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Industrial battery container formation technology

A battery internal and process technology, applied in secondary batteries, lead-acid batteries, electrochemical generators, etc., can solve the problems of poor consistency of battery capacity and open circuit voltage, improve conversion efficiency, reduce charging capacity, and save battery costs Effect

Inactive Publication Date: 2018-07-10
ZHEJIANG TIANNENG POWER ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an internal formation process for industrial batteries to solve the problem of poor consistency of battery capacity and open circuit voltage in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The improved industrial battery formation charging process includes:

[0059] The first step (small current depolarization plate surface polarization): constant current charging current 0.12CA 0.5h;

[0060] The second step (discharge depolarization): constant discharge current 0.12CA 0.1h;

[0061]The third step (transforming active substances): constant charging current 0.12CA 0.5h;

[0062] The fourth step (transforming active substances): constant charging current 0.16CA 7h;

[0063] The fifth step (discharge depolarization, conversion of active substances): constant discharge current 0.12CA 0.1h;

[0064] The sixth step (conversion of active substances): constant charging current 0.15CA 8h;

[0065] The seventh step (discharge depolarization, conversion of active substances): constant discharge current 0.25CA 0.5h;

[0066] The eighth step (conversion of active substances): constant charging current 0.15CA 8h;

[0067] The ninth step (discharge depolarization,...

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PUM

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Abstract

The invention discloses an industrial battery container formation technology, and belongs to the technical field of storage battery production. The industrial battery container formation technology comprises the following steps: (1) charging a battery at 0.1-0.15 C for 0.5-1 h, and discharging the battery to an end voltage; (2) charging the battery at 0.11-0.16 C for 7-10 h, and discharging the battery to the end voltage; (3) repeating step (2) 3-5 times; (4) charging the battery at 0.11-0.16 C for 7-10 h, standing the battery for 0.5-1 h, and discharging the battery to the end voltage; (5) performing auxiliary charging on the battery, and progressively decreasing the charging current; and (6) performing float charging until the voltage is stable. The discharge treatment after the small current charging in the step (1) effectively improves the capacity consistency and the open circuit voltage consistence of the formed battery, and multi-time discharge in different degrees during the formation charging stabilizes the battery temperature, reduces the water loss of an electrolyte and improves the conversion efficiency.

Description

technical field [0001] The invention relates to the technical field of storage battery production, in particular to an internal formation process of industrial batteries. Background technique [0002] The industrial batteries currently on the market are energy storage batteries, and the common industrial batteries are mainly lead-acid batteries. Lead storage battery has a development history of more than 150 years. Although it has low specific energy and short deep cycle life, it is still a secondary battery because of its good power characteristics, small self-discharge, superior high and low temperature performance, mature recycling technology and low cost. It is the mainstream product of batteries, and its sales rank first among secondary batteries, and the sales of valve-regulated industrial batteries account for a considerable proportion of lead-acid batteries. [0003] In the follow-up process of lead-acid battery processing, the battery needs to be internalized to ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H01M10/12
CPCH01M10/12H01M10/446Y02E60/10Y02P70/50
Inventor 张林山陈建丰尹明成潘聪
Owner ZHEJIANG TIANNENG POWER ENERGY