Preparation method of lead storage battery grid alloy

A lead-acid battery and grid technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of low utilization rate of rare earth metals, high energy consumption of rare earth alloys, high impurity content, etc., and achieve high raw material utilization rate and low impurity content The effect of less and high process controllability
CN108467968AActive Publication Date: 2018-08-31TIANNENG BATTERY GROUP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANNENG BATTERY GROUP
Publication Date
2018-08-31

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Abstract

The invention discloses a preparation method of lead storage battery grid alloy. The preparation method comprises the following steps that 1, aluminum-lanthanum-cerium rare earth master alloy is prepared through a molten salt electrolysis method; 2, the aluminum-lanthanum-cerium rare earth master alloy, sodium and part of lead are fused and evenly stirred to prepare intermediate alloy; 3, the intermediate alloy, calcium, tin and residual lead are fused and uniformly stirred to prepare the lead storage battery grid alloy. The rare earth master alloy is prepared through the molten salt electrolysis method, compared with the mode that rare earth element elementary substances are prepared from oxide first and then the simple substances are directly used for preparing alloy, the rare earth master alloy prepared through the preparation method is stable in component and less in impurity content, and the utilization rate of raw materials is higher; the rare earth oxide is directly used as theraw material, the raw materials are more easily available, and the utilization rate of rare earth metal reaches 90% or above; then the intermediate alloy is prepared to produce work alloy; the components are more uniform; the process controllability is high.
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Description

technical field

[0001] The invention relates to the technical field of lead storage battery production, in particular to a preparation method of a lead storage battery grid alloy. Background technique

[0002] Lead storage battery is a reversible DC power supply, which can convert chemical energy into electrical energy, and also convert electrical energy into chemical energy. Lead storage battery is mainly composed of electrolyte, battery tank and pole group. The electrolyte of lead storage battery is sulfuric acid solution. The pole group is mainly composed of positive plate, negative plate and separator. The separator is mainly used to store electrolyte and serve as oxygen The composite gas channel plays a role in preventing active material falling off and short circuit between positive and negative electrodes.

[0003] In the process of battery production and processing, the grid is used as the carrier and conductor of the lead paste. The lead paste can only become a pla...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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