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Negative electrode for lithium secondary battery and method for producing same

  • US 8,986,883 B2
  • Filed: 11/10/2010
  • Issued: 03/24/2015
  • Est. Priority Date: 11/16/2009
  • Status: Active Grant
First Claim
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1. A negative electrode for the lithium secondary battery, comprisinga current collector;

  • andan electrode layer that is formed on the current collector and contains at least a negative electrode active material, a conductive assistant and a binder component,wherein the negative electrode active material is composed of α

    -Fe2O3 particles that generate a conversion electrode reaction and the binder component is a mixture of polyamide acid and partially imidized polyamide acid, a rate of imidization is 0.3 to 30%, and a concentration of the binder component of the electrode layer is configured so that the concentration decreases as distanced from the current collector.

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