Si alloy negative electrode active material for electric device

US9228249B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9228249-B2
Application numberUS-201013394977-A
CountryUS
Kind codeB2
Filing dateNov 26, 2010
Priority dateNov 27, 2009
Publication dateJan 5, 2016
Grant dateJan 5, 2016

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A negative electrode active material for an electric device, including an alloy having a composition formula Si x Zn y Al z , where x++y=100 , 26≦x≦47, 18≦y≦44, and 22≦z≦46 are satisfied.

First claim

Opening claim text (preview).

The invention claimed is: 1. A negative electrode for an electric device, comprising a negative electrode active material which comprises an alloy having a composition formula Si x Zn y Al z , where x+y+z=100, 26≦x≦47, 18≦y≦44, and 22≦z≦46, where each of x, y, and z represents a mass percent value. 2. An electric device comprising the negative electrode according to claim 1 . 3. The electric device according to claim 2 , which is a lithium ion secondary battery.

Assignees

Inventors

Classifications

  • with zinc as the next major constituent · CPC title

  • with silicon as the next major constituent · CPC title

  • Sputtering · CPC title

  • Silicon or alloys based on silicon · CPC title

  • Cross-Sectional Technologies · mapped topic

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What does patent US9228249B2 cover?
A negative electrode active material for an electric device, including an alloy having a composition formula Si x Zn y Al z , where x++y=100 , 26≦x≦47, 18≦y≦44, and 22≦z≦46 are satisfied.
Who is the assignee on this patent?
Watanabe Manabu, Tanaka Osamu, Miyamoto Takashi, and 1 more
What technology area does this patent fall under?
Primary CPC classification C22C18/00. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jan 05 2016 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).