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Germanium-containing active material for anodes for lithium-ion devices

  • US 9,871,247 B2
  • Filed: 09/21/2016
  • Issued: 01/16/2018
  • Est. Priority Date: 11/18/2014
  • Status: Active Grant
First Claim
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1. An active material for producing an anode for a lithium ion device, the active material comprising:

  • germanium nano-particles having a particle size of 20 to 100 nm, wherein the weight percentage of the germanium is between 72 to 96 weight % of the total weight of the active material;

    boron carbide nano-particles having a particle size of 20 to 100 nm, wherein the weight percentage of boron in the active material is between 3 to 6 weight % of the total weight of the active material; and

    tungsten carbide nano-particles having a particle size of 20 to 60 nm, wherein the weight percentage of tungsten in the active material is between 6 to 25 weight % of the total weight of the active material.

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