Method of manufacturing secondary battery

US2015236335A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2015236335-A1
Application numberUS-201314420997-A
CountryUS
Kind codeA1
Filing dateNov 8, 2013
Priority dateNov 8, 2012
Publication dateAug 20, 2015
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Disclosed is a method of manufacturing a secondary battery, built in a battery case, having an electrode assembly impregnated with an electrolyte solution, the method including: (a) injecting an electrolyte solution into a chamber; (b) impregnating by soaking an electrode assembly, which has a separator interposed between a cathode and an anode, in an electrolyte solution contained in the chamber; and (c) moving into the electrode assembly from step (b) with the electrolyte solution into a battery case, whereby interfacial wetting of the electrode assembly and the electrolyte solution is improved. A secondary battery manufactured according to the method may have improved electrolyte solution impregnation properties, ionic conductivity, electronic conductivity and the like and, as such, may have improved electrochemical performance.

First claim

Opening claim text (preview).

1 . A method of manufacturing a secondary battery, built in a battery case, having an electrode assembly impregnated with an electrolyte solution, the method comprising: injecting an electrolyte solution into a chamber; impregnating by soaking an electrode assembly, which has a separator interposed between a cathode and an anode, in an electrolyte solution contained in the chamber; and moving the electrode assembly with the electrolyte solution into a battery case, whereby interfacial wetting of the electrode assembly and the electrolyte solution is improved. 2 . The method according to claim 1 , wherein a volume of the chamber is 1.5 times or more with respect to a volume of the electrode assembly. 3 . The method according to claim 1 , wherein a volume of the chamber is 2 times or more with respect to a volume of the electrode assembly. 4 . The method according to claim 1 , wherein the electrolyte solution has a viscosity of 0.1 cP or more and 5 cP or less. 5 . The method according to claim 1 , wherein the electrolyte solution has a viscosity of 1 cP or more and 4 cP or less. 6 . A secondary battery manufactured using the method according to claim 1 . 7 . The secondary battery according to claim 6 , wherein the secondary battery is a lithium secondary battery.

Assignees

Inventors

Classifications

  • H01M10/052Primary

    Li-accumulators · CPC title

  • Manufacturing or production processes characterised by the final manufactured product · CPC title

  • Energy storage using batteries · CPC title

  • H01M10/058Primary

    Construction or manufacture · CPC title

  • Arrangements or processes for filling with liquid, e.g. electrolytes · CPC title

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What does patent US2015236335A1 cover?
Disclosed is a method of manufacturing a secondary battery, built in a battery case, having an electrode assembly impregnated with an electrolyte solution, the method including: (a) injecting an electrolyte solution into a chamber; (b) impregnating by soaking an electrode assembly, which has a separator interposed between a cathode and an anode, in an electrolyte solution contained i…
Who is the assignee on this patent?
Lg Chemical Ltd
What technology area does this patent fall under?
Primary CPC classification H01M10/052. Mapped technology areas include Electricity.
When was this patent published?
Publication date Thu Aug 20 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).