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Formation Process of Batteries Prepared Using Recycled Lead Powder

A battery and lead powder technology, applied in the field of battery formation technology, can solve the problems of short cycle life, waste of time and energy, etc., and achieve the effect of long cycle life, high initial capacity, and optimization of charging time and discharge current.

Active Publication Date: 2019-12-06
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems of overcharging, short cycle life, waste of time and energy in the prior art, the present invention proposes a battery with high initial capacity, long cycle life, short internalization time, energy saving and environmental protection using recycled lead powder The formation process of the prepared battery

Method used

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  • Formation Process of Batteries Prepared Using Recycled Lead Powder

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 The illustrated embodiment is a formation process of a battery prepared by using recycled lead powder. The formation process is a 3-charge-2-discharge mode, including the following steps:

[0043] (1-1) Before starting to charge, put the battery prepared using recycled lead powder in a water bath for 1 hour;

[0044] (1-2) The first charging stage: charge the battery in multiple stages with a current of 0.02-0.25C, and the charged power is 5.675-9 times the rated capacity of the battery. The specific steps are as follows;

[0045] (1-2-1) Charge the battery with a constant current of 0.02C for 2 hours;

[0046] (1-2-2) Charge the battery with a constant current of 0.12C for 2 hours;

[0047] (1-2-3) Charge the battery with a constant current of 0.15C for 2 hours;

[0048] (1-2-4) Charge the battery with a constant current of 0.175C for 4h;

[0049] (1-2-5) Charge the battery with a constant current of 0.2C for 10h;

[0050] (1-2-6) Charge the batte...

Embodiment 2

[0070] Embodiment 2 comprises all steps of embodiment 1, and embodiment 2 replaces the corresponding steps in embodiment 1 with following steps:

[0071] (1-2) The first charging stage:

[0072] (1-2-1) Charge the battery with a constant current of 0.025C for 1h;

[0073] (1-2-2) Charge the battery with a constant current of 0.125C for 1h;

[0074] (1-2-3) Charge the battery with a constant current of 0.18C for 1h;

[0075] (1-2-4) Charge the battery with a constant current of 0.20C for 3h;

[0076] (1-2-5) Charge the battery with a constant current of 0.25C for 8h;

[0077] (1-2-6) Charge the battery with a constant current of 0.025C for 1h;

[0078] (1-2-7) Charge the battery with a constant current of 0.25C for 8h;

[0079] (1-2-8) Charge the battery with a constant current of 0.025C for 1h;

[0080] (1-2-9) Charge the battery with a constant current of 0.25C for 8h;

[0081] (1-2-10) Charge the battery with a constant current of 0.025C for 1h;

[0082] (1-4) The se...

Embodiment 3

[0094] Embodiment 3 comprises all steps of embodiment 1, and embodiment 3 replaces the corresponding steps in embodiment 1 with following steps:

[0095] (1-2) The first charging stage:

[0096] (1-2-1) Charge the battery with a constant current of 0.023C for 1.5h;

[0097] (1-2-2) Charge the battery with a constant current of 0.123C for 1.5h;

[0098] (1-2-3) Charge the battery with a constant current of 0.165C for 1.5h;

[0099] (1-2-4) Charge the battery with a constant current of 0.187C for 3.5h;

[0100] (1-2-5) Charge the battery for 9 hours with a constant current of 0.23C;

[0101] (1-2-6) Charge the battery with a constant current of 0.023C for 1.5h;

[0102] (1-2-7) Charge the battery for 9 hours with a constant current of 0.23C;

[0103] (1-2-8) Charge the battery with a constant current of 0.023C for 1.5h;

[0104] (1-2-9) Charge the battery for 9 hours with a constant current of 0.23C;

[0105] (1-2-10) Charge the battery with a constant current of 0.023C f...

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Abstract

The invention discloses a chemical formation process of a battery prepared by using recycled lead powder, which comprises the following steps: before starting charging, the battery prepared by using recycled lead powder is placed in a water bath for 0.5-1h; Charge the first stage with a current of -0.25C; discharge the battery with a current of ‑0.25C; charge the second stage with a current of 0.02‑0.25C; discharge the battery with a current of ‑0.5C; discharge the battery with a current of 0.12‑0.25C Carry out the third stage of charging; charge at a current of 0.02‑0.025C for 2‑3h, and start pumping acid. The present invention has the following beneficial effects: the formation process of the 3-charging and 2-discharging mode makes the initial capacity of the battery high and the cycle life long; in the later stage of the first charging stage, the method of alternating charge and formation with large and small currents is used to shorten the internal formation time; the present invention The adopted internal synthesis method is energy-saving and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of battery formation technology, in particular to a battery formation process prepared by using recycled lead powder, which has high initial capacity, long cycle life, short internal formation time, energy saving and environmental protection. Background technique [0002] The formation of lead-acid batteries is a very critical process in the manufacture of lead-acid batteries. The quality of the formation process directly affects the performance and service life of lead-acid batteries. Even for lead-acid batteries with the same formula, same process, and same batch, different currents and different formation times in the formation process will lead to changes in the particle size and arrangement of the active materials. At present, the Shimadzu lead powder with an oxidation degree of 70%-80% prepared by using electrolytic lead and fire-process lead ingots is quite mature after being solidified with paste and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/12
CPCH01M10/12Y02E60/10Y02P70/50
Inventor 代少振徐丹
Owner CHAOWEI POWER CO LTD