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Preparation method and packaging process of sealing glass material for lithium-manganese dioxide battery cover group

A manganese dioxide, sealing glass technology, applied in the direction of sealing materials, etc., can solve the problems of battery life and performance limitations, easy battery leakage, poor resistance to electrolyte corrosion, etc.

Pending Publication Date: 2021-04-13
XIAN SEAL ELECTRONICS MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the glass used for the sealing of the lithium-manganese dioxide battery cover group commonly used is mostly high silicate glass, which has poor electrolyte corrosion resistance and poor mechanical vibration resistance. are severely limited, and the glass of the present invention belongs to low silicate glass

Method used

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  • Preparation method and packaging process of sealing glass material for lithium-manganese dioxide battery cover group
  • Preparation method and packaging process of sealing glass material for lithium-manganese dioxide battery cover group

Examples

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preparation example Construction

[0041] The preparation method for the sealing glass material of lithium-manganese dioxide battery cover group comprises the following steps:

[0042] 1), select raw materials according to the following molar percentages:

[0043] SiO 2 : 40%~60%,

[0044] B 2 o 3 : 5%~25%,

[0045] Al 2 o 3 : 0%~5%,

[0046] BaO: 5% to 15%,

[0047] Na 2 O: 5% to 15%,

[0048] K 2 O: 0% to 5%,

[0049] MgO: 0% to 5%,

[0050] CaO: 0% to 5%,

[0051] TiO 2 : 0%~5%,

[0052] ZrO 2 : 0%~5%,

[0053] ZnO: 0% to 5%,

[0054] Cr 2 o 3 : 0%~5%,

[0055] Among them, various oxides should include various salts and acid-base compounds;

[0056] 2) Prepare the above-mentioned raw materials and place them in an ultra-high-speed disperser for mixing and dispersing, so that various raw materials can be mixed and dispersed evenly;

[0057] 3) Put the uniformly mixed materials in the crucible, place the crucible in a silicon-molybdenum furnace, and raise the temperature from room temperat...

Embodiment 1

[0070] 1), a sealing glass material for lithium-manganese dioxide battery cover group, prepared from the following raw materials in terms of molar mass ratio: SiO 2 : 40%, B 2 o 3 : 25%, Al 2 o 3 : 3%, BaO: 8%, Na 2 O: 11%, K 2 O: 3%, MgO: 3%, CaO: 3%, TiO 2 : 1%, ZrO 2 : 1%, ZnO: 2%.

[0071] 2) Prepare the above-mentioned raw materials and place them in an ultra-high-speed disperser for mixing and dispersing, so that various raw materials can be mixed and dispersed evenly;

[0072] 3) Put the uniformly mixed materials in the crucible, place the crucible in a silicon-molybdenum furnace, and raise the temperature from room temperature to 300-600°C at a rate of 8-10°C / min in an air atmosphere, and at 300-600°C Keep warm for 30-60 minutes to promote the decomposition of various salts and acid-base compounds, then raise the temperature to 1500-1700°C at a rate of 8-10°C / min, and keep warm at 1500-1700°C for 1-2 hours; stir several times during the period , make the melti...

Embodiment 2

[0080] 1), a sealing glass material for lithium-manganese dioxide battery cover group, prepared from the following raw materials in terms of molar mass ratio: SiO 2 : 45%, B 2 o 3 : 20%, Al 2 o 3 : 3%, BaO: 8%, Na 2 O: 11%, K 2 O: 3%, MgO: 3%, CaO: 3%, TiO 2 : 1%, ZrO 2 : 1%, ZnO: 2%.

[0081] 2) Prepare the above-mentioned raw materials and place them in an ultra-high-speed disperser for mixing and dispersing, so that various raw materials can be mixed and dispersed evenly;

[0082] 3) Put the uniformly mixed materials in the crucible, place the crucible in a silicon-molybdenum furnace, and raise the temperature from room temperature to 300-600°C at a rate of 8-10°C / min in an air atmosphere, and at 300-600°C Keep warm for 30-60 minutes to promote the decomposition of various salts and acid-base compounds, then raise the temperature to 1500-1700°C at a rate of 8-10°C / min, and keep warm at 1500-1700°C for 1-2 hours; stir several times during the period , make the melti...

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Abstract

The invention belongs to the field of sealing glass and preparation thereof, and particularly relates to a preparation method and a packaging process of a sealing glass material for a lithium- manganese dioxide battery cover group. The preparation method of the sealing glass material for the lithium-manganese dioxide battery cover group comprises the following steps: 1) selecting the following raw materials in molar percentage: 40-60% of SiO2, 5-25% of B2O3, 0-5% of Al2O3, 5-15% of BaO, 5-15% of Na2O, 0-5% of K2O, 0-5% of MgO, 0-5% of CaO, 0-5% of TiO2, 0-5% of ZrO2, 0-5% of ZnO and 0-5% of Cr2O3, wherein various oxides should comprise various salts and acid-base compounds thereof. According to the preparation method of the sealing glass material for the lithium-manganese dioxide battery cover group and the sealing process of the sealing glass material, the corrosion resistance of the lithium-manganese dioxide battery cover group glass is improved, the air tightness of a sealing piece is guaranteed, the chemical stability and high-temperature and high-pressure insulativity of the sealing piece are improved, and the preparation process is simple, and suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of sealing glass and its preparation, and in particular relates to a preparation method and packaging process of a sealing glass material used for a lithium-manganese dioxide battery cover group. Background technique [0002] Lithium-manganese dioxide battery is a Li / MnO 2 The electrolyte battery has a nominal voltage of up to 30V, a nominal capacity of up to 68Ah, and an operating temperature of -60°C to +70°C. Provide excellent performance, low self-discharge rate, can be stored for more than 5 years before use, strong structure design, even if stored at various temperatures for a long time, still has excellent passivation resistance characteristics, at -20 ° C Unparalleled Performance Some battery models feature a charge status indicator. It can be used in extremely harsh environments, so it is widely favored in civilian, special and military applications. [0003] With the development of the Internet of Things ...

Claims

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Application Information

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IPC IPC(8): C03C8/24C03C29/00H01M50/171
CPCC03C8/24C03C29/00Y02E60/10
Inventor 王哲华斯嘉冯庆刘卫红杨文波乔星徐绍华郗雪艳
Owner XIAN SEAL ELECTRONICS MATERIAL TECH CO LTD
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