Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Lithium anodes for electrochemical cells

An electrochemical and battery technology, applied in the field of lithium anode, can solve the problems of increasing the interface layer resistance, bad, changing the morphology of the deposited layer, etc.

Inactive Publication Date: 2003-04-30
SION POWER CORP
View PDF38 Cites 36 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While this is fine for some protective layers, in other cases this can have undesirable consequences such as increasing the resistance of the interfacial layer or changing the desired morphology of the deposited layer

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

Embodiment 1

[0143] A vacuum web application system in a dry room with unrolled drive unit, liquid cooled drum, battery-carrying roll for tension control, rewind drive unit and two deposition zones loaded with 23 micron thick PET Anode substrate metallized with 100 nm copper on one side. Vacuum the deposition chamber to 10 -6 Torr. First, the thermally evaporated Li source is heated to 550 °C to generate a large amount of evaporation to deposit lithium on the substrate. The web drive was then turned on at a rate of 1.2 feet per minute. The lithium evaporation was stabilized to form an 8 micron lithium layer (PET / Cu / Li) on the copper of the base layer. Raise the DC magnetron cathode sputtering source region behind the lithium source to 2.4m Torr while only raising the lithium evaporation region to 10 -5 torr. The power of the cathode sputtering source was 2kW, and copper was deposited on top of the lithium layer with a thickness of 120, 60 or 30nm to form a composite anode PET / Cu / Li / Cu...

Embodiment 2

[0147] Three copper-protected lithium anodes were made by applying copper to the lithium surface of a PET / copper / lithium anode structure as described in Example 1. The thickness of the copper layer applied on the lithium outer surface was 30, 60 and 120 nanometers. These copper-protected lithium anodes were stored overnight at room temperature.

[0148] A lithium anode protected by copper (PET / copper / lithium / copper) or an uncoated PET / copper / lithium anode was used as a comparison, and a flat small battery was assembled with the fabricated cathode prepared by , a mixture of the following components was applied to one side of an aluminum foil substrate (Product No. 60303, available from Rexam Graphics, South Hadley, Massachusetts) coated with 17 micron thick conductive carbon: 75 parts elemental sulfur (available from Aldrich Chemical Company, Milwaukee, WI), 15 parts of conductive carbon pigment PRINTEXXE-2 (trademark for carbon pigments, available from Degussa Corporation, Ak...

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The present invention provides a lithium positive electrode for an electrochemical cell, wherein the positive active layer has a first layer containing metallic lithium and a second layer of a temporary protective metal, wherein the temporary protective metal is capable of forming an alloy with lithium metal Or a metal capable of diffusing into lithium metal. The invention also provides a method of manufacturing such a positive electrode, an electrochemical cell comprising such a positive electrode, and a method of manufacturing such a battery.

Description

field of invention [0001] The field of the invention relates generally to lithium anodes for electrochemical cells. More specifically, the present invention relates to anodes for electrochemical cells comprising a first layer comprising metallic lithium and a second layer of a temporary protective metal. The invention also relates to methods of forming such anodes, electrochemical cells comprising such anodes and methods of making such cells. background of the invention [0002] Throughout this document, various published patents, published patent applications are cited. The contents of said published patents, published patent applications cited herein are incorporated herein by reference to more fully describe the state of the art in the field to which this invention pertains. [0003] The development of high-energy-density batteries with lithium-containing anodes is of great significance in recent years. Lithium metal is particularly attractive for use as an anode in el...

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): H01M4/66H01M4/04H01M4/134H01M4/137H01M4/1395H01M4/36H01M4/40H01M4/42H01M4/46H01M4/48H01M4/485H01M4/58H01M4/60H01M6/16H01M10/052H01M10/058H01M10/0585H01M10/36H01M50/409
CPCH01M4/485H01M4/661H01M4/42H01M4/463H01M4/137H01M2/16H01M4/581H01M4/5825Y02E60/122H01M4/0495H01M6/16H01M4/1395H01M10/0585H01M4/366H01M4/134H01M4/46H01M4/0411H01M4/667H01M4/0426H01M2300/004H01M10/052H01M4/382H01M4/0423H01M4/0404H01M4/66H01M4/663H01M4/0402H01M4/466H01M4/666H01M4/0421H01M10/058H01M4/0428Y02E60/10Y02P70/50H01M4/02H01M50/409
Inventor T·A·斯格塞姆C·J·希恩Y·V·米克海林克
Owner SION POWER CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com