Unlock instant, AI-driven research and patent intelligence for your innovation.

Branched nanostructures for battery electrodes

By using branched nanostructures and electroactive coatings in lithium-ion batteries, the degradation problem of silicon thin films caused by stress expansion in lithium-ion batteries is solved, achieving more efficient and longer-lasting energy storage.

Active Publication Date: 2013-07-17
THE RES FOUND OF STATE UNIV OF NEW YORK
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This causes the silicon to degrade over time, reducing energy storage and battery performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0052] The anode substrate material for Li-ion batteries consists of silicon nanowires grown by a vapor-liquid-solid (VLS) growth process in which the catalyst used is nickel.

[0053] At a base pressure of 1x10 -6 The nickel catalyst layer was deposited on the current collector foil (using stainless steel foil) in a Physical Vapor Deposition (PVD) electron beam evaporator and sampled at room temperature. The deposited nickel layer is approximately 15nm thick and has a purity of 99%.

[0054] The sampling samples were placed inside a horizontal hot-wall chemical vapor deposition (CVD) furnace, where the current collector substrate and catalyst layer were heated to 500 °C under a flow of 200 sccm argon and a reference pressure of 100 Torr. The high temperature causes the catalyst layer to transform into a liquid phase and aggregate into liquid globules. After the temperature stabilized at 500°C, the argon flow of 200 sccm and the reference pressure of 100 Torr were maintained...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
lengthaaaaaaaaaa
purityaaaaaaaaaa
Login to View More

Abstract

The invention relates to electrochemical electrodes containing branched nanostructures and a method for creating said electrodes.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to co-pending US Provisional Patent Application 61 / 377,729, filed August 27, 2010, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present invention relates to electrochemical electrodes comprising branched nanostructures, and methods of producing said electrodes. Background technique [0004] Many electrochemical cells show great promise for future energy storage applications due to their high efficiency, low emissions, and relatively long lifetime. These batteries can be used, for example, in the electric vehicle market, portable electronics, and other home and commercial applications. Lithium-ion (Li-ion) batteries are an example of these electrochemical cells. In general, lithium-ion batteries contain two electrodes (anode and cathode), an electrolyte, and a conductive material such as a current collector. Lithium is a cha...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/1395H01M4/38B82B3/00H01M10/0525H01M4/66
CPCH01M4/664H01M4/667H01M4/78H01M4/66Y02T10/7011H01M10/052H01M4/661H01M4/139H01M4/134Y02E60/122H01M4/663H01M4/0402H01M4/662H01M4/1395H01M4/70H01M4/13H01M4/366Y02E60/10H01M4/38H01M10/0525Y02T10/70
Owner THE RES FOUND OF STATE UNIV OF NEW YORK