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Hybrid two- and three-component host-guest nanocomposites and method for manufacturing the same

A nano-composite material and hybrid technology, applied in the field of preparing the nano-composite material, can solve the problems of material stability defects and the like

Active Publication Date: 2013-08-07
GM GLOBAL TECH OPERATIONS LLC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

for V 2 o 5 case, deficient in terms of material stability during charge / discharge cycles

Method used

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  • Hybrid two- and three-component host-guest nanocomposites and method for manufacturing the same
  • Hybrid two- and three-component host-guest nanocomposites and method for manufacturing the same
  • Hybrid two- and three-component host-guest nanocomposites and method for manufacturing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] V 2 O 5 Preparation of xerogel

[0071] By adding 15g of crystalline V 2 O 5 Dissolve it in 1.5L 10% hydrogen peroxide solution and age it in the air for two weeks to prepare V 2 O 5 Xerogel. V is obtained by evaporating the solution at 100°C 2 O 5 In the form of powder, and make it dry at 120 ℃, while V 2 O 5 The interlayer distance between the channels becomes 1.14-1.19 nm, preferably 1.15-1.16 nm.

Embodiment 2

[0073] PAn-V 2 O 5 Of type hybrid nanocomposite

[0074] By adding 3g of the dry gel V of Example 1 2 O 5 And 0.186g of chlorinated aniline recrystallized in water in advance and 30 1cm diameter spherical agate grinding media were combined in an 80mL grinding jar to prepare PAn and V 2 O 5 A two-component hybrid host-guest nanocomposite material. The weight ratio of reactant to grinding media is about 1:14. The mixture was mechanochemically treated for 8 hours using a planetary ball mill Pulverizette 6 at a stirring speed of 300 rpm. The product is separated from the grinding media by dry sieving and purified by 20-fold extraction with acetonitrile in a Soxlet device. Finally obtained the nanocomposite PAn 0.11 V 2 O 5 .

Embodiment 3

[0076] PPy-V 2 O 5 Of type hybrid nanocomposite

[0077] By adding 3g of the dry gel V of Example 1 2 O 5 And 0.098mL of pyrrole distilled in an argon atmosphere in advance and 30 1cm diameter spherical agate grinding media were combined in an 80mL grinding jar to prepare based on PPy and V 2 O 5 A two-component hybrid host-guest nanocomposite material. The weight ratio of reactant to grinding media is about 1:14. The mixture was mechanochemically treated for 8 hours using a planetary ball mill Pulverizette 6 at a stirring speed of 300 rpm. Product-PPy 0.1 V 2 O 5 Nanocomposites-separated from the grinding media by dry sieving.

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Abstract

Hybrid organic-inorganic nanocomposites useful as cathodes in high discharge capacity lithium batteries are provided. The nanocomposite consists of V 2 o 5 Macromolecules inside the interlayer channel. These macromolecules include conductive conjugated polymers or combinations of conductive conjugated polymers and ionically conductive polymers. The nanocomposite has high charge / discharge characteristics. Also provided is a solvent-free mechanochemical method for preparing the hybrid organic-inorganic nanocomposite.

Description

Technical field [0001] The invention relates to a hybrid organic-inorganic nanocomposite material that can be used as an active component of a lithium battery cathode, and to a method for preparing the nanocomposite material. Background technique [0002] Lithium batteries are energy storage and generation devices that can be charged and discharged. This battery is widely used as a self-sufficient energy source for various portable electronic devices (such as mobile phones, cameras, audio record players, portable computers, etc.). The development of batteries that are light in weight and have higher charge / discharge capacity is an important issue of self-sufficiency. [0003] A typical lithium battery includes a cathode, electrolyte, and anode. The charge / discharge characteristics of the cathode material are important factors that determine the energy storage capacity. Crystalline oxides based on cobalt, manganese, nickel, and vanadium are the most studied materials for cathode ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/02C08G73/06C08G61/12C08K3/22C08L79/02C08L79/04C08L65/00H01M4/1391H01M4/62B82Y30/00B82Y40/00
CPCC08G2261/3221C08G73/0266H01M10/0472C08L65/00H01M10/052H01M10/0525H01M4/137H01M4/485H01M4/604C08K2201/001C08G61/124H01M4/602Y02E60/122H01M4/60C08G2261/964H01M4/606C08G61/126C08G2261/3223B82Y30/00Y02E60/10
Inventor O·Y·波苏迪夫斯基O·A·冈查鲁克V·S·戴亚云V·G·科谢奇科S·W·约尔根森V·D·波科登科
Owner GM GLOBAL TECH OPERATIONS LLC