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Lead plaster formula of long-life valve-regulated lead-acid storage battery and preparation method thereof

A lead-acid battery, valve-controlled technology, applied in the direction of lead-acid battery, lead-acid battery construction, battery, etc., can solve the problems of reduced charging acceptance, affecting battery life, and difficulty in recharging, so as to improve over-discharge recovery performance, improved service life, and extended cycle life

Inactive Publication Date: 2021-04-30
JIANGSU LEOCH BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main material of the existing valve-regulated lead-acid battery for motorcycles is Pb-Ca alloy. During the charge-discharge cycle of the Pb-Ca alloy battery, the charge acceptance capacity decreases, and it is difficult to recharge, which is likely to cause capacity decay at the beginning of life and affect the use of the battery life

Method used

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  • Lead plaster formula of long-life valve-regulated lead-acid storage battery and preparation method thereof
  • Lead plaster formula of long-life valve-regulated lead-acid storage battery and preparation method thereof
  • Lead plaster formula of long-life valve-regulated lead-acid storage battery and preparation method thereof

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preparation example Construction

[0043] The preparation method of positive lead paste:

[0044] Step 1: Put the lead powder in the positive electrode paste formula into the paste mixing machine and let it stand for 2 minutes, then add graphite and short fiber and dry stir for 5 minutes;

[0045] Step 2: Add stannous sulfate and antimony trioxide in the positive lead paste formula to the paste mixing machine, and dry stir for 8 minutes

[0046] Step 3: Add the pure water in the above positive electrode paste formula into the paste mixing machine within 2 minutes, and continue to stir for 6 minutes after adding water to obtain material A;

[0047] Step 4: Add dilute sulfuric acid to the above material A, control the acid addition time at 15 minutes, keep the paste temperature at 72°C for 8 minutes, stir for 10 minutes after the acid addition, and obtain the positive electrode lead paste;

[0048] The preparation method of negative lead paste:

[0049] Step 1: Put the lead powder in the negative electrode past...

Embodiment 1-3

[0056] Positive electrode paste formula:

[0057] material name Embodiment 1 (weight part) Embodiment 2 (weight part) Embodiment 3 (weight part) lead powder 990 1000 1010 dilute sulfuric acid 100 110 120 Short fiber (polypropylene) 1.2 1.5 1.8 pure water 106 116 126 graphite 1 2.0 3 stannous sulfate 1 1.2 1.5 Antimony trioxide 1.2 1.6 1.8

[0058] Negative electrode paste formula:

[0059] material name Embodiment 1 (weight part) Embodiment 1 (weight part) Embodiment 1 (weight part) lead powder 990 1000 1010 dilute sulfuric acid 70 80 90 pure water 105 114 120 Short fiber (polypropylene) 1 1.2 1.5 humic acid 2.5 2.8 3.5 lignin 1 1.5 2 Barium sulfate 6 8.0 10 Acetylene carbon black 1.2 1.7 2.2 multi-walled carbon nanotubes 1 1.3 2 barium stearate 1 1.5 2

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Abstract

The invention discloses a lead plaster formula of a long-life valve-regulated lead-acid storage battery and a preparation method thereof. The preparation method comprises the following steps of: adding lead powder, dilute sulfuric acid, purified water, graphite, short fibers, stannous sulfate, antimonous oxide, humic acid, lignin, barium sulfate, acetylene carbon black, multi-walled carbon nanotubes and barium stearate according to the polar formula amount of the lead plaster, making the raw materials into the lead plaster meeting technical requirements and plate coating requirements in a plaster mixing machine according to a certain mass, wherein the positive lead plaster can inhibit early capacity attenuation of the storage battery in the using process, the overdischarge restorability of the battery is improved, and the service life of the battery is prolonged; the negative lead plaster can prevent a negative electrode plate from shrinking during charging circulation, improve the charging acceptance capability of the storage battery under a low-temperature condition and prolong the service life of the storage battery; acetylene carbon black in the negative lead plaster can improve the conductivity and the charging acceptance of the negative electrode plate, and multi-walled carbon nano-particles in the negative lead plaster can greatly improve the charging acceptance of the negative electrode plate.

Description

technical field [0001] The invention relates to the field of lead-acid batteries, in particular to a lead paste formula and a preparation method of a high-life valve-regulated lead-acid battery, which is mainly used in motorcycles. Background technique [0002] The design principle of valve-regulated lead-acid batteries is to inject the required amount of electrolyte into the plates and separators. There is no free electrolyte, and the ability to absorb oxygen is improved by wet negative plates. In order to prevent the decrease of electrolyte, the battery is sealed. Therefore, the valve-regulated lead-acid battery is also called "lean liquid battery". [0003] The grid of valve-regulated lead-acid battery is mainly made of lead-calcium alloy to improve its positive and negative gas evolution (H 2 and O 2 ) overpotential to achieve the purpose of reducing the amount of gas evolution during charging. Oxygen begins to occur when the positive plate reaches 70% charge, and oxy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/62H01M4/57H01M10/12H01M10/613H01M10/625H01M10/653H01M10/654
CPCH01M4/57H01M4/625H01M10/121H01M10/613H01M10/625H01M10/653H01M10/654H01M2220/20H01M2004/021Y02E60/10Y02P70/50
Inventor 杨朝章尹波徐海刚姚昌国
Owner JIANGSU LEOCH BATTERY
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