Method for manufacturing sealed battery

US9660300B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9660300-B2
Application numberUS-201414198136-A
CountryUS
Kind codeB2
Filing dateMar 5, 2014
Priority dateMar 21, 2013
Publication dateMay 23, 2017
Grant dateMay 23, 2017

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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.

A method for manufacturing a sealed battery includes: injecting an electrolytic solution into an exterior; introducing a detection gas into the exterior; and detecting a leakage by detecting a leakage of the detection gas introduced into the exterior, the electrolytic solution in an electrolytic solution tank is pressure fed into the exterior by pressurizing the electrolytic solution tank by feeding a gas of a kind the same as the detection gas in the electrolytic solution tank where the electrolytic solution is stored, in order to inject the electrolytic solution into the battery container.

First claim

Opening claim text (preview).

What is claimed is: 1. A method for manufacturing a sealed battery, the method comprising: storing an electrolytic solution in a storage device in a sealed state; feeding a pressurized feeding gas into the storage device where the electrolytic solution is stored; after the electrolytic solution is stored in the storage device and the storage device is pressurized by feeding the pressurized feeding gas from a feeding gas feed source, injecting the electrolytic solution into a battery container via a liquid injection nozzle, the electrolytic solution being pressure fed from the storage device to the injection nozzle using the pressurized feeding gas; introducing a detection gas into the battery container, the detection gas being identical to the pressurized feeding gas; and detecting a leakage of the detection gas introduced into the battery container. 2. The method for manufacturing a sealed battery according to claim 1 , wherein the pressurized feeding gas and the detection gas contain helium. 3. The method for manufacturing a sealed battery according to claim 1 , wherein the pressurized feeding gas and the detection gas contain hydrogen.

Assignees

Inventors

Classifications

  • Leak testing of cells or batteries · CPC title

  • including measuring or testing of device or component part · CPC title

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

  • Energy storage using batteries · CPC title

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Frequently asked questions

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What does patent US9660300B2 cover?
A method for manufacturing a sealed battery includes: injecting an electrolytic solution into an exterior; introducing a detection gas into the exterior; and detecting a leakage by detecting a leakage of the detection gas introduced into the exterior, the electrolytic solution in an electrolytic solution tank is pressure fed into the exterior by pressurizing the electrolytic solution tank by fe…
Who is the assignee on this patent?
Tsukui Akira, Toyota Motor Co Ltd
What technology area does this patent fall under?
Primary CPC classification H01M10/4228. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue May 23 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).