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A kind of bipolar plate for super battery and preparation method thereof

A super battery and plate technology, applied in electrode manufacturing, active material electrodes, etc., can solve problems such as battery water loss, aggravate negative electrode hydrogen evolution, etc., and achieve long life, slow sulfation, and long power charge and discharge life. Effect

Active Publication Date: 2018-09-04
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hydrogen evolution overpotential on the surface of the carbon material is lower than that on the lead surface, thus exacerbating the problem of hydrogen evolution at the negative electrode and causing serious dehydration of the battery

Method used

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  • A kind of bipolar plate for super battery and preparation method thereof
  • A kind of bipolar plate for super battery and preparation method thereof
  • A kind of bipolar plate for super battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] A bipolar plate for a super battery includes a positive plate and a negative plate, and the negative plate is mainly prepared from the following raw materials:

[0071]

[0072]

[0073] The preparation method of the negative plate is as follows:

[0074] Mix the raw materials of the above-mentioned negative plate according to the formula amount at 55°C, and then cure it for 48 hours at 50°C and a relative humidity of 80%. It is formed in the electrolyte, and the amphoteric negative plate is obtained after the formation.

[0075] The positive plate is mainly prepared from the following raw materials:

[0076]

[0077] The preparation method of the positive plate is as follows:

[0078] Mix the raw materials of the above-mentioned positive plate according to the formula amount at 61°C, and then cure for 84 hours at 58°C and a relative humidity of 88%. It is formed in the electrolyte, and the amphoteric positive plate is obtained after the formation.

[0079]...

Embodiment 2

[0081] A bipolar plate for a super battery includes a positive plate and a negative plate, and the negative plate is mainly prepared from the following raw materials:

[0082]

[0083] The preparation method of the negative plate is as follows:

[0084] Mix the raw materials of the above-mentioned negative plate according to the formula amount at 57°C, and then cure it for 60 hours at 53°C and a relative humidity of 83%. It is formed in the electrolyte, and the amphoteric negative plate is obtained after the formation.

[0085] The positive plate is mainly prepared from the following raw materials:

[0086]

[0087]

[0088] The preparation method of the positive plate is as follows:

[0089] Mix the raw materials of the above-mentioned positive plate according to the formula amount at 63°C, and then cure it for 72 hours at 60°C and a relative humidity of 90%. After curing, a semi-finished positive plate is produced, and put the cured semi-finished positive plate It ...

Embodiment 3

[0092] A bipolar plate for a super battery includes a positive plate and a negative plate, and the negative plate is mainly prepared from the following raw materials:

[0093]

[0094] The preparation method of the negative plate is as follows:

[0095] According to the formula quantity, the raw materials of the above-mentioned negative plate are mixed at 59°C, and then cured for 72 hours at 56°C and a relative humidity of 86%. After curing, a semi-finished negative plate is produced, and the cured negative plate semi-finished product is placed It is formed in the electrolyte, and the amphoteric negative plate is obtained after the formation.

[0096] The positive plate is mainly prepared from the following raw materials:

[0097]

[0098] The preparation method of the positive plate is as follows:

[0099] Mix the raw materials of the above-mentioned positive plate according to the formula amount at 55°C, and then cure for 48 hours at 50°C and a relative humidity of 8...

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Abstract

The invention discloses a bipolar plate of a super battery. The bipolar plate comprises a positive plate and a negative plate, wherein the negative plate is prepared from transition metal oxide, namely one or a mixture of at least two of ruthenium dioxide, iridium dioxide and tantalum dioxide. As ruthenium dioxide, iridium dioxide and tantalum dioxide have the characteristics of being equivalent to lead oxide in surface hydrogen-evolution overpotential and being similar to lead dioxide in electronic conductivity, the bipolar plate is prepared by regulating the adding amount of the transition metal oxide and the matching relation between the transition metal oxide and other components in raw material of the negative plate. The super battery prepared with the bipolar plate has high specific energy and specific power, the large-current charge / discharge specific power of the super battery is twice that of an ordinary lead acid battery, the super battery has long high-power charge-discharge service life, and the large-current charge / discharge cycle life of the super battery is prolonged by twice to three times compared with that of a lead carbon battery.

Description

technical field [0001] The invention belongs to the field of electrochemical energy storage devices, and relates to a bipolar plate for a super battery and a preparation method thereof. Background technique [0002] With the development of the automobile industry, the performance requirements of lead-acid batteries are getting higher and higher. However, when traditional batteries are used in HRPSOC (high rate partial state of charge), the service life of the batteries is affected due to the irreversible sulfation of the negative electrode. In order to meet the needs of the development of power batteries, researchers have combined carbon materials with capacitive properties with lead-acid electrode materials, known as super batteries, which play a role in the high conductivity of carbon materials and the ability to quickly accommodate or release charges, while inhibiting sulfuric acid. The lead crystal grows up, prolongs the cycle life, and increases the charging rate. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/02H01M4/04
CPCH01M4/02H01M4/04Y02E60/10
Inventor 谭强强王鹏飞徐宇兴
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI