Cr2450ht is a new type of high temperature lithium manganese button battery. Cr2450ht high temperature button battery adopts special high temperature resistant materials, strong active materials under ultra-low temperature and special sealing technology, which makes cr2450ht high temperature button battery have a wide range of temperature adaptability and greatly expands the application field of button battery. It makes up for the lack of high-temperature use of cr2450 and other types of button batteries produced in mainland China, and is the leading technology of high-temperature CR button batteries in China at present.