Characterised by the use of reversible temperature-sensitive devices

Official title: characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching (means for preventing undesired use or discharge H01M50/572)

H01M10/637 (Characterised by the use of reversible temperature-sensitive devices) appears on 325 US grants and 517 published applications in this corpus.