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

Non-aqueous electrolyte rechargeable battery

A non-aqueous electrolyte and secondary battery technology, applied in the direction of non-aqueous electrolyte batteries, non-aqueous electrolyte battery electrodes, lithium batteries, etc., can solve the problem of capacity reduction, achieve excellent stability, low reactivity, and inhibit capacity degradation Effect

Inactive Publication Date: 2012-08-15
SANYO ELECTRIC CO LTD
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This reduction in capacity becomes noticeable especially in high temperature environments

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

Examples

Experimental program
Comparison scheme
Effect test

reference example 5

[0075] [Reference Example 5, Comparative Examples 9 and 10, Examples 3 and 4]

[0076] Next, Reference Example 5, Comparative Examples 9 and 10, and Examples 3 and 4 using silicon as the negative electrode active material will be described.

[0077] [Production of positive electrode plate]

[0078] As the positive electrode plate, positive electrode plates produced in the same manner as in the above-mentioned Reference Examples 1 to 4, Comparative Examples 1 to 8, and Examples 1 and 2 were used. And, for the positive electrode plates of Reference Example 5, Comparative Example 9, Examples 3 and 4, the slurry formed by mixing alumina, water-soluble binder and water was applied to the above-mentioned On both sides of the prepared positive electrode plate, an inorganic particle layer with a thickness of about 0.5 μm to 3 μm is formed on the surface of the positive electrode plate.

[0079] [Production of negative electrode active material]

[0080] First, a polysilicon block w...

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
pore sizeaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

Disclosed is a non-aqueous electrolyte rechargeable battery capable of high-voltage recharging, and which alleviates deterioration in charge capacity due to being stored after recharging in low-temperature environments. The non-aqueous electrolyte rechargeable battery (10) with lithium reference cathode active material potential of 4.35-4.60V comprises a cathode pole plate (11), an anode pole plate (12), a non-aqueous electrolyte, and a separator (13). A layer of inorganic particles is disposed upon the surface of the cathode pole plate (11), and holes upon the separator (13) employ an average diameter of 0.15[mu]m-0.3[mu]m, inclusive. The layer of inorganic particles disposed upon the surface of the cathode pole plate (11) would preferably contain either titanium oxide or aluminum oxide.

Description

technical field [0001] The present invention relates to a non-aqueous electrolyte secondary battery, in particular to a separator having an inorganic particle layer and a large pore diameter on the surface of the positive electrode plate, which can be charged at a high voltage and has a capacity after being charged and stored in a high-temperature environment. A non-aqueous electrolyte secondary battery in which deterioration is suppressed. Background technique [0002] Non-aqueous electrolyte secondary batteries represented by lithium-ion secondary batteries with high energy density and high capacity are used as driving power sources for portable electronic devices such as mobile phones, portable personal computers, and portable music players. Power sources for power electric vehicles (HEV) or electric vehicles (EV) are widely used. [0003] As the positive electrode active material of these non-aqueous electrolyte secondary batteries, it is possible to use LiMO, which is ...

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): H01M10/052H01M2/16H01M4/13H01M50/469
CPCH01M4/13H01M4/366H01M10/052Y02E60/10H01M50/469H01M50/489H01M50/431H01M4/133H01M4/134Y02T10/70
Inventor 大栉浩司冲雪寻岩永征人
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