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

Non-aqueous electrolyte battery

A non-aqueous electrolyte and battery technology, applied in the direction of non-aqueous electrolyte batteries, electrolyte battery manufacturing, secondary batteries, etc., can solve the problems of difficult discharge performance and achieve the effect of reducing deterioration

Inactive Publication Date: 2007-04-25
SANYO ELECTRIC CO LTD +1
View PDF0 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to ensure discharge performance and further satisfy safety requirements, etc.

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
  • Non-aqueous electrolyte battery
  • Non-aqueous electrolyte battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Fig. 1 shows an exploded perspective view of an example of a nonaqueous electrolyte battery according to the present invention. In Fig. 1, reference numeral 1 is a nonaqueous electrolyte battery (hereinafter referred to as a battery), reference numeral 2 is a generating element (generating element), reference numeral 3 is a positive plate, and reference numeral 4 is a negative plate. Reference numeral 5 is a separator, reference numeral 6 is a positive terminal, reference numeral 7 is a negative terminal, and reference numeral 8 is a battery casing.

[0022] For the positive plate 3, by mixing 94% by mass of lithium cobaltate as an active material, 3% by mass of acetylene black as a conductive agent, and 3% by mass of polyvinylidene fluoride as a binder, and then The mixture was dispersed in N-methyl-2-pyrrolidone (NMP) to prepare a slurry. The slurry was uniformly coated on a 15 μm thick aluminum foil collector and dried, and then film-pressed with a roll press to pre...

Embodiment 2

[0027] A battery similar to that of Example 1 was fabricated except that the adhesive layer polymer had a mass average molecular weight of 800,000.

Embodiment 3

[0029] A battery similar to that of Example 1 was fabricated except that the mass average molecular weight of the adhesive layer polymer was 1,200,000.

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
melting pointaaaaaaaaaa
melting pointaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

In a non-aqueous electrolyte battery including a generating element having a separator bonded with an adhesive layer between a positive electrode plate and a negative electrode plate, the adhesive layer contains a fluorine-based polymer having a mass average molecular weight of from 500,000 to 1,500,000 and a melting point of from 165° C. to 175° C., and an inorganic-solid filler. The fluorine-based polymer is a polyvinylidene fluoride-based polymer such as a polyvinylidene fluoride homopolymer.

Description

technical field [0001] The present invention relates to a nonaqueous electrolyte battery in which a separator between a positive electrode plate and a negative electrode plate is bonded with an adhesive layer. Background technique [0002] In a polymer electrolyte battery containing a polyelectrolyte in a battery case, for example, between a positive electrode, a negative electrode, and a separator as a separator, leakage of the solution is less likely to occur because the polyelectrolyte enables easy retention of the electrolytic solution. Also, since the polyelectrolyte has a role of bonding the electrodes and the separator, shrinkage of the separator can be reduced when abnormal conditions such as heat generation or overcharging occur, thereby improving safety. [0003] However, after the electrolyte is polymerized, the conductivity of ions tends to decrease and the polarization tends to be greater compared with non-polymerized electrolytes, and especially cycle life char...

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): H01M10/40H01M4/62H01M2/16H01M10/05H01M10/0525H01M10/0565H01M10/058
CPCY02E60/122H01M10/0525Y02E60/12H01M2/1673H01M2/168H01M2/08Y02E60/10H01M50/461H01M50/46Y02P70/50
Inventor 冈本朋仁
Owner SANYO ELECTRIC CO LTD
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