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Nonaqueous electrolyte secondary cell

  • US 20060166098A1
  • Filed: 05/06/2003
  • Published: 07/27/2006
  • Est. Priority Date: 05/08/2002
  • Status: Active Grant
First Claim
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1. A non-aqueous electrolyte secondary battery comprising:

  • a positive electrode;

    a negative electrode having a negative active material; and

    a non-aqueous electrolyte;

    characterized in that said negative active material contains composite particle (C), which has silicon-containing particle (A) and electronic conductive additive (B), and carbon material (D), and the weight of said electronic conductive additive (B) falls within the range of 0.5 wt. % to 60 wt. % to the weight of said composite particle (C).

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