Preparation method of cathode active substance for lead carbon battery

A negative electrode active material, lead-carbon battery technology, applied in the direction of lead-acid battery electrodes, etc., can solve the problems of inability to integrate the characteristics of super capacitors, reduce the strength of the plate, reduce the cycle life and other problems, and improve the high current charge and discharge capacity and cycle life. performance, inhibition of sulfation, and the effect of improving utilization

Inactive Publication Date: 2015-04-29
SHUANGDENG GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the large difference in density between the carbon material and the lead powder, it is difficult to disperse the carbon material evenly by using the existing mixing and paste method, which makes the combination of the lead paste and the plate worse, making it more difficult to apply the paste, and the plate Reduced strength
This will not only fail to integrate the characteristics of the supercapacitor into the battery, but will degrade the performance of the battery and reduce the cycle life

Method used

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  • Preparation method of cathode active substance for lead carbon battery
  • Preparation method of cathode active substance for lead carbon battery
  • Preparation method of cathode active substance for lead carbon battery

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Embodiment Construction

[0018] In the following, the present invention will be further described through the specific operation of the examples and the test and comparison of batteries produced by the present invention and the existing method respectively.

[0019]

[0020] Note: % in the table are all mass percentages; the density of sulfuric acid used is 1.35g / cm 3 ; The dry mixing, wet mixing, and acid mixing materials are the same as those described above in the description, and the acid mixing time includes the acid adding time and the continuation stirring time after adding the acid.

[0021] The technology not involved in the specific operation of the embodiment is the same as the existing process; the temperature during the preparation of the lead paste does not exceed 72°C, and the temperature of the paste is controlled at 50-55°C.

[0022] Manually smear the lead paste produced by the above-mentioned blending process and the lead paste produced by the current process, and mark the two ty...

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Abstract

The invention discloses a preparation method of a cathode active substance for a lead carbon battery, and belongs to the technical field of the manufacturing of lead-acid storage batteries. The special lead carbon battery and a paste device are adopted, the components are mixed in the optimum proportion, and the dry mixing time, the wet mixing time and the acid mixing time in all steps are controlled, so that cathode lead paste for the lead carbon battery, which is good in production quality (the dispersity of carbon material is good), is controllable in process, and satisfies the requirements for battery performance, is obtained. Through the adoption of the lead paste, the large-current charging and discharging receptivity of the battery, and the cycle performance of the battery under a partial state of charge can be obviously improved, and the sulfation of the surfaces of electrodes can be inhibited, so that the battery has high power capacity and long cycle life.

Description

technical field [0001] The invention relates to a method for preparing a negative electrode active material of a lead-carbon battery, and belongs to the technical field of lead-acid battery production. Background technique [0002] Lead-acid batteries have many advantages such as wide source of raw materials and easy availability, low cost, high safety, stable performance, and recyclability, and they still occupy a very considerable market share today. With the advancement and development of science and technology, various industries have put forward new requirements for lead-acid batteries. Improving specific capacity and cycle life and reducing product weight are problems that need to be solved urgently. [0003] Lead-carbon battery is a new type of super battery, which is a combination of traditional lead-acid battery and super capacitor. It not only takes advantage of the advantages of supercapacitor instantaneous large-capacity charging, but also takes advantage of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/16H01M4/21
CPCH01M4/16H01M4/21Y02E60/10
Inventor 唐万明肖振华
Owner SHUANGDENG GRP
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