Battery and gas effluent system therefor

Abstract

A vehicle (V) includes a battery enclosure (,) enclosing a battery system (B). Each battery (B,) includes a cell (,) that comprises a rolled lamination (LM) of a positive sheet electrode (,) having layers (,) of positive-pole-oriented active substance coated on both side of a charge collecting sheet (,), a negative sheet electrode (,) having layers (,) of negative-pole-oriented active substance coated on both sides of another charge collecting sheet (,), and electrolyte-containing separator (,) between the layers of active substances. The batter further includes a cell enclosure (,) totally enclosing the cell. A gas effluent system (,) for the battery system comprises a gas release system (RS,) for generated gas in the cell of each battery to be released outside the cell enclosure, and a gas discharge system (DS) for released gas to be discharged outside the battery enclosure. The gas release system comprises gas release circuitry including a network (NT) of blanks (Cp: P=1,2, . . . , q, . . . ) formed in the lamination, e.g. pointed or zoned blanks (,A,,) formed in the layer(s) of active substance(s) and/or the charge collecting electrode(s), a blank space (Sp) between the cell and the cell enclosure, and release valve (,). The gas discharge system comprises a gas discharge circuit (DC) communicable with the gas release circuitry, and provided as a draft controllable ducting (,) defined between a floor panel (,) of vehicle body (VB) and a wall of the battery enclosure.