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

Non-aqueous electrolytic secondary cell

An electrolyte and battery technology, applied in secondary batteries, battery pack components, circuits, etc., can solve the problems of deterioration of charge-discharge performance and uneven distance

Inactive Publication Date: 2007-05-23
GS YUASA INT LTD
View PDF1 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, since the power generating element is subjected to a small pressure, the distance between electrodes in the power generating element is caused to be uneven, resulting in deterioration of charge-discharge 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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Non-aqueous electrolytic secondary cell
  • Non-aqueous electrolytic secondary cell
  • Non-aqueous electrolytic secondary cell

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0071] Hereinafter, a first embodiment encompassed by the present invention will be described with reference to FIGS. 1-3.

[0072] The nonaqueous secondary electrolyte battery 10 according to the present embodiment includes an electrode body 11 (see FIG. 2 ) consisting of a positive electrode plate, a negative electrode plate, and a separator housed in a battery case 13 composed of a resin plate 12 (see FIG. 3 ). A material (not shown) is formed together with a non-aqueous electrolyte (not shown). Parameter 14 represents the positive terminal, and parameter 15 represents the negative terminal. Parameter 16 indicates the edge to be welded on the end of the battery case on which the illustrated portion of the terminal 14, 15 is placed. Parameter 17 indicates the edge to be welded on the end of the battery case opposite edge 16 .

[0073] The resin board 12 is an aluminum-resin board. As shown in FIG. 3 , the resin plate 12 includes, in descending order, a PET layer 121 with ...

no. 2 example

[0093] The nonaqueous secondary electrolyte battery according to the present embodiment includes an elliptical wound power generating element consisting of a positive electrode plate housed in a pouch-shaped battery case formed by a hot-melt metal laminated resin film, a separator material, and a negative electrode plate with a non-aqueous electrode plate. A water electrolyte (not shown) is formed together. The appearance of this nonaqueous secondary electrolyte battery is shown in FIG. 4 . A reference number 20 denotes a pouch-shaped battery case, and a reference number 21 denotes a power generating element including a positive electrode plate and a negative electrode plate wound elliptically by a polyethylene microporous film (separator) as a separator. Parameter 22 represents the winding shaft of the generating element, parameter 23 represents the positive lead end connected to the positive plate, and parameter 24 represents the negative lead end connected to the negative p...

no. 3 example

[0116] This embodiment differs from the above-described second embodiment only in the structure of the electrolytic solution and the welded portion. Other structures of this embodiment are the same as those of the second embodiment shown in Figs. 4-6. As for the battery of the third embodiment, the following six batteries 3A-3F were prepared. As for the electrolyte solution, these batteries use a 6 A 3:8 (by volume) mixture of ethylene carbonate and diethyl carbonate.

[0117] battery 3A

[0118] The structure of the welded part is shown in Figure 8. The thickness Y of the inner end of the welded portion was 300 μm, and the thickness X of the outer end of the welded portion was 250 μm.

[0119] Battery 3B

[0120] The structure of the welded part is shown in Figure 8. The thickness Y of the inner end of the welded portion was 300 μm, and the thickness X of the outer end of the welded portion was 200 μm.

[0121] Battery 3C

[0122] The structure of the welded part is s...

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
radiusaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

A nonaqueous secondary electrolytic battery comprising an electricity-generating element formed by spirally winding a laminate of a positive electrode plate, a separating material and a negative electrode plate, and an electrolytic solution with which the separating material, if it is a separator, is impregnated. The electricity-generating element is sealed in a battery case formed by a resin-laminated sheet comprising a metal layer as a barrier layer. Only a pair of lead terminals are drawn to the exterior of the battery case. The resin sheet comprises an oriented resin layer laminated on both surfaces of the metal layer. The inner heat-fused layers are opposed and heat-fused to each other. A molten and solidified resin mass is formed protruding from the inner end of the welded portion toward the inner space of the battery by 0.1 mm or more. Alternatively, the welded portion is formed thinner at the outer end thereof than at the inner end thereof.

Description

[0001] This application is a divisional application of a patent application with an application date of November 4, 1999, an application number of 200410097832.6, and an invention title of "Non-Aqueous Secondary Electrolyte Battery". technical field [0002] The present invention relates to a battery including a case formed of a resin plate. Background technique [0003] In recent years, electronic equipment such as portable cordless phones, portable personal computers, and portable video cameras have been developed. Various electronic devices have been reduced in size to such an extent that they are portable. This requires the use of batteries with high energy density and light weight to be installed in these electronic devices. A typical battery meeting these requirements is a non-aqueous secondary electrolyte battery comprising: as the negative electrode material, a lithium intercalation compound having the ability to absorb and act as a matrix material (the term "matrix...

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): H01M2/02H01M2/20H01M10/40B32B15/08
CPCY02E60/122Y02E60/10Y02P70/50
Inventor 小松茂生向井宽村井哲也北野真也冈田干雄水谷实中原浩永田干人汤本博幸
Owner GS YUASA INT 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