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Coated paper for stacked battery and preparation method thereof

A pulp-layer paper and battery technology, applied in paper, papermaking, coating and other directions, can solve the problems of continuous flow production, poor isolation performance, poor product quality, etc., to improve chemical stability, improve barrier performance, The effect of improving film formation

Inactive Publication Date: 2010-03-17
GUANGDONG ZHAOQING MINGZHU PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past, the domestic production of laminated zinc-manganese dry batteries used cylindrical zinc-manganese dry battery slurry layer paper. Due to poor isolation performance, the product quality was poor. , resulting in the inability of continuous flow production
According to the retrieval of Guangdong Institute of Science and Technology Information, there is no report on laminated pulp paper technology in China

Method used

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  • Coated paper for stacked battery and preparation method thereof
  • Coated paper for stacked battery and preparation method thereof
  • Coated paper for stacked battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Preparation of coating layer:

[0047] Among them, the contents of each component of the negative pulp paper coating layer are: polyvinyl alcohol-1788: 18%, polyvinyl alcohol 1799: 30%, modified starch: 40%, carboxymethyl cellulose: 5%, Polyacrylamide: 2%, polyvinylpyrrolidone K-90: ​​2%, composite corrosion inhibitor: 3.0%.

[0048] The contents of each component of the paper cup pulp layer are: polyvinyl alcohol-1799: 10%, polyvinyl alcohol-1788: 25%, modified starch: 40%, carboxymethyl cellulose: 5%, polyacrylamide: 3.0%, polyvinylpyrrolidone K-90: ​​13%, polyvinylpyrrolidone K-30: 2%, composite corrosion inhibitor 2%.

[0049] Add the above-mentioned modified starch to deionized water to prepare a modified starch solution; then dissolve the above-mentioned polyvinyl alcohol, polyacrylamide, carboxymethyl cellulose, polyvinylpyrrolidone and deionized water, and then add it to the modified starch solution During the stirring process, add composite corrosion inhibi...

Embodiment 2

[0051] Preparation of coating layer:

[0052] Among them, the contents of each component of the negative pulp paper coating layer are: polyvinyl alcohol-1788: 18%, polyvinyl alcohol 1799: 30%, modified starch: 40%, carboxymethyl cellulose: 5%, Polyacrylamide: 2%, polyvinylpyrrolidone K-90: ​​2.5%, composite corrosion inhibitor: 2.5%.

[0053] The contents of each component of the paper cup pulp layer are: polyvinyl alcohol-1799: 10%, polyvinyl alcohol-1788: 25%, modified starch: 40%, carboxymethyl cellulose: 5%, polyacrylamide: 3%, polyvinylpyrrolidone K-90: ​​13%, polyvinylpyrrolidone K-30: 2.3%, composite corrosion inhibitor 1.7%.

[0054] Add the above-mentioned modified starch to deionized water to prepare a modified starch solution; then dissolve the above-mentioned polyvinyl alcohol, polyacrylamide, carboxymethyl cellulose, polyvinylpyrrolidone and deionized water, and then add it to the modified starch solution During the stirring process, add the composite corrosio...

Embodiment 3

[0056] Preparation of coating layer:

[0057] Among them, the content of each component of the negative pulp paper coating layer is: polyvinyl alcohol-1788: 20%, polyvinyl alcohol 1799: 30%, modified starch: 38%, carboxymethyl cellulose: 5%, Polyacrylamide: 3%, polyvinylpyrrolidone K-90: ​​2%, composite corrosion inhibitor: 2%.

[0058] The contents of each component of the paper cup pulp layer are: polyvinyl alcohol-1799: 10%, polyvinyl alcohol-1788: 25%, modified starch: 40%, carboxymethyl cellulose: 5%, polyacrylamide: 3%, polyvinylpyrrolidone K-90: ​​12%, polyvinylpyrrolidone K-30: 3%, composite corrosion inhibitor 2.0%.

[0059] Add the above-mentioned modified starch to deionized water to prepare a modified starch solution; then dissolve the above-mentioned polyvinyl alcohol, polyacrylamide, carboxymethyl cellulose, polyvinylpyrrolidone and deionized water, and then add it to the modified starch solution During the stirring process, add the composite corrosion inhibi...

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Abstract

The invention provides coated paper for a stacked battery and a preparation method thereof, wherein, the coated paper comprises base paper and a coating layer coated at the front of the base paper, i.e. single-side coating; and the coating layer is composed of modified starch, polyacrylamide, polyvinyl alcohol, a composite corrosion inhibitor, polyvinyl pyrrolidone and the like. The coated paper for the stacked battery is composed of negative pulp board paper and cup paper (i.e. carbon-clad paper), wherein, the negative pulp board paper has good liquid keeping performance and high isolation performance; and the cup paper has large liquid absorption amount and fast liquid absorption speed, thus meeting the electrical property requirement of high open circuit voltage and low short-circuit current for the stacked zinc-manganese dry cell. The coated paper can meet the industrial production requirement of the stacked battery.

Description

technical field [0001] The invention relates to a pulp-layered paper and a preparation method thereof, and relates to the technical field of dry battery manufacturing, in particular to a pulp-layered paper for manufacturing laminated batteries and a preparation method thereof. Background technique [0002] Laminated zinc-manganese dry batteries and cylindrical zinc-manganese dry batteries have a large difference in electrical performance: the open circuit voltage of laminated zinc-manganese dry batteries is 6-22.5 volts or higher, and the short-circuit current is only 0.5-1 An, while the open circuit voltage of the cylindrical zinc-manganese dry battery is only 1.5-1.7V, and the short-circuit current reaches 3-10A. This requires that the negative electrode pulp paper of the laminated battery pulp paper has better barrier properties than the cylindrical battery pulp paper, and the paper cup paper of the laminated battery pulp paper is better than the cylindrical zinc-manganes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/00D21H19/12D21H23/22D21H23/76H01M50/411H01M50/423
CPCY02E60/12
Inventor 肖勇樊士兴温斌芳
Owner GUANGDONG ZHAOQING MINGZHU PAPER
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