Series-connection structure of square battery and square nickel-hydrogen battery

Abstract

The invention discloses a series-connection structure of a square battery and a square nickel-hydrogen battery. The series-connection structure of the square battery comprises more than two single power cores, wherein each single power core comprises at least one cathode plate, at least one anode plate and at least one diaphragm; each diaphragm is used for isolating the corresponding cathode plate from the corresponding anode plate; the single power cores are successively assembled in the same shell in the front-back direction in the horizontal direction; the cathode plates of the former single power core and the anode plates of the latter single power core are in one-to-one correspondence and are fixedly connected integrally directly through conductive plates; and partitions for isolating an electrolytic solution are respectively mounted between the conductive plates of each two front and back adjacent single power cores and between each conductive plate and the shell. The series-connection structure of the square battery is compact in structure, good in connection stability and small in internal resistance; and the charging and discharging speed of the battery is high, and the service life of the battery is long.

Description

technical field [0001] The invention relates to a series structure of square batteries and square nickel-hydrogen batteries. Background technique [0002] Since the standard voltage of a single cell is 1.2V, in actual use, it is generally necessary to connect the single cells in series to form a battery higher than 1.2V. Among them, the square battery formed by stacking the single cells is currently more commonly used. [0003] The series connection of existing square batteries is as follows: figure 1 As shown, the positive and negative plates of the single cell 10 are respectively connected to the electrode bus blocks 20 at both ends to form an independent unit, and the electrode bus block 20 exposes the sealed single cell 10 . Then, stack the individual electric cores 10 together, wherein the two electrode bus blocks 20 near the ends of the adjacent individual electric cores 10 are closely abutted to form electrical contact. The internal resistance of the battery in this...

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Problems solved by technology

The internal resistance of the battery in this way is relatively large, because the positive and negative plates of each single cell 10 need to be welded and connected to the electrode bus block 20, and the two single cell cells 10 are connected to each other through the electrode bus block 20. Close contact to form an electrical connection involves many structures, and the contact makes the stability of the electrical connection decrease, and poor contact is prone to occur, so the internal resistance is large, and the large internal resistance will affect the charge and discharge rate of the battery. Battery Life

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