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Lead-acid storage battery and electric car using such lead-acid storage battery

A lead-acid battery, single battery technology, applied in the direction of lead-acid battery, lead-acid battery construction, electric vehicles, etc., can solve the problem that the sealing ring or the sealing ring is not installed in place, the installation of the sealing ring increases the installation process, and affects the normal use of the battery. and other problems, to achieve the effect of improving production efficiency, improving connection stability, and shortening the current path

Inactive Publication Date: 2015-11-04
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Another purpose of the present invention on the basis of the first purpose is to overcome the need to install sealing rings during the installation process of the positive and negative terminals of the storage battery in the prior art, which not only increases the installation process, but also is easy to be damaged by operators during the actual production process. Mistakes, resulting in missing sealing rings or improper installation of sealing rings, causing the potting glue in the terminal rubber tank to drip into the battery tank of the battery through the avoidance through hole, affecting the normal use of the battery. Simplify the installation process of the positive and negative terminals of the battery; and can effectively solve the problem that the potting glue in the terminal glue tank drips into the battery tank of the battery, affecting the normal use of the battery. Lead-acid battery and electric vehicles using this battery

Method used

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  • Lead-acid storage battery and electric car using such lead-acid storage battery
  • Lead-acid storage battery and electric car using such lead-acid storage battery
  • Lead-acid storage battery and electric car using such lead-acid storage battery

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Embodiment 1: as figure 2 , Figure 4 , Figure 6 , Figure 8 , Figure 14 As shown, a lead-acid storage battery includes a positive terminal 11a, a negative terminal 11b, a positive end lead-out pole 42a, a negative end lead-out pole 42b, a cover sheet, a battery case 3 with an open upper end, and a sealed battery case The upper cover 10 of the port on the body and a number of single cells arranged side by side in the battery case. Each single battery includes a single battery slot 31 and an electrode group 4 disposed in the single battery slot. The single cell slots are evenly arranged and distributed in the battery case. The pole group is formed by a number of positive plates 1 and a number of negative plates 2 alternately arranged through separators.

[0050] The positive tabs on the positive plates of the same pole group are connected through the positive bus bar 41a, and the negative tabs on the negative plates of the same pole group are connected through t...

Embodiment 2

[0061] Embodiment 2, the remaining structure of this embodiment is with reference to embodiment 1, and its difference is:

[0062] The thickness of each positive plate is greater than the thickness of each negative plate. Such as Figure 8 As shown, the ratio of the cross-sectional area of ​​the positive tab 1a on each positive plate 1 to the cross-sectional area of ​​the negative tab 2a on each negative plate 2 is greater than or equal to 0.59 and less than or equal to 0.74. The ratio of the cross-sectional area of ​​the positive tab to the cross-sectional area of ​​the negative tab on each negative plate is 0.59 or 0.62 or 0.64 or 0.68 or 0.7 or 0.72 or 0.74. The ratio of the sum of the cross-sectional areas of the positive tabs on each positive plate to the sum of the cross-sectional areas of the negative tabs on each negative plate is greater than or equal to 0.62 and less than or equal to 0.7. In this embodiment, the ratio of the sum of the cross-sectional areas of the ...

Embodiment 3

[0064] Embodiment 3: This embodiment provides an electric vehicle, which includes a lead-acid battery described in any one of Embodiments 1-2.

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Abstract

The invention discloses a lead-acid storage battery and an electric car using such a lead-acid storage battery, and aims at providing a lead-acid storage battery capable of effectively shortening a current path between bus bars and reducing internal resistance, heat value, and temperature and current collection property fluctuation among single batteries, and an electric car. The lead-acid storage battery comprises a plurality of single batteries arranged side by side, each single battery comprises a single battery jar and a polar group, the polar group is composed of a plurality of positive plates and a plurality of negative plates which are arranged alternatively in a manner of being separated by separators, positive lugs on the positive plates of the same polar group are connected through a positive bus bar, and negative lugs on the negative plates of the same polar group are connected through a negative bus bar; the positive bus bar and the negative bus bar of the single battery are directly connected with the negative bus bar and the positive bus bar in the single battery jar adjacent to the single battery through metal connectors, the single batteries are connected in series, and the positive bus bars, the negative bus bars and the metal connectors are located at the same height.

Description

[0001] This application is a divisional application with the filing date: April 30, 2014, the application number: 2014101845344, and the title of the invention: a lead-acid battery and an electric vehicle using the battery. technical field [0002] The invention relates to a storage battery, in particular to a lead-acid storage battery for an electric power-assisted vehicle and an electric vehicle using the storage battery. Background technique [0003] At present, the busbars of different polarities of adjacent single cells in the battery usually use pole cross-bridge welding to connect the single cells in series; while the busbars use pole cross-bridge welding to connect adjacent cells. When the busbars with different polarities between the batteries not only make the current path longer, but also increase the internal resistance and heat generation, resulting in increased fluctuations in temperature and current collection between the single batteries, affecting the cycle o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/30H01M2/08H01M10/12B60L11/18H01M50/183H01M50/507H01M50/516H01M50/541
CPCY02E60/10Y02T10/70Y02P70/50
Inventor 赵文超叶剑章春红
Owner CHAOWEI POWER CO LTD
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