Preparation method of high-security aluminum electrolytic capacitor-type lithium cobalt oxide lithium-ion battery

A technology for aluminum electrolytic capacitors and lithium-ion batteries, which is applied in the manufacture of electrolyte batteries, non-aqueous electrolyte batteries, electrode carriers/collectors, etc., can solve problems such as high cost, poor safety, and restrictions on the popularization and application of lithium cobalt oxide, and achieve processing Convenience, avoiding explosion accidents, and improving production efficiency

Active Publication Date: 2016-04-06
齐明鑫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At the same time, lithium cobalt oxide, as the earliest commercially used cathode material for lithium-ion batteries, has the characteristics of stable structure, high capacity ratio, and outstanding comprehensive performance. Popularization and Application of Lithium Cobalt Oxide in the Field of Lithium-ion Batteries

Method used

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  • Preparation method of high-security aluminum electrolytic capacitor-type lithium cobalt oxide lithium-ion battery
  • Preparation method of high-security aluminum electrolytic capacitor-type lithium cobalt oxide lithium-ion battery
  • Preparation method of high-security aluminum electrolytic capacitor-type lithium cobalt oxide lithium-ion battery

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Embodiment 1

[0034] Such as Figure 1~5 As shown, the invention discloses a method for preparing a high-safety aluminum electrolytic capacitor type lithium cobalt oxide lithium-ion battery, comprising the following steps:

[0035] Positive sheet production: 85%-95% by weight of lithium cobalt oxide material is used as positive electrode active material, 1%-10% of conductive agent and 1%-15% of binder are dissolved in solvent to make lithium cobalt oxide positive electrode slurry , with the anode aluminum foil of an aluminum electrolytic capacitor as the positive electrode collector 201, the positive electrode slurry of lithium cobaltate is coated on both sides to the positive electrode collector to form the positive electrode active material layer 202, and the tail of the positive electrode collector 201 is provided with an uncoated positive electrode The positive electrode bare area 203 of the active material layer 202 is then dried to make a pole piece, and then the pole piece is rolled,...

Embodiment 2

[0044] Such as Figure 1~5 As shown, the invention discloses a method for preparing a high-safety aluminum electrolytic capacitor type lithium cobalt oxide lithium-ion battery, comprising the following steps:

[0045] Positive sheet production: 85%-95% by weight of lithium cobalt oxide material is used as positive electrode active material, 1%-10% of conductive agent and 1%-15% of binder are dissolved in solvent to make lithium cobalt oxide positive electrode slurry , with the anode aluminum foil of an aluminum electrolytic capacitor as the positive electrode collector 201, the positive electrode slurry of lithium cobaltate is coated on both sides to the positive electrode collector to form the positive electrode active material layer 202, and the tail of the positive electrode collector 201 is provided with an uncoated positive electrode The positive electrode bare area 203 of the active material layer 202 is then dried to make a pole piece, and then the pole piece is rolled,...

Embodiment 3

[0054] Such as Figure 1~5 As shown, the invention discloses a method for preparing a high-safety aluminum electrolytic capacitor type lithium cobalt oxide lithium-ion battery, comprising the following steps:

[0055]Positive sheet production: 85%-95% by weight of lithium cobalt oxide material is used as positive electrode active material, 1%-10% of conductive agent and 1%-15% of binder are dissolved in solvent to make lithium cobalt oxide positive electrode slurry , with the anode aluminum foil of an aluminum electrolytic capacitor as the positive electrode collector 201, the positive electrode slurry of lithium cobaltate is coated on both sides to the positive electrode collector to form the positive electrode active material layer 202, and the tail of the positive electrode collector 201 is provided with an uncoated positive electrode The positive electrode bare area 203 of the active material layer 202 is then dried to make a pole piece, and then the pole piece is rolled, ...

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Abstract

The invention discloses a preparation method of a high-security aluminum electrolytic capacitor-type lithium cobalt oxide lithium-ion battery. The method comprises a positive plate fabrication procedure, a negative plate fabrication procedure, a negative plate processing procedure, a winding and molding procedure and the like; cathode aluminum foil of an aluminum electrolytic capacitor is attached to double surfaces of a negative exposed region of the negative plate obtained in the negative plate fabrication procedure to obtain a to-be-wound and molded negative plate in the negative plate processing procedure; the positive plate, the negative plate, a diaphragm and release paper are wound and molded in a winding manner to obtain a cylindrical battery core in the winding and molding procedure; the diaphragm is arranged between the negative plate and the negative plate in the winding process; the negative exposed region wraps the positive exposed region and is arranged on the circumference of the outer side of the cylindrical battery core; and the release paper soaked with a capacitor electrolyte is attached to the double surfaces of the diaphragm wound between the negative exposed region and the positive expose region. The preparation method of the high-security aluminum electrolytic capacitor-type lithium cobalt oxide lithium-ion battery disclosed by the invention has the characteristics of being good in security, high in power density, convenient to process and low in cost.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a method for preparing a high-safety aluminum electrolytic capacitor type lithium cobalt oxide lithium ion battery. Background technique [0002] With the rapid development of informatization and intelligence in modern society, as well as the increasingly serious environmental pollution and energy shortage, the society has higher and higher requirements for the capacity and output power of storage devices, and lithium-ion batteries and capacitors have become current research hotspots. Lithium-ion batteries have the advantages of high energy density and low self-discharge rate, but the rate performance is not ideal, the power density is low, and the voltage range of lithium-ion batteries is between 3.0 and 4.1V. When it is higher than 4.1V, the positive electrode material of the battery And the electrolyte is unstable and easy to oxidize, and the surface of the negative electrod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/1397H01M4/66H01M10/0567H01M10/0569H01M10/058H01M10/0587
CPCH01M4/1397H01M4/66H01M4/661H01M10/0567H01M10/0569H01M10/058H01M10/0587Y02E60/10Y02P70/50
Inventor 李朝
Owner 齐明鑫
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