Lithium secondary battery

US9178197B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9178197-B2
Application numberUS-201314090712-A
CountryUS
Kind codeB2
Filing dateNov 26, 2013
Priority dateMay 31, 2012
Publication dateNov 3, 2015
Grant dateNov 3, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

The present invention provides a lithium secondary battery, comprising a cathode, an anode, a non-aqueous solution containing a lithium salt and an organic solvent, and a safety vent for removing increased internal pressure, the non-aqueous solution having the prescribed composition and the safety vent having the prescribed operational characteristics. The lithium secondary battery of the present invention can ensure its safety even when overcharged.

First claim

Opening claim text (preview).

What is claimed is: 1. A lithium secondary battery, comprising a cathode, an anode, a non-aqueous solution containing a lithium salt and an organic solvent, and a safety vent for removing increased internal pressure, wherein the safety vent has a vent hole whose opening pressure is in the range of 3.5 to 15 kgf/cm 2 ; and the non-aqueous solution further contains a mixture of halogen-substituted or unsubstituted toluene and halogen-substituted or unsubstituted xylene as an additiv…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9178197B2 cover?
The present invention provides a lithium secondary battery, comprising a cathode, an anode, a non-aqueous solution containing a lithium salt and an organic solvent, and a safety vent for removing increased internal pressure, the non-aqueous solution having the prescribed composition and the safety vent having the prescribed operational characteristics. The lithium secondary battery of the prese…
Who is the assignee on this patent?
Lg Chemical Ltd
What technology area does this patent fall under?
Primary CPC classification H01M2/1276. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Nov 03 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).