BATTERY CONTAINER, BATTERY, AND LAYER-BUILT BATTERY

摘要

The present invention relates to a battery container and a battery and multi-tier battery that use the battery envelope, deals with such problems as an increase in internal temperatures of unit battery cells, which are put together to build a multi-tier battery and produce heat during the repeated cycles of charging and discharging when in use resulting in the temperature rise by the accumulation of heat, deterioration in quality and degradation in performance of the battery elements of unit battery cells and a resulting shorter life of the battery and provides a battery container and a battery and multi-tier battery that use the battery container, wherein battery's heat dissipation ability is improved and the accumulation of heat and resultant temperature rise are prevented, thus enabling to prevent deterioration of battery's performance, the objectives as described in the above being achieved according to the present invention by having large thickness sections formed on the outer rims of walls that compose a container for containing battery elements, small thickness areas formed in the areas surrounded by the large thickness sections, a spacing means that is formed of straight-line ribs, a combination of latticed ribs and projections, cylindrical projections or the like disposed on the small thickness areas and the outer surface of the spacing means protruded out of the outer surfaces of the large thickness sections, thereby ensuring the mechanical strength and durability of the container and at the same time allowing cooling air to circulate efficiently along the walls of the battery envelope facilitating the heat produced inside of the battery to transfer to the outside with a resulting achievement of better heat dissipation through the walls when compared with prior art batteries and great contribution to an effective improvement in the battery's performance and life.