Lead-acid ultra-battery

A super lead-acid battery and lead powder technology, applied in the direction of lead-acid batteries, electrode carriers/collectors, etc., to achieve excellent high-rate performance, solve the effects of short life, and reduce the depth of discharge

CN101764264BInactive Publication Date: 2012-04-25李庆余
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2012-04-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a lead-acid ultra-battery which comprises a negative plate and is characterized in that the negative plate comprises a negative grid, and the paste coating the negative grid contains conducting polymer provided with Faraday pseudo-capacitor energy storage. Compared with the prior art, the lead-acid ultra-battery of the invention has the following advantages: 1, by introducing the conducting polymer having the characteristics of the Faraday pseudo-capacitor, the lead-acid ultra-battery also has the characteristics of the Faraday pseudo-capacitor; and 2, the lead-acid ultra-battery of the invention has good high-rate performance, particularly, the lead-acid ultra-battery is capable of keeping more than 85% of the initial capacity (1C) when charging or discharging at 10C; and 3, thanks to the capacitor energy storage, the invention reduces the current on the lead negative plate of the lead-acid ultra-battery, and meanwhile, the invention correspondingly reduces the depth of discharge of the lead-acid ultra-battery, greatly reduces the sulfation on the surface of the lead negative plate, greatly prolongs the service of the lead-acid batteries and solves the problem that the service life of the lead-acid batteries is short.
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Description

technical field

[0001] The invention relates to a lead-acid battery, in particular to a super lead-acid battery. Background technique

[0002] Lead-acid battery (Lead-acid battery) electrodes are mainly made of lead and its oxides, and the electrolyte is a battery of sulfuric acid solution. Since the Frenchman Plante (G.Plante) invented the lead-acid battery in 1859, it has experienced nearly 150 years of development. Great progress has been made, whether it is in transportation, communication, electric power, military or in various economic fields of navigation and aviation, lead-acid batteries have played an indispensable and important role. In recent years, with the acceleration of urbanization and the expansion of city limits, the traffic flow has increased dramatically. Although automobiles and other means of transportation are developing rapidly, due to the influence of relatively expensive use and rising oil prices, electric bicycles are popular among consumers in t...

Examples

Embodiment 1

[0033] 1, super lead-acid battery (5Ah) assembly of the present invention:

[0034] Positive plate 1 is PbO 2 , the negative plate 2 includes two pieces, one of which is a lead negative plate, and the other is a conductive polymer negative plate of conductive polyaniline (PAN), the lead negative plate and the conductive polymer negative plate are placed in parallel, and there is no gap between the two negative plates. Separator 3, two negative plates share the same PbO 2 Positive plate 1, diaphragm 3 is set between positive plate 1 and negative plate 2, press figure 1 Assemble as shown. The negative grids of the above negative plates are all made of lead-antimony alloy grids.

[0035] Wherein, the preparation of the lead negative plate: get 19.33 grams of lead powder (chemical composition Pb 2PbO) and the additive of 1.0% lead powder quality (the mass ratio of barium sulfate, humic acid and acetylene black is 1.5: 1: 1) mix uniformly , and then added to 12% H of the qualit...

Embodiment 2

[0053] Assemble and test the super lead-acid battery in the same manner as in Example 1, except that the mass ratio of lead powder: PAN is changed to 3: 1, the initial capacity of the super lead-acid battery is 3.65Ah, and after 2000 cycles, the capacity is 3.24Ah. The retention rate was 88.8% of the initial capacity.

Embodiment 3

[0055] Assemble and test super lead-acid battery in the same manner as in Example 1, just lead powder: the mass ratio of PAN is changed into 30: 1, and the initial capacity of gained super lead-acid battery is 3.56Ah, and after 2000 cycles, capacity is 3.14Ah, The capacity retention rate was 88.2% of the initial capacity.