Battery module

Abstract

The invention provides a battery module. The battery module comprises a plurality of circular single batteries, a plurality of end snap rings, two connecting components and a heat-shrinkage film, wherein the two ends of the single batteries are separately fixed in battery mounting grooves of the end snap rings, and positive pole caps of the single batteries are placed in first through holes and are parallel and level to end surfaces of the ends, with the first through holes, of the end snap rings; the two adjacent end snap rings are engaged together in a matched manner; the two connecting components are separately integrally welded to the two ends of the single batteries to implement series connection or / and parallel connection of the single batteries; welding grooves of the connecting components are inserted in the first through holes of the end snap rings in a one-to-one correspondence and matched manner, and the positive pole caps of the single batteries penetrate through second through holes of the connecting components; insulating plates separately adhere to the outward surfaces of the two connecting components; and the heat-shrinkage film integrally sleeves the single batteries and the insulating plates at the two ends in a heat-shrinkage manner. The battery module is simple and novel in structure and high in volume energy density, and the single batteries can be independently changed conveniently.

Description

technical field [0001] The invention relates to a battery module. Background technique [0002] With the development of power batteries over time, lithium batteries have quickly occupied the battery market through their own high energy density. However, with the rapid development of the world economy, people have higher requirements for the safety performance of batteries, which makes Ni-MH batteries The scope of use of the battery is more extensive, but it has brought the high price problem of the Ni-MH battery at the same time. With the development of nickel-metal hydride batteries and the expansion of application fields, the energy density requirements of battery modules and battery packs made of nickel-hydrogen batteries are getting higher and higher, and the volume of the entire battery module and battery pack is required It is getting smaller and smaller. In addition, during the use of battery modules or battery packs, individual batteries often appear abnormal and th...

AI Technical Summary

Problems solved by technology

With the development of nickel-metal hydride batteries and the expansion of application fields, the energy density requirements of battery modules and battery packs made of nickel-hydrogen batteries are getting higher and higher, and the volume of the entire battery module and battery pack is required It is getting smaller and smaller. In addition, during the use of battery modules or battery packs, individual batteries often appear abnormal and the entire battery module or battery pack cannot be used normally. Because it is inconvenient to replace a single battery, this is currently happening. Generally, the battery module is scrapped directly or the entire abnormal battery module in the battery pack is taken out and replaced. This method causes a lot of waste and leads to high cost of use.

Images