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Solid-state lithium-ion battery of hybridized nanostructure and preparation method of solid-state lithium-ion battery

A lithium-ion battery and nanostructure technology, applied in the field of lithium-ion batteries, can solve problems such as poor safety and low energy density, achieve the effect of large and orderly specific surface area, and improve ionic conductivity

Inactive Publication Date: 2018-01-16
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional liquid electrolyte lithium-ion batteries have many defects such as low energy density and poor safety. In contrast, solid-state lithium-ion batteries have high safety, long cycle life, high specific capacity and high energy density, but their low ionic conductivity is the biggest bottleneck restricting its development

Method used

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  • Solid-state lithium-ion battery of hybridized nanostructure and preparation method of solid-state lithium-ion battery
  • Solid-state lithium-ion battery of hybridized nanostructure and preparation method of solid-state lithium-ion battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] Step 1, transplanting an ultra-thin anodized aluminum (AAO) transplantation template onto an ITO substrate. The size specifications of the template are: the pore diameter is 80nm, the thickness is 100-500nm, and the hole spacing is 50-100nm.

[0021] Step 2, adopting the method of magnetron sputtering, sputtering, depositing, and filling lithium lanthanum titanate in the holes of the template to form a nano-column array. Specifically, the lithium lanthanum titanate target uses Li 0.33 La 0.557 TiO 3 .

[0022] Step 3. Put the ITO substrate prepared in step 2 into a 1mol / L sodium hydroxide (NaOH) solution, react at room temperature for 24 hours, and erode the anodized aluminum template to obtain a lithium lanthanum titanate nanocolumn array.

[0023] Step 4, dissolve 0.2g of PAN in 10mL of DMF, then add 0.241g of LiClO 4 , the solution was spin-coated on the ITO substrate prepared in step 3 by spin-coating method, and baked in a vacuum oven at 80°C for 24 hours to e...

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Abstract

The invention belongs to the technical field of lithium-ion batteries, and particularly discloses a solid-state lithium-ion battery of a hybridized nanostructure and a preparation method of the solid-state lithium-ion battery. A solid-state lithium-ion battery structure hybridized by an LLTO nanometer column array and an organic polymer electrolyte is designed. A more orderly penetrating channel is provided for lithium ion transportation in the battery through the nanometer column array, and the specific surface area of a phase interface is large and ordered, thereby improving the ionic conductivity and providing a powerful foundation for research on a conduction mechanism of the hybridized electrolyte.

Description

technical field [0001] The invention belongs to the technical field of lithium-ion batteries, in particular to a hybrid nanostructure solid-state lithium-ion battery and a preparation method thereof. Background technique [0002] Lithium-ion batteries, as important energy storage components, have a wide range of applications in consumer electronics, electric vehicles, and renewable energy storage. Traditional liquid electrolyte lithium-ion batteries have many defects such as low energy density and poor safety. In contrast, solid-state lithium-ion batteries have high safety, long cycle life, high specific capacity and high energy density, but their low ionic conductivity It is the biggest bottleneck restricting its development. [0003] Lanthanum lithium titanate (LLTO) is one of the electrolyte materials with the highest room temperature ionic conductivity reported in the literature, and its ionic conductivity is as high as 10 -3 S cm -1 . In recent years, adding LLTO lo...

Claims

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Application Information

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IPC IPC(8): H01M10/058H01M10/0562H01M10/0565B82Y30/00
CPCY02E60/10Y02P70/50
Inventor 向勇孙赫张晓琨
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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