Square nickel hydride battery

Abstract

The invention discloses a square nickel hydride battery. The square nickel hydride battery comprises a square shell, electrode busbars, conductive plates and more than two single power cores, wherein the more than two single power cores are successively placed in the square shell; each two adjacent single power cores are isolated from each other by the corresponding conductive plate; a communicating hole is formed in each conductive plate, so that the single power cores are communicated with one another and share electrolyte; each single power core comprises a plurality of positive plates, a plurality of negative plates and a continuous folded diaphragm; the positive plates and the negative plates of each single power core are respectively placed on two sides of the corresponding continuous folded diaphragm and are isolated from each other completely; the positive plates of each single power core are isolated from one another by wrinkles of the corresponding continuous folded diaphragm; the negative plates of each single power core are also isolated from one another by the wrinkles of the corresponding continuous folded diaphragm; after partially extending out of the corresponding continuous folded diaphragm, the positive plates and the negative plates of each single power core are in close contact with the corresponding conductive plate, so that the single power cores are serially connected with one another; the electrode busbars are respectively mounted at two ends of the square shell. The composition structure of the conventional battery is changed to greatly reduce internal resistance of the battery.

Description

technical field [0001] The invention relates to a nickel-hydrogen battery, in particular to a square nickel-hydrogen battery pack. Background technique [0002] Ni-MH batteries currently have two types of single cells, cylindrical and square. There are two types of square nickel batteries, metal and plastic. Since the standard voltage of nickel-metal hydride batteries is 1.2V, it is generally necessary to connect them in series to form a battery pack higher than 1.2V in actual use. [0003] After the existing square Ni-MH batteries are connected in parallel inside the single cells, the link between multiple single cells connected in series is as follows: figure 1 As shown, inside the single battery, the pole plate 10 is welded to the tab 30 through the current collector foam nickel 20 , the tab 30 is welded to the electrode block 40 , and the electrode block 40 is welded to the electrode post 50 . The series connection between the single cells is crimped together with the...

AI Technical Summary

Problems solved by technology

On the one hand, it increases the difficulty of production technology, reduces the qualified rate, and increases the production cost; on the other hand, it directly increases the internal resistance of the single battery pack

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