Patent ID: 9711781
Date: 2017-07-18
CPC Classifications: H01M,Y02E

Claim:
1. An apparatus for preventing battery overcharge, comprising: a plurality of holders each interposed between cells stacked within a battery to enclose the cells in a stacking direction; an installation space formed between outer parts of at least two holders that enclose the cells; a fluid pouch disposed within the installation space and adjacent to the cells inside the installation space, and containing a fluid therein; and a cutting part disposed within the installation space, having a first end disposed adjacent to the fluid pouch, and having a cutter edge heading between a lead tab and a bus bar at a second end of the cutting part, wherein swelling of the cells causes the cutting part to be pressed and pushed out from the installation space by the fluid pouch due to expansion pressure generated by the cells, wherein the fluid pouch is disposed adjacent to the cells within the installation space to be fixed to the holders, and wherein the fluid pouch includes: