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A storage battery and a method for pinching tabs of side and negative plates of the storage battery

A side negative plate and storage battery technology, which is applied in the direction of lead-acid battery, lead-acid battery construction, battery pack components, etc., can solve the problems such as the unstable effect of pinching tabs on the side negative plate and affecting the life of the battery, so that it is not easy to cast and weld Dropping or false welding, good input and output effects, avoiding the effect of casting and welding chips

Active Publication Date: 2022-02-01
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a storage battery and a method for pinching tabs on the side negative plate of the battery, which solves the problems in the prior art that the effect of pinching the tabs on the side negative plate is unstable and affects the life of the battery

Method used

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  • A storage battery and a method for pinching tabs of side and negative plates of the storage battery
  • A storage battery and a method for pinching tabs of side and negative plates of the storage battery
  • A storage battery and a method for pinching tabs of side and negative plates of the storage battery

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Step 1: On the frame of the side negative plate, the length of 1mm from the frame of the side negative plate is used as the bending point, and the tabs at this distance have no horizontal offset;

[0059] Step 2: Bending the tab at the bending point in step 1, the bending angle is 120°, and the length B of the bent tab in the vertical direction is 4mm;

[0060] Step 3: On the basis of step 2, bend the upper part of the tab of the side negative plate. The horizontal offset distance of the tab of this section is 0.5mm, and the tab is pinched to complete.

Embodiment 2

[0062] Step 1: On the frame of the side negative plate, the length of 3mm from the frame of the side negative plate is used as the bending point, and the tabs at this distance have no horizontal offset;

[0063] Step 2: Bending the tab at the bending point in step 1, the bending angle is 140°, and the length B of the bent tab in the vertical direction is 4.5 mm;

[0064] Step 3: On the basis of step 2, bend the upper part of the tab of the side negative plate. The horizontal offset distance of the tab of this section is 1mm, and the tab is pinched to complete.

Embodiment 3

[0066] Step 1: On the frame of the side negative plate, the length of 2mm from the frame of the side negative plate is used as the bending point, and the tabs at this distance have no horizontal offset;

[0067] Step 2: Bending the tab at the bending point in step 1, the bending angle is 135°, and the length B of the bent tab in the vertical direction is 4.2 mm;

[0068] Step 3: On the basis of step 2, bend the upper part of the tab of the side negative plate. The horizontal offset distance of the tab of this section is 0.8mm, and the tab is pinched to complete.

[0069] Another embodiment of the present invention discloses a storage battery, which includes a casing and a battery electrode group disposed inside the casing. The tabs of the negative plate on the side of the battery electrode group are kneaded by the method of Embodiments 1 to 3.

[0070] Specifically, the battery electrode group in this embodiment includes positive plates, negative plates, positive tabs, negativ...

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Abstract

The invention relates to a storage battery and a method for pinching tabs of side and negative plates of the storage battery, which belongs to the technical field of storage battery manufacturing and solves the problems in the prior art that the effect of pinching the tabs of the side and negative plates is unstable and affects battery life. The method of pinching the tabs on the side negative plate includes the following steps: Step 1: Select a bending point on the upper part of the frame of the side negative plate, the bending point is a certain distance from the frame of the side negative plate, and the tabs at this distance have no horizontal deviation Step 2: Bending the tab at the bending point in step 1, controlling the bending angle and the vertical length of the bent tab; Step 3: On the basis of step 2, negative side plate The upper part of the tab is bent to control the horizontal offset distance of the tab, and the tab is pinched to complete. The storage battery includes a casing and a battery pole group inside the casing, and the tabs of the negative plate on the side of the battery pole group are kneaded by the above method. The invention improves the effect of pinching the tabs of the side negative plate and prolongs the life of the battery.

Description

technical field [0001] The invention relates to the field of storage battery manufacturing, in particular to a storage battery and a method for pinching tabs on side and negative plates of the storage battery. Background technique [0002] With the implementation of the new national standard for lead-acid batteries, improving the specific energy of batteries has become an urgent task for the lead-acid battery industry. [0003] Among them, changing the battery from bridge welding to direct connection welding is a feasible solution to increase the specific energy of the battery, which not only reduces the amount of lead used in the busbar, but also reduces the length of the busbar, and the internal resistance of the battery is reduced. However, in the actual production process, the battery semi-finished products after direct continuous casting and welding are prone to the problem of side negative board glue climbing in the process of glue sealing, the utilization rate of acti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/533H01M50/541H01M10/12B21D21/00
CPCH01M10/12B21D21/00H01M50/541Y02E60/10Y02P70/50
Inventor 胡景城吴金熠郭永榔
Owner CHAOWEI POWER CO LTD
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