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Method for manufacturing cylindrical solid battery

A solid battery, cylindrical technology, applied in the direction of final product manufacturing, sustainable manufacturing/processing, non-aqueous electrolyte batteries, etc., can solve the problems of complex production process, low safety, high battery matrix requirements, etc., and achieve high energy density , High safety and high performance

Inactive Publication Date: 2019-03-15
浙江药源极马科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Ordinary cylindrical lithium batteries basically use liquid electrolyte as the conductive medium, and the production process is relatively complicated, with high requirements for the battery matrix, the energy density of the battery is very low, and the liquid lithium battery has hidden dangers of leakage, which is harmful to the safety of lithium batteries. Use has a certain impact
[0004] The energy density of conventional lithium-ion batteries is low, 150-200Wh / kg, and the safety is low. It is easy to explode and catch fire in extreme use environments, which will affect personal safety. The energy density of solid-state batteries is high, 200-500Wh / kg. Very high safety, no explosion and fire

Method used

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  • Method for manufacturing cylindrical solid battery
  • Method for manufacturing cylindrical solid battery
  • Method for manufacturing cylindrical solid battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] This embodiment provides a method for manufacturing a cylindrical solid battery, comprising the following steps:

[0054] S1: The No. 1 sleeve is used as the battery case, and the bottom of the No. 1 sleeve is provided with a fixed bottom plate. The middle part of the fixed bottom plate is provided with a protrusion. Put the No. 1 sleeve on the No. There is a groove, and the groove of the No. 2 sleeve is used in conjunction with the protrusion of the fixed bottom plate. The No. 1 packing area is formed between the inner wall of the No. 1 sleeve and the outer wall of the No. 2 sleeve;

[0055] S2: filling the powder positive electrode material in the No. 1 filler area in step S1;

[0056] S3: compacting the powder positive electrode material in step S2 by one-time hot pressing, forming a solid positive electrode after one-time hot pressing;

[0057] S4: Take out the No. 2 sleeve from the No. 1 sleeve, then put the No. 3 sleeve into the No. 1 sleeve, and form the No. 2 f...

Embodiment 2

[0074] This embodiment provides a method for manufacturing a cylindrical solid battery, comprising the following steps:

[0075] S1: The No. 1 sleeve is used as the battery case, and the bottom of the No. 1 sleeve is provided with a fixed bottom plate. The middle part of the fixed bottom plate is provided with a protrusion. Put the No. 1 sleeve on the No. There is a groove, and the groove of the No. 2 sleeve is used in conjunction with the protrusion of the fixed bottom plate. The No. 1 packing area is formed between the inner wall of the No. 1 sleeve and the outer wall of the No. 2 sleeve;

[0076] S2: filling the powder negative electrode material in the No. 1 filler area in step S1;

[0077] S3: compacting the powder negative electrode material in step S2 by one-time hot pressing, forming a solid negative electrode after one-time hot pressing;

[0078] S4: Take out the No. 2 sleeve from the No. 1 sleeve, then put the No. 3 sleeve into the No. 1 sleeve, and form the No. 2 f...

Embodiment 3

[0095] This embodiment provides a method for manufacturing a cylindrical solid battery, comprising the following steps:

[0096] S1: The No. 1 sleeve is used as the battery case, and the bottom of the No. 1 sleeve is provided with a fixed bottom plate. The middle part of the fixed bottom plate is provided with a protrusion. Put the No. 1 sleeve on the No. There is a groove, and the groove of the No. 2 sleeve is used in conjunction with the protrusion of the fixed bottom plate. The No. 1 packing area is formed between the inner wall of the No. 1 sleeve and the outer wall of the No. 2 sleeve;

[0097] S2: filling the powder positive electrode material in the No. 1 filler area in step S1;

[0098] S3: compacting the powder positive electrode material in step S2 by one-time hot pressing, forming a solid positive electrode after one-time hot pressing;

[0099] S4: Take out the No. 2 sleeve from the No. 1 sleeve, then put the No. 3 sleeve into the No. 1 sleeve, and form the No. 2 f...

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Abstract

The invention relates to a method for manufacturing a cylindrical solid battery. The method comprises the following steps of: sleeving a first sleeve on a second sleeve, wherein the first sleeve is abattery housing; filling a powder cathode material or a powder anode material in a first filler region formed between an inner wall of the first sleeve and an outer wall of the second sleeve; compacting the powder cathode material or the powder anode material to form a solid cathode or a solid anode; taking out the second sleeve from the first sleeve, then placing a third sleeve into the first sleeve, and filling a powder solid electrolyte into a second filling region formed between the third sleeve and the solid cathode or the solid anode; compacting the powder electrolyte and filling the powder anode material or the powder cathode material in a middle part of the powder electrolyte; compacting the powder anode material or the powder cathode material and sintering in a tubular furnace, wherein the solid cathode, the solid anode and the solid electrolyte in the first sleeve are formed into a whole; and packaging the first sleeve and then leading out the electrode to become the battery.Since the solid electrolyte is adopted as a conducting medium, the cylindrical solid battery has the advantages of high energy density and high safety performance.

Description

technical field [0001] The invention relates to the technical field of battery preparation, in particular to a method for manufacturing a cylindrical solid battery. Background technique [0002] Cylindrical lithium batteries refer to cylindrical lithium batteries. For example, common models are 14650, 17490, 18650, 21700, 26650, etc. Cylindrical lithium batteries are widely used in notebook computers, digital cameras, lighting fixtures, toy products, power tools, portable mobile phones, etc. energy and other fields. [0003] Ordinary cylindrical lithium batteries basically use liquid electrolyte as the conductive medium, and the production process is relatively complicated, with high requirements for the battery matrix, the energy density of the battery is very low, and the liquid lithium battery has hidden dangers of leakage, which is harmful to the safety of lithium batteries. Use has a certain impact. [0004] The energy density of conventional lithium-ion batteries is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/058
CPCH01M10/058Y02E60/10Y02P70/50
Inventor 叶张军张玉花周晓政张文魁
Owner 浙江药源极马科技发展有限公司