Positive plate high-temperature pressurization curing process

A curing process and high temperature technology, applied in the direction of sustainable manufacturing/processing, lead-acid battery electrodes, climate sustainability, etc., can solve problems such as poor effect, shortened curing time, long curing process time, etc., to improve curing quality, The effect of shortening the curing time

Pending Publication Date: 2019-04-05
TIANNENG BATTERY WUHU
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of positive plate high-temperature pressurized curing process, which is provided with five steps through the curing stage, six steps in the conversion stage, and six steps in the drying stage. The curing temperature, time, Humidity, circulation fan, cycle period, oxygen supply time, and exhaust time are adjusted to the best, and at the same time, the pressure in the curing chamber is controlled to shorten the curing time, improve the curing quality, and solve the problem of long curing process time and poor effect

Method used

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Embodiment Construction

[0028] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with examples, which are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0029] This embodiment provides that the present invention provides a positive plate high-temperature pressurized curing process, including the following steps:

[0030] Step 1: Curing stage:

[0031] (1) When the temperature is 75°C, the humidity is 99.9%, the speed of the circulating fan is 10hz, the cycle is 100s, the oxygen supply time is 10s, and the pressure is kept at 2kpa for 9 hours;

[0032] (2) When the temperature is 70°C, the humidity is 99.9%, the speed of the circulating fan is 10hz, the cycle period is 100s, the oxygen supply time is 10s, and the pressure is kept at 2kpa for 3 hours;

[0033] (3) When the temperature is 65°C, the humidity is 99%, the speed of the circulat...

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Abstract

The invention provides a positive plate high-temperature pressurization curing process. By setting five steps in a curing stage, six steps in a conversion stage and six steps in a drying stage, a curing temperature, a time, a humidity, a circulation fan, a circulation cycle, an oxygen supplementation time, and a gas discharge time of each step are adjusted to be optimal, at the same time, the pressure in a curing chamber is controlled, the curing time is shortened, the curing quality is ensured, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the field of battery production, in particular to a high-temperature pressurized curing process for positive plates. Background technique [0002] The curing of the pole plate refers to the completion of the oxidation of free lead and lead on the surface of the grid ribs and the recrystallization of basic lead sulfate and hardening process. During the solidification and drying process of the plate, as the mass transfer process of evaporated water proceeds, its network structure is not allowed to be damaged; at the same time, before the water evaporates, the oxidation of metal lead and the oxidation of 3PbO・PbSO4・H2O must also be completed. crystallization process. Therefore, when selecting a curing process, the three parameters of curing temperature, relative humidity and curing time should be strictly controlled. Several functions in the curing process are interrelated. No matter which function is not achieved, the curing e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/20H01M4/21H01M10/12
CPCH01M4/20H01M4/21H01M10/12Y02E60/10Y02P70/50
Inventor 周强华陈林陆毅毛锦敏
Owner TIANNENG BATTERY WUHU
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