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Novel lithium-ferrous chloride battery based on garnet solid electrolyte and preparation method thereof

A solid electrolyte, ferrous chloride technology, used in inorganic electrolytes, non-aqueous electrolytes, secondary batteries, etc., can solve problems such as ceramic tube corrosion, achieve good conductive paths, high-quality energy density and volume energy density, good Effects of Cyclic Stability

Active Publication Date: 2020-06-12
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current research, there is a lack of effective solutions that can effectively inhibit the growth of metallic iron particles and prevent corrosion of ceramic tubes.

Method used

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  • Novel lithium-ferrous chloride battery based on garnet solid electrolyte and preparation method thereof
  • Novel lithium-ferrous chloride battery based on garnet solid electrolyte and preparation method thereof
  • Novel lithium-ferrous chloride battery based on garnet solid electrolyte and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] S1, LiCl and AlCl with a content of 99.9% 3 Mix well in the glove box, then transfer the mixture to an aluminum container, put it in the muffle furnace in the glove box, heat up to 100°C within 20 minutes, then keep at 100°C for 4 hours; then heat up to 160C within 20 minutes , kept at 160°C for 6 hours, and finally raised to 200°C within 20 minutes, and kept at 200°C for 3 hours to make LiAlCl 4 Secondary electrolyte for backup;

[0031] S2. Weigh LiI and CsI with a mass ratio of 1:0.9 in the glove box and mix them in a glass bottle, transfer to the muffle furnace in the glove box and heat to 300°C, keep it warm for 1 hour, after the sample is completely melted, use a stainless steel rod Skim off the upper layer of foam, then pour the melt onto stainless steel foil, grind it into powder after solidification, and make LiI-CsI mixture for later use;

[0032] S3. Preparation of lead-sealed shell: Fill the stainless steel shell with lead grains, place it in the muffle fu...

Embodiment 2

[0035] S1, LiCl and AlCl with a content of 99.9% 3 Mix well in the glove box, then transfer the mixture to an aluminum container, put it in the muffle furnace in the glove box, heat up to 100°C within 20 minutes, then keep at 100°C for 4 hours; then heat up to 160C within 20 minutes , kept at 160°C for 6 hours, and finally raised to 200°C within 20 minutes, and kept at 200°C for 3 hours to make LiAlCl 4 Secondary electrolyte for backup;

[0036] S2. Weigh LiI and CsI with a mass ratio of 1:0.98 in the glove box and mix them in a glass bottle, transfer to the muffle furnace in the glove box and heat to 300°C, keep it warm for 1 h. After the sample is completely melted, use a stainless steel rod Skim off the upper layer of foam, then pour the melt onto stainless steel foil, grind it into powder after solidification, and make LiI-CsI mixture for later use;

[0037] S3. Preparation of lead-sealed shell: Fill the stainless steel shell with lead grains, place it in the muffle furn...

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Abstract

The invention discloses a novel lithium-ferrous chloride battery based on garnet solid electrolyte and a preparation method of the novel lithium-ferrous chloride battery. The novel lithium-ferrous chloride battery comprises a stainless steel shell and a U-shaped ceramic tube, wherein a lead sealing layer, a silica gel filling layer, a positive electrode material layer and a molten lithium metal layer are filled in the stainless steel shell; wherein the lead sealing layer is filled in a positive electrode shell of the stainless steel shell, and an insulating glue barrier layer is packaged between the stainless steel shell and the positive electrode shell; the U-shaped ceramic tube is filled with the positive electrode material layer; the molten lithium metal layer is hermetically filled ina negative electrode gap between the stainless steel shell and the U-shaped ceramic tube; the upper opening end of the U-shaped ceramic tube is embedded into the silica gel filling layer; a graphite rod is coaxially arranged in the U-shaped ceramic tube; the upper end of the graphite rod penetrates through the silica gel filling layer and extends into the lead sealing layer, and the lower end of the graphite rod is embedded into the positive electrode material layer; and a stainless steel pipe is sleeved on the excircle of the graphite rod, which is in contact with the silica gel filling layer.

Description

technical field [0001] The invention relates to a novel electrochemical energy storage battery, in particular to a solid-state lithium-ferrous chloride battery based on garnet ceramic electrolyte and a preparation method thereof. Background technique [0002] As a promising energy storage technology, solid electrolyte liquid metal battery avoids the problems of self-discharge, dendrite growth and surface layer passivation of traditional organic electrolyte battery, and effectively improves the safety and reliability of the battery. The most common case for realizing this concept is the Zebra (ZEBRA) battery, which has higher safety than other solid electrolyte liquid metal batteries. The main surface is in the following two aspects: (1) Zebra battery has a unique overcharge / overdischarge protection mechanism, NaAlCl 4 The molten salt electrolyte can play an effective buffer role in the process of overcharging / overdischarging, and successfully prevents the ion exchange betwe...

Claims

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Application Information

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IPC IPC(8): H01M10/38H01M10/39
CPCH01M10/38H01M10/39H01M10/399H01M2300/0022Y02E60/10Y02P70/50
Inventor 徐晶金阳刘凯徐亮亮
Owner ZHENGZHOU UNIV
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