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Separator for non-aqueous storage accumulator and non-aqueous storage accumulator using same

一种分隔器、蓄电池的技术，应用在非水电解质蓄电池、锂蓄电池、电解质蓄电池制造等方向，能够解决不能满足循环使用寿命特性或存放特性等问题

Inactive Publication Date: 2005-08-03
GS YUASA INT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the non-aqueous storage batteries in the prior art show extremely good characteristics at room temperature, but obviously cannot meet the needs of cycle life characteristics or storage characteristics at high temperatures

Method used

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  • Separator for non-aqueous storage accumulator and non-aqueous storage accumulator using same
  • Separator for non-aqueous storage accumulator and non-aqueous storage accumulator using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] figure 1 The cross-sectional structure of the prismatic non-aqueous secondary battery of Example 1 is described. The prismatic non-aqueous secondary battery of Example 1 was assembled by placing the plate member 2 in a metal battery case 6 of nickel-plated iron, and then injecting an electrolyte into the battery case. The plate element 2 is obtained by winding an anode 3 coated with an anode mixture on an aluminum collector and a cathode 4 coated with a cathode mixture on a copper collector with a separator 5 sandwiched between them. The plate elements were arranged in such a manner that the black surface of the separator to be described later was in contact with the anode. The designed battery capacity is 600mAh.

[0042] The battery case 6 is sealed with a battery cover 7 by laser welding. The battery cover 7 has a safety valve 8 . The anode 3 is connected to the positive terminal 9 by an anode lead 10 . The cathode 4 is electrically connected to the battery case...

Embodiment 2

[0052] The same microporous polyethylene separator used in Example 1 was dehydrogenated in the same manner as in Example 1. The battery of Example 2 was prepared using a separator containing a conjugated polyene compound formed on both surfaces thereof in the same manner as in Example 1.

Embodiment 3

[0054] The battery of Example 3 was prepared in the same manner as in Example 1, except that the arrangement of the black surface (the surface containing the conjugated polyene compound) of the separator was changed so that the black surface faced the cathode.

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Abstract

The present invention provides a nonaqueous secondary battery and a separator to be used therein. The separator comprises a polyolefin membrane containing one or more conjugated polyene compounds provided on the surface thereof. The nonaqueous secondary battery having this arrangement performs improved cycle life characteristics and shelf characteristics at high temperatures.

Description

technical field [0001] The present invention relates to a separator for a nonaqueous storage battery and a nonaqueous storage battery using the same. Background technique [0002] In recent years, electronic devices such as portable phones and portable personal computers have been reduced in size and weight and improved in performance, using batteries having high energy density and light weight. A typical battery meeting said requirements is a non-aqueous storage battery. [0003] A non-aqueous storage battery containing lithium cobalt composite oxide, lithium nickel composite oxide, spinning lithium magnesium oxide, etc. Lithium intercalation compounds of lithium ions in (the term "host material" here refers to materials capable of sealing or releasing lithium ions) and the like. The electrolyte used is a lithium salt such as LiClO in an aprotic organic solvent 4 or LiPF 6 . The separator used is a material obtained by processing a polyolefin material insoluble in orga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/04H01M10/05H01M10/058H01M50/403H01M50/417H01M50/451H01M50/491
CPCH01M2/1686H01M10/0431H01M10/052H01M2/1653H01M2/145Y02E60/10H01M50/403Y02P70/50H01M50/417H01M50/451H01M50/491
Inventor 亘幸洋青木卓
Owner GS YUASA INT LTD
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