METHOD FOR PREPARING POSITIVE PLATE AND LEAD STORAGE BATTERY

WIPO Patent Application WO/2022/174585

A1

The present application relates to the technical field of lead storage batteries and discloses a method for preparing a positive plate and a lead storage battery. The method for preparing a positive plate comprises the following steps: (1) preparing a positive plate grid; (2) soaking of the positive plate grid: soaking the positive plate grid in a cobalt phosphate suspension containing 100 parts of pure water and 3-5 parts of cobalt phosphate; (3) drying and cooling of the positive plate grid: first putting the soaked positive plate grid in an environment having a relative humidity of 70%-80% and a temperature of 50-60°C for standing for 3-5 h, then putting same in an environment having a relative humidity of 30%-40% and a temperature of 50-60°C for standing for 5-8 h, and finally putting same in an environment having a relative humidity of 30%-40% for lowering the temperature to room temperature within 2 h; (4) preparing a paste; and (5) coating. The positive plate grid prepared in the present application is more corrosion-resistant, and the discharge cycle service life of the prepared lead storage battery is prolonged.

ZHUANG JIAN (CN)
ZHANG TIANREN (CN)
ZHOU JIANZHONG (CN)
OUYANG WANZHONG (CN)
CHEN QINZHONG (CN)
ZHOU WENWEI (CN)
FANG ZHAOKUN (CN)

PCT/CN2021/119491

August 25, 2022

September 22, 2021

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TIANNENG BATTERY GROUP CO LTD (CN)

H01M4/73

CN112786898A	2021-05-11
CN111416126A	2020-07-14
CN101515643A	2009-08-26
CN102324500A	2012-01-18
CN110380059A	2019-10-25
CN103490043A	2014-01-01
CN104241641A	2014-12-24
US20030157405A1	2003-08-21

BEIJING RAINBOW XINGYUAN INTELLECTUAL PROPERTY LAW FIRM (CN)

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