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Methods for making anodes for germanium-containing lithium-ion devices

  • US 9,583,761 B2
  • Filed: 09/14/2016
  • Issued: 02/28/2017
  • Est. Priority Date: 11/18/2014
  • Status: Active Grant
First Claim
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1. A method for making an anode for lithium ion devices, the method comprising:

  • milling germanium powder, carbon, and boron carbide powder to form a nano-particle mixture having a particle size of 20 to 100 nm;

    adding an emulsion of tungsten carbide nano-particles having a particle size of 20 to 60 nm to the mixture to form an active material; and

    adding a polymeric binder to the active material to form the anode,wherein the weight percentage of the germanium in the anode is between 5 to 80 weight % of the total weight of the anode, the weight percentage of boron in the anode is between 2 to 20 weight % of the total weight of the anode and the weight percentage of tungsten in the anode is between 5 to 20 weight % of the total weight of the anode.

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