<Pi>-type-conjugated oxidation reduction polymer modified lead storage battery and preparation method therefor

A lead-acid battery, conjugate oxidation technology, applied in the direction of lead-acid batteries, battery electrodes, circuits, etc., can solve the problems of increasing the energy density, the early capacity decay has no obvious effect, the battery production cost increases, and the cost of graphene is high, so as to achieve battery discharge The effect of prolonged time, high energy density, and low price

Active Publication Date: 2017-07-04
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a new type of two-dimensional material, graphene has good electrical conductivity, thermal conductivity, mechanical properties, and low resistivity. It is used in batteries. Has no significant effect on early capacity fade
On the other hand, the cost of preparing graphene with fewer structural layers and stable structure is relatively high, which greatly increases the production cost of batteries.

Method used

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  • &lt;Pi&gt;-type-conjugated oxidation reduction polymer modified lead storage battery and preparation method therefor
  • &lt;Pi&gt;-type-conjugated oxidation reduction polymer modified lead storage battery and preparation method therefor

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Effect test

Embodiment 1

[0031] A π-type-conjugated redox polymer modified lead storage battery, which contains the following substances per 100 parts by mass of lead storage battery lead paste: 98.5 parts of lead powder, 0.8 parts of additives, 0.7 parts of mixed polymer powder; the mixed The polymer powder is prepared from π-conjugated redox polymer, sulfonated arene polymer with surface anti-oxidation functional group and single-walled carbon nanotube.

[0032] Wherein, the π-conjugated redox polymer is poly((N,N'-bis(2-octyldodecyl)-1,4,5,8-naphthalimide- Diyl)-m-5,5'-(2,2'-dithiane). The surface anti-oxidation functional group sulfonated arene polymer is a naphthalenesulfonic acid condensate with a relative molecular weight of 15,000 and a high degree of sulfonation. The mass ratio of the π-type-conjugated redox polymer to the sulfonated arene polymer with the surface anti-oxidation functional group is 3:1; the mass ratio of the π-type-conjugated redox polymer to the single-walled carbon nanotube...

Embodiment 2

[0039] A π-type-conjugated redox polymer modified lead storage battery, which contains the following substances in every 100 parts by mass of lead storage battery lead paste: 99 parts of lead powder, 0.5 part of additive, 0.5 part of mixed polymer powder; the mixed The polymer powder is prepared from π-conjugated redox polymer, sulfonated arene polymer with surface anti-oxidation functional group and single-walled carbon nanotube.

[0040] Wherein, the π-conjugated redox polymer is poly((N,N'-bis(2-octyldodecyl)-1,4,5,8-naphthalimide- Diyl)-m-5,5'-(2,2'-(1,2-ethylenediyl)-thiophene). The surface anti-oxidation functional group sulfonated arene polymer is highly sulfonated with a relative molecular mass of 10,000 degree of naphthalenesulfonic acid condensate. The mass ratio of the π type-conjugated redox polymer to the surface oxidation-resistant functional group sulfonated arene polymer is 9:4; the π type-conjugated redox polymer and single The mass ratio of walled carbon nan...

Embodiment 3

[0047] A π-type-conjugated redox polymer modified lead storage battery, which contains the following substances in every 100 parts by mass of lead storage battery lead paste: 98.8 parts of lead powder, 0.5 parts of additives, 0.7 parts of mixed polymer powder; the mixed The polymer powder is prepared from π-conjugated redox polymer, sulfonated arene polymer with surface anti-oxidation functional group and single-walled carbon nanotube.

[0048] Wherein, the π-conjugated redox polymer is 4-(1,3-dimethyl-2,3-dihydro-1H-benzimidazole)-diyl-N,N-diphenyl Aniline-doped modified poly((N,N'-bis(2-octyldodecyl)-1,4,5,8-naphthalimide-diyl)-m-5,5 '-(2,2'-Dithialine). The surface oxidation-resistant functional group sulfonated arene polymer is a naphthalenesulfonic acid condensate with a relative molecular weight of 9000 and a high degree of sulfonation. The π-type-conjugated redox polymerization The mass ratio of the sulfonated arene polymer to the surface anti-oxidation functional grou...

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Abstract

The invention relates to the field of a lead-acid storage battery, and discloses a <pi>-type-conjugated oxidation reduction polymer modified lead storage battery and a preparation method therefor. Positive electrode lead paste of the battery comprises 98.5-99.5 parts of lead powder, 0.2-0.8 parts of additive and 0.3-0.7 parts of mixed polymer powder; and the mixed polymer powder is prepared from a <pi>-type-conjugated oxidation reduction polymer, a surface anti-oxidation functional group sulfonated arene polymer and single-wall carbon nanotubes. The active material of the lead storage battery comprises the surface-modified and anti-oxidation functional group conjugated oxidation reduction polymers, so that strong electronic storage capability and rapid electronic reaction speed are achieved; the polymers comprise available oxidation reduction nodes, so that relatively strong oxidation reduction activity is achieved; therefore, the lead storage battery has relatively high energy density, and the discharging time of the battery is obviously prolonged in a high-rate discharging condition of the battery; and meanwhile, the service life of the battery is prolonged.

Description

technical field [0001] The invention relates to the field of lead-acid storage batteries, in particular to a π-type-conjugated redox polymer modified lead storage battery and a preparation method thereof. Background technique [0002] Lead-acid batteries have been invented for more than 150 years. Because of their high safety, stable performance, low manufacturing cost, and high recycling value, they are widely used in the national economy and people's lives. middle. But at the same time, lead-acid batteries also have a series of problems such as low cycle life, low energy density utilization rate, and incomplete conversion of active materials leading to capacity attenuation, which has become an important factor restricting lead-acid batteries from occupying a larger market. [0003] The conductivity of the electrodes in lead-acid batteries is an important factor affecting the performance of the plates. Good electrical conductivity shortens the formation process cycle of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/36H01M4/56H01M4/62H01M10/06
CPCH01M4/362H01M4/56H01M4/624H01M4/628H01M10/06Y02E60/10
Inventor 柯娃吴亮戴贵平张绍辉
Owner CHAOWEI POWER CO LTD
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