Polymer-lithium batteries and improved methods for manufacturing batteries

a technology of lithium batteries and polymer lithium batteries, applied in the field of thin batteries, can solve the problems of high reactiveness, high cost of lithium, high cost of stamping and handling individual discs of lithium batteries, etc., and achieve the effect of preventing or minimizing electrical shorting

Inactive Publication Date: 2000-08-29
ROUND ROCK RES LLC
View PDF28 Cites 65 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

4. The use of an integral support system (i.e. "studs" provided by the mask layers) that can prevent the separator/electrolyte material from being compressed or pushed into contact with the current collector or displacing the cathode material. This is particularly advant...

Problems solved by technology

This is a relatively labor intensive procedure that involves the intricate assembly of a number of discrete components.
In particular, the stamping and handling of individual discs of lithium is costly and difficult, because lithium is expensive and highly reactive.
In general, this is a relatively complex manufacturing technique which requires relatively complica...

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polymer-lithium batteries and improved methods for manufacturing batteries
  • Polymer-lithium batteries and improved methods for manufacturing batteries
  • Polymer-lithium batteries and improved methods for manufacturing batteries

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

Referring now to FIGS. 1-3, the assembly of a laminated array 10 constructed in accordance with the invention is shown. The laminated array 10 includes a plurality of separate battery cells 12 (FIGS. 2 and 3) that upon formation of the laminated array 10 are singulated to form a plurality of individual batteries. In the illustrative embodiment the laminated array 10 has a square shape and is formed with thirty six separate battery cells 12. Alternately the laminated array may include a lesser or greater number of battery cells.

As shown in FIG. 1, the laminated array 10 is formed in three separate stacks including, a cathode stack 14, a separator / electrolyte stack 16 and an anode stack 18. These stacks 14, 16, 18 can be assembled separately and then lightly pressed together to complete the laminated array 10. The individual battery cells 12 can then be separated or singulated from the laminated array 10 and suitable leads can be formed to the cathode and

anodes of the completed batt...

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
Electrical conductoraaaaaaaaaa
aaaaaaaaaa
Login to view more

Abstract

Improved polymer batteries and improved methods of manufacturing such polymer batteries are provided. One improved method of manufacture involves the formation of a laminated array structure that includes a number of individual battery cells. After formation of the laminated array the individual batteries are singulated from the array by cutting, shearing or stamping. Other manufacturing improvements include the use of a printing process (e.g. stenciling) to form the cathodes, the use of permanent mask layers to contain and insulate the cathodes and anodes, and the use of a molten lithium deposition process for forming the anodes.

Description

CROSS REFERENCES TO RELATED APPLICATIONSThis application is related to copending application filed Jun. 2, 1993 and entitled "Package and Method for Fabricating a Battery Employing An Alkali-Metal Anode and Polymer Film Inks".FIELD OF THE INVENTIONThis invention relates generally to batteries and more particularly to thin batteries constructed with polymer films. Specifically, the invention is directed to improved polymer batteries and improved methods for making polymer batteries.BACKGROUND OF THE INVENTIONAdvancements in semiconductor technology have led to the production of large scale integrated circuits which have brought about a revolution in the electronics industry. Microelectronic components are now widely used in the production of a variety of electronic devices (e.g. portable computers, calculators, watches, cordless telephones, radios, tape recorders, security systems ). Development of such portable electronic devices has brought about the evolution of batteries as minia...

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
IPC IPC(8): H01M4/04H01M10/36H01M10/04H01M10/40H01M6/18H01M6/42H01M6/40H01M10/052H01M10/0565
CPCH01M4/04H01M4/0404H01M4/0414H01M4/0435H01M4/0483H01M6/188H01M10/0436H01M10/052H01M10/0565H01M4/0402Y10T29/49114H01M6/40H01M6/42Y02E60/122Y10T29/49112Y02E60/10Y02P70/50
Inventor LAKE, RICKIE C.TUTTLE, JOHN R.
Owner ROUND ROCK RES LLC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap