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Composite current collector of lead-acid storage battery and battery

A lead-acid battery and current collector technology, applied in lead-acid batteries, battery electrodes, electrode carriers/current collectors, etc., can solve the problems of high resistance, large specific gravity, and unsatisfactory conductivity.

Pending Publication Date: 2021-02-23
杨春晓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Lead-acid battery current collector is an important part of the electrode, which plays the role of conducting electricity, supporting and fixing active materials; lead or lead alloy current collectors have been widely used in the positive and negative electrodes of lead-acid batteries, and its important disadvantage is that it is heavy (large proportion), high resistance (conductivity is not ideal), etc.

Method used

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  • Composite current collector of lead-acid storage battery and battery
  • Composite current collector of lead-acid storage battery and battery
  • Composite current collector of lead-acid storage battery and battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The lead-acid storage battery composite current collector of this embodiment, such as figure 1 As shown, it includes a lead skin 1 and a carrier 2. The lead skin 1 is covered on the surface of the carrier 2 and forms a stack with the carrier 2. In the stack, one surface of the lead skin 1, that is, The lower surface is in contact with or / and connected to the surface of the covered carrier 2, and the carrier 2 plays the role of mechanical bearing, support, fixation, and skeleton support for the lead skin 1; the above-mentioned formation is a two-layer laminate.

[0062] The lead or material of the lead skin 1 is 1# lead in industry, or electrolytic lead, and its lead purity is 99.994wt.%.

[0063] The carrier 2 is a polyethylene plastic plate;

[0064] The lead skin is processed through physical and mechanical processes such as casting, rolling, pressing, rolling, punching, drawing, cutting, cutting and shearing.

[0065] The lead skin 1 is a cuboid with a size of 10 m...

Embodiment 2

[0079] The lead-acid battery composite current collector of this embodiment includes a lead alloy skin 1 , a carrier 2 , and a lightweight conductor 3 .

[0080] The first embodiment of the lead-acid battery composite current collector in this example

[0081] Such as figure 2 As shown, the lead alloy skin 1, the carrier body 2, and the light conductor 3 form a stack with each other, and the light conductor 3 is between the lead alloy skin 1 and the carrier body 2 in the stack (located between the lead alloy skin 1 and the other One side of the lower surface) and the conductive connection of the light conductor 3 and the lower surface of the lead alloy skin 1 in surface contact or / and connection and the surface contact or / and connection with the upper surface of the carrier 2, the laminate is also a lead alloy The skin 1 and the carrier 2 are stacked in indirect contact or / and connected with each other through the lightweight conductor 3 , and the stack or stack structure is...

Embodiment 2

[0132] Embodiment 2 Implementation Mode 1 Composite Current Collector Weight = the sum of the weights of the lead alloy skin 1, the carrier 2, and the light conductor 3 in the composite current collector;

[0133] Embodiment 2 Implementation Mode 2 Composite current collector weight=the sum of the weights of lead alloy skin 1, carrier 2, light conductor 3, and edge sealing material 4 in the composite current collector;

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Abstract

The invention discloses a composite current collector of a lead-acid storage battery, the composite current collector comprises a lead sheath or a lead alloy sheath and a carrier, the lead sheath or the lead alloy sheath covers the surface of the carrier or is laminated with the carrier to form a laminated layer, in the laminated layer, one surface of the lead sheath or the lead alloy sheath is alower surface, and the other surface of the lead sheath or the lead alloy sheath, namely a lower surface, directly contacts or / and connects with the surface of the covered carrier body or indirectly contacting or / and connects with the surface of the covered carrier body; optionally, the composite current collector of the lead-acid storage battery can further comprise a light electric conductor, and the light electric conductor is located on one side of the lower surface of the lead sheath or the lead alloy sheath and is in electric conduction connection with the lead sheath or the lead alloy sheath or the lower surface of the lead sheath or the lead alloy sheath. The invention also discloses a lead-acid storage battery comprising the composite current collector. The composite current collector of the lead-acid storage battery disclosed by the invention is relatively low in weight and relatively low in resistance; the lead-acid storage battery disclosed by the invention is relatively high in gravimetric specific energy, relatively small in internal resistance and the like.

Description

technical field [0001] The invention relates to a current collector and a battery, in particular to a lead-acid storage battery composite current collector and a lead-acid storage battery. Background technique [0002] Lead-acid battery current collector is an important part of the electrode, which plays the role of conducting electricity, supporting and fixing active materials; lead or lead alloy current collectors have been widely used in the positive and negative electrodes of lead-acid batteries, and its important disadvantage is that it is heavy (big specificity), high resistance (conductivity is not ideal), etc. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a lead-acid battery composite current collector. The lead-acid battery composite current collector has relatively small weight and relatively small resistance, which is conducive to reducing the weight and internal resistance of the lead-acid battery. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/66H01M4/68H01M10/06
CPCH01M4/667H01M4/68H01M4/685H01M10/06Y02E60/10
Inventor 杨春晓
Owner 杨春晓
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