Alkaline battery

Abstract

An alkaline accumulator with multiple flow-guiding tubes for heat exchange is composed of casing, electrolyte, multiple positive plate electrodes, multiple negative plate electrodes, and multiple diaphragms between positive and negative plate electrodes. It features that said positive plate electrodes and negative plate electrodes are alternatively staggered to form extended positive plate electrode group and extended negative one, which have the holes for installing the flow-guiding tubes in it. The active substance is coaded in the area where positive and negative plate electrodes are overlapped. Its advantages are low internal resistance, high output power, uniform temp and long service life.

Description

technical field [0001] The invention relates to an alkaline storage battery with multiple drainage columns for heat exchange and drainage. Background technique [0002] In order to meet the operating voltage and capacity requirements of EV (pure electric vehicle) or HEV (hybrid electric vehicle) battery modules, it is necessary to Figure 4 The n single batteries shown are combined into a battery module, and the wide sides of the battery case with a wide width are matched with each other, and the narrow sides of the battery case with a narrow width are matched with each other to form a plane. The wide sides are separated by aluminum cooling fins or other substances, and the wide sides of the two outermost batteries and the narrow sides of all batteries are clamped together with metal bands. [0003] The composition of the single battery is that the positive and negative plates converging group, diaphragm and electrolyte are installed in the battery case, and the upper cover ...

AI Technical Summary

Problems solved by technology

The average distance from the entire surface of the positive and negative plates to the current collector is shortened, the internal resistance of the battery is reduced, the utilization rate of the electrode active material is improved, and the output capacity of the battery is improved, but this structure does not improve the electrode from the inside of the battery. The heat dissipation speed and temperature uniformity of the plates and modules. The battery is composed of multiple batteries connected in series in the same battery case. Since the battery module is used in pure electric vehicles and hybrid electric vehicles, when braking and charging with a large current , due to the large difference in temperature of the single cells, especially the large temperature difference between the temperature of the single cells in the middle of the module and the edge of the module, resulting in inconsistent charging acceptance, and some batteries are gassed in advance. After long-term use, some batteries will fail early. cause the module to fail and cannot be repaired

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