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A kind of magnesium-based composite material and its application in lead-acid storage battery and the method for using this material to prepare lead-acid storage battery

A composite material and nanocomposite material technology, applied in the field of preparation and application in lead-acid batteries, can solve the problems of low energy density, low capacity and short cycle life of batteries, and achieve battery capacity improvement, high rate, low temperature and low temperature. Good safety performance

Active Publication Date: 2017-02-22
李宏斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the fact that the traditional lead-acid battery cannot be charged and discharged at a low temperature of -40°C, the energy density of the battery is small, the capacity is low and the cycle life is short, which limits its application.

Method used

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  • A kind of magnesium-based composite material and its application in lead-acid storage battery and the method for using this material to prepare lead-acid storage battery
  • A kind of magnesium-based composite material and its application in lead-acid storage battery and the method for using this material to prepare lead-acid storage battery
  • A kind of magnesium-based composite material and its application in lead-acid storage battery and the method for using this material to prepare lead-acid storage battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] A method for preparing an ultra-low temperature long-life high-capacity magnesium-based lead-acid storage battery, comprising the following steps:

[0061] 1) Preparation of magnesium-based composite materials

[0062] 1.1) Preparation of magnesium alloy

[0063] Mix metal magnesium, cobalt, nickel, lead, copper, titanium, vanadium and zinc powder (200 mesh) according to the mass ratio of 20:0.2:0.5:0.3:0.2:0.1:0.2:0.1, under argon atmosphere, 900 The magnesium alloy was prepared by smelting at ℃, and the prepared magnesium alloy was crushed into a 350-mesh magnesium alloy powder.

[0064] 1.2) Preparation of magnesium alloy / graphene composite

[0065] The graphene powder preparation method adopts the improved Hummer method.

[0066] Adopt natural flake graphite powder (Qingdao City Laixi Jinrilai Electronic Material Factory 325 mesh, more than 99.4%) 2 grams, place three-necked flask in ice-water bath, under stirring with polytetrafluoroethylene stirring bar, slowly...

Embodiment 2

[0088] A method for preparing an ultra-low temperature long-life high-capacity magnesium-based lead-acid storage battery, comprising the following steps:

[0089] Embodiment 2 reaction environment and condition are the same as embodiment 1, difference is:

[0090] Step 1) Prepare a magnesium alloy / graphene nanocomposite material coated with magnesium oxide (the mass percentage of magnesium oxide and magnesium alloy / graphene nanocomposite material is 2%).

[0091] Step 2) The mass ratio of the magnesium-based composite material to other components of the positive and negative electrodes is 18:82.

[0092] According to the above steps, a 12V magnesium-based lead-acid battery with an overall size of 494×238×224 and a mass of 63.55Kg was prepared;

[0093] According to the above steps, a 12V magnesium-based lead-acid energy storage battery with dimensions length×width×height (mm) of 197×160×174 and a mass of 13.50Kg was prepared.

Embodiment 3

[0095] A method for preparing an ultra-low temperature long-life high-capacity magnesium-based lead-acid storage battery, comprising the following steps:

[0096] Embodiment 3 reaction environment and condition are the same as embodiment 1, difference is:

[0097]Step 1) Prepare a zinc oxide-coated magnesium alloy / graphene nanocomposite material (the mass percentage of zinc oxide and magnesium alloy / graphene nanocomposite material is 2%).

[0098] Step 2) The mass ratio of the magnesium-based composite material to other components of the positive and negative electrodes is 15:85.

[0099] According to the above steps, a 12V magnesium-based lead-acid battery with an overall size of 494×238×224 and a mass of 63.55Kg was prepared;

[0100] According to the above steps, a 12V magnesium-based lead-acid energy storage battery with dimensions length×width×height (mm) of 197×160×174 and a mass of 13.50Kg was prepared.

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Abstract

The invention discloses a magnesium-based composite material and application of the material in a lead acid storage battery as well as a method for preparing the lead acid storage battery by utilizing the material. The preparation method of the magnesium-based lead acid storage battery with ultra-low temperature, long service life and high capacity comprises the following steps: preparing a magnesium alloy at first; preparing the magnesium-based composite material; mixing the prepared magnesium-based composite material with positive and negative electrode materials of the lead acid battery to prepare paste; preparing an un-formed magnesium-based lead acid storage battery according to the preparation method and the process condition of the standard lead acid storage battery; and preparing the magnesium-based lead acid storage battery according to a certain formation condition. The prepared magnesium-based lead acid storage battery has the characteristics of ultra-low temperature, high capacity, high magnification and long cycle life, and has a good industrial application prospect; the performance of the magnesium-based lead acid storage battery is obviously superior to that of the traditional lead acid storage battery.

Description

technical field [0001] The invention belongs to the technical field of battery materials and batteries, and in particular relates to the preparation of a novel magnesium-containing battery material and its application in lead-acid batteries. Background technique [0002] Lead-acid batteries are widely used in power and energy storage. However, due to the fact that the traditional lead-acid battery cannot be charged and discharged at a low temperature of -40°C, the energy density of the battery is small, the capacity is low, and the cycle life is short, which limits its application. Contents of the invention [0003] In order to simultaneously improve the low-temperature charge-discharge performance, battery capacity and cycle performance of lead-acid batteries, the invention proposes a magnesium-based composite material, the application of the material in lead-acid batteries and a method for preparing lead-acid batteries using the material. [0004] Technical solution of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/14H01M4/16H01M4/46
CPCY02E60/10
Inventor 李宏斌
Owner 李宏斌
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