Negative active material for rechargeable lithium battery, method of preparing same, and rechargeable lithium battery including same

Negative active material for rechargeable lithium battery, method of preparing same, and rechargeable lithium battery including same

  • CN 101,286,561 A
  • Filed: 12/17/2007
  • Published: 10/15/2008
  • Est. Priority Date: 04/13/2007
  • Status: Active Application
First Claim
Patent Images

1. , a kind of negative active core-shell material that is used for chargeable lithium cell comprises:

  • Compound by formula 1 expression, and has the average particle size particle size of scope from about 50nm to 30 μ

    m,Formula 1Li 1+xV 1-x-yM yO 2+zWherein, 0.01≤

    x≤

    0.5,0<

    y≤

    0.3 ,-0.2≤

    z≤

    0.2, and M selects from the group of being made up of transition elements, alkali metal, alkaline-earth metal, semimetal and their combination.

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