The controller, responsive to a detected temperature or change in temperature associated with the recombination device due to the heat, changes power supplied to the electrode assembly.

An aqueous battery system includes an electrode assembly, a recombination device, and a controller. The recombination device has a catalyst that combines hydrogen and oxygen produced by the electrode assembly to form water and generate heat via exothermic reaction. The controller, responsive to a detected temperature or change in temperature associated with the recombination device due to the heat, changes power supplied to the electrode assembly.

Provided are a heat transfer suppression sheet having an excellent heat transfer prevention effect and excellent retainability of inorganic particles and shape retainability at a high temperature, and a battery pack in which the heat transfer suppression sheet is interposed between battery cells. The heat transfer suppression sheet (10) includes inorganic particles (20), first inorganic fibers (30), and second inorganic fibers (31). The first inorganic fibers (30) are amorphous fibers. The second inorganic fibers (31) contain at least one kind selected from amorphous fibers having a glass transition point higher than that of the first inorganic fibers (30) and crystalline fibers.

A pocket on or in a piece of apparel for carrying and storing a mobile phone or similar battery powered electronic device in cold temperatures is disclosed. An exothermic device is placed in proximity either within the same pocket compartment or in a separate pocket in close proximity. The heat generated by the exothermic device prevents battery degradation at these temperatures.

A pocket on or in a piece of apparel for carrying and storing a mobile phone or similar battery powered electronic device in cold temperatures is disclosed. An exothermic device is placed in proximity either within the same pocket compartment or in a separate pocket in close proximity. The heat generated by the exothermic device prevents battery degradation at these temperatures.

The invention relates to a battery system (B), in particular a lithium-ion battery system, comprising at least one apparatus (V) for increasing safety when using the battery system (B), and comprising at least one discharge device (EV) suitable for electrical discharge of the battery system (B), wherein the at least one apparatus (V) is an apparatus for converting electrical energy from the battery system (B) into non-electrical energy, and the at least one apparatus (V) is connected to the discharge device (EV) at least in the case of a discharge of the battery system (B).

An object is to enable a compact and high output heat storage system to perform warm-up rapidly when a vehicle is started up, and after warm-up, to recover surplus heat that is present in a heat source in the vehicle to prepare for the next warm-up event. A heat recovery-type heating device includes: an ammonia buffer configured so as to be capable of fixing and desorbing ammonia that serves as a chemical reaction medium; and a chemical heat storage reactor provided with a chemical heat storage material that generates heat through a chemical reaction with ammonia supplied from the ammonia buffer, and that desorbs ammonia using surplus heat from a heat source and returns the ammonia to the ammonia buffer.

An object is to enable a compact and high output heat storage system to perform warm-up rapidly when a vehicle is started up, and after warm-up, to recover surplus heat that is present in a heat source in the vehicle to prepare for the next warm-up event. A heat recovery-type heating device includes: an ammonia buffer configured so as to be capable of fixing and desorbing ammonia that serves as a chemical reaction medium; and a chemical heat storage reactor provided with a chemical heat storage material that generates heat through a chemical reaction with ammonia supplied from the ammonia buffer, and that desorbs ammonia using surplus heat from a heat source and returns the ammonia to the ammonia buffer.

The invention provides a thermal runaway suppressant of lithium batteries and the related applications. The thermal runaway suppressant includes a passivation composition supplier, for releasing a metal ion (A), selected from a non-lithium alkali metal ion, an alkaline earth metal ion or a combination thereof, and an amphoteric metal ion (B), a polar solution supplier and an isolating mechanism, which is capable of separating the passivation composition supplier and the polar solution supplier within a predetermined temperature. When the isolating mechanism is failed and the polar solution supplier releases a polar solution to carry the metal ion (A) and the amphoteric metal ion (B) into the lithium battery and react with the positive active material and the negative active material to a state with lower energy. The voltage of the whole battery is decreased and the electrochemical reaction pathway is blocked to prevent the thermal runaway from occurring.