The invention relates to the technical field of
electric vehicle batteries, in particular to a multi-protection buffering
electric vehicle battery. According to the technical scheme, the multi-protection buffering
electric vehicle battery comprises a battery box
assembly, and further comprises a protection upper cover
assembly and a hand lifting
assembly; a protective upper cover assembly is arranged at the upper end of the battery box assembly; the two sides of the upper end face of the protective upper cover assembly are each provided with a hand lifting assembly. According to the
lithium iron phosphate battery box disclosed by the invention, the
lithium iron phosphate battery packs are wrapped and protected by the
battery pack side edge protection plates on the inner side of the battery box shell, and meanwhile, the upper and lower
layers of
lithium iron phosphate battery packs are separated and supported by utilizing the high-temperature-resistant
flame-retardant porous breathable partition plate, and the interior of the high-temperature-resistant
flame-retardant porous breathable partition plate is porous, breathable, high-temperature-resistant and
flame-retardant; when the
lithium iron phosphate battery pack is subjected to
thermal runaway, hot air can be discharged downwards from the collecting hole in the center of the high-temperature-resistant flame-retardant porous breathable partition plate along the exhaust channel and is finally discharged from the
pressure release valve, and the problem that the whole
lithium iron phosphate battery pack is damaged by high temperature and is subjected to collective
thermal runaway is effectively solved.