Battery pack and waterproof treatment method thereof

The invention discloses a battery pack and a waterproof treatment method thereof, the battery pack comprises a battery box and a battery module accommodated in the battery box, and the battery moduleis placed in an atmosphere of a hydrophobic substance for a period of time, so that a layer of hydrophobic film is attached to the surface of the battery module. According to the invention, the internal battery module can be prevented from being short-circuited or even on fire when the battery box fails to be sealed. 本申请公开了一种电池包及电池包的防水处理方法，所述电池包包括电池箱以及收容于所述电池箱内的电池模组，将所述电池模组置于憎水物质的气氛中一段时间，使所述电池模组表面附着一层憎水膜。本申请能够在电池箱密封失效时避免内部的电池模组遇水短路甚至起火。